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-rw-r--r--source/Server.cpp714
1 files changed, 714 insertions, 0 deletions
diff --git a/source/Server.cpp b/source/Server.cpp
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index 000000000..c77892076
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+++ b/source/Server.cpp
@@ -0,0 +1,714 @@
+
+// ReDucTor is an awesome guy who helped me a lot
+
+#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
+
+#include "Server.h"
+#include "ClientHandle.h"
+#include "OSSupport/Timer.h"
+#include "Mobs/Monster.h"
+#include "OSSupport/Socket.h"
+#include "Root.h"
+#include "World.h"
+#include "ChunkDef.h"
+#include "PluginManager.h"
+#include "GroupManager.h"
+#include "ChatColor.h"
+#include "Player.h"
+#include "Inventory.h"
+#include "Item.h"
+#include "FurnaceRecipe.h"
+#include "Tracer.h"
+#include "WebAdmin.h"
+#include "Protocol/ProtocolRecognizer.h"
+
+#include "MersenneTwister.h"
+
+#include "../iniFile/iniFile.h"
+#include "Vector3f.h"
+
+#include <fstream>
+#include <sstream>
+#include <iostream>
+
+
+
+
+
+extern "C" {
+ #include "zlib.h"
+}
+
+
+
+bool g_bWaterPhysics = false;
+
+typedef std::list< cClientHandle* > ClientList;
+
+
+
+
+
+struct cServer::sServerState
+{
+ sServerState()
+ : pListenThread( 0 )
+ , pTickThread( 0 )
+ , bStopListenThread( false )
+ , bStopTickThread( false )
+ {}
+ cSocket SListenClient; // socket listening for client calls
+
+ cThread* pListenThread; bool bStopListenThread;
+ cThread* pTickThread; bool bStopTickThread;
+
+ cEvent RestartEvent;
+ std::string ServerID;
+};
+
+
+
+
+
+cServer * cServer::GetServer()
+{
+ LOGWARN("WARNING: Using deprecated function cServer::GetServer() use cRoot::Get()->GetServer() instead!");
+ return cRoot::Get()->GetServer();
+}
+
+
+
+
+
+void cServer::ServerListenThread( void *a_Args )
+{
+ LOG("ServerListenThread");
+ cServer* self = (cServer*)a_Args;
+ sServerState* m_pState = self->m_pState;
+ while( !m_pState->bStopListenThread )
+ {
+ self->StartListenClient();
+ }
+}
+
+
+
+
+
+void cServer::ClientDestroying(const cClientHandle * a_Client)
+{
+ m_SocketThreads.StopReading(a_Client);
+}
+
+
+
+
+
+void cServer::NotifyClientWrite(const cClientHandle * a_Client)
+{
+ m_NotifyWriteThread.NotifyClientWrite(a_Client);
+}
+
+
+
+
+
+void cServer::WriteToClient(const cSocket * a_Socket, const AString & a_Data)
+{
+ m_SocketThreads.Write(a_Socket, a_Data);
+}
+
+
+
+
+
+void cServer::QueueClientClose(const cSocket * a_Socket)
+{
+ m_SocketThreads.QueueClose(a_Socket);
+}
+
+
+
+
+
+void cServer::RemoveClient(const cSocket * a_Socket)
+{
+ m_SocketThreads.RemoveClient(a_Socket);
+}
+
+
+
+
+
+bool cServer::InitServer( int a_Port )
+{
+ if( m_bIsConnected )
+ {
+ LOGERROR("ERROR: Trying to initialize server while server is already running!");
+ return false;
+ }
+
+ printf("/============================\\\n");
+ printf("| Custom Minecraft Server |\n");
+ printf("| Created by Kevin Bansberg |\n");
+ printf("| A.K.A. FakeTruth |\n");
+ printf("| Monsters by Alex Sonek |\n");
+ printf("| A.K.A. Duralex |\n");
+ printf("| Stuff by Mattes D |\n");
+ printf("| A.K.A. _Xoft(o) |\n");
+ printf("\\============================/\n");
+ printf("More info: WWW.MC-SERVER.ORG\n");
+ printf(" WWW.AE-C.NET\n");
+ printf(" WWW.RBTHINKTANK.COM\n");
