From f5fe723b2a704da475b24a594fd59f448cf133a3 Mon Sep 17 00:00:00 2001
From: "madmaxoft@gmail.com"
 <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>
Date: Thu, 30 Aug 2012 09:56:59 +0000
Subject: Added a basic protocol recognizer and the base for 1.3.2 protocol.
 Also fixed a few type-related warnings.

git-svn-id: http://mc-server.googlecode.com/svn/trunk@805 0a769ca7-a7f5-676a-18bf-c427514a06d6
---
 source/ProtocolRecognizer.cpp | 522 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 522 insertions(+)
 create mode 100644 source/ProtocolRecognizer.cpp

(limited to 'source/ProtocolRecognizer.cpp')

diff --git a/source/ProtocolRecognizer.cpp b/source/ProtocolRecognizer.cpp
new file mode 100644
index 000000000..af917b7de
--- /dev/null
+++ b/source/ProtocolRecognizer.cpp
@@ -0,0 +1,522 @@
+
+// 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 "cClientHandle.h"
+#include "cRoot.h"
+#include "cWorld.h"
+#include "cChatColor.h"
+
+
+
+
+
+cProtocolRecognizer::cProtocolRecognizer(cClientHandle * a_Client) :
+	super(a_Client),
+	m_Protocol(NULL),
+	m_Buffer(512)
+{
+}
+
+
+
+
+
+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;
+		}
+		LOGD("ProtocolRecognizer at %p recognized protocol %p", this, m_Protocol);
+
+		// 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::SendBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendBlockAction(a_BlockX, a_BlockY, a_BlockZ, a_Byte1, a_Byte2);
+}
+
+
+
+
+
+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::SendEntHeadLook(const cEntity & a_Entity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntHeadLook(a_Entity);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntLook(const cEntity & a_Entity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntLook(a_Entity);
+}
+
+
+
+
+
+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::SendEntityStatus(const cEntity & a_Entity, char a_Status)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntityStatus(a_Entity, a_Status);
+}
+
+
+
+
+
+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)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendLogin(a_Player);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendMetadata(const cEntity & a_Entity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendMetadata(a_Entity);
+}
+
+
+
+
+
+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::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::SendEntRelMove(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntRelMove(a_Entity, a_RelX, a_RelY, a_RelZ);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendEntRelMoveLook(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendEntRelMoveLook(a_Entity, a_RelX, a_RelY, a_RelZ);
+}
+
+
+
+
+
+void cProtocolRecognizer::SendRespawn(void)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendRespawn();
+}
+
+
+
+
+
+void cProtocolRecognizer::SendSpawnMob(const cMonster & a_Mob)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendSpawnMob(a_Mob);
+}
+
+
+
+
+
+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_WorldTime)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendTimeUpdate(a_WorldTime);
+}
+
+
+
+
+
+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::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(char a_WindowID)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendWindowClose(a_WindowID);
+}
+
+
+
+
+
+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);
+}
+
+
+
+
+
+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)
+{
+	// 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;
+	}
+	if (ch == 0x39)
+	{
+		m_Protocol = new cProtocol132(m_Client);
+		return true;
+	}
+	m_Protocol = new cProtocol125(m_Client);
+	return true;
+}
+
+
+
+
+
+void cProtocolRecognizer::HandleServerPing(void)
+{
+	AString Reply;
+	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()
+	);
+	m_Client->Kick(Reply.c_str());
+}
+
+
+
+
-- 
cgit v1.2.3