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-rw-r--r--src/Bindings/ManualBindings.cpp59
-rw-r--r--src/Bindings/Plugin.h1
-rw-r--r--src/Bindings/PluginLua.cpp10
-rw-r--r--src/Bindings/PluginLua.h1
-rw-r--r--src/Bindings/PluginManager.cpp18
-rw-r--r--src/Bindings/PluginManager.h2
-rw-r--r--src/ClientHandle.cpp25
-rw-r--r--src/ClientHandle.h29
-rw-r--r--src/Protocol/CMakeLists.txt2
-rw-r--r--src/Protocol/ForgeHandshake.cpp363
-rw-r--r--src/Protocol/ForgeHandshake.h60
-rw-r--r--src/Protocol/Protocol_1_10.cpp2
-rw-r--r--src/Protocol/Protocol_1_11.cpp2
-rw-r--r--src/Protocol/Protocol_1_12.cpp2
-rw-r--r--src/Protocol/Protocol_1_8.cpp1
-rw-r--r--src/Protocol/Protocol_1_9.cpp49
-rw-r--r--src/Server.cpp50
-rw-r--r--src/Server.h19
18 files changed, 684 insertions, 11 deletions
diff --git a/src/Bindings/ManualBindings.cpp b/src/Bindings/ManualBindings.cpp
index c87e9ed20..ee9cb61e9 100644
--- a/src/Bindings/ManualBindings.cpp
+++ b/src/Bindings/ManualBindings.cpp
@@ -33,6 +33,7 @@
#include "../HTTP/UrlParser.h"
#include "../Item.h"
#include "../LineBlockTracer.h"
+#include "../Server.h"
#include "../Root.h"
#include "../StringCompression.h"
#include "../WebAdmin.h"
@@ -2365,6 +2366,27 @@ static int tolua_cClientHandle_SendPluginMessage(lua_State * L)
+static int tolua_cClientHandle_GetForgeMods(lua_State * L)
+{
+ cLuaState S(L);
+ if (
+ !S.CheckParamSelf("cClientHandle") ||
+ !S.CheckParamEnd(2)
+ )
+ {
+ return 0;
+ }
+ cClientHandle * Client;
+ S.GetStackValue(1, Client);
+
+ S.Push(Client->GetForgeMods());
+ return 1;
+}
+
+
+
+
+
static int tolua_cClientHandle_GetUUID(lua_State * tolua_S)
{
// Check the params:
@@ -3399,6 +3421,37 @@ static int tolua_cRoot_GetFurnaceRecipe(lua_State * tolua_S)
+static int tolua_cServer_RegisterForgeMod(lua_State * a_LuaState)
+{
+ cLuaState L(a_LuaState);
+ if (
+ !L.CheckParamSelf("cServer") ||
+ !L.CheckParamString(2, 3) ||
+ !L.CheckParamNumber(4) ||
+ !L.CheckParamEnd(5)
+ )
+ {
+ return 0;
+ }
+
+ cServer * Server;
+ AString Name, Version;
+ UInt32 Protocol;
+ L.GetStackValues(1, Server, Name, Version, Protocol);
+
+ if (!Server->RegisterForgeMod(Name, Version, Protocol))
+ {
+ tolua_error(L, "duplicate Forge mod name registration", nullptr);
+ return 0;
+ }
+
+ return 0;
+}
+
+
+
+
+
static int tolua_cScoreboard_GetTeamNames(lua_State * L)
{
cLuaState S(L);
@@ -4007,6 +4060,8 @@ void cManualBindings::Bind(lua_State * tolua_S)
tolua_beginmodule(tolua_S, "cClientHandle");
tolua_constant(tolua_S, "MAX_VIEW_DISTANCE", cClientHandle::MAX_VIEW_DISTANCE);
tolua_constant(tolua_S, "MIN_VIEW_DISTANCE", cClientHandle::MIN_VIEW_DISTANCE);
+
+ tolua_function(tolua_S, "GetForgeMods", tolua_cClientHandle_GetForgeMods);
tolua_function(tolua_S, "SendPluginMessage", tolua_cClientHandle_SendPluginMessage);
tolua_function(tolua_S, "GetUUID", tolua_cClientHandle_GetUUID);
tolua_function(tolua_S, "GenerateOfflineUUID", tolua_cClientHandle_GenerateOfflineUUID);
@@ -4164,6 +4219,10 @@ void cManualBindings::Bind(lua_State * tolua_S)
tolua_function(tolua_S, "GetTeamNames", tolua_cScoreboard_GetTeamNames);
tolua_endmodule(tolua_S);
+ tolua_beginmodule(tolua_S, "cServer");
+ tolua_function(tolua_S, "RegisterForgeMod", tolua_cServer_RegisterForgeMod);
+ tolua_endmodule(tolua_S);
+
tolua_beginmodule(tolua_S, "cStringCompression");
tolua_function(tolua_S, "CompressStringZLIB", tolua_CompressStringZLIB);
tolua_function(tolua_S, "UncompressStringZLIB", tolua_UncompressStringZLIB);
diff --git a/src/Bindings/Plugin.h b/src/Bindings/Plugin.h
index 22e8f15e2..fc0e2b4fc 100644
--- a/src/Bindings/Plugin.h
+++ b/src/Bindings/Plugin.h
@@ -69,6 +69,7 @@ public:
virtual bool OnKilled (cEntity & a_Victim, TakeDamageInfo & a_TDI, AString & a_DeathMessage) = 0;
