1 files changed, 950 insertions, 0 deletions

diff --git a/src/Protocol/Protocol132.cpp b/src/Protocol/Protocol132.cpp
new file mode 100644
index 000000000..d8f450588
--- /dev/null
+++ b/src/Protocol/Protocol132.cpp
@@ -0,0 +1,950 @@
+
+// Protocol132.cpp
+
+// Implements the cProtocol132 class representing the release 1.3.2 protocol (#39)
+
+#include "Globals.h"
+#include "ChunkDataSerializer.h"
+#include "cryptopp/randpool.h"
+#include "Protocol132.h"
+#include "../Root.h"
+#include "../Server.h"
+#include "../World.h"
+#include "../ClientHandle.h"
+#include "../Item.h"
+#include "../Entities/Player.h"
+#include "../Mobs/Monster.h"
+#include "../UI/Window.h"
+#include "../Entities/Pickup.h"
+#include "../WorldStorage/FastNBT.h"
+#include "../StringCompression.h"
+
+
+
+
+
+#define HANDLE_PACKET_READ(Proc, Type, Var) \
+	Type Var; \
+	{ \
+		if (!m_ReceivedData.Proc(Var)) \
+		{ \
+			m_ReceivedData.CheckValid(); \
+			return PARSE_INCOMPLETE; \
+		} \
+		m_ReceivedData.CheckValid(); \
+	}
+
+
+
+
+typedef unsigned char Byte;
+
+
+
+
+
+using namespace CryptoPP;
+
+
+
+
+
+const int MAX_ENC_LEN = 512;  // Maximum size of the encrypted message; should be 128, but who knows...
+
+
+
+
+
+enum
+{
+	PACKET_KEEP_ALIVE            = 0x00,
+	PACKET_LOGIN                 = 0x01,
+	PACKET_ENTITY_EQUIPMENT      = 0x05,
+	PACKET_COMPASS               = 0x06,
+	PACKET_PLAYER_SPAWN          = 0x14,
+	PACKET_COLLECT_PICKUP        = 0x16,
+	PACKET_SPAWN_MOB             = 0x18,
+	PACKET_DESTROY_ENTITIES      = 0x1d,
+	PACKET_CHUNK_DATA            = 0x33,
+	PACKET_BLOCK_CHANGE          = 0x35,
+	PACKET_BLOCK_ACTION          = 0x36,
+	PACKET_BLOCK_BREAK_ANIM      = 0x37,
+	PACKET_SOUND_EFFECT          = 0x3e,
+	PACKET_SOUND_PARTICLE_EFFECT = 0x3d,
+	PACKET_TAB_COMPLETION        = 0xcb,
+	PACKET_LOCALE_VIEW_DISTANCE  = 0xcc,
+	PACKET_CLIENT_STATUSES       = 0xcd,
+	PACKET_ENCRYPTION_KEY_RESP   = 0xfc,
+} ;
+
+
+
+
+
+// Converts a raw 160-bit SHA1 digest into a Java Hex representation
+// According to http://wiki.vg/wiki/index.php?title=Protocol_Encryption&oldid=2802
+static void DigestToJava(byte a_Digest[20], AString & a_Out)
+{
+	bool IsNegative = (a_Digest[0] >= 0x80);
+	if (IsNegative)
+	{
+		// Two's complement:
+		bool carry = true;  // Add one to the whole number
+		for (int i = 19; i >= 0; i--)
+		{
+			a_Digest[i] = ~a_Digest[i];
+			if (carry)
+			{
+				carry = (a_Digest[i] == 0xff);
+				a_Digest[i]++;
+			}
+		}
+	}
+	a_Out.clear();
+	a_Out.reserve(40);
+	for (int i = 0; i < 20; i++)
+	{
+		AppendPrintf(a_Out, "%02x", a_Digest[i]);
+	}
+	while ((a_Out.length() > 0) && (a_Out[0] == '0'))
+	{
+		a_Out.erase(0, 1);
+	}
+	if (IsNegative)
+	{
+		a_Out.insert(0, "-");
+	}
+}
+
+
+
+
+
+/*
+// Self-test the hash formatting for known values:
+// sha1(Notch) : 4ed1f46bbe04bc756bcb17c0c7ce3e4632f06a48
+// sha1(jeb_)  : -7c9d5b0044c130109a5d7b5fb5c317c02b4e28c1
+// sha1(simon) : 88e16a1019277b15d58faf0541e11910eb756f6
+
+class Test
+{
+public:
+	Test(void)
+	{
+		AString DigestNotch, DigestJeb, DigestSimon;
+		byte Digest[20];
+		CryptoPP::SHA1 Checksum;
+		Checksum.Update((const byte *)"Notch", 5);
+		Checksum.Final(Digest);
+		DigestToJava(Digest, DigestNotch);
+		Checksum.Restart();
+		Checksum.Update((const byte *)"jeb_", 4);
+		Checksum.Final(Digest);
+		DigestToJava(Digest, DigestJeb);
+		Checksum.Restart();
+		Checksum.Update((const byte *)"simon", 5);
+		Checksum.Final(Digest);
+		DigestToJava(Digest, DigestSimon);
+		printf("Notch: \"%s\"", DigestNotch.c_str());
+		printf("jeb_: \"%s\"",  DigestJeb.c_str());
+		printf("simon: \"%s\"", DigestSimon.c_str());
+	}
+} test;
+*/
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cProtocol132:
+
+cProtocol132::cProtocol132(cClientHandle * a_Client) :
+	super(a_Client),
+	m_IsEncrypted(false)
+{
+}
+
+
+
+
+
+cProtocol132::~cProtocol132()
+{
+	if (!m_DataToSend.empty())
+	{
+		LOGD("There are %d unsent bytes while deleting cProtocol132", m_DataToSend.size());
+	}
+}
+
+
+
+
+
+void cProtocol132::DataReceived(const char * a_Data, int a_Size)
+{
+	if (m_IsEncrypted)
+	{
+		byte Decrypted[512];
+		while (a_Size > 0)
+		{
+			int NumBytes = (a_Size > sizeof(Decrypted)) ? sizeof(Decrypted) : a_Size;
+			m_Decryptor.ProcessData(Decrypted, (byte *)a_Data, NumBytes);
+			super::DataReceived((const char *)Decrypted, NumBytes);
+			a_Size -= NumBytes;
+			a_Data += NumBytes;
+		}
+	}
+	else
+	{
+		super::DataReceived(a_Data, a_Size);
+	}
+}
+
+
+
+
+
+void cProtocol132::SendBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte (PACKET_BLOCK_ACTION);
+	WriteInt  (a_BlockX);
+	WriteShort((short)a_BlockY);
+	WriteInt  (a_BlockZ);
+	WriteByte (a_Byte1);
+	WriteByte (a_Byte2);
+	WriteShort(a_BlockType);
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendBlockBreakAnim(int a_entityID, int a_BlockX, int a_BlockY, int a_BlockZ, char stage)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte   (PACKET_BLOCK_BREAK_ANIM);
+	WriteInt    (a_entityID);
+	WriteInt    (a_BlockX);
+	WriteInt    (a_BlockY);
+	WriteInt    (a_BlockZ);
+	WriteByte   (stage);
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendBlockChange(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte (PACKET_BLOCK_CHANGE);
+	WriteInt  (a_BlockX);
+	WriteByte ((unsigned char)a_BlockY);
+	WriteInt  (a_BlockZ);
+	WriteShort(a_BlockType);
+	WriteByte (a_BlockMeta);
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendChunkData(int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer)
+{
+	cCSLock Lock(m_CSPacket);
+	
+	// Pre-chunk not used in 1.3.2. Finally.