+ printf("email: faketruth@gmail.com\n\n");
+
+ LOG("Starting up server.");
+ LOGINFO("Compatible clients: %s, protocol versions %s", MCS_CLIENT_VERSIONS, MCS_PROTOCOL_VERSIONS);
+
+ if( cSocket::WSAStartup() != 0 ) // Only does anything on Windows, but whatever
+ {
+ LOGERROR("WSAStartup() != 0");
+ return false;
+ }
+
+ m_pState->SListenClient = cSocket::CreateSocket();
+
+ if( !m_pState->SListenClient.IsValid() )
+ {
+ LOGERROR("m_SListenClient==INVALID_SOCKET (%s)", cSocket::GetErrorString( cSocket::GetLastError() ).c_str() );
+ return false;
+ }
+
+ if( m_pState->SListenClient.SetReuseAddress() == -1 )
+ {
+ LOGERROR("setsockopt == -1");
+ return false;
+ }
+
+ cSocket::SockAddr_In local;
+ local.Family = cSocket::ADDRESS_FAMILY_INTERNET;
+ local.Address = cSocket::INTERNET_ADDRESS_ANY;
+ local.Port = (unsigned short)a_Port; // 25565
+
+ if( m_pState->SListenClient.Bind( local ) != 0 )
+ {
+ LOGERROR("bind fail (%s)", cSocket::GetErrorString( cSocket::GetLastError() ).c_str() );
+ return false;
+ }
+
+ if( m_pState->SListenClient.Listen( 10 ) != 0)
+ {
+ LOGERROR("listen fail (%s)", cSocket::GetErrorString( cSocket::GetLastError() ).c_str() );
+ return false;
+ }
+
+ m_iServerPort = a_Port;
+ LOG("Port %i has been bound, server is open for connections", m_iServerPort);
+ m_bIsConnected = true;
+
+ cIniFile IniFile("settings.ini");
+ if (IniFile.ReadFile())
+ {
+ g_bWaterPhysics = IniFile.GetValueB("Physics", "Water", false );
+
+ m_pState->ServerID = "-";
+ if (IniFile.GetValueB("Authentication", "Authenticate"))
+ {
+ MTRand mtrand1;
+ unsigned int r1 = (mtrand1.randInt()%1147483647) + 1000000000;
+ unsigned int r2 = (mtrand1.randInt()%1147483647) + 1000000000;
+ std::ostringstream sid;
+ sid << std::hex << r1;
+ sid << std::hex << r2;
+ std::string ServerID = sid.str();
+ ServerID.resize(16, '0');
+ m_pState->ServerID = ServerID;
+ }
+
+ m_ClientViewDistance = IniFile.GetValueSetI("Server", "DefaultViewDistance", cClientHandle::DEFAULT_VIEW_DISTANCE);
+ if (m_ClientViewDistance < cClientHandle::MIN_VIEW_DISTANCE)
+ {
+ m_ClientViewDistance = cClientHandle::MIN_VIEW_DISTANCE;
+ LOGINFO("Setting default viewdistance to the minimum of %d", m_ClientViewDistance);
+ }
+ if (m_ClientViewDistance > cClientHandle::MAX_VIEW_DISTANCE)
+ {
+ m_ClientViewDistance = cClientHandle::MAX_VIEW_DISTANCE;
+ LOGINFO("Setting default viewdistance to the maximum of %d", m_ClientViewDistance);
+ }
+ IniFile.WriteFile();
+ }
+
+ m_NotifyWriteThread.Start(this);
+
+ PrepareKeys();
+
+ return true;
+}
+
+
+
+
+
+cServer::cServer()
+ : m_pState( new sServerState )
+ , m_Millisecondsf( 0 )
+ , m_Milliseconds( 0 )
+ , m_bIsConnected( false )
+ , m_iServerPort( 0 )
+ , m_bRestarting( false )
+{
+}
+
+
+
+
+
+cServer::~cServer()
+{
+ // TODO: Shut down the server gracefully
+ if ( m_pState->SListenClient )
+ {
+ m_pState->SListenClient.CloseSocket();
+ }
+ m_pState->SListenClient = 0;
+
+ m_pState->bStopListenThread = true;
+ delete m_pState->pListenThread; m_pState->pListenThread = NULL;
+ m_pState->bStopTickThread = true;
+ delete m_pState->pTickThread; m_pState->pTickThread = NULL;
+
+ delete m_pState;
+}
+
+
+
+
+
+void cServer::PrepareKeys(void)
+{
+ // TODO: Save and load key for persistence across sessions
+ // But generating the key takes only a moment, do we even need that?