virtual bool OnKilling (cEntity & a_Victim, cEntity * a_Killer, TakeDamageInfo & a_TDI) = 0;
virtual bool OnLogin (cClientHandle & a_Client, UInt32 a_ProtocolVersion, const AString & a_Username) = 0;
+ virtual bool OnLoginForge (cClientHandle & a_Client, const AStringMap & a_Mods) = 0;
virtual bool OnPlayerAnimation (cPlayer & a_Player, int a_Animation) = 0;
virtual bool OnPlayerBreakingBlock (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) = 0;
virtual bool OnPlayerBrokenBlock (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) = 0;
diff --git a/src/Bindings/PluginLua.cpp b/src/Bindings/PluginLua.cpp
index 5af336a95..9105f2555 100644
--- a/src/Bindings/PluginLua.cpp
+++ b/src/Bindings/PluginLua.cpp
@@ -550,6 +550,15 @@ bool cPluginLua::OnLogin(cClientHandle & a_Client, UInt32 a_ProtocolVersion, con
+bool cPluginLua::OnLoginForge(cClientHandle & a_Client, const AStringMap & a_Mods)
+{
+ return CallSimpleHooks(cPluginManager::HOOK_LOGIN_FORGE, &a_Client, a_Mods);
+}
+
+
+
+
+
bool cPluginLua::OnPlayerAnimation(cPlayer & a_Player, int a_Animation)
{
return CallSimpleHooks(cPluginManager::HOOK_PLAYER_ANIMATION, &a_Player, a_Animation);
@@ -1059,6 +1068,7 @@ const char * cPluginLua::GetHookFnName(int a_HookType)
case cPluginManager::HOOK_HANDSHAKE: return "OnHandshake";
case cPluginManager::HOOK_KILLING: return "OnKilling";
case cPluginManager::HOOK_LOGIN: return "OnLogin";
+ case cPluginManager::HOOK_LOGIN_FORGE: return "OnLoginForge";
case cPluginManager::HOOK_PLAYER_BREAKING_BLOCK: return "OnPlayerBreakingBlock";
case cPluginManager::HOOK_PLAYER_BROKEN_BLOCK: return "OnPlayerBrokenBlock";
case cPluginManager::HOOK_PLAYER_EATING: return "OnPlayerEating";
diff --git a/src/Bindings/PluginLua.h b/src/Bindings/PluginLua.h
index 4de5751e7..7904fe115 100644
--- a/src/Bindings/PluginLua.h
+++ b/src/Bindings/PluginLua.h
@@ -90,6 +90,7 @@ public:
virtual bool OnKilled (cEntity & a_Victim, TakeDamageInfo & a_TDI, AString & a_DeathMessage) override;
virtual bool OnKilling (cEntity & a_Victim, cEntity * a_Killer, TakeDamageInfo & a_TDI) override;
virtual bool OnLogin (cClientHandle & a_Client, UInt32 a_ProtocolVersion, const AString & a_Username) override;
+ virtual bool OnLoginForge (cClientHandle & a_Client, const AStringMap & a_Mods) override;
virtual bool OnPlayerAnimation (cPlayer & a_Player, int a_Animation) override;
virtual bool OnPlayerBreakingBlock (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
virtual bool OnPlayerBrokenBlock (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
diff --git a/src/Bindings/PluginManager.cpp b/src/Bindings/PluginManager.cpp
index 1d977fcde..7c4712f0f 100644
--- a/src/Bindings/PluginManager.cpp
+++ b/src/Bindings/PluginManager.cpp
@@ -789,6 +789,24 @@ bool cPluginManager::CallHookLogin(cClientHandle & a_Client, UInt32 a_ProtocolVe
+bool cPluginManager::CallHookLoginForge(cClientHandle & a_Client, AStringMap & a_Mods)
+{
+ FIND_HOOK(HOOK_LOGIN_FORGE)
+ VERIFY_HOOK;
+
+ for (PluginList::iterator itr = Plugins->second.begin(); itr != Plugins->second.end(); ++itr)
+ {
+ if ((*itr)->OnLoginForge(a_Client, a_Mods))
+ {
+ return true;
+ }
+ }
+ return false;
+}
+
+
+
+
bool cPluginManager::CallHookPlayerAnimation(cPlayer & a_Player, int a_Animation)
{
diff --git a/src/Bindings/PluginManager.h b/src/Bindings/PluginManager.h
index f3fc3551a..66f7d290a 100644
--- a/src/Bindings/PluginManager.h
+++ b/src/Bindings/PluginManager.h
@@ -102,6 +102,7 @@ public:
HOOK_KILLED,
HOOK_KILLING,
HOOK_LOGIN,
+ HOOK_LOGIN_FORGE,
HOOK_PLAYER_BREAKING_BLOCK,
HOOK_PLAYER_BROKEN_BLOCK,
HOOK_PLAYER_DESTROYED,
@@ -248,6 +249,7 @@ public:
bool CallHookKilled (cEntity & a_Victim, TakeDamageInfo & a_TDI, AString & a_DeathMessage);
bool CallHookKilling (cEntity & a_Victim, cEntity * a_Killer, TakeDamageInfo & a_TDI);
bool CallHookLogin (cClientHandle & a_Client, UInt32 a_ProtocolVersion, const AString & a_Username);
+ bool CallHookLoginForge (cClientHandle & a_Client, AStringMap & a_Mods);
bool CallHookPlayerAnimation (cPlayer & a_Player, int a_Animation);
bool CallHookPlayerBreakingBlock (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
bool CallHookPlayerBrokenBlock (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
diff --git a/src/ClientHandle.cpp b/src/ClientHandle.cpp
index caa2d8fd8..dbd6d4b4e 100644
--- a/src/ClientHandle.cpp
+++ b/src/ClientHandle.cpp
@@ -64,6 +64,7 @@ float cClientHandle::FASTBREAK_PERCENTAGE;
cClientHandle::cClientHandle(const AString & a_IPString, int a_ViewDistance) :
m_LastSentDimension(dimNotSet),
+ m_ForgeHandshake(this),
m_CurrentViewDistance(a_ViewDistance),
m_RequestedViewDistance(a_ViewDistance),
m_IPString(a_IPString),
@@ -320,7 +321,6 @@ void cClientHandle::Authenticate(const AString & a_Name, const cUUID & a_UUID, c
// Atomically increment player count (in server thread)
cRoot::Get()->GetServer()->PlayerCreated();
- cWorld * World;
{
cCSLock lock(m_CSState);
/*
@@ -351,6 +351,25 @@ void cClientHandle::Authenticate(const AString & a_Name, const cUUID & a_UUID, c
// Send login success (if the protocol supports it):
m_Protocol->SendLoginSuccess();
+ if (m_ForgeHandshake.m_IsForgeClient)
+ {
+ m_ForgeHandshake.BeginForgeHandshake(a_Name, a_UUID, a_Properties);
+ }
+ else
+ {
+ FinishAuthenticate(a_Name, a_UUID, a_Properties);
+ }
+ }
+}
+
+
+
+
+
+void cClientHandle::FinishAuthenticate(const AString & a_Name, const cUUID & a_UUID, const Json::Value & a_Properties)
+{
+ cWorld * World;
+ {
// Spawn player (only serversided, so data is loaded)
m_PlayerPtr = cpp14::make_unique<cPlayer>(m_Self, GetUsername());
m_Player = m_PlayerPtr.get();
@@ -854,6 +873,10 @@ void cClientHandle::HandlePluginMessage(const AString & a_Channel, const AString
{
UnregisterPluginChannels(BreakApartPluginChannels(a_Message));
}
+ else if (a_Channel == "FML|HS")
+ {
+ m_ForgeHandshake.DataReceived(this, a_Message.c_str(), a_Message.size());
+ }
else if (!HasPluginChannel(a_Channel))
{
// Ignore if client sent something but didn't register the channel first
diff --git a/src/ClientHandle.h b/src/ClientHandle.h
index 09188f2ae..4a4898179 100644
--- a/src/ClientHandle.h
+++ b/src/ClientHandle.h
@@ -16,6 +16,7 @@
#include "json/json.h"
#include "ChunkSender.h"
#include "EffectID.h"
+#include "Protocol/ForgeHandshake.h"
#include "UUID.h"
@@ -255,8 +256,26 @@ public: // tolua_export
/** Returns the client brand received in the MC|Brand plugin message or set by a plugin. */
const AString & GetClientBrand(void) const { return m_ClientBrand; }
+ /** Returns the Forge mods installed on the client. */
+ const AStringMap & GetForgeMods(void) const { return m_ForgeMods; }
+
+ /** Returns true if the client is modded with Forge. */
+ bool IsForgeClient(void) const { return m_ForgeHandshake.m_IsForgeClient; }
+
// tolua_end
+ /** Add the Forge mod list to the server ping response. */
+ void ForgeAugmentServerListPing(Json::Value & a_Response)
+ {
+ m_ForgeHandshake.AugmentServerListPing(a_Response);
+ }
+
+ /** Mark a client connection as using Forge. Set by the protocol. */
+ void SetIsForgeClient()
+ {
+ m_ForgeHandshake.m_IsForgeClient = true;
+ }
+
/** Returns true if the client wants the chunk specified to be sent (in m_ChunksToSend) */
bool WantsSendChunk(int a_ChunkX, int a_ChunkZ);
@@ -375,10 +394,17 @@ private:
friend class cServer; // Needs access to SetSelf()
