1 files changed, 791 insertions, 0 deletions
diff --git a/source/Protocol/ProtocolRecognizer.cpp b/source/Protocol/ProtocolRecognizer.cpp
new file mode 100644
index 000000000..290f2df75
--- /dev/null
+++ b/source/Protocol/ProtocolRecognizer.cpp
@@ -0,0 +1,791 @@
+
+// ProtocolRecognizer.cpp
+
+// Implements the cProtocolRecognizer class representing the meta-protocol that recognizes possibly multiple 
+// protocol versions and redirects everything to them
+
+#include "Globals.h"
+
+#include "ProtocolRecognizer.h"
+#include "Protocol125.h"
+#include "Protocol132.h"
+#include "Protocol14x.h"
+#include "Protocol15x.h"
+#include "Protocol16x.h"
+#include "../ClientHandle.h"
+#include "../Root.h"
+#include "../World.h"
+#include "../ChatColor.h"
+
+
+
+
+
+cProtocolRecognizer::cProtocolRecognizer(cClientHandle * a_Client) :
+	super(a_Client),
+	m_Protocol(NULL),
+	m_Buffer(512)
+{
+}
+
+
+
+
+
+cProtocolRecognizer::~cProtocolRecognizer()
+{
+	delete m_Protocol;
+}
+
+
+
+
+
+AString cProtocolRecognizer::GetVersionTextFromInt(int a_ProtocolVersion)
+{
+	switch (a_ProtocolVersion)
+	{
+		case PROTO_VERSION_1_2_5: return "1.2.5";
+		case PROTO_VERSION_1_3_2: return "1.3.2";
+		case PROTO_VERSION_1_4_2: return "1.4.2";
+		case PROTO_VERSION_1_4_4: return "1.4.4";
+		case PROTO_VERSION_1_4_6: return "1.4.6";
+		case PROTO_VERSION_1_5_0: return "1.5";
+		case PROTO_VERSION_1_5_2: return "1.5.2";
+		case PROTO_VERSION_1_6_1: return "1.6.1";
+		case PROTO_VERSION_1_6_2: return "1.6.2";
+	}
+	ASSERT(!"Unknown protocol version");
+	return Printf("Unknown protocol (%d)", a_ProtocolVersion);
+}
+
+
+
+
+
+void cProtocolRecognizer::DataReceived(const char * a_Data, int a_Size)
+{
+	if (m_Protocol == NULL)
+	{
+		if (!m_Buffer.Write(a_Data, a_Size))
+		{
+			m_Client->Kick("Unsupported protocol version");
+			return;
+		}
+		
+		if (!TryRecognizeProtocol())
+		{
+			return;
+		}
+
+		// The protocol has just been recognized, dump the whole m_Buffer contents into it for parsing:
+		AString Dump;
+		m_Buffer.ResetRead();
+		m_Buffer.ReadAll(Dump);
+		m_Protocol->DataReceived(Dump.data(), Dump.size());
+	}
+	else
+	{
+		m_Protocol->DataReceived(a_Data, a_Size);
+	}
+}
+
+
+
+
+
+void cProtocolRecognizer::SendAttachEntity(const cEntity & a_Entity, const cEntity * a_Vehicle)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendAttachEntity(a_Entity, a_Vehicle);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendBlockAction(a_BlockX, a_BlockY, a_BlockZ, a_Byte1, a_Byte2, a_BlockType);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendBlockBreakAnim(int a_entityID, int a_BlockX, int a_BlockY, int a_BlockZ, char stage)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendBlockBreakAnim(a_entityID, a_BlockX, a_BlockY, a_BlockZ, stage);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendBlockChange(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendBlockChange(a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendBlockChanges(a_ChunkX, a_ChunkZ, a_Changes);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendChat(const AString & a_Message)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendChat(a_Message);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendChunkData(int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendChunkData(a_ChunkX, a_ChunkZ, a_Serializer);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendCollectPickup(const cPickup & a_Pickup, const cPlayer & a_Player)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendCollectPickup(a_Pickup, a_Player);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendDestroyEntity(const cEntity & a_Entity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendDestroyEntity(a_Entity);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendDisconnect(const AString & a_Reason)
+{
+	if (m_Protocol != NULL)
+	{
+		m_Protocol->SendDisconnect(a_Reason);
+	}
+	else
+	{
+		// This is used when the client sends a server-ping, respond with the default packet:
+		WriteByte  ((char)0xff);  // PACKET_DISCONNECT
+		WriteString(a_Reason);
+	}
+}
+
+
+
+
+void cProtocolRecognizer::SendEditSign(int a_BlockX, int a_BlockY, int a_BlockZ)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEditSign(a_BlockX, a_BlockY, a_BlockZ);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntityEquipment(a_Entity, a_SlotNum, a_Item);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntityHeadLook(const cEntity & a_Entity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntityHeadLook(a_Entity);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntityLook(const cEntity & a_Entity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntityLook(a_Entity);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntityMetadata(const cEntity & a_Entity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntityMetadata(a_Entity);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntityProperties(const cEntity & a_Entity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntityProperties(a_Entity);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntityRelMove(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntityRelMove(a_Entity, a_RelX, a_RelY, a_RelZ);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntityRelMoveLook(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntityRelMoveLook(a_Entity, a_RelX, a_RelY, a_RelZ);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntityStatus(const cEntity & a_Entity, char a_Status)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntityStatus(a_Entity, a_Status);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntityVelocity(const cEntity & a_Entity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntityVelocity(a_Entity);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendExplosion(double a_BlockX, double a_BlockY, double a_BlockZ, float a_Radius, const cVector3iArray & a_BlocksAffected, const Vector3d & a_PlayerMotion)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendExplosion(a_BlockX,a_BlockY,a_BlockZ,a_Radius, a_BlocksAffected, a_PlayerMotion);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendGameMode(eGameMode a_GameMode)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendGameMode(a_GameMode);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendHealth(void)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendHealth();
+}
+
+
+
+
+
+void cProtocolRecognizer::SendInventoryProgress(char a_WindowID, short a_Progressbar, short a_Value)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendInventoryProgress(a_WindowID, a_Progressbar, a_Value);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendInventorySlot(char a_WindowID, short a_SlotNum, const cItem & a_Item)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendInventorySlot(a_WindowID, a_SlotNum, a_Item);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendKeepAlive(int a_PingID)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendKeepAlive(a_PingID);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendLogin(const cPlayer & a_Player, const cWorld & a_World)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendLogin(a_Player, a_World);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendPickupSpawn(const cPickup & a_Pickup)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendPickupSpawn(a_Pickup);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendPlayerAnimation(const cPlayer & a_Player, char a_Animation)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendPlayerAnimation(a_Player, a_Animation);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendPlayerListItem(const cPlayer & a_Player, bool a_IsOnline)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendPlayerListItem(a_Player, a_IsOnline);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendPlayerMaxSpeed(void)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendPlayerMaxSpeed();
+}
+
+
+
+
+
+void cProtocolRecognizer::SendPlayerMoveLook(void)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendPlayerMoveLook();
