// Protocol_1_8.cpp /* Implements the 1.8 protocol classes: - cProtocol_1_8_0 - release 1.8 protocol (#47) */ #include "Globals.h" #include "Protocol_1_8.h" #include "main.h" #include "../mbedTLS++/Sha1Checksum.h" #include "Packetizer.h" #include "../ClientHandle.h" #include "../Root.h" #include "../Server.h" #include "../World.h" #include "../EffectID.h" #include "../StringCompression.h" #include "../CompositeChat.h" #include "../UUID.h" #include "../World.h" #include "../JsonUtils.h" #include "../WorldStorage/FastNBT.h" #include "../WorldStorage/EnchantmentSerializer.h" #include "../Entities/ExpOrb.h" #include "../Entities/Minecart.h" #include "../Entities/FallingBlock.h" #include "../Entities/Floater.h" #include "../Entities/Painting.h" #include "../Entities/Pickup.h" #include "../Entities/Player.h" #include "../Entities/ItemFrame.h" #include "../Entities/ArrowEntity.h" #include "../Entities/FireworkEntity.h" #include "../Mobs/IncludeAllMonsters.h" #include "../UI/Window.h" #include "../UI/HorseWindow.h" #include "../BlockEntities/BannerEntity.h" #include "../BlockEntities/BeaconEntity.h" #include "../BlockEntities/CommandBlockEntity.h" #include "../BlockEntities/EnchantingTableEntity.h" #include "../BlockEntities/MobHeadEntity.h" #include "../BlockEntities/MobSpawnerEntity.h" #include "../BlockEntities/FlowerPotEntity.h" #include "../Bindings/PluginManager.h" #define HANDLE_READ(ByteBuf, Proc, Type, Var) \ Type Var; \ do { \ if (!ByteBuf.Proc(Var))\ {\ return;\ } \ } while (false) #define HANDLE_PACKET_READ(ByteBuf, Proc, Type, Var) \ Type Var; \ do { \ { \ if (!ByteBuf.Proc(Var)) \ { \ ByteBuf.CheckValid(); \ return false; \ } \ ByteBuf.CheckValid(); \ } \ } while (false) const int MAX_ENC_LEN = 512; // Maximum size of the encrypted message; should be 128, but who knows... static const UInt32 CompressionThreshold = 256; // After how large a packet should we compress it. //////////////////////////////////////////////////////////////////////////////// // cProtocol_1_8_0: cProtocol_1_8_0::cProtocol_1_8_0(cClientHandle * a_Client, const AString & a_ServerAddress, State a_State) : Super(a_Client), m_State(a_State), m_ServerAddress(a_ServerAddress), m_IsEncrypted(false) { AStringVector Params; SplitZeroTerminatedStrings(a_ServerAddress, Params); if (Params.size() >= 2) { m_ServerAddress = Params[0]; if (Params[1] == "FML") { LOGD("Forge client connected!"); m_Client->SetIsForgeClient(); } else if (Params.size() == 4) { if (cRoot::Get()->GetServer()->ShouldAllowBungeeCord()) { // BungeeCord handling: // If BC is setup with ip_forward == true, it sends additional data in the login packet's ServerAddress field: // hostname\00ip-address\00uuid\00profile-properties-as-json LOGD("Player at %s connected via BungeeCord", Params[1].c_str()); m_Client->SetIPString(Params[1]); cUUID UUID; UUID.FromString(Params[2]); m_Client->SetUUID(UUID); Json::Value root; if (!JsonUtils::ParseString(Params[3], root)) { LOGERROR("Unable to parse player properties: '%s'", Params[3]); } else { m_Client->SetProperties(root); } } else { LOG("BungeeCord is disabled, but client sent additional data, set AllowBungeeCord=1 if you want to allow it"); } } else { LOG("Unknown additional data sent in server address (BungeeCord/FML?): %zu parameters", Params.size()); // TODO: support FML + BungeeCord? (what parameters does it send in that case?) https://github.com/SpigotMC/BungeeCord/issues/899 } } // Create the comm log file, if so requested: if (g_ShouldLogCommIn || g_ShouldLogCommOut) { static int sCounter = 0; cFile::CreateFolder("CommLogs"); AString IP(a_Client->GetIPString()); ReplaceString(IP, ":", "_"); AString FileName = Printf("CommLogs/%x_%d__%s.log", static_cast(time(nullptr)), sCounter++, IP.c_str() ); if (!m_CommLogFile.Open(FileName, cFile::fmWrite)) { LOG("Cannot log communication to file, the log file \"%s\" cannot be opened for writing.", FileName.c_str()); } } } void cProtocol_1_8_0::DataReceived(cByteBuffer & a_Buffer, ContiguousByteBuffer && a_Data) { if (m_IsEncrypted) { m_Decryptor.ProcessData(a_Data.data(), a_Data.size()); } AddReceivedData(a_Buffer, a_Data); } void cProtocol_1_8_0::SendAttachEntity(const cEntity & a_Entity, const cEntity & a_Vehicle) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktAttachEntity); Pkt.WriteBEUInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt32(a_Vehicle.GetUniqueID()); Pkt.WriteBool(false); } void cProtocol_1_8_0::SendBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktBlockAction); Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ); Pkt.WriteBEInt8(a_Byte1); Pkt.WriteBEInt8(a_Byte2); Pkt.WriteVarInt32(a_BlockType); } void cProtocol_1_8_0::SendBlockBreakAnim(UInt32 a_EntityID, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Stage) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktBlockBreakAnim); Pkt.WriteVarInt32(a_EntityID); Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ); Pkt.WriteBEInt8(a_Stage); } void cProtocol_1_8_0::SendBlockChange(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktBlockChange); Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ); Pkt.WriteVarInt32((static_cast(a_BlockType) << 4) | (static_cast(a_BlockMeta) & 15)); } void cProtocol_1_8_0::SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktBlockChanges); Pkt.WriteBEInt32(a_ChunkX); Pkt.WriteBEInt32(a_ChunkZ); Pkt.WriteVarInt32(static_cast(a_Changes.size())); for (sSetBlockVector::const_iterator itr = a_Changes.begin(), end = a_Changes.end(); itr != end; ++itr) { Int16 Coords = static_cast(itr->m_RelY | (itr->m_RelZ << 8) | (itr->m_RelX << 12)); Pkt.WriteBEInt16(Coords); Pkt.WriteVarInt32(static_cast(itr->m_BlockType & 0xFFF) << 4 | (itr->m_BlockMeta & 0xF)); } // for itr - a_Changes[] } void cProtocol_1_8_0::SendBossBarAdd(UInt32 a_UniqueID, const cCompositeChat & a_Title, float a_FractionFilled, BossBarColor a_Color, BossBarDivisionType a_DivisionType, bool a_DarkenSky, bool a_PlayEndMusic, bool a_CreateFog) { // No such packet here } void cProtocol_1_8_0::SendBossBarRemove(UInt32 a_UniqueID) { // No such packet here } void cProtocol_1_8_0::SendBossBarUpdateFlags(UInt32 a_UniqueID, bool a_DarkenSky, bool a_PlayEndMusic, bool a_CreateFog) { // No such packet here } void cProtocol_1_8_0::SendBossBarUpdateHealth(UInt32 a_UniqueID, float a_FractionFilled) { // No such packet here } void cProtocol_1_8_0::SendBossBarUpdateStyle(UInt32 a_UniqueID, BossBarColor a_Color, BossBarDivisionType a_DivisionType) { // No such packet here } void cProtocol_1_8_0::SendBossBarUpdateTitle(UInt32 a_UniqueID, const cCompositeChat & a_Title) { // No such packet here } void cProtocol_1_8_0::SendCameraSetTo(const cEntity & a_Entity) { cPacketizer Pkt(*this, pktCameraSetTo); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); } void cProtocol_1_8_0::SendChat(const AString & a_Message, eChatType a_Type) { ASSERT(m_State == 3); // In game mode? SendChatRaw(Printf("{\"text\":\"%s\"}", EscapeString(a_Message).c_str()), a_Type); } void cProtocol_1_8_0::SendChat(const cCompositeChat & a_Message, eChatType a_Type, bool a_ShouldUseChatPrefixes) { ASSERT(m_State == 3); // In game mode? SendChatRaw(a_Message.CreateJsonString(a_ShouldUseChatPrefixes), a_Type); } void cProtocol_1_8_0::SendChatRaw(const AString & a_MessageRaw, eChatType a_Type) { ASSERT(m_State == 3); // In game mode? // Send the json string to the client: cPacketizer Pkt(*this, pktChatRaw); Pkt.WriteString(a_MessageRaw); Pkt.WriteBEInt8(a_Type); } void cProtocol_1_8_0::SendChunkData(const ContiguousByteBufferView a_ChunkData) { ASSERT(m_State == 3); // In game mode? cCSLock Lock(m_CSPacket); SendData(a_ChunkData); } void cProtocol_1_8_0::SendCollectEntity(const cEntity & a_Collected, const cEntity & a_Collector, unsigned a_Count) { UNUSED(a_Count); ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktCollectEntity); Pkt.WriteVarInt32(a_Collected.GetUniqueID()); Pkt.WriteVarInt32(a_Collector.GetUniqueID()); } void cProtocol_1_8_0::SendDestroyEntity(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? { cPacketizer Pkt(*this, pktDestroyEntity); Pkt.WriteVarInt32(1); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); } if (!a_Entity.IsMob()) { return; } const auto & Mob = static_cast(a_Entity); if ((Mob.GetMobType() == mtEnderDragon) || (Mob.GetMobType() == mtWither)) { SendBossBarRemove(Mob.GetUniqueID()); } } void cProtocol_1_8_0::SendDetachEntity(const cEntity & a_Entity, const cEntity & a_PreviousVehicle) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktAttachEntity); Pkt.WriteBEUInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt32(0); Pkt.WriteBool(false); } void cProtocol_1_8_0::SendDisconnect(const AString & a_Reason) { switch (m_State) { case State::Login: { cPacketizer Pkt(*this, pktDisconnectDuringLogin); Pkt.WriteString(Printf("{\"text\":\"%s\"}", EscapeString(a_Reason).c_str())); break; } case State::Game: { cPacketizer Pkt(*this, pktDisconnectDuringGame); Pkt.WriteString(Printf("{\"text\":\"%s\"}", EscapeString(a_Reason).c_str())); break; } default: { FLOGERROR( "Tried to send disconnect in invalid game state {0}", static_cast(m_State) ); } } } void cProtocol_1_8_0::SendEditSign(int a_BlockX, int a_BlockY, int a_BlockZ) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktEditSign); Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ); } void cProtocol_1_8_0::SendEntityAnimation(const cEntity & a_Entity, const EntityAnimation a_Animation) { ASSERT(m_State == 3); // In game mode? if (a_Animation == EntityAnimation::PlayerEntersBed) { ASSERT(a_Entity.IsPlayer()); const auto BedPosition = static_cast(a_Entity).GetLastBedPos(); cPacketizer Pkt(*this, pktUseBed); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteXYZPosition64(BedPosition.x, BedPosition.y, BedPosition.z); return; } if (const auto AnimationID = GetProtocolEntityAnimation(a_Animation); AnimationID != static_cast(-1)) { cPacketizer Pkt(*this, pktEntityAnimation); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt8(AnimationID); return; } if (const auto StatusID = GetProtocolEntityStatus(a_Animation); StatusID != -1) { cPacketizer Pkt(*this, pktEntityStatus); Pkt.WriteBEUInt32(a_Entity.GetUniqueID()); Pkt.WriteBEInt8(StatusID); } } void cProtocol_1_8_0::SendEntityEffect(const cEntity & a_Entity, int a_EffectID, int a_Amplifier, int a_Duration) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktEntityEffect); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_EffectID)); Pkt.WriteBEUInt8(static_cast(a_Amplifier)); Pkt.WriteVarInt32(static_cast(a_Duration)); Pkt.WriteBool(false); // Hide particles } void cProtocol_1_8_0::SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktEntityEquipment); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEInt16(a_SlotNum); WriteItem(Pkt, a_Item); } void cProtocol_1_8_0::SendEntityHeadLook(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktEntityHeadLook); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteByteAngle(a_Entity.GetHeadYaw()); } void cProtocol_1_8_0::SendEntityLook(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktEntityLook); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteByteAngle(a_Entity.GetYaw()); Pkt.WriteByteAngle(a_Entity.GetPitch()); Pkt.WriteBool(a_Entity.IsOnGround()); } void cProtocol_1_8_0::SendEntityMetadata(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktEntityMeta); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); WriteEntityMetadata(Pkt, a_Entity); Pkt.WriteBEUInt8(0x7f); // The termination byte } void cProtocol_1_8_0::SendEntityPosition(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? const auto Delta = (a_Entity.GetPosition() - a_Entity.GetLastSentPosition()) * 32; // Limitations of a byte static const auto Max = std::numeric_limits::max(); if ((std::abs(Delta.x) <= Max) && (std::abs(Delta.y) <= Max) && (std::abs(Delta.z) <= Max)) { const auto Move = static_cast>(Delta); // Difference within limitations, use a relative move packet if (a_Entity.IsOrientationDirty()) { cPacketizer Pkt(*this, pktEntityRelMoveLook); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEInt8(Move.x); Pkt.WriteBEInt8(Move.y); Pkt.WriteBEInt8(Move.z); Pkt.WriteByteAngle(a_Entity.GetYaw()); Pkt.WriteByteAngle(a_Entity.GetPitch()); Pkt.WriteBool(a_Entity.IsOnGround()); } else { cPacketizer Pkt(*this, pktEntityRelMove); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEInt8(Move.x); Pkt.WriteBEInt8(Move.y); Pkt.WriteBEInt8(Move.z); Pkt.WriteBool(a_Entity.IsOnGround()); } return; } // Too big a movement, do a teleport SendEntityTeleport(a_Entity); } void cProtocol_1_8_0::SendEntityProperties(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktEntityProperties); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); WriteEntityProperties(Pkt, a_Entity); } void