+ friend class cForgeHandshake; // Needs access to FinishAuthenticate()
/** The type used for storing the names of registered plugin channels. */
typedef std::set<AString> cChannels;
+ /** Forge handshake state machine. */
+ cForgeHandshake m_ForgeHandshake;
+
+ /** Forge mods and versions installed on this client. */
+ AStringMap m_ForgeMods;
+
/** The actual view distance used, the minimum of client's requested view distance and world's max view distance. */
int m_CurrentViewDistance;
@@ -526,6 +552,9 @@ private:
float m_BreakProgress;
+ /** Finish logging the user in after authenticating. */
+ void FinishAuthenticate(const AString & a_Name, const cUUID & a_UUID, const Json::Value & a_Properties);
+
/** Returns true if the rate block interactions is within a reasonable limit (bot protection) */
bool CheckBlockInteractionsRate(void);
diff --git a/src/Protocol/CMakeLists.txt b/src/Protocol/CMakeLists.txt
index f21c81f83..00ffeb255 100644
--- a/src/Protocol/CMakeLists.txt
+++ b/src/Protocol/CMakeLists.txt
@@ -5,6 +5,7 @@ include_directories ("${PROJECT_SOURCE_DIR}/../")
SET (SRCS
Authenticator.cpp
ChunkDataSerializer.cpp
+ ForgeHandshake.cpp
MojangAPI.cpp
Packetizer.cpp
Protocol_1_8.cpp
@@ -18,6 +19,7 @@ SET (SRCS
SET (HDRS
Authenticator.h
ChunkDataSerializer.h
+ ForgeHandshake.h
MojangAPI.h
Packetizer.h
Protocol.h
diff --git a/src/Protocol/ForgeHandshake.cpp b/src/Protocol/ForgeHandshake.cpp
new file mode 100644
index 000000000..48b89baf4
--- /dev/null
+++ b/src/Protocol/ForgeHandshake.cpp
@@ -0,0 +1,363 @@
+
+// ForgeHandshake.cpp
+
+// Implements Forge protocol handshaking
+
+#include "Globals.h"
+#include "ForgeHandshake.h"
+#include "json/json.h"
+#include "../Server.h"
+#include "../ByteBuffer.h"
+#include "../Bindings/PluginManager.h"
+#include "../ClientHandle.h"
+#include "../Root.h"
+
+
+/** Discriminator byte values prefixing the FML|HS packets to determine their type. */
+namespace Discriminator
+{
+ static const Int8 ServerHello = 0;
+ static const Int8 ClientHello = 1;
+ static const Int8 ModList = 2;
+ static const Int8 RegistryData = 3;
+ // static const Int8 HandshakeReset = -2;
+ static const Int8 HandshakeAck = -1;
+}
+
+/** Client handshake state phases. */
+namespace ClientPhase
+{
+ static const Int8 WAITINGSERVERDATA = 2;
+ static const Int8 WAITINGSERVERCOMPLETE = 3;
+ static const Int8 PENDINGCOMPLETE = 4;
+ static const Int8 COMPLETE = 5;
+}
+
+/** Server handshake state phases. */
+namespace ServerPhase
+{
+ static const Int8 WAITINGCACK = 2;
+ static const Int8 COMPLETE = 3;
+}
+
+
+
+
+
+cForgeHandshake::cForgeHandshake(cClientHandle *a_Client) :
+ m_IsForgeClient(false),
+ m_Errored(false),
+ m_Client(a_Client)
+{
+}
+
+
+
+
+
+void cForgeHandshake::SetError(const AString & message)
+{
+ LOGD("Forge handshake error: %s", message.c_str());
+ m_Errored = true;
+}
+
+
+
+
+
+void cForgeHandshake::AugmentServerListPing(Json::Value & a_ResponseValue)
+{
+ auto ProtocolVersion = m_Client->GetProtocolVersion();
+ auto & Mods = cRoot::Get()->GetServer()->GetRegisteredForgeMods(ProtocolVersion);
+
+ if (Mods.empty())
+ {
+ return;
+ }
+
+ LOGD("Received server ping from version: %d", ProtocolVersion);
+
+ Json::Value Modinfo;
+ Modinfo["type"] = "FML";
+
+ Json::Value ModList(Json::arrayValue);
+ for (auto & item: Mods)
+ {
+ Json::Value Mod;
+ Mod["modid"] = item.first;
+ Mod["version"] = item.second;
+ ModList.append(Mod);
+ }
+ Modinfo["modList"] = ModList;
+
+ a_ResponseValue["modinfo"] = Modinfo;
+}
+
+
+
+
+
+void cForgeHandshake::BeginForgeHandshake(const AString & a_Name, const cUUID & a_UUID, const Json::Value & a_Properties)
+{
+ ASSERT(m_IsForgeClient);
+
+ m_Name = a_Name;