+
+	// Send the chunk data:
+	AString Serialized = a_Serializer.Serialize(cChunkDataSerializer::RELEASE_1_3_2);
+	WriteByte(PACKET_CHUNK_DATA);
+	WriteInt (a_ChunkX);
+	WriteInt (a_ChunkZ);
+	SendData(Serialized.data(), Serialized.size());
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendCollectPickup(const cPickup & a_Pickup, const cPlayer & a_Player)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte(PACKET_COLLECT_PICKUP);
+	WriteInt (a_Pickup.GetUniqueID());
+	WriteInt (a_Player.GetUniqueID());
+	Flush();
+	
+	// Also send the "pop" sound effect with a somewhat random pitch (fast-random using EntityID ;)
+	SendSoundEffect(
+		"random.pop",
+		(int)(a_Pickup.GetPosX() * 8), (int)(a_Pickup.GetPosY() * 8), (int)(a_Pickup.GetPosZ() * 8),
+		0.5, (float)(0.75 + ((float)((a_Pickup.GetUniqueID() * 23) % 32)) / 64)
+	);
+}
+
+
+
+
+
+void cProtocol132::SendDestroyEntity(const cEntity & a_Entity)
+{
+	if (a_Entity.GetUniqueID() == m_Client->GetPlayer()->GetUniqueID())
+	{
+		// Do not send "destroy self" to the client, the client would crash (FS #254)
+		return;
+	}
+	
+	cCSLock Lock(m_CSPacket);
+	WriteByte(PACKET_DESTROY_ENTITIES);
+	WriteByte(1);  // entity count
+	WriteInt (a_Entity.GetUniqueID());
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte (PACKET_ENTITY_EQUIPMENT);
+	WriteInt  (a_Entity.GetUniqueID());
+	WriteShort(a_SlotNum);
+	WriteItem (a_Item);
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendLogin(const cPlayer & a_Player, const cWorld & a_World)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte  (PACKET_LOGIN);
+	WriteInt   (a_Player.GetUniqueID());  // EntityID of the player
+	WriteString("default");  // Level type
+	WriteByte  ((int)a_Player.GetGameMode());
+	WriteByte  ((Byte)(a_World.GetDimension()));
+	WriteByte  (2);  // TODO: Difficulty
+	WriteByte  (0);  // Unused, used to be world height
+	WriteByte  (8);  // Client list width or something
+	Flush();
+	
+	SendCompass(a_World);
+}
+
+
+
+
+
+void cProtocol132::SendPlayerSpawn(const cPlayer & a_Player)
+{
+	const cItem & HeldItem = a_Player.GetEquippedItem();
+	cCSLock Lock(m_CSPacket);
+	WriteByte	 (PACKET_PLAYER_SPAWN);
+	WriteInt   (a_Player.GetUniqueID());
+	WriteString(a_Player.GetName());
+	WriteInt   ((int)(a_Player.GetPosX() * 32));
+	WriteInt   ((int)(a_Player.GetPosY() * 32));
+	WriteInt   ((int)(a_Player.GetPosZ() * 32));
+	WriteByte  ((char)((a_Player.GetRot().x / 360.f) * 256));
+	WriteByte  ((char)((a_Player.GetRot().y / 360.f) * 256));
+	WriteShort (HeldItem.IsEmpty() ? 0 : HeldItem.m_ItemType);
+	// Player metadata: just use a default metadata value, since the client doesn't like starting without any metadata:
+	WriteByte  (0);  // Index 0, byte (flags)
+	WriteByte  (0);  // Flags, empty
+	WriteByte  (0x7f);  // End of metadata
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte   (PACKET_SOUND_EFFECT);
+	WriteString (a_SoundName);
+	WriteInt    (a_SrcX);
+	WriteInt    (a_SrcY);
+	WriteInt    (a_SrcZ);
+	WriteFloat  (a_Volume);
+	WriteByte   ((char)(a_Pitch * 63.0f));
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendSoundParticleEffect(int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte(PACKET_SOUND_PARTICLE_EFFECT);
+	WriteInt (a_EffectID);
+	WriteInt (a_SrcX);
+	WriteByte(a_SrcY);
+	WriteInt (a_SrcZ);
+	WriteInt (a_Data);
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendSpawnMob(const cMonster & a_Mob)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte   (PACKET_SPAWN_MOB);
+	WriteInt    (a_Mob.GetUniqueID());
