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authorHowaner <franzi.moos@googlemail.com>2014-09-04 00:29:36 +0200
committerHowaner <franzi.moos@googlemail.com>2014-09-04 00:29:36 +0200
commit157f1c6688db8abe72c93a292f43d5a04040e0a4 (patch)
tree6bc75ef3703cd2cbbaeba3c6cb115fed87b62794 /src/Protocol
parentAnvil: switched inflate to stream mode. (diff)
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Diffstat (limited to 'src/Protocol')
-rw-r--r--src/Protocol/CMakeLists.txt2
-rw-r--r--src/Protocol/Protocol17x.cpp6
-rw-r--r--src/Protocol/Protocol17x.h14
-rw-r--r--src/Protocol/Protocol18x.cpp385
-rw-r--r--src/Protocol/Protocol18x.h76
-rw-r--r--src/Protocol/ProtocolRecognizer.cpp25
-rw-r--r--src/Protocol/ProtocolRecognizer.h1
7 files changed, 502 insertions, 7 deletions
diff --git a/src/Protocol/CMakeLists.txt b/src/Protocol/CMakeLists.txt
index 1ba66ff1f..5426c58fa 100644
--- a/src/Protocol/CMakeLists.txt
+++ b/src/Protocol/CMakeLists.txt
@@ -14,6 +14,7 @@ SET (SRCS
Protocol15x.cpp
Protocol16x.cpp
Protocol17x.cpp
+ Protocol18x.cpp
ProtocolRecognizer.cpp)
SET (HDRS
@@ -27,6 +28,7 @@ SET (HDRS
Protocol15x.h
Protocol16x.h
Protocol17x.h
+ Protocol18x.h
ProtocolRecognizer.h)
if(NOT MSVC)
diff --git a/src/Protocol/Protocol17x.cpp b/src/Protocol/Protocol17x.cpp
index 1091b877f..00b115c8f 100644
--- a/src/Protocol/Protocol17x.cpp
+++ b/src/Protocol/Protocol17x.cpp
@@ -1,10 +1,12 @@
+
// Protocol17x.cpp
/*
Implements the 1.7.x protocol classes:
- cProtocol172
- release 1.7.2 protocol (#4)
-(others may be added later in the future for the 1.7 release series)
+ - cProtocol176
+ - release 1.7.6 protocol (#5)
*/
#include "Globals.h"
@@ -1710,7 +1712,7 @@ bool cProtocol172::HandlePacket(cByteBuffer & a_ByteBuffer, UInt32 a_PacketType)
void cProtocol172::HandlePacketStatusPing(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEInt64, Int64, Timestamp);
-
+
cPacketizer Pkt(*this, 0x01); // Ping packet
Pkt.WriteInt64(Timestamp);
}
diff --git a/src/Protocol/Protocol17x.h b/src/Protocol/Protocol17x.h
index ccfa19eb6..ec948e8a1 100644
--- a/src/Protocol/Protocol17x.h
+++ b/src/Protocol/Protocol17x.h
@@ -5,7 +5,8 @@
Declares the 1.7.x protocol classes:
- cProtocol172
- release 1.7.2 protocol (#4)
-(others may be added later in the future for the 1.7 release series)
+ - cProtocol176
+ - release 1.7.6 protocol (#5)
*/
@@ -198,6 +199,11 @@ protected:
{
m_Out.WriteVarUTF8String(a_Value);
}
+
+ void WritePosition(const Vector3i a_Position)
+ {
+ WriteInt64(((Int64)a_Position.x & 0x3FFFFFF) << 38 | ((Int64)a_Position.y & 0xFFF) << 26 | ((Int64)a_Position.z & 0x3FFFFFF));
+ }
void WriteBuf(const char * a_Data, size_t a_Size)
{
@@ -258,12 +264,12 @@ protected:
bool HandlePacket(cByteBuffer & a_ByteBuffer, UInt32 a_PacketType);
// Packet handlers while in the Status state (m_State == 1):
- void HandlePacketStatusPing (cByteBuffer & a_ByteBuffer);