+ m_UUID = a_UUID;
+ m_Properties = a_Properties;
+
+ static const std::array<AString, 5> Channels{{ "FML|HS", "FML", "FML|MP", "FML", "FORGE" }};
+ AString ChannelsString;
+ for (auto & Channel: Channels)
+ {
+ ChannelsString.append(Channel);
+ ChannelsString.push_back('\0');
+ }
+
+ m_Client->SendPluginMessage("REGISTER", ChannelsString);
+ SendServerHello();
+}
+
+
+
+
+
+void cForgeHandshake::SendServerHello()
+{
+ AString Message;
+ cByteBuffer Buf(6);
+ // Discriminator | Byte | Always 0 for ServerHello
+ Buf.WriteBEInt8(Discriminator::ServerHello);
+ // FML protocol Version | Byte | Determined from NetworkRegistery. Currently 2.
+ Buf.WriteBEInt8(2);
+ // Dimension TODO
+ Buf.WriteBEInt32(0);
+ Buf.ReadAll(Message);
+
+ m_Client->SendPluginMessage("FML|HS", Message);
+}
+
+
+
+
+
+AStringMap cForgeHandshake::ParseModList(const char * a_Data, size_t a_Size)
+{
+ AStringMap Mods;
+
+ if (a_Size < 4)
+ {
+ SetError(Printf("ParseModList invalid packet, missing length (size = " SIZE_T_FMT ")", a_Size));
+ return Mods;
+ }
+
+ cByteBuffer Buf(a_Size);
+ Buf.Write(a_Data, a_Size);
+ UInt32 NumMods;
+ if (!Buf.ReadVarInt32(NumMods))
+ {
+ SetError("ParseModList failed to read mod count");
+ return Mods;
+ }
+
+ for (UInt32 i = 0; i < NumMods; ++i)
+ {
+ AString Name, Version;
+ if (!Buf.ReadVarUTF8String(Name))
+ {
+ SetError(Printf("ParseModList failed to read mod name at i = %d", i));
+ break;
+ }
+ if (!Buf.ReadVarUTF8String(Version))
+ {
+ SetError(Printf("ParseModList failed to read mod version at i = %d", i));
+ break;
+ }
+ Mods.insert({Name, Version});
+ }
+
+ return Mods;
+}
+
+
+
+
+void cForgeHandshake::HandleClientHello(cClientHandle * a_Client, const char * a_Data, size_t a_Size)
+{
+ if (a_Size == 2)
+ {
+ int FmlProtocolVersion = a_Data[1];
+ LOGD("Received ClientHello with FML protocol version %d", FmlProtocolVersion);
+ if (FmlProtocolVersion != 2)
+ {
+ SetError(Printf("Unsupported FML client protocol version received in ClientHello: %d", FmlProtocolVersion));
+ }
+ }
+ else
+ {
+ SetError(Printf("Received unexpected length of ClientHello: " SIZE_T_FMT, a_Size));
+ }
+}
+
+
+
+
+void cForgeHandshake::HandleModList(cClientHandle * a_Client, const char * a_Data, size_t a_Size)
+{
+ LOGD("Received ModList");
+
+ auto ClientMods = ParseModList(a_Data + 1, a_Size - 1);
+ AString ClientModsString;
+ for (auto & item: ClientMods)
+ {
+ AppendPrintf(ClientModsString, "%s@%s, ", item.first.c_str(), item.second.c_str());
+ }
+
+ LOG("Client connected with " SIZE_T_FMT " mods: %s", ClientMods.size(), ClientModsString.c_str());
+
+ m_Client->m_ForgeMods = ClientMods;
+
+ // Let the plugins know about this event, they may refuse the player:
+ if (cRoot::Get()->GetPluginManager()->CallHookLoginForge(*a_Client, ClientMods))
+ {
+ SetError("Modded client refused by plugin");
+ return;
+ }
+
+ // Send server ModList
+
+ // Send server-side Forge mods registered by plugins
+ const auto & ServerMods = m_Client->GetForgeMods();
+
+ const auto ModCount = ServerMods.size();
+
+ cByteBuffer Buf(256 * ModCount);
+
+ Buf.WriteBEInt8(Discriminator::ModList);
+ Buf.WriteVarInt32(static_cast<UInt32>(ModCount));
+ for (const auto & item: ServerMods)
+ {
+ Buf.WriteVarUTF8String(item.first); // name
+ Buf.WriteVarUTF8String(item.second); // version
+ }
+ AString ServerModList;
+ Buf.ReadAll(ServerModList);
+
+ m_Client->SendPluginMessage("FML|HS", ServerModList);
+}
+
+
+
+
+void cForgeHandshake::HandleHandshakeAck(cClientHandle * a_Client, const char * a_Data, size_t a_Size)
+{
+ if (a_Size != 2)
+ {
+ SetError(Printf("Unexpected HandshakeAck packet length: " SIZE_T_FMT "", a_Size));
+ return;
+ }
+
+ auto Phase = a_Data[1];