+	WriteByte   (a_Mob.GetMobType());
+	WriteVectorI((Vector3i)(a_Mob.GetPosition() * 32));
+	WriteByte   ((Byte)((a_Mob.GetRotation() / 360.f) * 256));
+	WriteByte   ((Byte)((a_Mob.GetPitch() / 360.f) * 256));
+	WriteByte   ((Byte)((a_Mob.GetHeadYaw() / 360.f) * 256));
+	WriteShort  ((short)(a_Mob.GetSpeedX() * 400));
+	WriteShort  ((short)(a_Mob.GetSpeedY() * 400));
+	WriteShort  ((short)(a_Mob.GetSpeedZ() * 400));
+
+	WriteCommonMetadata(a_Mob);
+	WriteMobMetadata(a_Mob);
+	WriteByte(0x7f);
+
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendTabCompletionResults(const AStringVector & a_Results)
+{
+	if (a_Results.empty())
+	{
+		// No results to send
+		return;
+	}
+	
+	AString Serialized(a_Results[0]);
+	for (AStringVector::const_iterator itr = a_Results.begin() + 1, end = a_Results.end(); itr != end; ++itr)
+	{
+		Serialized.push_back(0);
+		Serialized.append(*itr);
+	}  // for itr - a_Results[]
+	
+	cCSLock Lock(m_CSPacket);
+	WriteByte(PACKET_TAB_COMPLETION);
+	WriteString(Serialized);
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendUnloadChunk(int a_ChunkX, int a_ChunkZ)
+{
+	// Unloading the chunk is done by sending a "map chunk" packet
+	// with IncludeInitialize set to true and primary bitmap set to 0:
+	cCSLock Lock(m_CSPacket);
+	WriteByte(PACKET_CHUNK_DATA);
+	WriteInt (a_ChunkX);
+	WriteInt (a_ChunkZ);
+	WriteBool(true);      // IncludeInitialize
+	WriteShort(0);        // Primary bitmap
+	WriteShort(0);        // Add bitmap
+	WriteInt(0);
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendWholeInventory(const cWindow & a_Window)
+{
+	// 1.3.2 requires player inventory slots to be sent as SetSlot packets, 
+	// otherwise it sometimes fails to update the window
+	
+	// Send the entire window:
+	super::SendWholeInventory(a_Window);
+	
+	// Send the player inventory and hotbar:
+	const cInventory & Inventory = m_Client->GetPlayer()->GetInventory();
+	int BaseOffset = a_Window.GetNumSlots() - (cInventory::invNumSlots - cInventory::invInventoryOffset);  // Number of non-inventory slots
+	char WindowID = a_Window.GetWindowID();
+	for (int i = 0; i < cInventory::invInventoryCount; i++)
+	{
+		SendInventorySlot(WindowID, BaseOffset + i, Inventory.GetInventorySlot(i));
+	}  // for i - Inventory[]
+	BaseOffset += cInventory::invInventoryCount;
+	for (int i = 0; i < cInventory::invHotbarCount; i++)
+	{
+		SendInventorySlot(WindowID, BaseOffset + i, Inventory.GetHotbarSlot(i));
+	}  // for i - Hotbar[]
+	
+	// Send even the item being dragged:
+	SendInventorySlot(-1, -1, m_Client->GetPlayer()->GetDraggingItem());
+}
+
+
+
+
+
+AString cProtocol132::GetAuthServerID(void)
+{
+	// http://wiki.vg/wiki/index.php?title=Session&oldid=2615
+	// Server uses SHA1 to mix ServerID, Client secret and server public key together
+	// The mixing is done in StartEncryption, the result is in m_AuthServerID
+	
+	return m_AuthServerID;
+}
+
+
+
+
+
+int cProtocol132::ParsePacket(unsigned char a_PacketType)
+{
+	switch (a_PacketType)
+	{
+		default:                          return super::ParsePacket(a_PacketType);  // off-load previously known packets into cProtocol125
+		case PACKET_CLIENT_STATUSES:      return ParseClientStatuses();
+		case PACKET_ENCRYPTION_KEY_RESP:  return ParseEncryptionKeyResponse();
+		case PACKET_LOCALE_VIEW_DISTANCE: return ParseLocaleViewDistance();
+		case PACKET_TAB_COMPLETION:       return ParseTabCompletion();
+	}
+}
+
+
+
+
+
+int cProtocol132::ParseBlockPlace(void)
+{
+	HANDLE_PACKET_READ(ReadBEInt, int,  PosX);