+ void HandlePacketStatusPing(cByteBuffer & a_ByteBuffer);
virtual void HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer);
// Packet handlers while in the Login state (m_State == 2):
- void HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffer);
- void HandlePacketLoginStart (cByteBuffer & a_ByteBuffer);
+ virtual void HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffer);
+ virtual void HandlePacketLoginStart(cByteBuffer & a_ByteBuffer);
// Packet handlers while in the Game state (m_State == 3):
void HandlePacketAnimation (cByteBuffer & a_ByteBuffer);
diff --git a/src/Protocol/Protocol18x.cpp b/src/Protocol/Protocol18x.cpp
new file mode 100644
index 000000000..0a455c70e
--- /dev/null
+++ b/src/Protocol/Protocol18x.cpp
@@ -0,0 +1,385 @@
+
+// Protocol18x.cpp
+
+/*
+Implements the 1.8.x protocol classes:
+ - cProtocol180
+ - release 1.8.0 protocol (#47)
+(others may be added later in the future for the 1.8 release series)
+*/
+
+#include "Globals.h"
+#include "Bindings/PluginManager.h"
+#include "json/json.h"
+#include "Protocol18x.h"
+
+#include "../ClientHandle.h"
+#include "../CompositeChat.h"
+#include "../Root.h"
+#include "../Server.h"
+#include "../World.h"
+
+#include "../Entities/Player.h"
+
+class cProtocol176;
+
+
+
+
+
+const int MAX_ENC_LEN = 512; // Maximum size of the encrypted message; should be 128, but who knows...
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cProtocol180:
+
+cProtocol180::cProtocol180(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) :
+ super(a_Client, a_ServerAddress, a_ServerPort, a_State)
+{
+}
+
+
+
+
+
+void cProtocol180::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, 0x23); // Block Change packet
+ Pkt.WritePosition(Vector3i(a_BlockX, a_BlockY, a_BlockZ));
+
+ UInt32 Block = ((UInt32)a_BlockType << 4) | ((UInt32)a_BlockMeta & 15);
+ Pkt.WriteVarInt(Block);
+}
+
+
+
+
+
+void cProtocol180::SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes)
+{
+ ASSERT(m_State == 3); // In game mode?
+
+ cPacketizer Pkt(*this, 0x22); // Multi Block Change packet
+ Pkt.WriteInt(a_ChunkX);
+ Pkt.WriteInt(a_ChunkZ);
+ Pkt.WriteVarInt((UInt32)a_Changes.size());
+ for (sSetBlockVector::const_iterator itr = a_Changes.begin(), end = a_Changes.end(); itr != end; ++itr)
+ {
+ short Coords = itr->y | (itr->z << 8) | (itr->x << 12);
+ Pkt.WriteShort(Coords);
+
+ UInt32 Block = ((UInt32)itr->BlockType << 4) | ((UInt32)itr->BlockMeta & 15);
+ Pkt.WriteVarInt(Block);
+ } // for itr - a_Changes[]
+}
+
+
+
+
+
+void cProtocol180::SendChat(const AString & a_Message)
+{
+ ASSERT(m_State == 3); // In game mode?
+
+ cPacketizer Pkt(*this, 0x02); // Chat Message packet
+ Pkt.WriteString(Printf("{\"text\":\"%s\"}", EscapeString(a_Message).c_str()));
+ Pkt.WriteChar(0);
+}
+
+
+
+
+
+void cProtocol180::SendChat(const cCompositeChat & a_Message)
+{
+ ASSERT(m_State == 3); // In game mode?