+ LOGD("Received client HandshakeAck with phase = %d", Phase);
+
+ switch (Phase)
+ {
+ case ClientPhase::WAITINGSERVERDATA:
+ {
+ cByteBuffer Buf(1024);
+ Buf.WriteBEInt8(Discriminator::RegistryData);
+
+ // TODO: send real registry data
+ bool HasMore = false;
+ AString RegistryName = "potions";
+ UInt32 NumIDs = 0;
+ UInt32 NumSubstitutions = 0;
+ UInt32 NumDummies = 0;
+
+ Buf.WriteBool(HasMore);
+ Buf.WriteVarUTF8String(RegistryName);
+ Buf.WriteVarInt32(NumIDs);
+ Buf.WriteVarInt32(NumSubstitutions);
+ Buf.WriteVarInt32(NumDummies);
+
+ AString RegistryData;
+ Buf.ReadAll(RegistryData);
+ m_Client->SendPluginMessage("FML|HS", RegistryData);
+ break;
+ }
+
+ case ClientPhase::WAITINGSERVERCOMPLETE:
+ {
+ LOGD("Client finished receiving registry data; acknowledging");
+
+ AString Ack;
+ Ack.push_back(Discriminator::HandshakeAck);
+ Ack.push_back(ServerPhase::WAITINGCACK);
+ m_Client->SendPluginMessage("FML|HS", Ack);
+ break;
+ }
+
+ case ClientPhase::PENDINGCOMPLETE:
+ {
+ LOGD("Client is pending completion; sending complete ack");
+
+ AString Ack;
+ Ack.push_back(Discriminator::HandshakeAck);
+ Ack.push_back(ServerPhase::COMPLETE);
+ m_Client->SendPluginMessage("FML|HS", Ack);
+
+ break;
+ }
+
+ case ClientPhase::COMPLETE:
+ {
+ // Now finish logging in
+ m_Client->FinishAuthenticate(m_Name, m_UUID, m_Properties);
+ break;
+ }
+
+ default:
+ {
+ SetError(Printf("Received unknown phase in Forge handshake acknowledgement: %d", Phase));
+ break;
+ }
+ }
+}
+
+
+
+
+
+void cForgeHandshake::DataReceived(cClientHandle * a_Client, const char * a_Data, size_t a_Size)
+{
+ if (!m_IsForgeClient)
+ {
+ SetError(Printf("Received unexpected Forge data from non-Forge client (" SIZE_T_FMT " bytes)", a_Size));
+ return;
+ }
+ if (m_Errored)
+ {
+ LOGD("Received unexpected Forge data when in errored state, ignored");
+ return;
+ }
+
+ if (a_Size <= 1)
+ {
+ SetError(Printf("Received unexpectedly short Forge data (" SIZE_T_FMT " bytes)", a_Size));
+ return;
+ }
+
+ auto Discriminator = a_Data[0];
+
+ switch (Discriminator)
+ {
+ case Discriminator::ClientHello: HandleClientHello(a_Client, a_Data, a_Size); break;
+ case Discriminator::ModList: HandleModList(a_Client, a_Data, a_Size); break;
+ case Discriminator::HandshakeAck: HandleHandshakeAck(a_Client, a_Data, a_Size); break;
+
+ default:
+ {
+ SetError(Printf("Unexpected Forge packet %d received", Discriminator));
+ return;
+ }
+ }
+}
diff --git a/src/Protocol/ForgeHandshake.h b/src/Protocol/ForgeHandshake.h
new file mode 100644
index 000000000..f7be9e958
--- /dev/null
+++ b/src/Protocol/ForgeHandshake.h
@@ -0,0 +1,60 @@
+
+// ForgeHandshake.h
+
+// Implements Forge protocol handshaking
+
+#pragma once
+
+#include <stddef.h>
+#include "UUID.h"
+#include "json/json.h"
+
+// fwd:
+class cClientHandle;
+
+
+
+
+
+class cForgeHandshake
+{
+public:
+ /** True if the client advertised itself as a Forge client. */
+ bool m_IsForgeClient;
+
+ cForgeHandshake(cClientHandle * client);
+
+ /** Add the registered Forge mods to the server ping list packet. */
+ void AugmentServerListPing(Json::Value & ResponseValue);
+
+ /** Begin the Forge Modloader Handshake (FML|HS) sequence. */
+ void BeginForgeHandshake(const AString & a_Name, const cUUID & a_UUID, const Json::Value & a_Properties);
+
+ /** Send the ServerHello packet in the Forge handshake. */
+ void SendServerHello();
+
+ /** Process received data from the client advancing the Forge handshake. */
+ void DataReceived(cClientHandle * a_Client, const char * a_Data, size_t a_Size);
+
+private:
+ /** True if the Forge handshake is in an errored state. */
+ bool m_Errored;
+
+ /** The client handle undergoing this Forge handshake. */