+	HANDLE_PACKET_READ(ReadByte,  Byte, PosY);
+	HANDLE_PACKET_READ(ReadBEInt, int,  PosZ);
+	HANDLE_PACKET_READ(ReadChar,  char, BlockFace);
+
+	cItem HeldItem;
+	int res = ParseItem(HeldItem);
+	if (res < 0)
+	{
+		return res;
+	}
+	
+	HANDLE_PACKET_READ(ReadChar, char, CursorX);
+	HANDLE_PACKET_READ(ReadChar, char, CursorY);
+	HANDLE_PACKET_READ(ReadChar, char, CursorZ);
+
+	m_Client->HandleRightClick(PosX, PosY, PosZ, BlockFace, CursorX, CursorY, CursorZ, HeldItem);
+	return PARSE_OK;
+}
+
+
+
+
+
+int cProtocol132::ParseHandshake(void)
+{
+	HANDLE_PACKET_READ(ReadByte,            Byte,    ProtocolVersion);
+	HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Username);
+	HANDLE_PACKET_READ(ReadBEUTF16String16, AString, ServerHost);
+	HANDLE_PACKET_READ(ReadBEInt,           int,     ServerPort);
+	m_Username = Username;
+
+	if (!m_Client->HandleHandshake( m_Username ))
+	{
+		return PARSE_OK; // Player is not allowed into the server
+	}
+
+	// Send a 0xFD Encryption Key Request http://wiki.vg/Protocol#0xFD
+	CryptoPP::StringSink sink(m_ServerPublicKey);  // GCC won't allow inline instantiation in the following line, damned temporary refs
+	cRoot::Get()->GetServer()->GetPublicKey().Save(sink);
+	SendEncryptionKeyRequest();
+
+	return PARSE_OK;
+}
+
+
+
+
+
+int cProtocol132::ParseClientStatuses(void)
+{
+	HANDLE_PACKET_READ(ReadByte, byte, Status);
+	if ((Status & 1) == 0)
+	{
+		m_Client->HandleLogin(39, m_Username);
+	}
+	else
+	{
+		m_Client->HandleRespawn();
+	}
+	return PARSE_OK;
+}
+
+
+
+
+
+int cProtocol132::ParseEncryptionKeyResponse(void)
+{
+	HANDLE_PACKET_READ(ReadBEShort, short, EncKeyLength);
+	AString EncKey;
+	if (!m_ReceivedData.ReadString(EncKey, EncKeyLength))
+	{
+		return PARSE_INCOMPLETE;
+	}
+	HANDLE_PACKET_READ(ReadBEShort, short, EncNonceLength);
+	AString EncNonce;
+	if (!m_ReceivedData.ReadString(EncNonce, EncNonceLength))
+	{
+		return PARSE_INCOMPLETE;
+	}
+	if ((EncKeyLength > MAX_ENC_LEN) || (EncNonceLength > MAX_ENC_LEN))
+	{
+		LOGD("Too long encryption");
+		m_Client->Kick("Hacked client");
+		return PARSE_OK;
+	}
+	
+	HandleEncryptionKeyResponse(EncKey, EncNonce);
+	return PARSE_OK;
+}
+
+
+
+
+
+int cProtocol132::ParseLocaleViewDistance(void)
+{
+	HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Locale);
+	HANDLE_PACKET_READ(ReadChar,            char,    ViewDistance);
+	HANDLE_PACKET_READ(ReadChar,            char,    ChatFlags);
+	HANDLE_PACKET_READ(ReadChar,            char,    ClientDifficulty);
+	// TODO: m_Client->HandleLocale(Locale);
+	// TODO: m_Client->HandleViewDistance(ViewDistance);
+	// TODO: m_Client->HandleChatFlags(ChatFlags);
+	// Ignoring client difficulty
+	return PARSE_OK;
+}
+
+
+
+
+
+int cProtocol132::ParseLogin(void)
+{
+	// Login packet not used in 1.3.2
+	return PARSE_ERROR;
+}
+
+
+
+
+
+int cProtocol132::ParsePlayerAbilities(void)
+{
+	HANDLE_PACKET_READ(ReadBool, bool, Flags);
+	HANDLE_PACKET_READ(ReadChar, char, FlyingSpeed);
+	HANDLE_PACKET_READ(ReadChar, char, WalkingSpeed);
+	// TODO: m_Client->HandlePlayerAbilities(...);
+	return PARSE_OK;
+}
+
+
+
+
+
+int cProtocol132::ParseTabCompletion(void)
+{
+	HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Text);
+	m_Client->HandleTabCompletion(Text);
+	return PARSE_OK;
+}
+
+
+
+
+
+void cProtocol132::SendData(const char * a_Data, int a_Size)
+{
+	m_DataToSend.append(a_Data, a_Size);
+}
+
+
+
+
+
+void cProtocol132::Flush(void)
+{
+	ASSERT(m_CSPacket.IsLockedByCurrentThread());  // Did all packets lock the CS properly?