+
+ // Compose the complete Json string to send:
+ Json::Value msg;
+ cWorld * World = m_Client->GetPlayer()->GetWorld();
+ msg["text"] = cClientHandle::FormatMessageType((World == NULL) ? false : World->ShouldUseChatPrefixes(), a_Message.GetMessageType(), a_Message.GetAdditionalMessageTypeData()); // The client crashes without this field being present
+ const cCompositeChat::cParts & Parts = a_Message.GetParts();
+ for (cCompositeChat::cParts::const_iterator itr = Parts.begin(), end = Parts.end(); itr != end; ++itr)
+ {
+ Json::Value Part;
+ switch ((*itr)->m_PartType)
+ {
+ case cCompositeChat::ptText:
+ {
+ Part["text"] = (*itr)->m_Text;
+ AddChatPartStyle(Part, (*itr)->m_Style);
+ break;
+ }
+
+ case cCompositeChat::ptClientTranslated:
+ {
+ const cCompositeChat::cClientTranslatedPart & p = (const cCompositeChat::cClientTranslatedPart &)**itr;
+ Part["translate"] = p.m_Text;
+ Json::Value With;
+ for (AStringVector::const_iterator itrW = p.m_Parameters.begin(), endW = p.m_Parameters.end(); itrW != endW; ++itr)
+ {
+ With.append(*itrW);
+ }
+ if (!p.m_Parameters.empty())
+ {
+ Part["with"] = With;
+ }
+ AddChatPartStyle(Part, p.m_Style);
+ break;
+ }
+
+ case cCompositeChat::ptUrl:
+ {
+ const cCompositeChat::cUrlPart & p = (const cCompositeChat::cUrlPart &)**itr;
+ Part["text"] = p.m_Text;
+ Json::Value Url;
+ Url["action"] = "open_url";
+ Url["value"] = p.m_Url;
+ Part["clickEvent"] = Url;
+ AddChatPartStyle(Part, p.m_Style);
+ break;
+ }
+
+ case cCompositeChat::ptSuggestCommand:
+ case cCompositeChat::ptRunCommand:
+ {
+ const cCompositeChat::cCommandPart & p = (const cCompositeChat::cCommandPart &)**itr;
+ Part["text"] = p.m_Text;
+ Json::Value Cmd;
+ Cmd["action"] = (p.m_PartType == cCompositeChat::ptRunCommand) ? "run_command" : "suggest_command";
+ Cmd["value"] = p.m_Command;
+ Part["clickEvent"] = Cmd;
+ AddChatPartStyle(Part, p.m_Style);
+ break;
+ }
+
+ case cCompositeChat::ptShowAchievement:
+ {
+ const cCompositeChat::cShowAchievementPart & p = (const cCompositeChat::cShowAchievementPart &)**itr;
+ Part["translate"] = "chat.type.achievement";
+
+ Json::Value Ach;
+ Ach["action"] = "show_achievement";
+ Ach["value"] = p.m_Text;
+
+ Json::Value AchColourAndName;
+ AchColourAndName["color"] = "green";
+ AchColourAndName["translate"] = p.m_Text;
+ AchColourAndName["hoverEvent"] = Ach;
+
+ Json::Value Extra;
+ Extra.append(AchColourAndName);
+
+ Json::Value Name;
+ Name["text"] = p.m_PlayerName;
+
+ Json::Value With;
+ With.append(Name);
+ With.append(Extra);
+
+ Part["with"] = With;
+ AddChatPartStyle(Part, p.m_Style);
+ break;
+ }
+ }
+ msg["extra"].append(Part);
+ } // for itr - Parts[]
+
+ // Send the message to the client:
+ cPacketizer Pkt(*this, 0x02);
+ Pkt.WriteString(msg.toStyledString());
+ Pkt.WriteChar(0);
+}
+
+
+
+
+
+void cProtocol180::SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item)
+{
+ ASSERT(m_State == 3); // In game mode?
+
+ cPacketizer Pkt(*this, 0x04); // Entity Equipment packet
+ Pkt.WriteVarInt((UInt32)a_Entity.GetUniqueID());
+ Pkt.WriteShort(a_SlotNum);
+ Pkt.WriteItem(a_Item);
+}
+
+
+
+
+
+void cProtocol180::SendLogin(const cPlayer & a_Player, const cWorld & a_World)
+{
+ // Send the Join Game packet:
+ {
+ cServer * Server = cRoot::Get()->GetServer();
+ cPacketizer Pkt(*this, 0x01); // Join Game packet
+ Pkt.WriteInt(a_Player.GetUniqueID());
+ Pkt.WriteByte((Byte)a_Player.GetEffectiveGameMode() | (Server->IsHardcore() ? 0x08 : 0)); // Hardcore flag bit 4
+ Pkt.WriteChar((char)a_World.GetDimension());
+ Pkt.WriteByte(2); // TODO: Difficulty (set to Normal)
+ Pkt.WriteByte(std::min(Server->GetMaxPlayers(), 60));
+ Pkt.WriteString("default"); // Level type - wtf?