+ cClientHandle * m_Client;
+
+ /** Values saved from BeginForgeHandshake() for continuing the normal handshake after Forge completes. */
+ AString m_Name;
+ cUUID m_UUID;
+ Json::Value m_Properties;
+
+ void HandleClientHello(cClientHandle * a_Client, const char * a_Data, size_t a_Size);
+ void HandleModList(cClientHandle * a_Client, const char * a_Data, size_t a_Size);
+ void HandleHandshakeAck(cClientHandle * a_Client, const char * a_Data, size_t a_Size);
+
+ /** Set errored state to prevent further handshake message processing. */
+ void SetError(const AString & message);
+
+ /** Parse the client ModList packet of installed Forge mods and versions. */
+ AStringMap ParseModList(const char * a_Data, size_t a_Size);
+};
diff --git a/src/Protocol/Protocol_1_10.cpp b/src/Protocol/Protocol_1_10.cpp
index 67b76872a..7f86d4bdc 100644
--- a/src/Protocol/Protocol_1_10.cpp
+++ b/src/Protocol/Protocol_1_10.cpp
@@ -15,6 +15,7 @@ Implements the 1.10 protocol classes:
#include "../Root.h"
#include "../Server.h"
+#include "../ClientHandle.h"
#include "../WorldStorage/FastNBT.h"
@@ -346,6 +347,7 @@ void cProtocol_1_10_0::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
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());
diff --git a/src/Protocol/Protocol_1_11.cpp b/src/Protocol/Protocol_1_11.cpp
index c562503bd..b9b6e9ac3 100644
--- a/src/Protocol/Protocol_1_11.cpp
+++ b/src/Protocol/Protocol_1_11.cpp
@@ -586,6 +586,7 @@ void cProtocol_1_11_0::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
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());
@@ -1209,6 +1210,7 @@ void cProtocol_1_11_1::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
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());
diff --git a/src/Protocol/Protocol_1_12.cpp b/src/Protocol/Protocol_1_12.cpp
index 43ab682eb..a8e38a4e0 100644
--- a/src/Protocol/Protocol_1_12.cpp
+++ b/src/Protocol/Protocol_1_12.cpp
@@ -399,6 +399,7 @@ void cProtocol_1_12::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
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());
@@ -1667,6 +1668,7 @@ void cProtocol_1_12_1::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
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());
diff --git a/src/Protocol/Protocol_1_8.cpp b/src/Protocol/Protocol_1_8.cpp
index 0e7abfd7a..c77af1029 100644
--- a/src/Protocol/Protocol_1_8.cpp
+++ b/src/Protocol/Protocol_1_8.cpp
@@ -2169,6 +2169,7 @@ void cProtocol_1_8_0::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
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());
diff --git a/src/Protocol/Protocol_1_9.cpp b/src/Protocol/Protocol_1_9.cpp
index 7fc6cf5f1..c6e007984 100644
--- a/src/Protocol/Protocol_1_9.cpp
+++ b/src/Protocol/Protocol_1_9.cpp
@@ -124,21 +124,46 @@ cProtocol_1_9_0::cProtocol_1_9_0(cClientHandle * a_Client, const AString & a_Ser
m_IsEncrypted(false)
{
- // 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
AStringVector Params;
- if (cRoot::Get()->GetServer()->ShouldAllowBungeeCord() && SplitZeroTerminatedStrings(a_ServerAddress, Params) && (Params.size() == 4))
+ SplitZeroTerminatedStrings(a_ServerAddress, Params);
+
+ if (Params.size() >= 2)
{
- LOGD("Player at %s connected via BungeeCord", Params[1].c_str());
m_ServerAddress = Params[0];
- m_Client->SetIPString(Params[1]);
- cUUID UUID;
- UUID.FromString(Params[2]);
- m_Client->SetUUID(UUID);
+ 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);
- m_Client->SetProperties(Params[3]);
+ m_Client->SetProperties(Params[3]);
+ }
+ 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?): " SIZE_T_FMT " 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:
@@ -2194,6 +2219,7 @@ void cProtocol_1_9_0::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
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());
@@ -4204,6 +4230,7 @@ void cProtocol_1_9_1::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
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());
@@ -4261,6 +4288,7 @@ void cProtocol_1_9_2::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
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());
@@ -4318,6 +4346,7 @@ void cProtocol_1_9_4::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
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());
diff --git a/src/Server.cpp b/src/Server.cpp
index 70d594f2d..6ddb14ae5 100644
--- a/src/Server.cpp
+++ b/src/Server.cpp
@@ -235,6 +235,56 @@ bool cServer::InitServer(cSettingsRepositoryInterface & a_Settings, bool a_Shoul
+bool cServer::RegisterForgeMod(const AString & a_ModName, const AString & a_ModVersion, UInt32 a_ProtocolVersionNumber)
+{
+ auto & Mods = RegisteredForgeMods(a_ProtocolVersionNumber);
+
+ return Mods.insert({a_ModName, a_ModVersion}).second;
+}
+
+
+
+
+
+void cServer::UnregisterForgeMod(const AString & a_ModName, UInt32 a_ProtocolVersionNumber)
+{
+ auto & Mods = RegisteredForgeMods(a_ProtocolVersionNumber);
+
+ auto it = Mods.find(a_ModName);
+ if (it != Mods.end())
+ {
+ Mods.erase(it);
+ }
+}
+
+
+
+
+AStringMap & cServer::RegisteredForgeMods(const UInt32 a_Protocol)
+{
+ auto it = m_ForgeModsByVersion.find(a_Protocol);
+
+ if (it == m_ForgeModsByVersion.end())
+ {
+ AStringMap mods;
+ m_ForgeModsByVersion.insert({a_Protocol, mods});
+ return m_ForgeModsByVersion.find(a_Protocol)->second;
+ }
+
+ return it->second;
+}
+
+
+
+
+const AStringMap & cServer::GetRegisteredForgeMods(const UInt32 a_Protocol)
+{
+ return RegisteredForgeMods(a_Protocol);
+}
+
+
+
+
bool cServer::IsPlayerInQueue(AString a_Username)
{
cCSLock Lock(m_CSClients);
diff --git a/src/Server.h b/src/Server.h
index 633f6de70..ffdee64d9 100644
--- a/src/Server.h
+++ b/src/Server.h
@@ -71,6 +71,16 @@ public:
size_t GetNumPlayers(void) const { return m_PlayerCount; }
void SetMaxPlayers(size_t a_MaxPlayers) { m_MaxPlayers = a_MaxPlayers; }
+ // tolua_end
+
+ /** Add a Forge mod to the server ping list. */
+ bool RegisterForgeMod(const AString & a_ModName, const AString & a_ModVersion, UInt32 a_ProtocolVersionNumber);
+
+ // tolua_begin
+
+ /** Remove a Forge mod to the server ping list. */
+ void UnregisterForgeMod(const AString & a_ModName, UInt32 a_ProtocolVersionNumber);
+
/** Check if the player is queued to be transferred to a World.
Returns true is Player is found in queue. */
bool IsPlayerInQueue(AString a_Username);
@@ -145,6 +155,9 @@ public:
from the settings. */
bool ShouldAllowMultiWorldTabCompletion(void) const { return m_ShouldAllowMultiWorldTabCompletion; }
+ /** Get the Forge mods (map of ModName -> ModVersionString) registered for a given protocol. */
+ const AStringMap & GetRegisteredForgeMods(const UInt32 a_Protocol);
+
private:
friend class cRoot; // so cRoot can create and destroy cServer
@@ -202,6 +215,9 @@ private:
size_t m_MaxPlayers;
bool m_bIsHardcore;
+ /** Map of protocol version to Forge mods (map of ModName -> ModVersionString) */
+ std::map<UInt32, AStringMap> m_ForgeModsByVersion;
+
/** True - allow same username to login more than once False - only once */
bool m_bAllowMultiLogin;
@@ -241,6 +257,9 @@ private:
cServer(void);
+ /** Get the Forge mods registered for a given protocol, for modification */
+ AStringMap & RegisteredForgeMods(const UInt32 a_Protocol);
+
/** Loads, or generates, if missing, RSA keys for protocol encryption */
void PrepareKeys(void);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 19:04:25 +0100