+}
+
+
+
+
+
+void cProtocolRecognizer::SendPlayerPosition(void)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendPlayerPosition();
+}
+
+
+
+
+
+void cProtocolRecognizer::SendPlayerSpawn(const cPlayer & a_Player)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendPlayerSpawn(a_Player);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendRespawn(void)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendRespawn();
+}
+
+
+
+
+
+void cProtocolRecognizer::SendSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendSoundEffect(a_SoundName, a_SrcX, a_SrcY, a_SrcZ, a_Volume, a_Pitch);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendSoundParticleEffect(int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendSoundParticleEffect(a_EffectID, a_SrcX, a_SrcY, a_SrcZ, a_Data);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendSpawnFallingBlock(const cFallingBlock & a_FallingBlock)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendSpawnFallingBlock(a_FallingBlock);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendSpawnMob(const cMonster & a_Mob)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendSpawnMob(a_Mob);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendSpawnObject(const cEntity & a_Entity, char a_ObjectType, int a_ObjectData, Byte a_Yaw, Byte a_Pitch)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendSpawnObject(a_Entity, a_ObjectType, a_ObjectData, a_Yaw, a_Pitch);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendSpawnVehicle(const cEntity & a_Vehicle, char a_VehicleType)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendSpawnVehicle(a_Vehicle, a_VehicleType);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendTabCompletionResults(const AStringVector & a_Results)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendTabCompletionResults(a_Results);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendTeleportEntity(const cEntity & a_Entity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendTeleportEntity(a_Entity);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendThunderbolt(a_BlockX, a_BlockY, a_BlockZ);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendTimeUpdate(Int64 a_WorldAge, Int64 a_TimeOfDay)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendTimeUpdate(a_WorldAge, a_TimeOfDay);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendUnloadChunk(int a_ChunkX, int a_ChunkZ)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendUnloadChunk(a_ChunkX, a_ChunkZ);
+}
+
+
+
+
+
+void cProtocolRecognizer::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_Protocol != NULL);
+	m_Protocol->SendUpdateSign(a_BlockX, a_BlockY, a_BlockZ, a_Line1, a_Line2, a_Line3, a_Line4);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendUseBed(const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ )
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendUseBed(a_Entity, a_BlockX, a_BlockY, a_BlockZ);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendWeather(eWeather a_Weather)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendWeather(a_Weather);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendWholeInventory(const cInventory & a_Inventory)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendWholeInventory(a_Inventory);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendWholeInventory(const cWindow & a_Window)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendWholeInventory(a_Window);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendWindowClose(const cWindow & a_Window)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendWindowClose(a_Window);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendWindowOpen(char a_WindowID, char a_WindowType, const AString & a_WindowTitle, char a_NumSlots)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendWindowOpen(a_WindowID, a_WindowType, a_WindowTitle, a_NumSlots);
+}
+
+
+
+
+
+AString cProtocolRecognizer::GetAuthServerID(void)
+{
+	ASSERT(m_Protocol != NULL);