cProtocol_1_8_0::SendEntityVelocity(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktEntityVelocity); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); // 400 = 8000 / 20 ... Conversion from our speed in m / s to 8000 m / tick Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedX() * 400)); Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedY() * 400)); Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedZ() * 400)); } void cProtocol_1_8_0::SendExperience(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktExperience); cPlayer * Player = m_Client->GetPlayer(); Pkt.WriteBEFloat(Player->GetXpPercentage()); Pkt.WriteVarInt32(static_cast(Player->GetXpLevel())); Pkt.WriteVarInt32(static_cast(Player->GetCurrentXp())); } void cProtocol_1_8_0::SendExperienceOrb(const cExpOrb & a_ExpOrb) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktSpawnExperienceOrb); Pkt.WriteVarInt32(a_ExpOrb.GetUniqueID()); Pkt.WriteFPInt(a_ExpOrb.GetPosX()); Pkt.WriteFPInt(a_ExpOrb.GetPosY()); Pkt.WriteFPInt(a_ExpOrb.GetPosZ()); Pkt.WriteBEInt16(static_cast(a_ExpOrb.GetReward())); } void cProtocol_1_8_0::SendExplosion(const Vector3f a_Position, const float a_Power) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktExplosion); Pkt.WriteBEFloat(a_Position.x); Pkt.WriteBEFloat(a_Position.y); Pkt.WriteBEFloat(a_Position.z); Pkt.WriteBEFloat(a_Power); Pkt.WriteBEUInt32(0); Pkt.WriteBEFloat(0); Pkt.WriteBEFloat(0); Pkt.WriteBEFloat(0); } void cProtocol_1_8_0::SendGameMode(eGameMode a_GameMode) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktGameMode); Pkt.WriteBEUInt8(3); // Reason: Change game mode Pkt.WriteBEFloat(static_cast(a_GameMode)); // The protocol really represents the value with a float! } void cProtocol_1_8_0::SendHealth(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktUpdateHealth); cPlayer * Player = m_Client->GetPlayer(); Pkt.WriteBEFloat(static_cast(Player->GetHealth())); Pkt.WriteVarInt32(static_cast(Player->GetFoodLevel())); Pkt.WriteBEFloat(static_cast(Player->GetFoodSaturationLevel())); } void cProtocol_1_8_0::SendHeldItemChange(int a_ItemIndex) { ASSERT((a_ItemIndex >= 0) && (a_ItemIndex <= 8)); // Valid check cPacketizer Pkt(*this, pktHeldItemChange); Pkt.WriteBEInt8(static_cast(a_ItemIndex)); } void cProtocol_1_8_0::SendHideTitle(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktTitle); Pkt.WriteVarInt32(3); // Hide title } void cProtocol_1_8_0::SendInventorySlot(char a_WindowID, short a_SlotNum, const cItem & a_Item) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktInventorySlot); Pkt.WriteBEInt8(a_WindowID); Pkt.WriteBEInt16(a_SlotNum); WriteItem(Pkt, a_Item); } void cProtocol_1_8_0::SendKeepAlive(UInt32 a_PingID) { // Drop the packet if the protocol is not in the Game state yet (caused a client crash): if (m_State != 3) { LOGWARNING("Trying to send a KeepAlive packet to a player who's not yet fully logged in (%d). The protocol class prevented the packet.", m_State); return; } cPacketizer Pkt(*this, pktKeepAlive); Pkt.WriteVarInt32(a_PingID); } void cProtocol_1_8_0::SendLeashEntity(const cEntity & a_Entity, const cEntity & a_EntityLeashedTo) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktLeashEntity); Pkt.WriteBEUInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt32(a_EntityLeashedTo.GetUniqueID()); Pkt.WriteBool(true); } void cProtocol_1_8_0::SendUnleashEntity(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktLeashEntity); Pkt.WriteBEUInt32(a_Entity.GetUniqueID()); Pkt.WriteBEInt32(-1); Pkt.WriteBool(true); } void cProtocol_1_8_0::SendLogin(const cPlayer & a_Player, const cWorld & a_World) { // Send the Join Game packet: { cServer * Server = cRoot::Get()->GetServer(); cPacketizer Pkt(*this, pktJoinGame); Pkt.WriteBEUInt32(a_Player.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_Player.GetEffectiveGameMode()) | (Server->IsHardcore() ? 0x08 : 0)); // Hardcore flag bit 4 Pkt.WriteBEInt8(static_cast(a_World.GetDimension())); Pkt.WriteBEUInt8(2); // TODO: Difficulty (set to Normal) Pkt.WriteBEUInt8(static_cast(Clamp(Server->GetMaxPlayers(), 0, 255))); Pkt.WriteString("default"); // Level type - wtf? Pkt.WriteBool(false); // Reduced Debug Info - wtf? } // Send the spawn position: { cPacketizer Pkt(*this, pktSpawnPosition); Pkt.WriteXYZPosition64(FloorC(a_World.GetSpawnX()), FloorC(a_World.GetSpawnY()), FloorC(a_World.GetSpawnZ())); } // Send the server difficulty: { cPacketizer Pkt(*this, pktDifficulty); Pkt.WriteBEInt8(1); } } void cProtocol_1_8_0::SendLoginSuccess(void) { ASSERT(m_State == 2); // State: login? // Enable compression: { cPacketizer Pkt(*this, pktStartCompression); Pkt.WriteVarInt32(CompressionThreshold); } m_State = State::Game; { cPacketizer Pkt(*this, pktLoginSuccess); Pkt.WriteString(m_Client->GetUUID().ToLongString()); Pkt.WriteString(m_Client->GetUsername()); } } void cProtocol_1_8_0::SendPaintingSpawn(const cPainting & a_Painting) { ASSERT(m_State == 3); // In game mode? double PosX = a_Painting.GetPosX(); double PosY = a_Painting.GetPosY(); double PosZ = a_Painting.GetPosZ(); cPacketizer Pkt(*this, pktSpawnPainting); Pkt.WriteVarInt32(a_Painting.GetUniqueID()); Pkt.WriteString(a_Painting.GetName()); Pkt.WriteXYZPosition64(static_cast(PosX), static_cast(PosY), static_cast(PosZ)); Pkt.WriteBEInt8(static_cast(a_Painting.GetProtocolFacing())); } void cProtocol_1_8_0::SendMapData(const cMap & a_Map, int a_DataStartX, int a_DataStartY) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktMapData); Pkt.WriteVarInt32(a_Map.GetID()); Pkt.WriteBEUInt8(static_cast(a_Map.GetScale())); Pkt.WriteVarInt32(static_cast(a_Map.GetDecorators().size())); for (const auto & Decorator : a_Map.GetDecorators()) { Pkt.WriteBEUInt8(static_cast((static_cast(Decorator.GetType()) << 4) | (Decorator.GetRot() & 0xF))); Pkt.WriteBEUInt8(static_cast(Decorator.GetPixelX())); Pkt.WriteBEUInt8(static_cast(Decorator.GetPixelZ())); } Pkt.WriteBEUInt8(128); Pkt.WriteBEUInt8(128); Pkt.WriteBEUInt8(static_cast(a_DataStartX)); Pkt.WriteBEUInt8(static_cast(a_DataStartY)); Pkt.WriteVarInt32(static_cast(a_Map.GetData().size())); for (auto itr = a_Map.GetData().cbegin(); itr != a_Map.GetData().cend(); ++itr) { Pkt.WriteBEUInt8(*itr); } } void cProtocol_1_8_0::SendPlayerAbilities(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktPlayerAbilities); Byte Flags = 0; cPlayer * Player = m_Client->GetPlayer(); if (Player->IsGameModeCreative()) { Flags |= 0x01; Flags |= 0x08; // Godmode, used for creative } if (Player->IsFlying()) { Flags |= 0x02; } if (Player->CanFly()) { Flags |= 0x04; } Pkt.WriteBEUInt8(Flags); Pkt.WriteBEFloat(static_cast(0.05 * Player->GetFlyingMaxSpeed())); Pkt.WriteBEFloat(static_cast(0.1 * Player->GetNormalMaxSpeed())); } void cProtocol_1_8_0::SendParticleEffect(const AString & a_ParticleName, float a_SrcX, float a_SrcY, float a_SrcZ, float a_OffsetX, float a_OffsetY, float a_OffsetZ, float a_ParticleData, int a_ParticleAmount) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktParticleEffect); Pkt.WriteBEInt32(GetProtocolParticleID(a_ParticleName)); Pkt.WriteBool(false); Pkt.WriteBEFloat(a_SrcX); Pkt.WriteBEFloat(a_SrcY); Pkt.WriteBEFloat(a_SrcZ); Pkt.WriteBEFloat(a_OffsetX); Pkt.WriteBEFloat(a_OffsetY); Pkt.WriteBEFloat(a_OffsetZ); Pkt.WriteBEFloat(a_ParticleData); Pkt.WriteBEInt32(a_ParticleAmount); } void cProtocol_1_8_0::SendParticleEffect(const AString & a_ParticleName, Vector3f a_Src, Vector3f a_Offset, float a_ParticleData, int a_ParticleAmount, std::array a_Data) { ASSERT(m_State == 3); // In game mode? const auto ParticleID = GetProtocolParticleID(a_ParticleName); cPacketizer Pkt(*this, pktParticleEffect); Pkt.WriteBEInt32(ParticleID); Pkt.WriteBool(false); Pkt.WriteBEFloat(a_Src.x); Pkt.WriteBEFloat(a_Src.y); Pkt.WriteBEFloat(a_Src.z); Pkt.WriteBEFloat(a_Offset.x); Pkt.WriteBEFloat(a_Offset.y); Pkt.WriteBEFloat(a_Offset.z); Pkt.WriteBEFloat(a_ParticleData); Pkt.WriteBEInt32(a_ParticleAmount); switch (ParticleID) { // iconcrack case 36: { Pkt.WriteVarInt32(static_cast(a_Data[0])); Pkt.WriteVarInt32(static_cast(a_Data[1])); break; } // blockcrack // blockdust case 37: case 38: { Pkt.WriteVarInt32(static_cast(a_Data[0])); break; } } } void cProtocol_1_8_0::SendPlayerListAddPlayer(const cPlayer & a_Player) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktPlayerList); Pkt.WriteVarInt32(0); Pkt.WriteVarInt32(1); Pkt.WriteUUID(a_Player.GetUUID()); Pkt.WriteString(a_Player.GetPlayerListName()); const Json::Value & Properties = a_Player.GetClientHandle()->GetProperties(); Pkt.WriteVarInt32(Properties.size()); for (auto & Node : Properties) { Pkt.WriteString(Node.get("name", "").asString()); Pkt.WriteString(Node.get("value", "").asString()); AString Signature = Node.get("signature", "").asString(); if (Signature.empty()) { Pkt.WriteBool(false); } else { Pkt.WriteBool(true); Pkt.WriteString(Signature); } } Pkt.WriteVarInt32(static_cast(a_Player.GetEffectiveGameMode())); Pkt.WriteVarInt32(static_cast(a_Player.GetClientHandle()->GetPing())); Pkt.WriteBool(false); } void cProtocol_1_8_0::SendPlayerListHeaderFooter(const cCompositeChat & a_Header, const cCompositeChat & a_Footer) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktPlayerListHeaderFooter); Pkt.WriteString(a_Header.CreateJsonString(false)); Pkt.WriteString(a_Footer.CreateJsonString(false)); } void cProtocol_1_8_0::SendPlayerListRemovePlayer(const cPlayer & a_Player) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktPlayerList); Pkt.WriteVarInt32(4); Pkt.WriteVarInt32(1); Pkt.WriteUUID(a_Player.GetUUID()); } void cProtocol_1_8_0::SendPlayerListUpdateDisplayName(const cPlayer & a_Player, const AString & a_CustomName) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktPlayerList); Pkt.WriteVarInt32(3); Pkt.WriteVarInt32(1); Pkt.WriteUUID(a_Player.GetUUID()); if (a_CustomName.empty()) { Pkt.WriteBool(false); } else { Pkt.WriteBool(true); Pkt.WriteString(Printf("{\"text\":\"%s\"}", a_CustomName.c_str())); } } void cProtocol_1_8_0::SendPlayerListUpdateGameMode(const cPlayer & a_Player) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktPlayerList); Pkt.WriteVarInt32(1); Pkt.WriteVarInt32(1); Pkt.WriteUUID(a_Player.GetUUID()); Pkt.WriteVarInt32(static_cast(a_Player.GetEffectiveGameMode())); } void cProtocol_1_8_0::SendPlayerListUpdatePing() { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktPlayerList); Pkt.WriteVarInt32(2); const auto World = m_Client->GetPlayer()->GetWorld(); Pkt.WriteVarInt32(static_cast(World->GetPlayerCount())); World->ForEachPlayer([&Pkt](cPlayer & a_Player) { Pkt.WriteUUID(a_Player.GetUUID()); Pkt.WriteVarInt32(static_cast(a_Player.GetClientHandle()->GetPing())); return false; }); } void cProtocol_1_8_0::SendPlayerMoveLook(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktPlayerMoveLook); cPlayer * Player = m_Client->GetPlayer(); Pkt.WriteBEDouble(Player->GetPosX()); Pkt.WriteBEDouble(Player->GetPosY()); Pkt.WriteBEDouble(Player->GetPosZ()); Pkt.WriteBEFloat(static_cast(Player->GetYaw())); Pkt.WriteBEFloat(static_cast(Player->GetPitch())); Pkt.WriteBEUInt8(0); } void cProtocol_1_8_0::SendPlayerPosition(void) { // There is no dedicated packet for this, send the whole thing: SendPlayerMoveLook(); } void cProtocol_1_8_0::SendPlayerSpawn(const cPlayer & a_Player) { // Called to spawn another player for the client cPacketizer Pkt(*this, pktSpawnOtherPlayer); Pkt.WriteVarInt32(a_Player.GetUniqueID()); Pkt.WriteUUID(a_Player.GetUUID()); Vector3d LastSentPos = a_Player.GetLastSentPosition(); Pkt.WriteFPInt(LastSentPos.x); Pkt.WriteFPInt(LastSentPos.y + 0.001); // The "+ 0.001" is there because otherwise the player falls through the block they were standing on. Pkt.WriteFPInt(LastSentPos.z); Pkt.WriteByteAngle(a_Player.GetYaw()); Pkt.WriteByteAngle(a_Player.GetPitch()); Pkt.WriteBEInt16(a_Player.GetEquippedItem().IsEmpty() ? 