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487 lines (430 loc) · 16.2 KB
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/**
* =============================================================================
* Source Python
* Copyright (C) 2012 Source Python Development Team. All rights reserved.
* =============================================================================
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 3.0, as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the Source Python Team gives you permission
* to link the code of this program (as well as its derivative works) to
* "Half-Life 2," the "Source Engine," and any Game MODs that run on software
* by the Valve Corporation. You must obey the GNU General Public License in
* all respects for all other code used. Additionally, the Source.Python
* Development Team grants this exception to all derivative works.
*/
//---------------------------------------------------------------------------------
// Source includes
//---------------------------------------------------------------------------------
#include "loader_main.h"
#include "interface.h"
#include "eiface.h"
#include "strtools.h"
#ifdef _WIN32
# include <windows.h>
#endif
#include "../core/utilities/shared_utils.h"
//---------------------------------------------------------------------------------
// Disable warnings.
//---------------------------------------------------------------------------------
#if defined(_WIN32)
# pragma warning( disable : 4005 )
#endif
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
//---------------------------------------------------------------------------------
// Interfaces.
//---------------------------------------------------------------------------------
ICvar* g_pCVar = NULL; // This is required for linux linking..
//
// The plugin is a static singleton that is exported as an interface
//
CSourcePython g_EmtpyServerPlugin;
EXPOSE_SINGLE_INTERFACE_GLOBALVAR(CSourcePython, IServerPluginCallbacks, INTERFACEVERSION_ISERVERPLUGINCALLBACKS, g_EmtpyServerPlugin );
//---------------------------------------------------------------------------------
// Purpose: constructor/destructor
//---------------------------------------------------------------------------------
CSourcePython::CSourcePython()
{
m_iClientCommandIndex = 0;
m_pCore = NULL;
}
CSourcePython::~CSourcePython()
{
}
//---------------------------------------------------------------------------------
// This function will load libraries and return true if they load successfully.
//
//---------------------------------------------------------------------------------
void* SPLoadLibrary( IVEngineServer* engine, const char* libraryPath )
{
char szFullPath[1024];
char szGamePath[1024];
char szError[1024];
V_strncpy(szError, "[SP-LOADER] - No error found\n", 1024);
engine->GetGameDir(szGamePath, 1024);
GenerateSymlink(szGamePath);
V_snprintf(szFullPath, sizeof(szFullPath), "%s/addons/source-python/%s",
szGamePath, libraryPath);
// Fix up the slahes.
V_FixSlashes(szFullPath);
#if defined(_WIN32)
void* hModule = (void *)LoadLibrary(szFullPath);
if (!hModule)
{
// I hate windows programming...
DWORD nErrorCode = GetLastError();
LPVOID lpMsgBuf;
DWORD nBufferLength = FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
nErrorCode,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &lpMsgBuf,
0, NULL );
if(nBufferLength == 0)
{
V_snprintf(szError, sizeof(szError),
"[SP-LOADER] Could not obtain a valid translation for error. (Code: %d)\n",
nErrorCode);
}
else
{
char szResult[1024];
memset(szResult, '\0', 1024);
// Too lazy to bring across any windows functions, cast myself from wide to narrow
for (unsigned int i=0; i < nBufferLength; ++i)
{
szResult[i] = static_cast<char>(static_cast<LPCSTR>(lpMsgBuf)[i]);
}
V_snprintf(szError, sizeof(szError),
"[SP-LOADER] (Code: %d) %s",
nErrorCode,
szResult/*.c_str()*/);
LocalFree(lpMsgBuf);
}
}
#else
void* hModule = (void *)dlopen(szFullPath, RTLD_NOW | RTLD_GLOBAL);
if (!hModule)
{
V_snprintf(szError, sizeof(szError), "[SP-LOADER] Error Reported: %s\n",
dlerror());
}
#endif
if( !hModule ) {
Warning("=========================================================================\n");
Warning("[SP-LOADER] Could not load library: %s\n", libraryPath);
Warning(szError);
Warning("=========================================================================\n");
return hModule;
}
return hModule;
}
//---------------------------------------------------------------------------------
// Purpose: called when the plugin is loaded, load the interface we need from the engine
//---------------------------------------------------------------------------------
bool CSourcePython::Load( CreateInterfaceFn interfaceFactory, CreateInterfaceFn gameServerFactory )
{
Msg(MSG_PREFIX "Loading...\n");
IVEngineServer* engine = (IVEngineServer*)interfaceFactory(INTERFACEVERSION_VENGINESERVER, NULL);
// ------------------------------------------------------------------
// Build path to python engines directory.