+	
+	if (m_DataToSend.empty())
+	{
+		LOGD("Flushing empty");
+		return;
+	}
+	const char * a_Data = m_DataToSend.data();
+	int a_Size = m_DataToSend.size();
+	if (m_IsEncrypted)
+	{
+		byte Encrypted[8192];  // Larger buffer, we may be sending lots of data (chunks)
+		while (a_Size > 0)
+		{
+			int NumBytes = (a_Size > sizeof(Encrypted)) ? sizeof(Encrypted) : a_Size;
+			m_Encryptor.ProcessData(Encrypted, (byte *)a_Data, NumBytes);
+			super::SendData((const char *)Encrypted, NumBytes);
+			a_Size -= NumBytes;
+			a_Data += NumBytes;
+		}
+	}
+	else
+	{
+		super::SendData(a_Data, a_Size);
+	}
+	m_DataToSend.clear();
+}
+
+
+
+
+
+void cProtocol132::WriteItem(const cItem & a_Item)
+{
+	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())
+	{
+		WriteShort(-1);
+		return;
+	}
+	
+	WriteShort(ItemType);
+	WriteByte (a_Item.m_ItemCount);
+	WriteShort(a_Item.m_ItemDamage);
+	
+	if (a_Item.m_Enchantments.IsEmpty())
+	{
+		WriteShort(-1);
+		return;
+	}
+
+	// Send the enchantments:
+	cFastNBTWriter Writer;
+	const char * TagName = (a_Item.m_ItemType == E_ITEM_BOOK) ? "StoredEnchantments" : "ench";
+	a_Item.m_Enchantments.WriteToNBTCompound(Writer, TagName);
+	Writer.Finish();
+	AString Compressed;
+	CompressStringGZIP(Writer.GetResult().data(), Writer.GetResult().size(), Compressed);
+	WriteShort(Compressed.size());
+	SendData(Compressed.data(), Compressed.size());
+}
+
+
+
+
+
+int cProtocol132::ParseItem(cItem & a_Item)
+{
+	HANDLE_PACKET_READ(ReadBEShort, short, ItemType);
+
+	if (ItemType <= -1)
+	{
+		a_Item.Empty();
+		return PARSE_OK;
+	}
+	a_Item.m_ItemType = ItemType;
+
+	HANDLE_PACKET_READ(ReadChar,    char,  ItemCount);
+	HANDLE_PACKET_READ(ReadBEShort, short, ItemDamage);
+	a_Item.m_ItemCount  = ItemCount;
+	a_Item.m_ItemDamage = ItemDamage;
+	if (ItemCount <= 0)
+	{
+		a_Item.Empty();
+	}
+
+	HANDLE_PACKET_READ(ReadBEShort, short, MetadataLength);
+	if (MetadataLength <= 0)
+	{
+		return PARSE_OK;
+	}
+		
+	// Read the metadata
+	AString Metadata;
+	Metadata.resize(MetadataLength);
+	if (!m_ReceivedData.ReadBuf((void *)Metadata.data(), MetadataLength))
+	{
+		return PARSE_INCOMPLETE;
+	}
+	
+	return ParseItemMetadata(a_Item, Metadata);
+}
+
+
+
+
+
+int cProtocol132::ParseItemMetadata(cItem & a_Item, const AString & a_Metadata)
+{
+	// Uncompress the GZIPped data:
+	AString Uncompressed;
+	if (UncompressStringGZIP(a_Metadata.data(), a_Metadata.size(), Uncompressed) != Z_OK)
+	{
+		AString HexDump;
+		CreateHexDump(HexDump, a_Metadata.data(), a_Metadata.size(), 16);
+		LOG("Cannot unGZIP item metadata:\n%s", HexDump.c_str());
+		return PARSE_ERROR;
+	}
+	
+	// Parse into NBT:
+	cParsedNBT NBT(Uncompressed.data(), Uncompressed.size());
+	if (!NBT.IsValid())
+	{
+		AString HexDump;
+		CreateHexDump(HexDump, Uncompressed.data(), Uncompressed.size(), 16);
+		LOG("Cannot parse NBT item metadata:\n%s", HexDump.c_str());
+		return PARSE_ERROR;
+	}
+	
+	// Load enchantments from the NBT:
+	for (int tag = NBT.GetFirstChild(NBT.GetRoot()); tag >= 0; tag = NBT.GetNextSibling(tag))
+	{
+		if (
+			(NBT.GetType(tag) == TAG_List) &&
+			(
+				(NBT.GetName(tag) == "ench") ||
+				(NBT.GetName(tag) == "StoredEnchantments")
+			)
+		)
+		{
+			a_Item.m_Enchantments.ParseFromNBT(NBT, tag);
+		}
+	}
+	
+	return PARSE_OK;
+}
+
+
+
+
+
+void cProtocol132::SendCompass(const cWorld & a_World)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte(PACKET_COMPASS);
+	WriteInt((int)(a_World.GetSpawnX()));
+	WriteInt((int)(a_World.GetSpawnY()));
+	WriteInt((int)(a_World.GetSpawnZ()));
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::SendEncryptionKeyRequest(void)
+{
+	cCSLock Lock(m_CSPacket);
+	WriteByte((char)0xfd);
+	WriteString(cRoot::Get()->GetServer()->GetServerID());
+	WriteShort((short)m_ServerPublicKey.size());
+	SendData(m_ServerPublicKey.data(), m_ServerPublicKey.size());
+	WriteShort(4);
+	WriteInt((int)(intptr_t)this);  // Using 'this' as the cryptographic nonce, so that we don't have to generate one each time :)
+	Flush();
+}
+
+
+
+
+
+void cProtocol132::HandleEncryptionKeyResponse(const AString & a_EncKey, const AString & a_EncNonce)
+{
+	// Decrypt EncNonce using privkey
+	RSAES<PKCS1v15>::Decryptor rsaDecryptor(cRoot::Get()->GetServer()->GetPrivateKey());
+	time_t CurTime = time(NULL);
+	CryptoPP::RandomPool rng;
+	rng.Put((const byte *)&CurTime, sizeof(CurTime));
+	byte DecryptedNonce[MAX_ENC_LEN];
+	DecodingResult res = rsaDecryptor.Decrypt(rng, (const byte *)a_EncNonce.data(), a_EncNonce.size(), DecryptedNonce);
+	if (!res.isValidCoding || (res.messageLength != 4))
+	{
+		LOGD("Bad nonce length");
+		m_Client->Kick("Hacked client");
+		return;
+	}
+	if (ntohl(*((int *)DecryptedNonce)) != (unsigned)(uintptr_t)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(rng, (const byte *)a_EncKey.data(), a_EncKey.size(), DecryptedKey);
+	if (!res.isValidCoding || (res.messageLength != 16))
+	{
+		LOGD("Bad key length");
+		m_Client->Kick("Hacked client");
+		return;
+	}
+	
+	{
+		// Send encryption key response:
+		cCSLock Lock(m_CSPacket);
+		WriteByte((char)0xfc);
+		WriteShort(0);
+		WriteShort(0);
+		Flush();
+	}
+	
+	StartEncryption(DecryptedKey);
+	return;
+}
+
+
+
+
+
+void cProtocol132::StartEncryption(const byte * a_Key)
+{
+	m_Encryptor.SetKey(a_Key, 16, MakeParameters(Name::IV(), ConstByteArrayParameter(a_Key, 16))(Name::FeedbackSize(), 1));
+	m_Decryptor.SetKey(a_Key, 16, MakeParameters(Name::IV(), ConstByteArrayParameter(a_Key, 16))(Name::FeedbackSize(), 1));
+	m_IsEncrypted = true;
+	
+	// Prepare the m_AuthServerID:
+	CryptoPP::SHA1 Checksum;
+	AString ServerID = cRoot::Get()->GetServer()->GetServerID();
+	Checksum.Update((const byte *)ServerID.c_str(), ServerID.length());
+	Checksum.Update(a_Key, 16);
+	Checksum.Update((const byte *)m_ServerPublicKey.c_str(), m_ServerPublicKey.length());
+	byte Digest[20];
+	Checksum.Final(Digest);
+	DigestToJava(Digest, m_AuthServerID);
+}
+
+
+
+