0 : a_Player.GetEquippedItem().m_ItemType); WriteEntityMetadata(Pkt, a_Player); Pkt.WriteBEUInt8(0x7f); // Metadata: end } void cProtocol_1_8_0::SendPluginMessage(const AString & a_Channel, const ContiguousByteBufferView a_Message) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktPluginMessage); Pkt.WriteString(a_Channel); Pkt.WriteBuf(a_Message); } void cProtocol_1_8_0::SendRemoveEntityEffect(const cEntity & a_Entity, int a_EffectID) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktRemoveEntityEffect); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_EffectID)); } void cProtocol_1_8_0::SendResetTitle(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktTitle); Pkt.WriteVarInt32(4); // Reset title } void cProtocol_1_8_0::SendResourcePack(const AString & a_ResourcePackUrl) { cPacketizer Pkt(*this, pktResourcePack); cSha1Checksum Checksum; Checksum.Update(reinterpret_cast(a_ResourcePackUrl.c_str()), a_ResourcePackUrl.size()); Byte Digest[20]; Checksum.Finalize(Digest); AString Sha1Output; cSha1Checksum::DigestToHex(Digest, Sha1Output); Pkt.WriteString(a_ResourcePackUrl); Pkt.WriteString(Sha1Output); } void cProtocol_1_8_0::SendRespawn(eDimension a_Dimension) { cPacketizer Pkt(*this, pktRespawn); cPlayer * Player = m_Client->GetPlayer(); Pkt.WriteBEInt32(static_cast(a_Dimension)); Pkt.WriteBEUInt8(2); // TODO: Difficulty (set to Normal) Pkt.WriteBEUInt8(static_cast(Player->GetEffectiveGameMode())); Pkt.WriteString("default"); } void cProtocol_1_8_0::SendScoreboardObjective(const AString & a_Name, const AString & a_DisplayName, Byte a_Mode) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktScoreboardObjective); Pkt.WriteString(a_Name); Pkt.WriteBEUInt8(a_Mode); if ((a_Mode == 0) || (a_Mode == 2)) { Pkt.WriteString(a_DisplayName); Pkt.WriteString("integer"); } } void cProtocol_1_8_0::SendScoreUpdate(const AString & a_Objective, const AString & a_Player, cObjective::Score a_Score, Byte a_Mode) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktUpdateScore); Pkt.WriteString(a_Player); Pkt.WriteBEUInt8(a_Mode); Pkt.WriteString(a_Objective); if (a_Mode != 1) { Pkt.WriteVarInt32(static_cast(a_Score)); } } void cProtocol_1_8_0::SendDisplayObjective(const AString & a_Objective, cScoreboard::eDisplaySlot a_Display) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktDisplayObjective); Pkt.WriteBEUInt8(static_cast(a_Display)); Pkt.WriteString(a_Objective); } void cProtocol_1_8_0::SendSetSubTitle(const cCompositeChat & a_SubTitle) { SendSetRawSubTitle(a_SubTitle.CreateJsonString(false)); } void cProtocol_1_8_0::SendSetRawSubTitle(const AString & a_SubTitle) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktTitle); Pkt.WriteVarInt32(1); // Set subtitle Pkt.WriteString(a_SubTitle); } void cProtocol_1_8_0::SendSetTitle(const cCompositeChat & a_Title) { SendSetRawTitle(a_Title.CreateJsonString(false)); } void cProtocol_1_8_0::SendSetRawTitle(const AString & a_Title) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktTitle); Pkt.WriteVarInt32(0); // Set title Pkt.WriteString(a_Title); } void cProtocol_1_8_0::SendSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktSoundEffect); Pkt.WriteString(a_SoundName); Pkt.WriteBEInt32(static_cast(a_X * 8.0)); Pkt.WriteBEInt32(static_cast(a_Y * 8.0)); Pkt.WriteBEInt32(static_cast(a_Z * 8.0)); Pkt.WriteBEFloat(a_Volume); Pkt.WriteBEUInt8(static_cast(a_Pitch * 63)); } void cProtocol_1_8_0::SendSoundParticleEffect(const EffectID a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktSoundParticleEffect); Pkt.WriteBEInt32(static_cast(a_EffectID)); Pkt.WriteXYZPosition64(a_SrcX, a_SrcY, a_SrcZ); Pkt.WriteBEInt32(a_Data); Pkt.WriteBool(false); } void cProtocol_1_8_0::SendSpawnEntity(const cEntity & a_Entity) { Int32 EntityData = /* Default: velocity present flag */ 1; const auto EntityType = GetProtocolEntityType(a_Entity); if (a_Entity.IsMinecart()) { const auto & Cart = static_cast(a_Entity); EntityData = static_cast(Cart.GetPayload()); } else if (a_Entity.IsItemFrame()) { const auto & Frame = static_cast(a_Entity); EntityData = static_cast(Frame.GetProtocolFacing()); } else if (a_Entity.IsFallingBlock()) { const auto & Block = static_cast(a_Entity); EntityData = Block.GetBlockType() | (static_cast(Block.GetBlockMeta()) << 12); } else if (a_Entity.IsFloater()) { const auto & Floater = static_cast(a_Entity); EntityData = static_cast(Floater.GetOwnerID()); } else if (a_Entity.IsProjectile()) { using PType = cProjectileEntity::eKind; const auto & Projectile = static_cast(a_Entity); if (Projectile.GetProjectileKind() == PType::pkArrow) { const auto & Arrow = static_cast(Projectile); EntityData = static_cast(Arrow.GetCreatorUniqueID() + 1); } } SendEntitySpawn(a_Entity, EntityType, EntityData); } void cProtocol_1_8_0::SendSpawnMob(const cMonster & a_Mob) { ASSERT(m_State == 3); // In game mode? const auto MobType = GetProtocolMobType(a_Mob.GetMobType()); // If the type is not valid in this protocol bail out: if (MobType == 0) { return; } cPacketizer Pkt(*this, pktSpawnMob); Pkt.WriteVarInt32(a_Mob.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(MobType)); Vector3d LastSentPos = a_Mob.GetLastSentPosition(); Pkt.WriteFPInt(LastSentPos.x); Pkt.WriteFPInt(LastSentPos.y); Pkt.WriteFPInt(LastSentPos.z); Pkt.WriteByteAngle(a_Mob.GetHeadYaw()); // Doesn't seem to be used Pkt.WriteByteAngle(a_Mob.GetPitch()); Pkt.WriteByteAngle(a_Mob.GetYaw()); Pkt.WriteBEInt16(static_cast(a_Mob.GetSpeedX() * 400)); Pkt.WriteBEInt16(static_cast(a_Mob.GetSpeedY() * 400)); Pkt.WriteBEInt16(static_cast(a_Mob.GetSpeedZ() * 400)); WriteEntityMetadata(Pkt, a_Mob); Pkt.WriteBEUInt8(0x7f); // Metadata terminator } void cProtocol_1_8_0::SendStatistics(const cStatManager & a_Manager) { ASSERT(m_State == 3); // In game mode? UInt32 Size = 0; a_Manager.ForEachStatisticType([&Size](const auto & Store) { Size += static_cast(Store.size()); }); // No need to check Size != 0 // Assume that the vast majority of the time there's at least one statistic to send cPacketizer Pkt(*this, pktStatistics); Pkt.WriteVarInt32(Size); a_Manager.ForEachStatisticType([&Pkt](const cStatManager::CustomStore & Store) { for (const auto & Item : Store) { Pkt.WriteString(GetProtocolStatisticName(Item.first)); Pkt.WriteVarInt32(static_cast(Item.second)); } }); } void cProtocol_1_8_0::SendTabCompletionResults(const AStringVector & a_Results) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktTabCompletionResults); Pkt.WriteVarInt32(static_cast(a_Results.size())); for (AStringVector::const_iterator itr = a_Results.begin(), end = a_Results.end(); itr != end; ++itr) { Pkt.WriteString(*itr); } } void cProtocol_1_8_0::SendThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktSpawnGlobalEntity); Pkt.WriteVarInt32(0); // EntityID = 0, always Pkt.WriteBEUInt8(1); // Type = Thunderbolt Pkt.WriteFPInt(a_BlockX); Pkt.WriteFPInt(a_BlockY); Pkt.WriteFPInt(a_BlockZ); } void cProtocol_1_8_0::SendTitleTimes(int a_FadeInTicks, int a_DisplayTicks, int a_FadeOutTicks) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktTitle); Pkt.WriteVarInt32(2); // Set title display times Pkt.WriteBEInt32(a_FadeInTicks); Pkt.WriteBEInt32(a_DisplayTicks); Pkt.WriteBEInt32(a_FadeOutTicks); } void cProtocol_1_8_0::SendTimeUpdate(const cTickTimeLong a_WorldAge, const cTickTimeLong a_WorldDate, const bool a_DoDaylightCycle) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktTimeUpdate); Pkt.WriteBEInt64(a_WorldAge.count()); if (a_DoDaylightCycle) { Pkt.WriteBEInt64(a_WorldDate.count()); } else { // Negating the date stops time from advancing on the client // (the std::min construction is to handle the case where the date is exactly zero): Pkt.WriteBEInt64(std::min(-a_WorldDate.count(), -1LL)); } } void cProtocol_1_8_0::SendUnloadChunk(int a_ChunkX, int a_ChunkZ) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktUnloadChunk); Pkt.WriteBEInt32(a_ChunkX); Pkt.WriteBEInt32(a_ChunkZ); Pkt.WriteBool(true); Pkt.WriteBEInt16(0); // Primary bitmap Pkt.WriteVarInt32(0); // Data size } void cProtocol_1_8_0::SendUpdateBlockEntity(cBlockEntity & a_BlockEntity) { ASSERT(m_State == 3); // In game mode? Byte Action; switch (a_BlockEntity.GetBlockType()) { case E_BLOCK_ENCHANTMENT_TABLE: Action = 0; break; // The ones with a action of 0 is just a workaround to send the block entities to a client. case E_BLOCK_END_PORTAL: Action = 0; break; // Todo: 18.09.2020 - remove this when block entities are transmitted in the ChunkData packet - 12xx12 case E_BLOCK_MOB_SPAWNER: Action = 1; break; // Update mob spawner spinny mob thing case E_BLOCK_COMMAND_BLOCK: Action = 2; break; // Update command block text case E_BLOCK_BEACON: Action = 3; break; // Update beacon entity case E_BLOCK_HEAD: Action = 4; break; // Update mobhead entity case E_BLOCK_FLOWER_POT: Action = 5; break; // Update flower pot case E_BLOCK_WALL_BANNER: case E_BLOCK_STANDING_BANNER: Action = 6; break; // Update banner default: return; // Block entities change between versions } cPacketizer Pkt(*this, pktUpdateBlockEntity); Pkt.WriteXYZPosition64(a_BlockEntity.GetPosX(), a_BlockEntity.GetPosY(), a_BlockEntity.GetPosZ()); Pkt.WriteBEUInt8(Action); cFastNBTWriter Writer; WriteBlockEntity(Writer, a_BlockEntity); Writer.Finish(); Pkt.WriteBuf(Writer.GetResult()); } void cProtocol_1_8_0::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) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktUpdateSign); Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ); AString Lines[] = { a_Line1, a_Line2, a_Line3, a_Line4 }; for (size_t i = 0; i < ARRAYCOUNT(Lines); i++) { Json::Value RootValue; RootValue["text"] = Lines[i]; Pkt.WriteString(JsonUtils::WriteFastString(RootValue)); } } void cProtocol_1_8_0::SendUnlockRecipe(UInt32 a_RecipeID) { // Client doesn't support this feature return; } void cProtocol_1_8_0::SendInitRecipes(UInt32 a_RecipeID) { // Client doesn't support this feature return; } void cProtocol_1_8_0::SendWeather(eWeather a_Weather) { ASSERT(m_State == 3); // In game mode? { cPacketizer Pkt(*this, pktWeather); Pkt.WriteBEUInt8((a_Weather == wSunny) ? 1 : 2); // End rain / begin rain Pkt.WriteBEFloat(0); // Unused for weather } // TODO: Fade effect, somehow } void cProtocol_1_8_0::SendWholeInventory(const cWindow & a_Window) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktWindowItems); Pkt.WriteBEUInt8(static_cast(a_Window.GetWindowID())); Pkt.WriteBEInt16(static_cast(a_Window.GetNumSlots())); cItems Slots; a_Window.GetSlots(*(m_Client->GetPlayer()), Slots); for (cItems::const_iterator itr = Slots.begin(), end = Slots.end(); itr != end; ++itr) { WriteItem(Pkt, *itr); } // for itr - Slots[] } void cProtocol_1_8_0::SendWindowClose(const cWindow & a_Window) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktWindowClose); Pkt.WriteBEUInt8(static_cast(a_Window.GetWindowID())); } void cProtocol_1_8_0::SendWindowOpen(const cWindow & a_Window) { ASSERT(m_State == 3); // In game mode? if (a_Window.GetWindowType() < 0) { // Do not send this packet for player inventory windows return; } cPacketizer Pkt(*this, pktWindowOpen); Pkt.WriteBEUInt8(static_cast(a_Window.GetWindowID())); Pkt.WriteString(a_Window.GetWindowTypeName()); Pkt.WriteString(Printf("{\"text\":\"%s\"}", a_Window.GetWindowTitle().c_str())); switch (a_Window.GetWindowType()) { case cWindow::wtWorkbench: case cWindow::wtEnchantment: case cWindow::wtAnvil: { Pkt.WriteBEUInt8(0); break; } default: { Pkt.WriteBEUInt8(static_cast(a_Window.GetNumNonInventorySlots())); break; } } if (a_Window.GetWindowType() == cWindow::wtAnimalChest) { UInt32 HorseID = static_cast(a_Window).GetHorseID(); Pkt.WriteBEInt32(static_cast(HorseID)); } } void cProtocol_1_8_0::SendWindowProperty(const cWindow & a_Window, size_t a_Property, short a_Value) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, pktWindowProperty); Pkt.WriteBEUInt8(static_cast(a_Window.GetWindowID())); Pkt.WriteBEInt16(static_cast(a_Property)); Pkt.WriteBEInt16(a_Value); } void cProtocol_1_8_0::CompressPacket(CircularBufferCompressor & a_Packet, ContiguousByteBuffer & a_CompressedData) { const auto Uncompressed = a_Packet.GetView(); if (Uncompressed.size() < CompressionThreshold) { /* Size doesn't reach threshold, not worth compressing. --------------- Packet format ---------------- |--- Header ---------------------------------| | PacketSize: Size of all fields below | | DataSize: Zero, means below not compressed | |--- Body -----------------------------------| | a_Packet: copy of uncompressed data | ---------------------------------------------- */ const UInt32 DataSize = 0; const auto PacketSize = static_cast(cByteBuffer::GetVarIntSize(DataSize) + Uncompressed.size()); cByteBuffer LengthHeaderBuffer( cByteBuffer::GetVarIntSize(PacketSize) + cByteBuffer::GetVarIntSize(DataSize) ); LengthHeaderBuffer.WriteVarInt32(PacketSize); LengthHeaderBuffer.WriteVarInt32(DataSize); ContiguousByteBuffer LengthData; LengthHeaderBuffer.ReadAll(LengthData); a_CompressedData.reserve(LengthData.size() + Uncompressed.size()); a_CompressedData = LengthData; a_CompressedData += Uncompressed; return; } /* Definitely worth compressing. --------------- Packet format ---------------- |--- Header ---------------------------------| | PacketSize: Size of all fields below | | DataSize: Size of uncompressed a_Packet | |--- Body -----------------------------------| | CompressedData: compressed a_Packet | ---------------------------------------------- */ const auto CompressedData = a_Packet.Compress(); const auto Compressed = CompressedData.GetView(); const UInt32 DataSize = static_cast(Uncompressed.size()); const auto PacketSize = static_cast(cByteBuffer::GetVarIntSize(DataSize) + Compressed.size()); cByteBuffer LengthHeaderBuffer( cByteBuffer::GetVarIntSize(PacketSize) + cByteBuffer::GetVarIntSize(DataSize) ); LengthHeaderBuffer.WriteVarInt32(PacketSize); LengthHeaderBuffer.WriteVarInt32(DataSize); ContiguousByteBuffer LengthData; LengthHeaderBuffer.ReadAll(LengthData); a_CompressedData.reserve(LengthData.size() + Compressed.size()); a_CompressedData = LengthData; a_CompressedData += Compressed; } eBlockFace cProtocol_1_8_0::FaceIntToBlockFace(const Int32 a_BlockFace) { // Normalize the blockface values returned from the protocol // Anything known gets mapped 1:1, everything else returns BLOCK_FACE_NONE switch (a_BlockFace) { case BLOCK_FACE_XM: return BLOCK_FACE_XM; case BLOCK_FACE_XP: return BLOCK_FACE_XP; case BLOCK_FACE_YM: return BLOCK_FACE_YM; case BLOCK_FACE_YP: return BLOCK_FACE_YP; case BLOCK_FACE_ZM: return BLOCK_FACE_ZM; case BLOCK_FACE_ZP: return BLOCK_FACE_ZP; default: return BLOCK_FACE_NONE; } } UInt32 cProtocol_1_8_0::GetPacketID(ePacketType a_PacketType) const { switch (a_PacketType) { case pktAttachEntity: return 0x1b; case pktBlockAction: return 0x24; case pktBlockBreakAnim: return 0x25; case pktBlockChange: return 0x23; case pktBlockChanges: return 0x22; case pktCameraSetTo: return 0x43; case pktChatRaw: return 0x02; case pktCollectEntity: return 0x0d; case pktDestroyEntity: return 0x13; case pktDifficulty: return 0x41; case pktDisconnectDuringGame: return 0x40; case pktDisconnectDuringLogin: return 0x00; case pktDisplayObjective: return 0x3d; case pktEditSign: return 0x36; case pktEncryptionRequest: return 0x01; case pktEntityAnimation: return 0x0b; case pktEntityEffect: return 0x1d; case pktEntityEquipment: return 0x04; case pktEntityHeadLook: return 0x19; case pktEntityLook: return 0x16; case pktEntityMeta: return 0x1c; case pktEntityProperties: return 0x20; case pktEntityRelMove: return 0x15; case pktEntityRelMoveLook: return 0x17; case pktEntityStatus: return 0x1a; case pktEntityVelocity: return 0x12; case pktExperience: return 0x1f; case pktExplosion: return 0x27; case pktGameMode: return 0x2b; case pktHeldItemChange: return 0x09; case pktInventorySlot: return 0x2f; case pktJoinGame: return 0x01; case pktKeepAlive: return 0x00; case pktLeashEntity: return 0x1b; case pktLoginSuccess: return 0x02; case pktMapData: return 0x34; case pktParticleEffect: return 0x2a; case pktPingResponse: return 0x01; case pktPlayerAbilities: return 0x39; case pktPlayerList: return 0x38; case pktPlayerListHeaderFooter: return 0x47; case pktPlayerMoveLook: return 0x08; case pktPluginMessage: return 0x3f; case pktRemoveEntityEffect: return 0x1e; case pktResourcePack: return 0x48; case pktRespawn: return 0x07; case pktScoreboardObjective: return 0x3b; case pktSoundEffect: return 0x29; case pktSoundParticleEffect: return 0x28; case pktSpawnExperienceOrb: return 0x11; case pktSpawnGlobalEntity: return 0x2c; case pktSpawnMob: return 0x0f; case pktSpawnObject: return 0x0e; case pktSpawnOtherPlayer: return 0x0c; case pktSpawnPainting: return 0x10; case pktSpawnPosition: return 0x05; case pktStartCompression: return 0x03; case pktStatistics: return 0x37; case pktStatusResponse: return 0x00; case pktTabCompletionResults: return 0x3a; case pktTeleportEntity: return 0x18; case pktTimeUpdate: return 0x03; case pktTitle: return 0x45; case pktUnloadChunk: return 0x21; case pktUpdateBlockEntity: return 0x35; case pktUpdateHealth: return 0x06; case pktUpdateScore: return 0x3c; case pktUpdateSign: return 0x33; case pktUseBed: return 0x0a; case pktWeather: return 0x2b; case pktWindowClose: return 0x2e; case pktWindowItems: return 0x30; case pktWindowOpen: return 0x2d; case pktWindowProperty: return 0x31; default: { LOG("Unhandled outgoing packet type: %s (0x%02x)", cPacketizer::PacketTypeToStr(a_PacketType), a_PacketType); ASSERT(!"Unhandled outgoing packet type"); return 0; } } } unsigned char cProtocol_1_8_0::GetProtocolEntityAnimation(const EntityAnimation a_Animation) const { switch (a_Animation) { case EntityAnimation::EntityGetsCriticalHit: return 4; case EntityAnimation::EntityGetsMagicalCriticalHit: return 5; case EntityAnimation::PlayerLeavesBed: return 2; case EntityAnimation::PlayerMainHandSwings: return 0; case EntityAnimation::PlayerOffHandSwings: return 0; default: return static_cast(-1); } } signed char cProtocol_1_8_0::GetProtocolEntityStatus(const EntityAnimation a_Animation) const { switch (a_Animation) { case EntityAnimation::AnimalFallsInLove: return 18; case EntityAnimation::FireworkRocketExplodes: return 17; case EntityAnimation::GuardianAttacks: return 21; case EntityAnimation::HorseTamingFails: return 6; case EntityAnimation::HorseTamingSucceeds: return 7; case EntityAnimation::IronGolemAttacks: return 4; case EntityAnimation::IronGolemOffersGift: return 11; case EntityAnimation::MinecartSpawnerDelayResets: return 1; case EntityAnimation::MinecartTNTIgnites: return 10; case EntityAnimation::MobSpawns: return 20; case EntityAnimation::OcelotTrusts: return 6; case EntityAnimation::OcelotDistrusts: return 7; case EntityAnimation::PawnBerryBushPricks: return 2; case EntityAnimation::PawnBurns: return 2; case EntityAnimation::PawnDies: return 3; case EntityAnimation::PawnDrowns: return 2; case EntityAnimation::PawnHurts: return 2; case EntityAnimation::PawnThornsPricks: return 2; case EntityAnimation::PlayerFinishesEating: return 9; case EntityAnimation::RabbitJumps: return 1; case EntityAnimation::SheepEatsGrass: return 10; case EntityAnimation::VillagerKisses: return 12; case EntityAnimation::VillagerShowsAnger: return 13; case EntityAnimation::VillagerShowsHappiness: return 14; case EntityAnimation::WitchMagicks: return 15; case EntityAnimation::WolfShakesWater: return 8; case EntityAnimation::WolfTamingFails: return 6; case EntityAnimation::WolfTamingSucceeds: return 7; case EntityAnimation::ZombieVillagerCureFinishes: return 16; default: return -1; } } UInt32 cProtocol_1_8_0::GetProtocolMobType(const eMonsterType a_MobType) const { switch (a_MobType) { // Map invalid type to Giant for easy debugging (if this ever spawns, something has gone very wrong) case mtInvalidType: return 53; case mtBat: return 65; case mtBlaze: return 61; case mtCaveSpider: return 59; case mtChicken: return 93; case mtCow: return 92; case mtCreeper: return 50; case mtEnderDragon: return 63; case mtEnderman: return 58; case mtEndermite: return 67; case mtGhast: return 56; case mtGiant: return 53; case mtGuardian: return 68; case mtHorse: return 100; case mtIronGolem: return 99; case mtMagmaCube: return 62; case mtMooshroom: return 96; case mtOcelot: return 98; case mtPig: return 90; case mtRabbit: return 101; case mtSheep: return 91; case mtSilverfish: return 60; case mtSkeleton: return 51; case mtSlime: return 55; case mtSnowGolem: return 97; case mtSpider: return 52; case mtSquid: return 94; case mtVillager: return 120; case mtWitch: return 66; case mtWither: return 64; case mtWitherSkeleton: return 51; case mtWolf: return 95; case mtZombie: return 54; case mtZombiePigman: return 57; case mtZombieVillager: return 27; // Mobs that get replaced with another because they were added later case mtCat: return GetProtocolMobType(mtOcelot); case mtDonkey: return GetProtocolMobType(mtHorse); case mtMule: return GetProtocolMobType(mtHorse); case mtSkeletonHorse: return GetProtocolMobType(mtHorse); case mtZombieHorse: return GetProtocolMobType(mtHorse); case mtStray: return GetProtocolMobType(mtSkeleton); case mtHusk: return GetProtocolMobType(mtZombie); default: return 0; } } cProtocol::Version cProtocol_1_8_0::GetProtocolVersion() const { return Version::v1_8_0; } bool cProtocol_1_8_0::HandlePacket(cByteBuffer & a_ByteBuffer, UInt32 a_PacketType) { switch (m_State) { case State::Status: { switch (a_PacketType) { case 0x00: HandlePacketStatusRequest(a_ByteBuffer); return true; case 0x01: HandlePacketStatusPing (a_ByteBuffer); return true; } break; } case State::Login: { switch (a_PacketType) { case 0x00: HandlePacketLoginStart (a_ByteBuffer); return true; case 0x01: HandlePacketLoginEncryptionResponse(a_ByteBuffer); return true; } break; } case State::Game: { switch (a_PacketType) { case 0x00: HandlePacketKeepAlive (a_ByteBuffer); return true; case 0x01: HandlePacketChatMessage (a_ByteBuffer); return true; case 0x02: HandlePacketUseEntity (a_ByteBuffer); return true; case 0x03: HandlePacketPlayer (a_ByteBuffer); return true; case 0x04: HandlePacketPlayerPos (a_ByteBuffer); return true; case 0x05: HandlePacketPlayerLook (a_ByteBuffer); return true; case 0x06: HandlePacketPlayerPosLook (a_ByteBuffer); return true; case 0x07: HandlePacketBlockDig (a_ByteBuffer); return true; case 0x08: HandlePacketBlockPlace (a_ByteBuffer); return true; case 0x09: HandlePacketSlotSelect (a_ByteBuffer); return true; case 0x0a: HandlePacketAnimation (a_ByteBuffer); return true; case 0x0b: HandlePacketEntityAction (a_ByteBuffer); return true; case 0x0c: HandlePacketSteerVehicle (a_ByteBuffer); return true; case 0x0d: HandlePacketWindowClose (a_ByteBuffer); return true; case 0x0e: HandlePacketWindowClick (a_ByteBuffer); return true; case 0x0f: // Confirm transaction - not used in MCS case 0x10: HandlePacketCreativeInventoryAction(a_ByteBuffer); return true; case 0x11: HandlePacketEnchantItem (a_ByteBuffer); return true; case 0x12: HandlePacketUpdateSign (a_ByteBuffer); return true; case 0x13: HandlePacketPlayerAbilities (a_ByteBuffer); return true; case 0x14: HandlePacketTabComplete (a_ByteBuffer); return true; case 0x15: HandlePacketClientSettings (a_ByteBuffer); return true; case 0x16: HandlePacketClientStatus (a_ByteBuffer); return true; case 0x17: HandlePacketPluginMessage (a_ByteBuffer); return true; case 0x18: HandlePacketSpectate (a_ByteBuffer); return true; case 0x19: HandlePacketResourcePackStatus (a_ByteBuffer); return true; } break; } } // switch (m_State) // Unknown packet type, report to the ClientHandle: m_Client->PacketUnknown(a_PacketType); return false; } void cProtocol_1_8_0::HandlePacketStatusPing(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEInt64, Int64, Timestamp); cPacketizer Pkt(*this, pktPingResponse); Pkt.WriteBEInt64(Timestamp); } void cProtocol_1_8_0::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer) { cServer * Server = cRoot::Get()->GetServer(); AString ServerDescription = Server->GetDescription(); auto NumPlayers = static_cast(Server->GetNumPlayers()); auto MaxPlayers = static_cast(Server->GetMaxPlayers()); AString Favicon = Server->GetFaviconData(); cRoot::Get()->GetPluginManager()->CallHookServerPing(*m_Client, ServerDescription, NumPlayers, MaxPlayers, Favicon); // Version: Json::Value Version; const auto ProtocolVersion = GetProtocolVersion(); Version["name"] = "Cuberite " + cMultiVersionProtocol::GetVersionTextFromInt(ProtocolVersion); Version["protocol"] = static_cast>(ProtocolVersion); // Players: Json::Value Players; Players["online"] = NumPlayers; Players["max"] = MaxPlayers; // TODO: Add "sample" // Description: Json::Value Description; Description["text"] = ServerDescription.c_str(); // Create the response: Json::Value ResponseValue; ResponseValue["version"] = Version; ResponseValue["players"] = Players; ResponseValue["description"] = Description; m_Client->ForgeAugmentServerListPing(ResponseValue); if (!Favicon.empty()) { ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str()); } // Serialize the response into a packet: cPacketizer Pkt(*this, pktStatusResponse); Pkt.WriteString(JsonUtils::WriteFastString(ResponseValue)); } void cProtocol_1_8_0::HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffer) { UInt32 EncKeyLength, EncNonceLength; if (!a_ByteBuffer.ReadVarInt(EncKeyLength)) { return; } ContiguousByteBuffer EncKey; if (!a_ByteBuffer.ReadSome(EncKey, EncKeyLength)) { return; } if (!a_ByteBuffer.ReadVarInt(EncNonceLength)) { return; } ContiguousByteBuffer EncNonce; if (!a_ByteBuffer.ReadSome(EncNonce, EncNonceLength)) { return; } if ((EncKeyLength > MAX_ENC_LEN) || (EncNonceLength > MAX_ENC_LEN)) { LOGD("Too long encryption"); m_Client->Kick("Hacked client"); return; } // Decrypt EncNonce using privkey cRsaPrivateKey & rsaDecryptor = cRoot::Get()->GetServer()->GetPrivateKey(); UInt32 DecryptedNonce[MAX_ENC_LEN / sizeof(Int32)]; int res = rsaDecryptor.Decrypt(EncNonce, reinterpret_cast(DecryptedNonce), sizeof(DecryptedNonce)); if (res != 4) { LOGD("Bad nonce length: got %d, exp %d", res, 4); m_Client->Kick("Hacked client"); return; } if (ntohl(DecryptedNonce[0]) != static_cast(reinterpret_cast(this))) { LOGD("Bad