+	return m_Protocol->GetAuthServerID();
+}
+
+
+
+
+
+void cProtocolRecognizer::SendData(const char * a_Data, int a_Size)
+{
+	// This is used only when handling the server ping
+	m_Client->SendData(a_Data, a_Size);
+}
+
+
+
+
+
+bool cProtocolRecognizer::TryRecognizeProtocol(void)
+{
+	// NOTE: If a new protocol is added or an old one is removed, adjust MCS_CLIENT_VERSIONS and 
+	// MCS_PROTOCOL_VERSIONS macros in the header file, as well as PROTO_VERSION_LATEST macro
+	
+	// The first packet should be a Handshake, 0x02:
+	unsigned char PacketType;
+	if (!m_Buffer.ReadByte(PacketType))
+	{
+		return false;
+	}
+	switch (PacketType)
+	{
+		case 0x02: break;  // Handshake, continue recognizing
+		case 0xfe: HandleServerPing(); return false;
+		default: return false;
+	}
+	
+	// 1.3.2 starts with 0x02 0x39 <name-length-short>
+	// 1.2.5 starts with 0x02 <name-length-short> and name is expected to less than 0x3900 long :)
+	char ch;
+	if (!m_Buffer.ReadChar(ch))
+	{
+		return false;
+	}
+	switch (ch)
+	{
+	 case PROTO_VERSION_1_3_2:
+		{
+			m_Protocol = new cProtocol132(m_Client);
+			return true;
+		}
+		case PROTO_VERSION_1_4_2:
+		case PROTO_VERSION_1_4_4:
+		{
+			m_Protocol = new cProtocol142(m_Client);
+			return true;
+		}
+		case PROTO_VERSION_1_4_6:
+		{
+			m_Protocol = new cProtocol146(m_Client);
+			return true;
+		}
+		case PROTO_VERSION_1_5_0:
+		case PROTO_VERSION_1_5_2:
+		{
+			m_Protocol = new cProtocol150(m_Client);
+			return true;
+		}
+		case PROTO_VERSION_1_6_1:
+		{
+			m_Protocol = new cProtocol161(m_Client);
+			return true;
+		}
+		case PROTO_VERSION_1_6_2:
+		{
+			m_Protocol = new cProtocol162(m_Client);
+			return true;
+		}
+	}
+	m_Protocol = new cProtocol125(m_Client);
+	return true;
+}
+
+
+
+
+
+void cProtocolRecognizer::HandleServerPing(void)
+{
+	AString Reply;
+	switch (cRoot::Get()->m_PrimaryServerVersion)
+	{
+		case PROTO_VERSION_1_2_5:
+		case PROTO_VERSION_1_3_2:
+		{
+			// http://wiki.vg/wiki/index.php?title=Protocol&oldid=3099#Server_List_Ping_.280xFE.29
+			Printf(Reply, "%s%s%i%s%i", 
+				cRoot::Get()->GetDefaultWorld()->GetDescription().c_str(), 
+				cChatColor::Delimiter.c_str(), 
+				cRoot::Get()->GetDefaultWorld()->GetNumPlayers(),
+				cChatColor::Delimiter.c_str(), 
+				cRoot::Get()->GetDefaultWorld()->GetMaxPlayers()
+			);
+			break;
+		}
+		
+		case PROTO_VERSION_1_4_2:
+		case PROTO_VERSION_1_4_4:
+		case PROTO_VERSION_1_4_6:
+		case PROTO_VERSION_1_5_0:
+		case PROTO_VERSION_1_5_2:
+		case PROTO_VERSION_1_6_1:
+		case PROTO_VERSION_1_6_2:
+		{
+			// The server list ping now has 1 more byte of "magic". Mojang just loves to complicate stuff.
+			// http://wiki.vg/wiki/index.php?title=Protocol&oldid=3101#Server_List_Ping_.280xFE.29
+			// _X 2012_10_31: I know that this needn't eat the byte, since it still may be in transit.
+			//    Who cares? We're disconnecting anyway.
+			if (m_Buffer.CanReadBytes(1))
+			{
+				byte val;
+				m_Buffer.ReadByte(val);
+				ASSERT(val == 0x01);
+			}
+			
+			// http://wiki.vg/wiki/index.php?title=Server_List_Ping&oldid=3100
+			AString NumPlayers;
+			Printf(NumPlayers, "%d", cRoot::Get()->GetDefaultWorld()->GetNumPlayers());
+			AString MaxPlayers;
+			Printf(MaxPlayers, "%d", cRoot::Get()->GetDefaultWorld()->GetMaxPlayers());
+			
+			AString ProtocolVersionNum;
+			Printf(ProtocolVersionNum, "%d", cRoot::Get()->m_PrimaryServerVersion);
+			AString ProtocolVersionTxt(GetVersionTextFromInt(cRoot::Get()->m_PrimaryServerVersion));
+
+			// Cannot use Printf() because of in-string NUL bytes.
+			Reply = cChatColor::Delimiter;
+			Reply.append("1");
+			Reply.push_back(0);
+			Reply.append(ProtocolVersionNum);
+			Reply.push_back(0);
+			Reply.append(ProtocolVersionTxt);
+			Reply.push_back(0);
+			Reply.append(cRoot::Get()->GetDefaultWorld()->GetDescription());
+			Reply.push_back(0);
+			Reply.append(NumPlayers);
+			Reply.push_back(0);
+			Reply.append(MaxPlayers);
+			break;
+		}
+	}  // switch (m_PrimaryServerVersion)
+	m_Client->Kick(Reply);
+}
+
+
+
+