+
+ LOG("Generating protocol encryption keypair...");
+
+ time_t CurTime = time(NULL);
+ CryptoPP::RandomPool rng;
+ rng.Put((const byte *)&CurTime, sizeof(CurTime));
+ m_PrivateKey.GenerateRandomWithKeySize(rng, 1024);
+ CryptoPP::RSA::PublicKey pk(m_PrivateKey);
+ m_PublicKey = pk;
+}
+
+
+
+
+
+void cServer::BroadcastChat(const AString & a_Message, const cClientHandle * a_Exclude)
+{
+ cCSLock Lock(m_CSClients);
+ for (ClientList::iterator itr = m_Clients.begin(); itr != m_Clients.end(); ++itr)
+ {
+ if ((*itr == a_Exclude) || !(*itr)->IsLoggedIn())
+ {
+ continue;
+ }
+ (*itr)->SendChat(a_Message);
+ }
+}
+
+
+
+
+
+void cServer::StartListenClient()
+{
+ cSocket SClient = m_pState->SListenClient.Accept();
+
+ if (!SClient.IsValid())
+ {
+ return;
+ }
+
+ const AString & ClientIP = SClient.GetIPString();
+ if (ClientIP.empty())
+ {
+ LOGWARN("cServer: A client connected, but didn't present its IP, disconnecting.");
+ SClient.CloseSocket();
+ return;
+ }
+
+ LOG("Client \"%s\" connected!", ClientIP.c_str());
+
+ cClientHandle *NewHandle = new cClientHandle(SClient, m_ClientViewDistance);
+ if (!m_SocketThreads.AddClient(&(NewHandle->GetSocket()), NewHandle))
+ {
+ // For some reason SocketThreads have rejected the handle, clean it up
+ LOGERROR("Client \"%s\" cannot be handled, server probably unstable", SClient.GetIPString().c_str());
+ SClient.CloseSocket();
+ delete NewHandle;
+ return;
+ }
+
+ cCSLock Lock(m_CSClients);
+ m_Clients.push_back( NewHandle );
+}
+
+
+
+
+
+bool cServer::Tick(float a_Dt)
+{
+ //LOG("1. Tick %0.2f", a_Dt);
+ if( a_Dt > 100.f ) a_Dt = 100.f; // Don't go over 1/10 second
+
+ m_Millisecondsf += a_Dt;
+ if( m_Millisecondsf > 1.f )
+ {
+ m_Milliseconds += (int)m_Millisecondsf;
+ m_Millisecondsf = m_Millisecondsf - (int)m_Millisecondsf;
+ }
+
+ cRoot::Get()->TickWorlds( a_Dt ); // TODO - Maybe give all worlds their own thread?
+
+ cClientHandleList RemoveClients;
+ {
+ cCSLock Lock(m_CSClients);
+ for (cClientHandleList::iterator itr = m_Clients.begin(); itr != m_Clients.end();)
+ {
+ if ((*itr)->IsDestroyed())
+ {
+ RemoveClients.push_back(*itr); // Remove the client later, when CS is not held, to avoid deadlock ( http://forum.mc-server.org/showthread.php?tid=374 )
+ itr = m_Clients.erase(itr);
+ continue;
+ }
+ (*itr)->Tick(a_Dt);
+ ++itr;
+ } // for itr - m_Clients[]
+ }
+ for (cClientHandleList::iterator itr = RemoveClients.begin(); itr != RemoveClients.end(); ++itr)
+ {
+ delete *itr;
+ } // for itr - RemoveClients[]
+
+ cRoot::Get()->GetPluginManager()->Tick( a_Dt );
+
+ if( !m_bRestarting )
+ {
+ return true;
+ }
+ else
+ {
+ m_bRestarting = false;
+ m_pState->RestartEvent.Set();
+ return false;
+ }
+}
+
+
+
+
+
+void ServerTickThread( void * a_Param )
+{
+ LOG("ServerTickThread");
+ cServer *CServerObj = (cServer*)a_Param;
+
+ cTimer Timer;
+
+ long long msPerTick = 50; // TODO - Put this in server config file
+ long long LastTime = Timer.GetNowTime();
+
+ bool bKeepGoing = true;
+ while( bKeepGoing )
+ {
+ long long NowTime = Timer.GetNowTime();