+ Pkt.WriteBool(false); // Reduced Debug Info - wtf?
+ }
+ m_LastSentDimension = a_World.GetDimension();
+
+ // Send the spawn position:
+ {
+ cPacketizer Pkt(*this, 0x05); // Spawn Position packet
+ Vector3i Position(a_World.GetSpawnX(), a_World.GetSpawnY(), a_World.GetSpawnZ());
+ Pkt.WritePosition(Position);
+ }
+
+ // Send player abilities:
+ SendPlayerAbilities();
+}
+
+
+
+
+
+void cProtocol180::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
+{
+ cServer * Server = cRoot::Get()->GetServer();
+ AString ServerDescription = Server->GetDescription();
+ int NumPlayers = Server->GetNumPlayers();
+ int MaxPlayers = Server->GetMaxPlayers();
+ AString Favicon = Server->GetFaviconData();
+ cRoot::Get()->GetPluginManager()->CallHookServerPing(*m_Client, ServerDescription, NumPlayers, MaxPlayers, Favicon);
+
+ // Version:
+ Json::Value Version;
+ Version["name"] = "1.8";
+ Version["protocol"] = 47;
+
+ // 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;
+ if (!Favicon.empty())
+ {
+ ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str());
+ }
+
+ Json::StyledWriter Writer;
+ AString Response = Writer.write(ResponseValue);
+
+ cPacketizer Pkt(*this, 0x00); // Response packet
+ Pkt.WriteString(Response);
+}
+
+
+
+
+
+void cProtocol180::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;
+ }
+
+ cServer * Server = cRoot::Get()->GetServer();
+ // If auth is required, then send the encryption request:
+ if (Server->ShouldAuthenticate())
+ {
+ cPacketizer Pkt(*this, 0x01);
+ Pkt.WriteString(Server->GetServerID());
+ const AString & PubKeyDer = Server->GetPublicKeyDER();
+ Pkt.WriteVarInt((short)PubKeyDer.size());
+ Pkt.WriteBuf(PubKeyDer.data(), PubKeyDer.size());
+ Pkt.WriteVarInt(4);
+ Pkt.WriteInt((int)(intptr_t)this); // Using 'this' as the cryptographic nonce, so that we don't have to generate one each time :)
+ m_Client->SetUsername(Username);
+ return;
+ }
+
+ m_Client->HandleLogin(4, Username);
+}
+
+
+
+
+
+void cProtocol180::HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffer)
+{
+ UInt32 EncKeyLength, EncNonceLength;
+ a_ByteBuffer.ReadVarInt(EncKeyLength);
+ AString EncKey;
+ if (!a_ByteBuffer.ReadString(EncKey, EncKeyLength))
+ {
+ return;
+ }
+ a_ByteBuffer.ReadVarInt(EncNonceLength);
+ AString EncNonce;
+ if (!a_ByteBuffer.ReadString(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();
+ Int32 DecryptedNonce[MAX_ENC_LEN / sizeof(Int32)];
+ int res = rsaDecryptor.Decrypt((const Byte *)EncNonce.data(), EncNonce.size(), (Byte *)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]) != (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((const Byte *)EncKey.data(), EncKey.size(), DecryptedKey, sizeof(DecryptedKey));
+ if (res != 16)
+ {
+ LOGD("Bad key length");
+ m_Client->Kick("Hacked client");
+ return;
+ }
+
+ StartEncryption(DecryptedKey);
+ m_Client->HandleLogin(4, m_Client->GetUsername());
+}
+
+
+
+
diff --git a/src/Protocol/Protocol18x.h b/src/Protocol/Protocol18x.h
new file mode 100644
index 000000000..11a376b17
--- /dev/null
+++ b/src/Protocol/Protocol18x.h
@@ -0,0 +1,76 @@
+
+// Protocol18x.h
+
+/*
+Declares the 1.8.x protocol classes:
+ - cProtocol180
+ - release 1.8 protocol (#47)
+(others may be added later in the future for the 1.8 release series)
+*/
+
+
+
+
+
+#pragma once
+
+#include "Protocol.h"
+#include "Protocol17x.h"
+#include "../ByteBuffer.h"
+
+#ifdef _MSC_VER
+ #pragma warning(push)
+ #pragma warning(disable:4127)