// ------------------------------------------------------------------
char szGameDir[1024];
char szPythonHome[1024];
char szPythonEngine[1024];
char szSourcePython[1024];
// ------------------------------------------------------------------
// Get the game directory.
// ------------------------------------------------------------------
engine->GetGameDir(szGameDir, 1024);
GenerateSymlink(szGameDir);
// ------------------------------------------------------------------
// Load windows dependencies.
// ------------------------------------------------------------------
#if defined(_WIN32)
if( SPLoadLibrary(engine, MSVCRT_LIB) == NULL ) {
return false;
}
if( SPLoadLibrary(engine, MSVCP_LIB) == NULL ) {
return false;
}
#endif
// ------------------------------------------------------------------
// Construct paths to python and the core.
// ------------------------------------------------------------------
V_snprintf(szPythonHome, 1024, "%s/addons/source-python", szGameDir);
V_snprintf(szSourcePython, sizeof(szSourcePython), "%s/%s", szPythonHome, CORE_NAME);
V_snprintf(szPythonEngine, sizeof(szPythonEngine), "%s/%s", szPythonHome, PYLIB_NAME);
V_FixSlashes(szSourcePython);
V_FixSlashes(szPythonEngine);
// ------------------------------------------------------------------
// Load python.
// ------------------------------------------------------------------
#ifdef _WIN32
m_pPython = Sys_LoadModule(szPythonEngine);
#else
// This little gem cost me an entire thursday and a night's worth of
// sleep. Sys_LoadModule calls dlopen(lib, RTLD_NOW). Because it omits
// RTLD_GLOBAL, when Core.so decides to load, it is unable to relocate
// python's symbols correctly causing PyThreadState_GET() to fail!
// Long story short, we need RTLD_NOW coupled with RTLD_GLOBAL.
m_pPython = (CSysModule *)dlopen(szPythonEngine, RTLD_NOW | RTLD_GLOBAL);
#endif
if( !m_pPython ) {
Warning("===========================================\n");
Warning("[SP-LOADER] Could not load %s!\n", szPythonEngine);
Warning("===========================================\n");
return false;
}
// ------------------------------------------------------------------
// Load the Source.Python core.
// ------------------------------------------------------------------
m_pCore = new CDllDemandLoader(szSourcePython);
if( !m_pCore->GetFactory() ) {
Warning("===========================================\n");
Warning("[SP-LOADER] Could not load the %s!\n", szSourcePython);
Warning("===========================================\n");
return false;
}
// Get the interface from it.
m_pCorePlugin = static_cast<IServerPluginCallbacks*>(
m_pCore->GetFactory()(INTERFACEVERSION_ISERVERPLUGINCALLBACKS, NULL)
);
if( !m_pCorePlugin ) {
Warning("=========================================================================\n");
Warning("[SP-LOADER] Could not retrieve the server plugin interface from the core!\n");
Warning("=========================================================================\n");
return false;
}
// Pass it on.
return m_pCorePlugin->Load(interfaceFactory, gameServerFactory);
}
//---------------------------------------------------------------------------------
// Purpose: called when the plugin is unloaded (turned off)
//---------------------------------------------------------------------------------
void CSourcePython::Unload( void )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->Unload();
}
}
//---------------------------------------------------------------------------------
// Purpose: called when the plugin is paused (i.e should stop running but isn't unloaded)
//---------------------------------------------------------------------------------
void CSourcePython::Pause( void )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->Pause();
}
}
//---------------------------------------------------------------------------------
// Purpose: called when the plugin is unpaused (i.e should start executing again)
//---------------------------------------------------------------------------------
void CSourcePython::UnPause( void )
{
m_pCorePlugin->UnPause();
}
//---------------------------------------------------------------------------------
// Purpose: the name of this plugin, returned in "plugin_print" command
//---------------------------------------------------------------------------------
const char *CSourcePython::GetPluginDescription( void )
{
if (m_pCorePlugin != NULL)
{
return m_pCorePlugin->GetPluginDescription();
}
return "Error loading core plugin.";
}
//---------------------------------------------------------------------------------
// Purpose: called on level start
//---------------------------------------------------------------------------------
void CSourcePython::LevelInit( char const *pMapName )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->LevelInit(pMapName);
}
}
//---------------------------------------------------------------------------------
// Purpose: called on level start, when the server is ready to accept client connections
// edictCount is the number of entities in the level, clientMax is the max client count
//---------------------------------------------------------------------------------
void CSourcePython::ServerActivate( edict_t *pEdictList, int edictCount, int clientMax )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->ServerActivate(pEdictList, edictCount, clientMax);
}
}
//---------------------------------------------------------------------------------