nonce value"); m_Client->Kick("Hacked client"); return; } // Decrypt the symmetric encryption key using privkey: Byte DecryptedKey[MAX_ENC_LEN]; res = rsaDecryptor.Decrypt(EncKey, DecryptedKey, sizeof(DecryptedKey)); if (res != 16) { LOGD("Bad key length"); m_Client->Kick("Hacked client"); return; } StartEncryption(DecryptedKey); m_Client->HandleLogin(); } void cProtocol_1_8_0::HandlePacketLoginStart(cByteBuffer & a_ByteBuffer) { AString Username; if (!a_ByteBuffer.ReadVarUTF8String(Username)) { m_Client->Kick("Bad username"); return; } if (!m_Client->HandleHandshake(Username)) { // The client is not welcome here, they have been sent a Kick packet already return; } m_Client->SetUsername(std::move(Username)); // If auth is required, then send the encryption request: if (const auto Server = cRoot::Get()->GetServer(); Server->ShouldAuthenticate()) { cPacketizer Pkt(*this, pktEncryptionRequest); Pkt.WriteString(Server->GetServerID()); const auto PubKeyDer = Server->GetPublicKeyDER(); Pkt.WriteVarInt32(static_cast(PubKeyDer.size())); Pkt.WriteBuf(PubKeyDer); Pkt.WriteVarInt32(4); Pkt.WriteBEInt32(static_cast(reinterpret_cast(this))); // Using 'this' as the cryptographic nonce, so that we don't have to generate one each time :) return; } m_Client->HandleLogin(); } void cProtocol_1_8_0::HandlePacketAnimation(cByteBuffer & a_ByteBuffer) { m_Client->HandleAnimation(true); // Packet exists solely for arm-swing notification (main hand). } void cProtocol_1_8_0::HandlePacketBlockDig(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Status); int BlockX, BlockY, BlockZ; if (!a_ByteBuffer.ReadXYZPosition64(BlockX, BlockY, BlockZ)) { return; } HANDLE_READ(a_ByteBuffer, ReadBEInt8, Int8, Face); m_Client->HandleLeftClick(BlockX, BlockY, BlockZ, FaceIntToBlockFace(Face), Status); } void cProtocol_1_8_0::HandlePacketBlockPlace(cByteBuffer & a_ByteBuffer) { int BlockX, BlockY, BlockZ; if (!a_ByteBuffer.ReadXYZPosition64(BlockX, BlockY, BlockZ)) { return; } HANDLE_READ(a_ByteBuffer, ReadBEInt8, Int8, Face); cItem Item; // Ignored ReadItem(a_ByteBuffer, Item, 3); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorX); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorY); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorZ); eBlockFace blockFace = FaceIntToBlockFace(Face); if (blockFace == eBlockFace::BLOCK_FACE_NONE) { m_Client->HandleUseItem(true); } else { m_Client->HandleRightClick(BlockX, BlockY, BlockZ, blockFace, CursorX, CursorY, CursorZ, true); } } void cProtocol_1_8_0::HandlePacketChatMessage(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Message); m_Client->HandleChat(Message); } void cProtocol_1_8_0::HandlePacketClientSettings(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Locale); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, ViewDistance); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, ChatFlags); HANDLE_READ(a_ByteBuffer, ReadBool, bool, ChatColors); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, SkinParts); m_Client->SetLocale(Locale); m_Client->SetViewDistance(ViewDistance); m_Client->GetPlayer()->SetSkinParts(SkinParts); // TODO: Handle chat flags and chat colors } void cProtocol_1_8_0::HandlePacketClientStatus(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, ActionID); switch (ActionID) { case 0: { // Respawn m_Client->HandleRespawn(); break; } case 1: { // Request stats const cStatManager & Manager = m_Client->GetPlayer()->GetStatManager(); SendStatistics(Manager); break; } case 2: { // Open Inventory achievement m_Client->GetPlayer()->AwardAchievement(Statistic::AchOpenInventory); break; } } } void cProtocol_1_8_0::HandlePacketCreativeInventoryAction(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, SlotNum); cItem Item; if (!ReadItem(a_ByteBuffer, Item)) { return; } m_Client->HandleCreativeInventory(SlotNum, Item, (SlotNum == -1) ? caLeftClickOutside : caLeftClick); } void cProtocol_1_8_0::HandlePacketEntityAction(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, PlayerID); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Action); HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, JumpBoost); if (PlayerID != m_Client->GetPlayer()->GetUniqueID()) { m_Client->Kick("Mind your own business! Hacked client?"); return; } switch (Action) { case 0: return m_Client->HandleCrouch(true); case 1: return m_Client->HandleCrouch(false); case 2: return m_Client->HandleLeaveBed(); case 3: return m_Client->HandleSprint(true); case 4: return m_Client->HandleSprint(false); case 6: return m_Client->HandleOpenHorseInventory(); } } void cProtocol_1_8_0::HandlePacketKeepAlive(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, KeepAliveID); m_Client->HandleKeepAlive(KeepAliveID); } void cProtocol_1_8_0::HandlePacketPlayer(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround); // TODO: m_Client->HandlePlayerOnGround(IsOnGround); } void cProtocol_1_8_0::HandlePacketPlayerAbilities(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Flags); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, FlyingSpeed); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, WalkingSpeed); // COnvert the bitfield into individual boolean flags: bool IsFlying = false; if ((Flags & 2) != 0) { IsFlying = true; } m_Client->HandlePlayerAbilities(IsFlying, FlyingSpeed, WalkingSpeed); } void cProtocol_1_8_0::HandlePacketPlayerLook(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Yaw); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Pitch); HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround); m_Client->HandlePlayerLook(Yaw, Pitch, IsOnGround); } void cProtocol_1_8_0::HandlePacketPlayerPos(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosX); HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosY); HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosZ); HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround); m_Client->HandlePlayerMove(PosX, PosY, PosZ, IsOnGround); } void cProtocol_1_8_0::HandlePacketPlayerPosLook(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosX); HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosY); HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosZ); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Yaw); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Pitch); HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround); m_Client->HandlePlayerMoveLook(PosX, PosY, PosZ, Yaw, Pitch, IsOnGround); } void cProtocol_1_8_0::HandlePacketPluginMessage(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Channel); // If the plugin channel is recognized vanilla, handle it directly: if (Channel.substr(0, 3) == "MC|") { HandleVanillaPluginMessage(a_ByteBuffer, Channel); // Skip any unread data (vanilla sometimes sends garbage at the end of a packet; #1692): if (a_ByteBuffer.GetReadableSpace() > 0) { LOGD("Protocol 1.8: Skipping garbage data at the end of a vanilla PluginMessage packet, %u bytes", static_cast(a_ByteBuffer.GetReadableSpace()) ); a_ByteBuffer.SkipRead(a_ByteBuffer.GetReadableSpace()); } return; } // Read the plugin message and relay to clienthandle: ContiguousByteBuffer Data; VERIFY(a_ByteBuffer.ReadSome(Data, a_ByteBuffer.GetReadableSpace())); // Always succeeds m_Client->HandlePluginMessage(Channel, Data); } void cProtocol_1_8_0::HandlePacketResourcePackStatus(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Hash); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Status); } void cProtocol_1_8_0::HandlePacketSlotSelect(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, SlotNum); m_Client->HandleSlotSelected(SlotNum); } void cProtocol_1_8_0::HandlePacketSpectate(cByteBuffer &a_ByteBuffer) { cUUID playerUUID; if (!a_ByteBuffer.ReadUUID(playerUUID)) { return; } m_Client->HandleSpectate(playerUUID); } void cProtocol_1_8_0::HandlePacketSteerVehicle(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Sideways); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Forward); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Flags); if ((Flags & 0x2) != 0) { m_Client->HandleUnmount(); } else if ((Flags & 0x1) != 0) { // jump } else { m_Client->HandleSteerVehicle(Forward, Sideways); } } void cProtocol_1_8_0::HandlePacketTabComplete(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Text); HANDLE_READ(a_ByteBuffer, ReadBool, bool, HasPosition); if (HasPosition) { HANDLE_READ(a_ByteBuffer, ReadBEInt64, Int64, Position); } m_Client->HandleTabCompletion(Text); } void cProtocol_1_8_0::HandlePacketUpdateSign(cByteBuffer & a_ByteBuffer) { int BlockX, BlockY, BlockZ; if (!a_ByteBuffer.ReadXYZPosition64(BlockX, BlockY, BlockZ)) { return; } AString Lines[4]; Json::Value root; for (int i = 0; i < 4; i++) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Line); if (JsonUtils::ParseString(Line, root) && root.isString()) { Lines[i] = root.asString(); } } m_Client->HandleUpdateSign(BlockX, BlockY, BlockZ, Lines[0], Lines[1], Lines[2], Lines[3]); } void cProtocol_1_8_0::HandlePacketUseEntity(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, EntityID); HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, Type); switch (Type) { case 0: { m_Client->HandleUseEntity(EntityID, false); break; } case 1: { m_Client->HandleUseEntity(EntityID, true); break; } case 2: { HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, TargetX); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, TargetY); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, TargetZ); // TODO: Do anything break; } default: { ASSERT(!"Unhandled use entity type!"); return; } } } void cProtocol_1_8_0::HandlePacketEnchantItem(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, WindowID); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Enchantment); m_Client->HandleEnchantItem(WindowID, Enchantment); } void cProtocol_1_8_0::HandlePacketWindowClick(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, WindowID); HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, SlotNum); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Button); HANDLE_READ(a_ByteBuffer, ReadBEUInt16, UInt16, TransactionID); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Mode); cItem Item; ReadItem(a_ByteBuffer, Item); /** The slot number that the client uses to indicate "outside the window". */ static const Int16 SLOT_NUM_OUTSIDE = -999; // Convert Button, Mode, SlotNum and HeldItem into eClickAction: eClickAction Action; switch ((Mode << 8) | Button) { case 0x0000: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caLeftClick : caLeftClickOutside; break; case 0x0001: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caRightClick : caRightClickOutside; break; case 0x0100: Action = caShiftLeftClick; break; case 0x0101: Action = caShiftRightClick; break; case 0x0200: Action = caNumber1; break; case 0x0201: Action = caNumber2; break; case 0x0202: Action = caNumber3; break; case 0x0203: Action = caNumber4; break; case 0x0204: Action = caNumber5; break; case 0x0205: Action = caNumber6; break; case 0x0206: Action = caNumber7; break; case 0x0207: Action = caNumber8; break; case 0x0208: Action = caNumber9; break; case 0x0302: Action = caMiddleClick; break; case 0x0400: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caLeftClickOutsideHoldNothing : caDropKey; break; case 0x0401: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caRightClickOutsideHoldNothing : caCtrlDropKey; break; case 0x0500: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caLeftPaintBegin : caUnknown; break; case 0x0501: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caLeftPaintProgress : caUnknown; break; case 0x0502: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caLeftPaintEnd : caUnknown; break; case 0x0504: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caRightPaintBegin : caUnknown; break; case 0x0505: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caRightPaintProgress : caUnknown; break; case 0x0506: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caRightPaintEnd : caUnknown; break; case 0x0508: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caMiddlePaintBegin : caUnknown; break; case 0x0509: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caMiddlePaintProgress : caUnknown; break; case 0x050a: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caMiddlePaintEnd : caUnknown; break; case 0x0600: Action = caDblClick; break; default: { LOGWARNING("Unhandled window click mode / button combination: %d (0x%x)", (Mode << 8) | Button, (Mode << 8) | Button); Action = caUnknown; break; } } m_Client->HandleWindowClick(WindowID, SlotNum, Action, Item); } void