+ #pragma warning(disable:4244)
+ #pragma warning(disable:4231)
+ #pragma warning(disable:4189)
+ #pragma warning(disable:4702)
+#endif
+
+#ifdef _MSC_VER
+ #pragma warning(pop)
+#endif
+
+
+
+
+
+// fwd:
+namespace Json
+{
+ class Value;
+}
+
+
+
+
+
+class cProtocol180 :
+ public cProtocol176
+{
+ typedef cProtocol176 super;
+
+public:
+
+ cProtocol180(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State);
+
+ virtual void SendBlockChange(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
+ virtual void SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes) override;
+ virtual void SendChat(const AString & a_Message) override;
+ virtual void SendChat(const cCompositeChat & a_Message) override;
+ virtual void SendPlayerListItem(const cPlayer & a_Player, bool a_IsOnline) override {}
+ virtual void SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item) override;
+ virtual void SendLogin(const cPlayer & a_Player, const cWorld & a_World) override;
+
+protected:
+
+ virtual void HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer) override;
+
+ // Packet handlers while in the Login state (m_State == 2):
+ virtual void HandlePacketLoginStart(cByteBuffer & a_ByteBuffer) override;
+ virtual void HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffer) override;
+} ;
+
+
+
+
diff --git a/src/Protocol/ProtocolRecognizer.cpp b/src/Protocol/ProtocolRecognizer.cpp
index 8b395230a..642e96880 100644
--- a/src/Protocol/ProtocolRecognizer.cpp
+++ b/src/Protocol/ProtocolRecognizer.cpp
@@ -13,6 +13,7 @@
#include "Protocol15x.h"
#include "Protocol16x.h"
#include "Protocol17x.h"
+#include "Protocol18x.h"
#include "../ClientHandle.h"
#include "../Root.h"
#include "../Server.h"
@@ -51,7 +52,7 @@ AString cProtocolRecognizer::GetVersionTextFromInt(int 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_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";
@@ -62,6 +63,7 @@ AString cProtocolRecognizer::GetVersionTextFromInt(int a_ProtocolVersion)
case PROTO_VERSION_1_6_4: return "1.6.4";
case PROTO_VERSION_1_7_2: return "1.7.2";
case PROTO_VERSION_1_7_6: return "1.7.6";
+ case PROTO_VERSION_1_8_0: return "1.8";
}
ASSERT(!"Unknown protocol version");
return Printf("Unknown protocol (%d)", a_ProtocolVersion);
@@ -1016,6 +1018,27 @@ bool cProtocolRecognizer::TryRecognizeLengthedProtocol(UInt32 a_PacketLengthRema
m_Protocol = new cProtocol176(m_Client, ServerAddress, (UInt16)ServerPort, NextState);
return true;
}
+ case PROTO_VERSION_1_8_0:
+ {
+ AString ServerAddress;
+ short ServerPort;
+ UInt32 NextState;
+ if (!m_Buffer.ReadVarUTF8String(ServerAddress))
+ {
+ break;
+ }
+ if (!m_Buffer.ReadBEShort(ServerPort))
+ {
+ break;
+ }
+ if (!m_Buffer.ReadVarInt(NextState))
+ {
+ break;
+ }
+ m_Buffer.CommitRead();
+ m_Protocol = new cProtocol180(m_Client, ServerAddress, (UInt16)ServerPort, NextState);
+ return true;
+ }
}
LOGINFO("Client \"%s\" uses an unsupported protocol (lengthed, version %u)",
m_Client->GetIPString().c_str(), ProtocolVersion
diff --git a/src/Protocol/ProtocolRecognizer.h b/src/Protocol/ProtocolRecognizer.h
index a05aeda70..2e8976a9f 100644
--- a/src/Protocol/ProtocolRecognizer.h
+++ b/src/Protocol/ProtocolRecognizer.h
@@ -51,6 +51,7 @@ public:
// These will be kept "under" the next / latest, because the next and latest are only needed for previous protocols
PROTO_VERSION_1_7_2 = 4,
PROTO_VERSION_1_7_6 = 5,
+ PROTO_VERSION_1_8_0 = 47,
} ;
cProtocolRecognizer(cClientHandle * a_Client);