// Purpose: called once per server frame, do recurring work here (like checking for timeouts)
//---------------------------------------------------------------------------------
void CSourcePython::GameFrame( bool simulating )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->GameFrame(simulating);
}
}
//---------------------------------------------------------------------------------
// Purpose: called on level end (as the server is shutting down or going to a new map)
//---------------------------------------------------------------------------------
void CSourcePython::LevelShutdown( void ) // !!!!this can get called multiple times per map change
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->LevelShutdown();
}
}
//---------------------------------------------------------------------------------
// Purpose: called when a client spawns into a server (i.e as they begin to play)
//---------------------------------------------------------------------------------
void CSourcePython::ClientActive( edict_t *pEntity )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->ClientActive(pEntity);
}
}
//---------------------------------------------------------------------------------
// Purpose: called when a client leaves a server (or is timed out)
//---------------------------------------------------------------------------------
void CSourcePython::ClientDisconnect( edict_t *pEntity )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->ClientDisconnect(pEntity);
}
}
//---------------------------------------------------------------------------------
// Purpose: called on
//---------------------------------------------------------------------------------
void CSourcePython::ClientPutInServer( edict_t *pEntity, char const *playername )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->ClientPutInServer(pEntity, playername);
}
}
//---------------------------------------------------------------------------------
// Purpose: called on level start
//---------------------------------------------------------------------------------
void CSourcePython::SetCommandClient( int index )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->SetCommandClient(index);
}
}
//---------------------------------------------------------------------------------
// Purpose: called on level start
//---------------------------------------------------------------------------------
void CSourcePython::ClientSettingsChanged( edict_t *pEdict )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->ClientSettingsChanged(pEdict);
}
}
//---------------------------------------------------------------------------------
// Purpose: called when a client joins a server
//---------------------------------------------------------------------------------
PLUGIN_RESULT CSourcePython::ClientConnect( bool *bAllowConnect, edict_t *pEntity, const char *pszName, const char *pszAddress, char *reject, int maxrejectlen )
{
if (m_pCorePlugin != NULL)
{
return m_pCorePlugin->ClientConnect(bAllowConnect, pEntity, pszName, pszAddress, reject, maxrejectlen);
}
return PLUGIN_STOP;
}
//---------------------------------------------------------------------------------
// Purpose: called when a client is authenticated
//---------------------------------------------------------------------------------
PLUGIN_RESULT CSourcePython::NetworkIDValidated( const char *pszUserName, const char *pszNetworkID )
{
if (m_pCorePlugin != NULL)
{
return m_pCorePlugin->NetworkIDValidated(pszUserName, pszNetworkID);
}
return PLUGIN_STOP;
}
//---------------------------------------------------------------------------------
// Purpose: called when a cvar value query is finished
//---------------------------------------------------------------------------------
void CSourcePython::OnQueryCvarValueFinished( QueryCvarCookie_t iCookie, edict_t *pPlayerEntity,
EQueryCvarValueStatus eStatus, const char *pCvarName, const char *pCvarValue )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->OnQueryCvarValueFinished(iCookie, pPlayerEntity, eStatus, pCvarName, pCvarValue);
}
}
//---------------------------------------------------------------------------------
// Orangebox.
//---------------------------------------------------------------------------------
PLUGIN_RESULT CSourcePython::ClientCommand( edict_t *pEntity, const CCommand &args )
{
if (m_pCorePlugin != NULL)
{
return m_pCorePlugin->ClientCommand(pEntity, args);
}
return PLUGIN_STOP;
}
//---------------------------------------------------------------------------------
// Alien Swarm.
//---------------------------------------------------------------------------------
#ifdef ENGINE_CSGO
void CSourcePython::ClientFullyConnect( edict_t *pEntity )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->ClientFullyConnect(pEntity);
}
}
void CSourcePython::OnEdictAllocated( edict_t *edict )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->OnEdictAllocated(edict);
}
}
void CSourcePython::OnEdictFreed( const edict_t *edict )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->OnEdictFreed(edict);
}
}
#endif
#ifdef ENGINE_BMS
void CSourcePython::OnEdictAllocated( edict_t *edict )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->OnEdictAllocated(edict);
}
}
void CSourcePython::OnEdictFreed( const edict_t *edict )
{
if (m_pCorePlugin != NULL)
{
m_pCorePlugin->OnEdictFreed(edict);
}
}
#endif