cProtocol_1_8_0::HandlePacketWindowClose(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, WindowID); m_Client->HandleWindowClose(WindowID); } void cProtocol_1_8_0::HandleVanillaPluginMessage(cByteBuffer & a_ByteBuffer, const AString & a_Channel) { if (a_Channel == "MC|AdvCdm") { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Mode); switch (Mode) { case 0x00: { HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, BlockX); HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, BlockY); HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, BlockZ); HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Command); m_Client->HandleCommandBlockBlockChange(BlockX, BlockY, BlockZ, Command); break; } default: { m_Client->SendChat(Printf("Failure setting command block command; unhandled mode %u (0x%02x)", Mode, Mode), mtFailure); LOG("Unhandled MC|AdvCdm packet mode."); return; } } // switch (Mode) return; } else if (a_Channel == "MC|Brand") { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Brand); m_Client->SetClientBrand(Brand); // Send back our brand, including the length: m_Client->SendPluginMessage("MC|Brand", "\x08""Cuberite"); return; } else if (a_Channel == "MC|Beacon") { HANDLE_READ(a_ByteBuffer, ReadBEUInt32, UInt32, Effect1); HANDLE_READ(a_ByteBuffer, ReadBEUInt32, UInt32, Effect2); m_Client->HandleBeaconSelection(Effect1, Effect2); return; } else if (a_Channel == "MC|ItemName") { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, ItemName); m_Client->HandleAnvilItemName(ItemName); return; } else if (a_Channel == "MC|TrSel") { HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, SlotNum); m_Client->HandleNPCTrade(SlotNum); return; } LOG("Unhandled vanilla plugin channel: \"%s\".", a_Channel.c_str()); // Read the payload and send it through to the clienthandle: ContiguousByteBuffer Message; VERIFY(a_ByteBuffer.ReadSome(Message, a_ByteBuffer.GetReadableSpace() - 1)); m_Client->HandlePluginMessage(a_Channel, Message); } void cProtocol_1_8_0::ParseItemMetadata(cItem & a_Item, const ContiguousByteBufferView a_Metadata) const { // Parse into NBT: cParsedNBT NBT(a_Metadata); if (!NBT.IsValid()) { AString HexDump; CreateHexDump(HexDump, a_Metadata.data(), std::max(a_Metadata.size(), 1024), 16); LOGWARNING("Cannot parse NBT item metadata: %s at (%zu / %zu bytes)\n%s", NBT.GetErrorCode().message().c_str(), NBT.GetErrorPos(), a_Metadata.size(), HexDump.c_str() ); return; } // Load enchantments and custom display names from the NBT data: for (int tag = NBT.GetFirstChild(NBT.GetRoot()); tag >= 0; tag = NBT.GetNextSibling(tag)) { AString TagName = NBT.GetName(tag); switch (NBT.GetType(tag)) { case TAG_List: { if ((TagName == "ench") || (TagName == "StoredEnchantments")) // Enchantments tags { EnchantmentSerializer::ParseFromNBT(a_Item.m_Enchantments, NBT, tag); } break; } case TAG_Compound: { if (TagName == "display") // Custom name and lore tag { for (int displaytag = NBT.GetFirstChild(tag); displaytag >= 0; displaytag = NBT.GetNextSibling(displaytag)) { if ((NBT.GetType(displaytag) == TAG_String) && (NBT.GetName(displaytag) == "Name")) // Custon name tag { a_Item.m_CustomName = NBT.GetString(displaytag); } else if ((NBT.GetType(displaytag) == TAG_List) && (NBT.GetName(displaytag) == "Lore")) // Lore tag { for (int loretag = NBT.GetFirstChild(displaytag); loretag >= 0; loretag = NBT.GetNextSibling(loretag)) // Loop through array of strings { a_Item.m_LoreTable.push_back(NBT.GetString(loretag)); } } else if ((NBT.GetType(displaytag) == TAG_Int) && (NBT.GetName(displaytag) == "color")) { a_Item.m_ItemColor.m_Color = static_cast(NBT.GetInt(displaytag)); } } } else if ((TagName == "Fireworks") || (TagName == "Explosion")) { cFireworkItem::ParseFromNBT(a_Item.m_FireworkItem, NBT, tag, static_cast(a_Item.m_ItemType)); } break; } case TAG_Int: { if (TagName == "RepairCost") { a_Item.m_RepairCost = NBT.GetInt(tag); } } default: LOGD("Unimplemented NBT data when parsing!"); break; } } } bool cProtocol_1_8_0::ReadItem(cByteBuffer & a_ByteBuffer, cItem & a_Item, size_t a_KeepRemainingBytes) const { HANDLE_PACKET_READ(a_ByteBuffer, ReadBEInt16, Int16, ItemType); if (ItemType == -1) { // The item is empty, no more data follows a_Item.Empty(); return true; } a_Item.m_ItemType = ItemType; HANDLE_PACKET_READ(a_ByteBuffer, ReadBEInt8, Int8, ItemCount); HANDLE_PACKET_READ(a_ByteBuffer, ReadBEInt16, Int16, ItemDamage); a_Item.m_ItemCount = ItemCount; a_Item.m_ItemDamage = ItemDamage; if (ItemCount <= 0) { a_Item.Empty(); } ContiguousByteBuffer Metadata; if (!a_ByteBuffer.ReadSome(Metadata, a_ByteBuffer.GetReadableSpace() - a_KeepRemainingBytes) || Metadata.empty() || (Metadata[0] == std::byte(0))) { // No metadata return true; } ParseItemMetadata(a_Item, Metadata); return true; } void cProtocol_1_8_0::SendEntitySpawn(const cEntity & a_Entity, const UInt8 a_ObjectType, const Int32 a_ObjectData) { ASSERT(m_State == 3); // In game mode? { cPacketizer Pkt(*this, pktSpawnObject); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt8(a_ObjectType); Pkt.WriteFPInt(a_Entity.GetPosX()); // Position appears to be ignored... Pkt.WriteFPInt(a_Entity.GetPosY()); Pkt.WriteFPInt(a_Entity.GetPosY()); Pkt.WriteByteAngle(a_Entity.GetPitch()); Pkt.WriteByteAngle(a_Entity.GetYaw()); Pkt.WriteBEInt32(a_ObjectData); if (a_ObjectData != 0) { Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedX() * 400)); Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedY() * 400)); Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedZ() * 400)); } } // Otherwise 1.8 clients don't show the entity SendEntityTeleport(a_Entity); } void cProtocol_1_8_0::SendData(ContiguousByteBufferView a_Data) { if (m_IsEncrypted) { std::byte Encrypted[8 KiB]; // Larger buffer, we may be sending lots of data (chunks) while (a_Data.size() > 0) { const auto NumBytes = (a_Data.size() > sizeof(Encrypted)) ? sizeof(Encrypted) : a_Data.size(); m_Encryptor.ProcessData(Encrypted, a_Data.data(), NumBytes); m_Client->SendData({ Encrypted, NumBytes }); a_Data = a_Data.substr(NumBytes); } } else { m_Client->SendData(a_Data); } } void cProtocol_1_8_0::SendPacket(cPacketizer & a_Pkt) { ASSERT(m_OutPacketBuffer.GetReadableSpace() == m_OutPacketBuffer.GetUsedSpace()); m_Compressor.ReadFrom(m_OutPacketBuffer); m_OutPacketBuffer.CommitRead(); const auto PacketData = m_Compressor.GetView(); if (m_State == 3) { ContiguousByteBuffer CompressedPacket; // Compress the packet payload: cProtocol_1_8_0::CompressPacket(m_Compressor, CompressedPacket); // Send the packet's payload compressed: SendData(CompressedPacket); } else { // Compression doesn't apply to this state, send raw data: m_OutPacketLenBuffer.WriteVarInt32(static_cast(PacketData.size())); ContiguousByteBuffer LengthData; m_OutPacketLenBuffer.ReadAll(LengthData); m_OutPacketLenBuffer.CommitRead(); SendData(LengthData); // Send the packet's payload directly: SendData(PacketData); } // Log the comm into logfile: if (g_ShouldLogCommOut && m_CommLogFile.IsOpen()) { AString Hex; ASSERT(PacketData.size() > 0); CreateHexDump(Hex, PacketData.data(), PacketData.size(), 16); m_CommLogFile.Printf("Outgoing packet: type %s (translated to 0x%02x), length %u (0x%04x), state %d. Payload (incl. type):\n%s\n", cPacketizer::PacketTypeToStr(a_Pkt.GetPacketType()), GetPacketID(a_Pkt.GetPacketType()), PacketData.size(), PacketData.size(), m_State, Hex ); /* // Useful for debugging a new protocol: LOGD("Outgoing packet: type %s (translated to 0x%02x), length %u (0x%04x), state %d. Payload (incl. type):\n%s\n", cPacketizer::PacketTypeToStr(a_Pkt.GetPacketType()), GetPacketID(a_Pkt.GetPacketType()), PacketLen, PacketLen, m_State, Hex ); //*/ } /* // Useful for debugging a new protocol: std::this_thread::sleep_for(std::chrono::milliseconds(100)); */ } void cProtocol_1_8_0::WriteBlockEntity(cFastNBTWriter & a_Writer, const cBlockEntity & a_BlockEntity) const { a_Writer.AddInt("x", a_BlockEntity.GetPosX()); a_Writer.AddInt("y", a_BlockEntity.GetPosY()); a_Writer.AddInt("z", a_BlockEntity.GetPosZ()); switch (a_BlockEntity.GetBlockType()) { case E_BLOCK_WALL_BANNER: case E_BLOCK_STANDING_BANNER: { auto & BannerEntity = static_cast(a_BlockEntity); a_Writer.AddInt("Base", static_cast(BannerEntity.GetBaseColor())); break; } case E_BLOCK_BEACON: { auto & BeaconEntity = static_cast(a_BlockEntity); a_Writer.AddInt("Primary", BeaconEntity.GetPrimaryEffect()); a_Writer.AddInt("Secondary", BeaconEntity.GetSecondaryEffect()); a_Writer.AddInt("Levels", BeaconEntity.GetBeaconLevel()); break; } case E_BLOCK_COMMAND_BLOCK: { auto & CommandBlockEntity = static_cast(a_BlockEntity); a_Writer.AddByte("TrackOutput", 1); // Neither I nor the MC wiki has any idea about this a_Writer.AddInt("SuccessCount", CommandBlockEntity.GetResult()); a_Writer.AddString("Command", CommandBlockEntity.GetCommand()); // You can set custom names for windows in Vanilla // For a command block, this would be the 'name' prepended to anything it outputs into global chat // MCS doesn't have this, so just leave it @ '@'. (geddit?) a_Writer.AddString("CustomName", "@"); if (!CommandBlockEntity.GetLastOutput().empty()) { a_Writer.AddString("LastOutput", Printf("{\"text\":\"%s\"}", CommandBlockEntity.GetLastOutput().c_str())); } break; } case E_BLOCK_ENCHANTMENT_TABLE: { auto & EnchantingTableEntity = static_cast(a_BlockEntity); if (!EnchantingTableEntity.GetCustomName().empty()) { a_Writer.AddString("CustomName", EnchantingTableEntity.GetCustomName()); } break; } case E_BLOCK_END_PORTAL: { // Nothing! break; } case E_BLOCK_HEAD: { auto & MobHeadEntity = static_cast(a_BlockEntity); a_Writer.AddByte("SkullType", MobHeadEntity.GetType() & 0xFF); a_Writer.AddByte("Rot", MobHeadEntity.GetRotation() & 0xFF); // The new Block Entity format for a Mob Head. See: https://minecraft.gamepedia.com/Head#Block_entity a_Writer.BeginCompound("Owner"); a_Writer.AddString("Id", MobHeadEntity.GetOwnerUUID().ToShortString()); a_Writer.AddString("Name", MobHeadEntity.GetOwnerName()); a_Writer.BeginCompound("Properties"); a_Writer.BeginList("textures", TAG_Compound); a_Writer.BeginCompound(""); a_Writer.AddString("Signature", MobHeadEntity.GetOwnerTextureSignature()); a_Writer.AddString("Value", MobHeadEntity.GetOwnerTexture()); a_Writer.EndCompound(); a_Writer.EndList(); a_Writer.EndCompound(); a_Writer.EndCompound(); break; } case E_BLOCK_FLOWER_POT: { auto & FlowerPotEntity = static_cast(a_BlockEntity); a_Writer.AddInt("Item", static_cast(FlowerPotEntity.GetItem().m_ItemType)); a_Writer.AddInt("Data", static_cast(FlowerPotEntity.GetItem().m_ItemDamage)); break; } case E_BLOCK_MOB_SPAWNER: { auto & MobSpawnerEntity = static_cast(a_BlockEntity); a_Writer.AddString("EntityId", cMonster::MobTypeToVanillaName(MobSpawnerEntity.GetEntity())); a_Writer.AddShort("Delay", MobSpawnerEntity.GetSpawnDelay()); break; } default: { break; } } } void cProtocol_1_8_0::WriteEntityMetadata(cPacketizer & a_Pkt, const cEntity & a_Entity) const { // Common metadata: Byte Flags = 0; if (a_Entity.IsOnFire()) { Flags |= 0x01; } if (a_Entity.IsCrouched()) { Flags |= 0x02; } if (a_Entity.IsSprinting()) { Flags |= 0x08; } if (a_Entity.IsRclking()) { Flags |= 0x10; } if (a_Entity.IsInvisible()) { Flags |= 0x20; } if (a_Entity.IsElytraFlying()) { Flags |= 0x80; } a_Pkt.WriteBEUInt8(0); // Byte(0) + index 0 a_Pkt.WriteBEUInt8(Flags); switch (a_Entity.GetEntityType()) { case cEntity::etPlayer: { auto & Player = static_cast(a_Entity); // Player name: a_Pkt.WriteBEUInt8(0x82); a_Pkt.WriteString(Player.GetName()); // Player health: a_Pkt.WriteBEUInt8(0x66); a_Pkt.WriteBEFloat(static_cast(Player.GetHealth())); // Skin flags: a_Pkt.WriteBEUInt8(0x0A); a_Pkt.WriteBEUInt8(static_cast(Player.GetSkinParts())); break; } case cEntity::etPickup: { a_Pkt.WriteBEUInt8((5 << 5) | 10); // Slot(5) + index 10 WriteItem(a_Pkt, static_cast(a_Entity).GetItem()); break; } case cEntity::etMinecart: { a_Pkt.WriteBEUInt8(0x51); // The following expression makes Minecarts shake more with less health or higher damage taken // It gets half the maximum health, and takes it away from the current health minus the half health: /* Health: 5 | 3 - (5 - 3) = 1 (shake power) Health: 3 | 3 - (3 - 3) = 3 Health: 1 | 3 - (1 - 3) = 5 */ auto & Minecart = static_cast(a_Entity); a_Pkt.WriteBEInt32(static_cast((((a_Entity.GetMaxHealth() / 2) - (a_Entity.GetHealth() - (a_Entity.GetMaxHealth() / 2))) * Minecart.LastDamage()) * 4)); a_Pkt.WriteBEUInt8(0x52); a_Pkt.WriteBEInt32(1); // Shaking direction, doesn't seem to affect anything a_Pkt.WriteBEUInt8(0x73); a_Pkt.WriteBEFloat(static_cast(Minecart.LastDamage() + 10)); // Damage taken / shake effect multiplyer if (Minecart.GetPayload() == cMinecart::mpNone) { auto & RideableMinecart = static_cast(Minecart); const cItem & MinecartContent = RideableMinecart.GetContent(); if (!MinecartContent.IsEmpty()) { a_Pkt.WriteBEUInt8(0x54); int Content = MinecartContent.m_ItemType; Content |= MinecartContent.m_ItemDamage << 8; a_Pkt.WriteBEInt32(Content); a_Pkt.WriteBEUInt8(0x55); a_Pkt.WriteBEInt32(RideableMinecart.GetBlockHeight()); a_Pkt.WriteBEUInt8(0x56); a_Pkt.WriteBEUInt8(1); } } else if (Minecart.GetPayload() == cMinecart::mpFurnace) { a_Pkt.WriteBEUInt8(0x10); a_Pkt.WriteBEUInt8(static_cast(Minecart).IsFueled() ? 