+ float DeltaTime = (float)(NowTime-LastTime);
+ bKeepGoing = CServerObj->Tick( DeltaTime );
+ long long TickTime = Timer.GetNowTime() - NowTime;
+
+ if( TickTime < msPerTick ) // Stretch tick time until it's at least msPerTick
+ {
+ cSleep::MilliSleep( (unsigned int)( msPerTick - TickTime ) );
+ }
+
+ LastTime = NowTime;
+ }
+
+ LOG("TICK THREAD STOPPED");
+}
+
+
+
+
+
+void cServer::StartListenThread()
+{
+ m_pState->pListenThread = new cThread( ServerListenThread, this, "cServer::ServerListenThread" );
+ m_pState->pTickThread = new cThread( ServerTickThread, this, "cServer::ServerTickThread" );
+ m_pState->pListenThread->Start( true );
+ m_pState->pTickThread->Start( true );
+}
+
+
+
+
+
+bool cServer::Command(cClientHandle & a_Client, const AString & a_Cmd)
+{
+ return cRoot::Get()->GetPluginManager()->CallHookChat(a_Client.GetPlayer(), a_Cmd);
+}
+
+
+
+
+
+void cServer::ServerCommand(const AString & a_Cmd)
+{
+ AStringVector split = StringSplit(a_Cmd, " ");
+ if (split.empty())
+ {
+ return;
+ }
+
+ if (split[0].compare( "help" ) == 0)
+ {
+ printf("================== ALL COMMANDS ===================\n");
+ printf("help - Shows this message\n");
+ printf("save-all - Saves all loaded chunks to disk\n");
+ printf("list - Lists all players currently in server\n");
+ printf("unload - Unloads all unused chunks\n");
+ printf("numchunks - Shows number of chunks currently loaded\n");
+ printf("chunkstats - Shows chunks statistics\n");
+ printf("say - Sends a chat message to all players\n");
+ printf("restart - Kicks all clients, and saves everything\n");
+ printf(" and clears memory\n");
+ printf("stop - Saves everything and closes server\n");
+ printf("===================================================\n");
+ return;
+ }
+ if ((split[0].compare("stop") == 0) || (split[0].compare("restart") == 0))
+ {
+ return;
+ }
+ if (split[0].compare("save-all") == 0)
+ {
+ cRoot::Get()->SaveAllChunks();
+ return;
+ }
+ if (split[0].compare("unload") == 0)
+ {
+ LOG("Num loaded chunks before: %i", cRoot::Get()->GetTotalChunkCount() );
+ cRoot::Get()->GetDefaultWorld()->UnloadUnusedChunks(); // TODO: Iterate through ALL worlds
+ LOG("Num loaded chunks after: %i", cRoot::Get()->GetTotalChunkCount() );
+ return;
+ }
+ if (split[0].compare("list") == 0)
+ {
+ class cPlayerLogger : public cPlayerListCallback
+ {
+ virtual bool Item(cPlayer * a_Player) override
+ {
+ LOG("\t%s @ %s", a_Player->GetName().c_str(), a_Player->GetClientHandle()->GetIPString().c_str());
+ return false;
+ }
+ } Logger;
+ cRoot::Get()->ForEachPlayer(Logger);
+ return;
+ }
+ if (split[0].compare("numchunks") == 0)
+ {
+ LOG("Num loaded chunks: %i", cRoot::Get()->GetTotalChunkCount() );
+ return;
+ }
+ if (split[0].compare("chunkstats") == 0)
+ {
+ cRoot::Get()->LogChunkStats();
+ return;
+ }
+
+ if (split[0].compare("monsters") == 0)
+ {
+ // TODO: cWorld::ListMonsters();
+ return;
+ }
+
+ if (split.size() > 1)
+ {
+ if (split[0].compare("say") == 0)
+ {
+ AString ToSay = a_Cmd.substr(a_Cmd.find_first_of("say") + 4);
