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-rw-r--r--src/ClientHandle.cpp40
-rw-r--r--src/ClientHandle.h4
-rw-r--r--src/Root.cpp16
-rw-r--r--src/Root.h5
-rw-r--r--src/Server.cpp18
-rw-r--r--src/Server.h11
-rw-r--r--src/World.cpp1
-rw-r--r--src/World.h2
8 files changed, 94 insertions, 3 deletions
diff --git a/src/ClientHandle.cpp b/src/ClientHandle.cpp
index c4a620565..cc83bcab3 100644
--- a/src/ClientHandle.cpp
+++ b/src/ClientHandle.cpp
@@ -1778,6 +1778,43 @@ void cClientHandle::HandleKeepAlive(int a_KeepAliveID)
+bool cClientHandle::CheckMultiLogin(const AString & a_Username)
+{
+ // If the multilogin is allowed, skip this check entirely:
+ if ((cRoot::Get()->GetServer()->DoesAllowMultiLogin()))
+ {
+ return true;
+ }
+
+ // Check if the player is waiting to be transferred to the World.
+ if (cRoot::Get()->GetServer()->IsPlayerInQueue(a_Username))
+ {
+ Kick("A player of the username is already logged in");
+ return false;
+ }
+
+ class cCallback :
+ public cPlayerListCallback
+ {
+ virtual bool Item(cPlayer * a_Player) override
+ {
+ return true;
+ }
+ } Callback;
+
+ // Check if the player is in any World.
+ if (cRoot::Get()->DoWithPlayer(a_Username, Callback))
+ {
+ Kick("A player of the username is already logged in");
+ return false;
+ }
+ return true;
+}
+
+
+
+
+
bool cClientHandle::HandleHandshake(const AString & a_Username)
{
if (!cRoot::Get()->GetPluginManager()->CallHookHandshake(*this, a_Username))
@@ -1788,7 +1825,8 @@ bool cClientHandle::HandleHandshake(const AString & a_Username)
return false;
}
}
- return true;
+
+ return CheckMultiLogin(a_Username);
}
diff --git a/src/ClientHandle.h b/src/ClientHandle.h
index 495348ac3..0e588d839 100644
--- a/src/ClientHandle.h
+++ b/src/ClientHandle.h
@@ -280,6 +280,10 @@ public:
void HandleEntityLeaveBed (int a_EntityID);
void HandleEntitySprinting (int a_EntityID, bool a_IsSprinting);
+ /** Kicks the current player if the same username is already logged in.
+ Returns false if a player has been kicked, true otherwise. */
+ bool CheckMultiLogin(const AString & a_Username);
+
/** Called when the protocol handshake has been received (for protocol versions that support it;
otherwise the first instant when a username is received).
Returns true if the player is to be let in, false if they were disconnected
diff --git a/src/Root.cpp b/src/Root.cpp
index a396d6998..29daaedcc 100644
--- a/src/Root.cpp
+++ b/src/Root.cpp
@@ -643,6 +643,22 @@ bool cRoot::DoWithPlayerByUUID(const AString & a_PlayerUUID, cPlayerListCallback
+bool cRoot::DoWithPlayer(const AString & a_PlayerName, cPlayerListCallback & a_Callback)
+{
+ for (auto World : m_WorldsByName)
+ {
+ if (World.second->DoWithPlayer(a_PlayerName, a_Callback))
+ {
+ return true;
+ }
+ }
+ return false;
+}
+
+
+
+
+
AString cRoot::GetProtocolVersionTextFromInt(int a_ProtocolVersion)
{
return cProtocolRecognizer::GetVersionTextFromInt(a_ProtocolVersion);
diff --git a/src/Root.h b/src/Root.h
index e70b284f9..2c512a5df 100644
--- a/src/Root.h
+++ b/src/Root.h
@@ -129,7 +129,10 @@ public:
/** Finds the player over his uuid and calls the callback */
bool DoWithPlayerByUUID(const AString & a_PlayerUUID, cPlayerListCallback & a_Callback); // >> EXPORTED IN MANUALBINDINGS <<
-
+
+ /** Finds the player using it's complete username and calls the callback */
+ bool DoWithPlayer(const AString & a_PlayerName, cPlayerListCallback & a_Callback);
+
// tolua_begin
/// Sends a chat message to all connected clients (in all worlds)
diff --git a/src/Server.cpp b/src/Server.cpp
index d6163df7e..3eaf6e096 100644
--- a/src/Server.cpp
+++ b/src/Server.cpp
@@ -196,6 +196,7 @@ bool cServer::InitServer(cIniFile & a_SettingsIni, bool a_ShouldAuth)
m_Description = a_SettingsIni.GetValueSet("Server", "Description", "MCServer - in C++!");
m_MaxPlayers = a_SettingsIni.GetValueSetI("Server", "MaxPlayers", 100);
m_bIsHardcore = a_SettingsIni.GetValueSetB("Server", "HardcoreEnabled", false);
+ m_bAllowMultiLogin = a_SettingsIni.GetValueSetB("Server", "AllowMultiLogin", false);
m_PlayerCount = 0;
m_PlayerCountDiff = 0;
@@ -298,6 +299,23 @@ int cServer::GetNumPlayers(void) const
+bool cServer::IsPlayerInQueue(AString a_Username)
+{
+ cCSLock Lock(m_CSClients);
+ for (auto client : m_Clients)
+ {
+ if ((client->GetUsername()).compare(a_Username) == 0)
+ {
+ return true;
+ }
+ }
+ return false;
+}
+
+
+
+
+
void cServer::PrepareKeys(void)
{
LOGD("Generating protocol encryption keypair...");
diff --git a/src/Server.h b/src/Server.h
index 022794bbc..39a5a1a71 100644
--- a/src/Server.h
+++ b/src/Server.h
@@ -67,6 +67,14 @@ public: // tolua_export
int GetNumPlayers(void) const;
void SetMaxPlayers(int a_MaxPlayers) { m_MaxPlayers = a_MaxPlayers; }
+ /** 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);
+
+ /** Can login more than once with same username.
+ Returns false if it is not allowed, true otherwise. */
+ bool DoesAllowMultiLogin(void) { return m_bAllowMultiLogin; }
+
// Hardcore mode or not:
bool IsHardcore(void) const { return m_bIsHardcore; }
@@ -216,6 +224,9 @@ private:
int m_MaxPlayers;
bool m_bIsHardcore;
+ /** True - allow same username to login more than once False - only once */
+ bool m_bAllowMultiLogin;
+
cTickThread m_TickThread;
cEvent m_RestartEvent;
diff --git a/src/World.cpp b/src/World.cpp
index 911b32904..3dc083a2e 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -3669,3 +3669,4 @@ void cWorld::cChunkGeneratorCallbacks::CallHookChunkGenerated (cChunkDesc & a_Ch
+
diff --git a/src/World.h b/src/World.h
index d64be208e..2f51d60a1 100644
--- a/src/World.h
+++ b/src/World.h
@@ -808,7 +808,7 @@ public:
This function allows nesting and task-concurrency (multiple separate tasks can request ticking and as long
as at least one requests is active the chunk will be ticked). */
void SetChunkAlwaysTicked(int a_ChunkX, int a_ChunkZ, bool a_AlwaysTicked = true); // tolua_export
-
+
private:
friend class cRoot;