1 : 0); } break; } // case etMinecart case cEntity::etProjectile: { auto & Projectile = static_cast(a_Entity); switch (Projectile.GetProjectileKind()) { case cProjectileEntity::pkArrow: { a_Pkt.WriteBEUInt8(0x10); a_Pkt.WriteBEUInt8(static_cast(Projectile).IsCritical() ? 1 : 0); break; } case cProjectileEntity::pkFirework: { a_Pkt.WriteBEUInt8(0xa8); WriteItem(a_Pkt, static_cast(Projectile).GetItem()); break; } default: { break; } } break; } // case etProjectile case cEntity::etMonster: { WriteMobMetadata(a_Pkt, static_cast(a_Entity)); break; } case cEntity::etItemFrame: { auto & Frame = static_cast(a_Entity); a_Pkt.WriteBEUInt8(0xa8); WriteItem(a_Pkt, Frame.GetItem()); a_Pkt.WriteBEUInt8(0x09); a_Pkt.WriteBEUInt8(Frame.GetItemRotation()); break; } // case etItemFrame default: { break; } } } void cProtocol_1_8_0::WriteEntityProperties(cPacketizer & a_Pkt, const cEntity & a_Entity) const { if (a_Entity.IsPlayer()) { const auto & Player = static_cast(a_Entity); a_Pkt.WriteBEInt32(1); // Count. a_Pkt.WriteString("generic.movementSpeed"); a_Pkt.WriteBEDouble(0.1 * Player.GetNormalMaxSpeed()); // The default game speed is 0.1, multiply that value by the relative speed. // It seems the modifiers aren't conditionally activated; their effects are applied immediately! // We have to keep on re-sending this packet when the client notifies us of sprint start and end, and so on. Strange. if (Player.IsSprinting()) { a_Pkt.WriteVarInt32(1); // Modifier count. a_Pkt.WriteBEUInt64(0x662a6b8dda3e4c1c); a_Pkt.WriteBEUInt64(0x881396ea6097278d); // UUID of the modifier (sprinting speed boost). a_Pkt.WriteBEDouble(Player.GetSprintingMaxSpeed() - Player.GetNormalMaxSpeed()); a_Pkt.WriteBEUInt8(2); } else { a_Pkt.WriteVarInt32(0); } } else { // const cMonster & Mob = (const cMonster &)a_Entity; // TODO: Send properties and modifiers based on the mob type a_Pkt.WriteBEInt32(0); } } void cProtocol_1_8_0::WriteItem(cPacketizer & a_Pkt, const cItem & a_Item) const { short ItemType = a_Item.m_ItemType; ASSERT(ItemType >= -1); // Check validity of packets in debug runtime if (ItemType <= 0) { // Fix, to make sure no invalid values are sent. ItemType = -1; } if (a_Item.IsEmpty()) { a_Pkt.WriteBEInt16(-1); return; } a_Pkt.WriteBEInt16(ItemType); a_Pkt.WriteBEInt8(a_Item.m_ItemCount); a_Pkt.WriteBEInt16(a_Item.m_ItemDamage); if (a_Item.m_Enchantments.IsEmpty() && a_Item.IsBothNameAndLoreEmpty() && (a_Item.m_ItemType != E_ITEM_FIREWORK_ROCKET) && (a_Item.m_ItemType != E_ITEM_FIREWORK_STAR) && !a_Item.m_ItemColor.IsValid()) { a_Pkt.WriteBEInt8(0); return; } // Send the enchantments and custom names: cFastNBTWriter Writer; if (a_Item.m_RepairCost != 0) { Writer.AddInt("RepairCost", a_Item.m_RepairCost); } if (!a_Item.m_Enchantments.IsEmpty()) { const char * TagName = (a_Item.m_ItemType == E_ITEM_BOOK) ? "StoredEnchantments" : "ench"; EnchantmentSerializer::WriteToNBTCompound(a_Item.m_Enchantments, Writer, TagName); } if (!a_Item.IsBothNameAndLoreEmpty() || a_Item.m_ItemColor.IsValid()) { Writer.BeginCompound("display"); if (a_Item.m_ItemColor.IsValid()) { Writer.AddInt("color", static_cast(a_Item.m_ItemColor.m_Color)); } if (!a_Item.IsCustomNameEmpty()) { Writer.AddString("Name", a_Item.m_CustomName); } if (!a_Item.IsLoreEmpty()) { Writer.BeginList("Lore", TAG_String); for (const auto & Line : a_Item.m_LoreTable) { Writer.AddString("", Line); } Writer.EndList(); } Writer.EndCompound(); } if ((a_Item.m_ItemType == E_ITEM_FIREWORK_ROCKET) || (a_Item.m_ItemType == E_ITEM_FIREWORK_STAR)) { cFireworkItem::WriteToNBTCompound(a_Item.m_FireworkItem, Writer, static_cast(a_Item.m_ItemType)); } Writer.Finish(); const auto Result = Writer.GetResult(); if (Result.empty()) { a_Pkt.WriteBEInt8(0); return; } a_Pkt.WriteBuf(Result); } void cProtocol_1_8_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mob) const { // Living Enitiy Metadata if (a_Mob.HasCustomName()) { a_Pkt.WriteBEUInt8(0x82); a_Pkt.WriteString(a_Mob.GetCustomName()); a_Pkt.WriteBEUInt8(0x03); a_Pkt.WriteBool(a_Mob.IsCustomNameAlwaysVisible()); } a_Pkt.WriteBEUInt8(0x66); a_Pkt.WriteBEFloat(static_cast(a_Mob.GetHealth())); switch (a_Mob.GetMobType()) { case mtBat: { auto & Bat = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x10); a_Pkt.WriteBEUInt8(Bat.IsHanging() ? 1 : 0); break; } // case mtBat case mtChicken: { auto & Chicken = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(Chicken.IsBaby() ? -1 : (Chicken.IsInLoveCooldown() ? 1 : 0)); break; } // case mtChicken case mtCow: { auto & Cow = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(Cow.IsBaby() ? -1 : (Cow.IsInLoveCooldown() ? 1 : 0)); break; } // case mtCow case mtCreeper: { auto & Creeper = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x10); a_Pkt.WriteBEUInt8(Creeper.IsBlowing() ? 1 : 255); a_Pkt.WriteBEUInt8(0x11); a_Pkt.WriteBEUInt8(Creeper.IsCharged() ? 1 : 0); break; } // case mtCreeper case mtEnderman: { auto & Enderman = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x30); a_Pkt.WriteBEInt16(static_cast(Enderman.GetCarriedBlock())); a_Pkt.WriteBEUInt8(0x11); a_Pkt.WriteBEUInt8(static_cast(Enderman.GetCarriedMeta())); a_Pkt.WriteBEUInt8(0x12); a_Pkt.WriteBEUInt8(Enderman.IsScreaming() ? 1 : 0); break; } // case mtEnderman case mtGhast: { auto & Ghast = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x10); a_Pkt.WriteBEUInt8(Ghast.IsCharging()); break; } // case mtGhast case mtHorse: { auto & Horse = static_cast(a_Mob); int Flags = 0; if (Horse.IsTame()) { Flags |= 0x02; } if (Horse.IsSaddled()) { Flags |= 0x04; } if (Horse.IsChested()) { Flags |= 0x08; } if (Horse.IsEating()) { Flags |= 0x20; } if (Horse.IsRearing()) { Flags |= 0x40; } if (Horse.IsMthOpen()) { Flags |= 0x80; } a_Pkt.WriteBEUInt8(0x50); // Int at index 16 a_Pkt.WriteBEInt32(Flags); a_Pkt.WriteBEUInt8(0x13); // Byte at index 19 a_Pkt.WriteBEUInt8(static_cast(Horse.GetHorseType())); a_Pkt.WriteBEUInt8(0x54); // Int at index 20 int Appearance = 0; Appearance = Horse.GetHorseColor(); Appearance |= Horse.GetHorseStyle() << 8; a_Pkt.WriteBEInt32(Appearance); a_Pkt.WriteBEUInt8(0x56); // Int at index 22 a_Pkt.WriteBEInt32(Horse.GetHorseArmour()); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(Horse.IsBaby() ? -1 : (Horse.IsInLoveCooldown() ? 1 : 0)); break; } // case mtHorse case mtMagmaCube: { auto & MagmaCube = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x10); a_Pkt.WriteBEUInt8(static_cast(MagmaCube.GetSize())); break; } // case mtMagmaCube case mtOcelot: { auto & Ocelot = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(Ocelot.IsBaby() ? -1 : (Ocelot.IsInLoveCooldown() ? 1 : 0)); break; } // case mtOcelot case mtPig: { auto & Pig = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(Pig.IsBaby() ? -1 : (Pig.IsInLoveCooldown() ? 1 : 0)); a_Pkt.WriteBEUInt8(0x10); a_Pkt.WriteBEUInt8(Pig.IsSaddled() ? 1 : 0); break; } // case mtPig case mtSheep: { auto & Sheep = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(Sheep.IsBaby() ? -1 : (Sheep.IsInLoveCooldown() ? 1 : 0)); a_Pkt.WriteBEUInt8(0x10); Byte SheepMetadata = 0; SheepMetadata = static_cast(Sheep.GetFurColor()); if (Sheep.IsSheared()) { SheepMetadata |= 0x10; } a_Pkt.WriteBEUInt8(SheepMetadata); break; } // case mtSheep case mtRabbit: { auto & Rabbit = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x12); a_Pkt.WriteBEUInt8(static_cast(Rabbit.GetRabbitType())); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(Rabbit.IsBaby() ? -1 : (Rabbit.IsInLoveCooldown() ? 1 : 0)); break; } // case mtRabbit case mtSlime: { auto & Slime = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x10); a_Pkt.WriteBEUInt8(static_cast(Slime.GetSize())); break; } // case mtSlime case mtSkeleton: case mtStray: { a_Pkt.WriteBEUInt8(0x0d); a_Pkt.WriteBEUInt8(0); // Is normal skeleton break; } case mtVillager: { auto & Villager = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x50); a_Pkt.WriteBEInt32(Villager.GetVilType()); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(Villager.IsBaby() ? -1 : 0); break; } // case mtVillager case mtWitch: { auto & Witch = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x15); a_Pkt.WriteBEUInt8(Witch.IsAngry() ? 1 : 0); break; } // case mtWitch case mtWither: { auto & Wither = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x54); // Int at index 20 a_Pkt.WriteBEInt32(static_cast(Wither.GetWitherInvulnerableTicks())); a_Pkt.WriteBEUInt8(0x66); // Float at index 6 a_Pkt.WriteBEFloat(static_cast(a_Mob.GetHealth())); break; } // case mtWither case mtWitherSkeleton: { a_Pkt.WriteBEUInt8(0x0d); a_Pkt.WriteBEUInt8(1); // Is wither skeleton break; } // case mtWitherSkeleton case mtWolf: { auto & Wolf = static_cast(a_Mob); Byte WolfStatus = 0; if (Wolf.IsSitting()) { WolfStatus |= 0x1; } if (Wolf.IsAngry()) { WolfStatus |= 0x2; } if (Wolf.IsTame()) { WolfStatus |= 0x4; } a_Pkt.WriteBEUInt8(0x10); a_Pkt.WriteBEUInt8(WolfStatus); a_Pkt.WriteBEUInt8(0x72); a_Pkt.WriteBEFloat(static_cast(a_Mob.GetHealth())); a_Pkt.WriteBEUInt8(0x13); a_Pkt.WriteBEUInt8(Wolf.IsBegging() ? 1 : 0); a_Pkt.WriteBEUInt8(0x14); a_Pkt.WriteBEUInt8(static_cast(Wolf.GetCollarColor())); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(Wolf.IsBaby() ? -1 : 0); break; } // case mtWolf case mtHusk: case mtZombie: { auto & Zombie = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(Zombie.IsBaby() ? 1 : -1); a_Pkt.WriteBEUInt8(0x0d); a_Pkt.WriteBEUInt8(0); a_Pkt.WriteBEUInt8(0x0e); a_Pkt.WriteBEUInt8(0); break; } // case mtZombie case mtZombiePigman: { auto & ZombiePigman = static_cast(a_Mob); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(ZombiePigman.IsBaby() ? 1 : -1); break; } // case mtZombiePigman case mtZombieVillager: { auto & ZombieVillager = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(0x0c); a_Pkt.WriteBEInt8(ZombieVillager.IsBaby() ? 1 : -1); a_Pkt.WriteBEUInt8(0x0d); a_Pkt.WriteBEUInt8(1); a_Pkt.WriteBEUInt8(0x0e); a_Pkt.WriteBEUInt8((ZombieVillager.ConversionTime() == -1) ? 0 : 1); break; } // case mtZombieVillager case mtBlaze: case mtElderGuardian: case mtGuardian: { // TODO: Mobs with extra fields that aren't implemented break; } case mtCat: case mtEndermite: case mtDonkey: case mtMule: case mtSkeletonHorse: case mtZombieHorse: { // Todo: Mobs not added yet. Grouped ones have the same metadata ASSERT(!"cProtocol_1_8::WriteMobMetadata: received unimplemented type"); break; } case mtCaveSpider: case mtEnderDragon: case mtGiant: case mtIronGolem: case mtMooshroom: case mtSilverfish: case mtSnowGolem: case mtSpider: case mtSquid: { // Allowed mobs without additional metadata break; } default: UNREACHABLE("cProtocol_1_8::WriteMobMetadata: received mob of invalid type"); } // switch (a_Mob.GetType()) } void cProtocol_1_8_0::AddReceivedData(cByteBuffer & a_Buffer, const ContiguousByteBufferView a_Data) { // Write the incoming data into the comm log file: if (g_ShouldLogCommIn && m_CommLogFile.IsOpen()) { if (a_Buffer.GetReadableSpace() > 0) { ContiguousByteBuffer AllData; size_t OldReadableSpace = a_Buffer.GetReadableSpace(); a_Buffer.ReadAll(AllData); a_Buffer.ResetRead(); a_Buffer.SkipRead(a_Buffer.GetReadableSpace() - OldReadableSpace); ASSERT(a_Buffer.GetReadableSpace() == OldReadableSpace); AString Hex; CreateHexDump(Hex, AllData.data(), AllData.size(), 16); m_CommLogFile.Printf("Incoming data, %zu (0x%zx) unparsed bytes already present in buffer:\n%s\n", AllData.size(), AllData.size(), Hex.c_str() ); } AString Hex; CreateHexDump(Hex, a_Data.data(), a_Data.size(), 16); m_CommLogFile.Printf("Incoming data: %zu (0x%zx) bytes: \n%s\n", a_Data.size(), a_Data.size(), Hex.c_str() ); m_CommLogFile.Flush(); } if (!a_Buffer.Write(a_Data.data(), a_Data.size())) { // Too much data in the incoming queue, report to caller: m_Client->PacketBufferFull(); return; } // Handle all complete packets: for (;;) { UInt32 PacketLen; if (!a_Buffer.ReadVarInt(PacketLen)) { // Not enough data a_Buffer.ResetRead(); break; } if (!a_Buffer.CanReadBytes(PacketLen)) { // The full packet hasn't been received yet a_Buffer.ResetRead(); break; } // Check packet for compression: if (m_State == 3) { UInt32 NumBytesRead = static_cast(a_Buffer.GetReadableSpace()); UInt32 UncompressedSize; if (!a_Buffer.ReadVarInt(UncompressedSize)) { m_Client->Kick("Compression packet incomplete"); return; } NumBytesRead -= static_cast(a_Buffer.GetReadableSpace()); // How many bytes has the UncompressedSize taken up? ASSERT(PacketLen > NumBytesRead); PacketLen -= NumBytesRead; if (UncompressedSize > 0) { // Decompress the data: m_Extractor.ReadFrom(a_Buffer, PacketLen); a_Buffer.CommitRead(); const auto UncompressedData = m_Extractor.Extract(UncompressedSize); const auto Uncompressed = UncompressedData.GetView(); cByteBuffer bb(Uncompressed.size()); // Compression was used, move the uncompressed data: VERIFY(bb.Write(Uncompressed.data(), Uncompressed.size())); HandlePacket(bb); continue; } } // Move the packet payload to a separate cByteBuffer, bb: cByteBuffer bb(PacketLen); // No compression was used, move directly: VERIFY(a_Buffer.ReadToByteBuffer(bb, static_cast(PacketLen))); a_Buffer.CommitRead(); HandlePacket(bb); } // for (ever) // Log any leftover bytes into the logfile: if (g_ShouldLogCommIn && (a_Buffer.GetReadableSpace() > 0) && m_CommLogFile.IsOpen()) { ContiguousByteBuffer AllData; size_t OldReadableSpace = a_Buffer.GetReadableSpace(); a_Buffer.ReadAll(AllData); a_Buffer.ResetRead(); a_Buffer.SkipRead(a_Buffer.GetReadableSpace() - OldReadableSpace); ASSERT(a_Buffer.GetReadableSpace() == OldReadableSpace); AString Hex; CreateHexDump(Hex, AllData.data(), AllData.size(), 16); m_CommLogFile.Printf("There are %zu (0x%zx) bytes of non-parse-able data left in the buffer:\n%s", a_Buffer.GetReadableSpace(), a_Buffer.GetReadableSpace(), Hex.c_str() ); m_CommLogFile.Flush(); } } UInt8 cProtocol_1_8_0::GetProtocolEntityType(const cEntity & a_Entity) { using Type = cEntity::eEntityType; switch (a_Entity.GetEntityType()) { case Type::etEnderCrystal: return 51; case Type::etPickup: return 2; case Type::etFallingBlock: return 70; case Type::etMinecart: return 10; case Type::etBoat: return 1; case Type::etTNT: return 50; case Type::etProjectile: { using PType = cProjectileEntity::eKind; const auto & Projectile = static_cast(a_Entity); switch (Projectile.GetProjectileKind()) { case PType::pkArrow: return 60; case PType::pkSnowball: return 61; case PType::pkEgg: return 62; case PType::pkGhastFireball: return 63; case PType::pkFireCharge: return 64; case PType::pkEnderPearl: return 65; case PType::pkExpBottle: return 75; case PType::pkSplashPotion: return 73; case PType::pkFirework: return 76; case PType::pkWitherSkull: return 66; } } case Type::etFloater: return 90; case Type::etItemFrame: return 71; case Type::etLeashKnot: return 77; // Non-objects must not be sent case Type::etEntity: case Type::etPlayer: case Type::etMonster: case Type::etExpOrb: case Type::etPainting: break; } UNREACHABLE("Unhandled entity kind"); } int cProtocol_1_8_0::GetProtocolParticleID(const AString & a_ParticleName) { static const std::unordered_map ParticleMap { // Initialize the ParticleMap: { "explode", 0 }, { "largeexplode", 1 }, { "hugeexplosion", 2 }, { "fireworksspark", 3 }, { "bubble", 4 }, { "splash", 5 }, { "wake", 6 }, { "suspended", 7 }, { "depthsuspend", 8 }, { "crit", 9 }, { "magiccrit", 10 }, { "smoke", 11 }, { "largesmoke", 12 }, { "spell", 13 }, { "instantspell", 14 }, { "mobspell", 15 }, { "mobspellambient", 16 }, { "witchmagic", 17 }, { "dripwater", 18 }, { "driplava", 19 }, { "angryvillager", 20 }, { "happyvillager", 21 }, { "townaura", 22 }, { "note", 23 }, { "portal", 24 }, { "enchantmenttable", 25 }, { "flame", 26 }, { "lava", 27 }, { "footstep", 28 }, { "cloud", 29 }, { "reddust", 30 }, { "snowballpoof", 31 }, { "snowshovel", 32 }, { "slime", 33 }, { "heart", 34 }, { "barrier", 35 }, { "iconcrack", 36 }, { "blockcrack", 37 }, { "blockdust", 38 }, { "droplet", 39 }, { "take", 40 }, { "mobappearance", 41 }, { "dragonbreath", 42 }, { "endrod", 43 }, { "damageindicator", 44 }, { "sweepattack", 45 }, { "fallingdust", 46 }, { "totem", 47 }, { "spit", 48 } }; const auto ParticleName = StrToLower(a_ParticleName); const auto FindResult = ParticleMap.find(ParticleName); if (FindResult == ParticleMap.end()) { LOGWARNING("Unknown particle: %s", a_ParticleName.c_str()); ASSERT(!"Unknown particle"); return 0; } return FindResult->second; } const char * cProtocol_1_8_0::GetProtocolStatisticName(Statistic a_Statistic) { switch (a_Statistic) { // V1.8 Achievements case Statistic::AchOpenInventory: return "achievement.openInventory"; case Statistic::AchMineWood: return "achievement.mineWood"; case Statistic::AchBuildWorkBench: return "achievement.buildWorkBench"; case Statistic::AchBuildPickaxe: return "achievement.buildPickaxe"; case Statistic::AchBuildFurnace: return "achievement.buildFurnace"; case Statistic::AchAcquireIron: return "achievement.acquireIron"; case Statistic::AchBuildHoe: return "achievement.buildHoe"; case Statistic::AchMakeBread: return "achievement.makeBread"; case Statistic::AchBakeCake: return "achievement.bakeCake"; case Statistic::AchBuildBetterPickaxe: return "achievement.buildBetterPickaxe"; case Statistic::AchCookFish: return "achievement.cookFish"; case Statistic::AchOnARail: return "achievement.onARail"; case Statistic::AchBuildSword: return "achievement.buildSword"; case Statistic::AchKillEnemy: return "achievement.killEnemy"; case Statistic::AchKillCow: return "achievement.killCow"; case Statistic::AchFlyPig: return "achievement.flyPig"; case Statistic::AchSnipeSkeleton: return "achievement.snipeSkeleton"; case Statistic::AchDiamonds: return "achievement.diamonds"; case Statistic::AchPortal: return "achievement.portal"; case Statistic::AchGhast: return "achievement.ghast"; case Statistic::AchBlazeRod: return "achievement.blazeRod"; case Statistic::AchPotion: return "achievement.potion"; case Statistic::AchTheEnd: return "achievement.theEnd"; case Statistic::AchTheEnd2: return "achievement.theEnd2"; case Statistic::AchEnchantments: return "achievement.enchantments"; case Statistic::AchOverkill: return "achievement.overkill"; case Statistic::AchBookcase: return "achievement.bookcase"; case Statistic::AchExploreAllBiomes: return "achievement.exploreAllBiomes"; case Statistic::AchSpawnWither: return "achievement.spawnWither"; case Statistic::AchKillWither: return "achievement.killWither"; case Statistic::AchFullBeacon: return "achievement.fullBeacon"; case Statistic::AchBreedCow: return "achievement.breedCow"; case Statistic::AchDiamondsToYou: return "achievement.diamondsToYou"; // V1.8 stats case Statistic::AnimalsBred: return "stat.animalsBred"; case Statistic::BoatOneCm: return "stat.boatOneCm"; case Statistic::ClimbOneCm: return "stat.climbOneCm"; case Statistic::CrouchOneCm: return "stat.crouchOneCm"; case Statistic::DamageDealt: return "stat.damageDealt"; case Statistic::DamageTaken: return "stat.damageTaken"; case Statistic::Deaths: return "stat.deaths"; case Statistic::Drop: return "stat.drop"; case Statistic::FallOneCm: return "stat.fallOneCm"; case Statistic::FishCaught: return "stat.fishCaught"; case Statistic::FlyOneCm: return "stat.flyOneCm"; case Statistic::HorseOneCm: return "stat.horseOneCm"; case Statistic::Jump: return "stat.jump"; case Statistic::LeaveGame: return "stat.leaveGame"; case Statistic::MinecartOneCm: return "stat.minecartOneCm"; case Statistic::MobKills: return "stat.mobKills"; case Statistic::PigOneCm: return "stat.pigOneCm"; case Statistic::PlayerKills: return "stat.playerKills"; case Statistic::PlayOneMinute: return "stat.playOneMinute"; case Statistic::SprintOneCm: return "stat.sprintOneCm"; case Statistic::SwimOneCm: return "stat.swimOneCm"; case Statistic::TalkedToVillager: return "stat.talkedToVillager"; case Statistic::TimeSinceDeath: return "stat.timeSinceDeath"; case Statistic::TradedWithVillager: return "stat.tradedWithVillager"; case Statistic::WalkOneCm: return "stat.walkOneCm"; case Statistic::WalkUnderWaterOneCm: return "stat.diveOneCm"; // V1.8.2 stats case Statistic::CleanArmor: return "stat.armorCleaned"; case Statistic::CleanBanner: return "stat.bannerCleaned"; case Statistic::EatCakeSlice: return "stat.cakeSlicesEaten"; case Statistic::EnchantItem: return "stat.itemEnchanted"; case Statistic::FillCauldron: return "stat.cauldronFilled"; case Statistic::InspectDispenser: return "stat.dispenserInspected"; case Statistic::InspectDropper: return "stat.dropperInspected"; case Statistic::InspectHopper: return "stat.hopperInspected"; case Statistic::InteractWithBeacon: return "stat.beaconInteraction"; case Statistic::InteractWithBrewingstand: return "stat.brewingstandInteraction"; case Statistic::InteractWithCraftingTable: return "stat.craftingTableInteraction"; case Statistic::InteractWithFurnace: return "stat.furnaceInteraction"; case Statistic::OpenChest: return "stat.chestOpened"; case Statistic::OpenEnderchest: return "stat.enderchestOpened"; case Statistic::PlayNoteblock: return "stat.noteblockPlayed"; case Statistic::PlayRecord: return "stat.recordPlayed"; case Statistic::PotFlower: return "stat.flowerPotted"; case Statistic::TriggerTrappedChest: return "stat.trappedChestTriggered"; case Statistic::TuneNoteblock: return "stat.noteblockTuned"; case Statistic::UseCauldron: return "stat.cauldronUsed"; // V1.9 stats case Statistic::AviateOneCm: return "stat.aviateOneCm"; case Statistic::SleepInBed: return "stat.sleepInBed"; case Statistic::SneakTime: return "stat.sneakTime"; default: return ""; } } void cProtocol_1_8_0::HandlePacket(cByteBuffer & a_Buffer) { UInt32 PacketType; if (!a_Buffer.ReadVarInt(PacketType)) { // Not enough data return; } // Log the packet info into the comm log file: if (g_ShouldLogCommIn && m_CommLogFile.IsOpen()) { ContiguousByteBuffer PacketData; a_Buffer.ReadAll(PacketData); a_Buffer.ResetRead(); a_Buffer.ReadVarInt(PacketType); // We have already read the packet type once, it will be there again ASSERT(PacketData.size() > 0); // We have written an extra NUL, so there had to be at least one byte read PacketData.resize(PacketData.size() - 1); AString PacketDataHex; CreateHexDump(PacketDataHex, PacketData.data(), PacketData.size(), 16); m_CommLogFile.Printf("Next incoming packet is type %u (0x%x), length %u (0x%x) at state %d. Payload:\n%s\n", PacketType, PacketType, a_Buffer.GetUsedSpace(), a_Buffer.GetUsedSpace(), m_State, PacketDataHex.c_str() ); } if (!HandlePacket(a_Buffer, PacketType)) { // Unknown packet, already been reported, but without the length. Log the length here: LOGWARNING("Unhandled packet: type 0x%x, state %d, length %u", PacketType, m_State, a_Buffer.GetUsedSpace()); #ifndef NDEBUG // Dump the packet contents into the log: a_Buffer.ResetRead(); ContiguousByteBuffer Packet; a_Buffer.ReadAll(Packet); Packet.resize(Packet.size() - 1); // Drop the final NUL pushed there for over-read detection AString Out; CreateHexDump(Out, Packet.data(), Packet.size(), 24); LOGD("Packet contents:\n%s", Out.c_str()); #endif // !NDEBUG // Put a message in the comm log: if (g_ShouldLogCommIn && m_CommLogFile.IsOpen()) { m_CommLogFile.Printf("^^^^^^ Unhandled packet ^^^^^^\n\n\n"); } return; } // The packet should have nothing left in the buffer: if (a_Buffer.GetReadableSpace() != 0) { // Read more or less than packet length, report as error LOGWARNING("Protocol 1.8: Wrong number of bytes read for packet 0x%x, state %d. Read %zu bytes, packet contained %u bytes", PacketType, m_State, a_Buffer.GetUsedSpace() - a_Buffer.GetReadableSpace(), a_Buffer.GetUsedSpace() ); // Put a message in the comm log: if (g_ShouldLogCommIn && m_CommLogFile.IsOpen()) { m_CommLogFile.Printf("^^^^^^ Wrong number of bytes read for this packet (exp %d left, got %zu left) ^^^^^^\n\n\n", 1, a_Buffer.GetReadableSpace() ); m_CommLogFile.Flush(); } ASSERT(!"Read wrong number of bytes!"); m_Client->PacketError(PacketType); } } void cProtocol_1_8_0::SendEntityTeleport(const cEntity & a_Entity) { cPacketizer Pkt(*this, pktTeleportEntity); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteFPInt(a_Entity.GetPosX()); Pkt.WriteFPInt(a_Entity.GetPosY()); Pkt.WriteFPInt(a_Entity.GetPosZ()); Pkt.WriteByteAngle(a_Entity.GetYaw()); Pkt.WriteByteAngle(a_Entity.GetPitch()); Pkt.WriteBool(a_Entity.IsOnGround()); } void cProtocol_1_8_0::StartEncryption(const Byte * a_Key) { m_Encryptor.Init(a_Key, a_Key); m_Decryptor.Init(a_Key, a_Key); m_IsEncrypted = true; // Prepare the m_AuthServerID: cSha1Checksum Checksum; cServer * Server = cRoot::Get()->GetServer(); const AString & ServerID = Server->GetServerID(); Checksum.Update(reinterpret_cast(ServerID.c_str()), ServerID.length()); Checksum.Update(a_Key, 16); Checksum.Update(reinterpret_cast(Server->GetPublicKeyDER().data()), Server->GetPublicKeyDER().size()); Byte Digest[20]; Checksum.Finalize(Digest); cSha1Checksum::DigestToJava(Digest, m_AuthServerID); }