+ AString Message = cChatColor::Purple + "[SERVER] " + ToSay;
+ LOG("[SERVER]: %s", ToSay.c_str());
+ BroadcastChat(Message);
+ return;
+ }
+ }
+ printf("Unknown command, type 'help' for all commands.\n");
+ // LOG("You didn't enter anything? (%s)", a_Cmd.c_str() );
+}
+
+
+
+
+
+void cServer::SendMessage(const AString & a_Message, cPlayer * a_Player /* = NULL */, bool a_bExclude /* = false */ )
+{
+ if ((a_Player != NULL) && !a_bExclude)
+ {
+ cClientHandle * Client = a_Player->GetClientHandle();
+ if (Client != NULL)
+ {
+ Client->SendChat(a_Message);
+ }
+ return;
+ }
+
+ BroadcastChat(a_Message, (a_Player != NULL) ? a_Player->GetClientHandle() : NULL);
+}
+
+
+
+
+
+void cServer::Shutdown()
+{
+ m_bRestarting = true;
+ m_pState->RestartEvent.Wait();
+
+ cRoot::Get()->SaveAllChunks();
+
+ cCSLock Lock(m_CSClients);
+ for( ClientList::iterator itr = m_Clients.begin(); itr != m_Clients.end(); ++itr )
+ {
+ (*itr)->Destroy();
+ delete *itr;
+ }
+ m_Clients.clear();
+}
+
+
+
+
+
+const AString & cServer::GetServerID(void) const
+{
+ return m_pState->ServerID;
+}
+
+
+
+
+
+void cServer::KickUser(int a_ClientID, const AString & a_Reason)
+{
+ cCSLock Lock(m_CSClients);
+ for (ClientList::iterator itr = m_Clients.begin(); itr != m_Clients.end(); ++itr)
+ {
+ if ((*itr)->GetUniqueID() == a_ClientID)
+ {
+ (*itr)->Kick(a_Reason);
+ }
+ } // for itr - m_Clients[]
+}
+
+
+
+
+
+void cServer::AuthenticateUser(int a_ClientID)
+{
+ cCSLock Lock(m_CSClients);
+ for (ClientList::iterator itr = m_Clients.begin(); itr != m_Clients.end(); ++itr)
+ {
+ if ((*itr)->GetUniqueID() == a_ClientID)
+ {
+ (*itr)->Authenticate();
+ }
+ } // for itr - m_Clients[]
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cServer::cClientPacketThread:
+
+cServer::cNotifyWriteThread::cNotifyWriteThread(void) :
+ super("ClientPacketThread"),
+ m_Server(NULL)
+{
+}
+
+
+
+
+
+cServer::cNotifyWriteThread::~cNotifyWriteThread()
+{
+ m_ShouldTerminate = true;
+ m_Event.Set();
+ Wait();
+}
+
+
+
+
+
+bool cServer::cNotifyWriteThread::Start(cServer * a_Server)
+{
+ m_Server = a_Server;
+ return super::Start();
+}
+
+
+
+
+
+void cServer::cNotifyWriteThread::Execute(void)
+{
+ cClientHandleList Clients;
+ while (!m_ShouldTerminate)
+ {
+ cCSLock Lock(m_CS);
+ while (m_Clients.size() == 0)
+ {
+ cCSUnlock Unlock(Lock);
+ m_Event.Wait();
+ if (m_ShouldTerminate)
+ {
+ return;
+ }
+ }
+
+ // Copy the clients to notify and unlock the CS:
+ Clients.splice(Clients.begin(), m_Clients);
+ Lock.Unlock();
+
+ for (cClientHandleList::iterator itr = Clients.begin(); itr != Clients.end(); ++itr)
+ {
+ m_Server->m_SocketThreads.NotifyWrite(*itr);
+ } // for itr - Clients[]
+ Clients.clear();
+ } // while (!mShouldTerminate)
+}
+
+
+
+
+
+void cServer::cNotifyWriteThread::NotifyClientWrite(const cClientHandle * a_Client)
+{
+ {
+ cCSLock Lock(m_CS);
+ m_Clients.remove(const_cast<cClientHandle *>(a_Client)); // Put it there only once
+ m_Clients.push_back(const_cast<cClientHandle *>(a_Client));
+ }
+ m_Event.Set();
+}
+
+
+
+