1102 lines
30 KiB
C++
1102 lines
30 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $Workfile: $
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// $Date: $
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// $NoKeywords: $
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//===========================================================================//
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// support QueryPerformanceCounter
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#if defined(_WIN32) && !defined(_X360)
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#endif
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#include "quakedef.h"
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#include "zone.h"
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#include "tier0/vcrmode.h"
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#include "demo.h"
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#include "filesystem.h"
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#include "filesystem_engine.h"
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#include "eiface.h"
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#include "server.h"
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#include "sys.h"
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#include "baseautocompletefilelist.h"
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#include "tier0/icommandline.h"
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#include "tier1/utlbuffer.h"
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#include "gl_cvars.h"
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#include "tier0/memalloc.h"
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#include "netmessages.h"
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#include "client.h"
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#include "sv_plugin.h"
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#include "tier1/CommandBuffer.h"
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#include "cvar.h"
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#include "vstdlib/random.h"
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#include "tier1/utldict.h"
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#include "tier0/etwprof.h"
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#include "tier0/vprof.h"
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#include "gl_matsysiface.h" // update materialsystem config
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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// This denotes an execution marker in the command stream.
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#define CMDSTR_ADD_EXECUTION_MARKER "[$&*,`]"
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#ifdef _DEBUG
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ConVar cl_debug_respect_cheat_vars( "cl_debug_respect_cheat_vars", "0", 0, "(debug builds only) - when set to 0, the client can change cheat vars." );
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#endif
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extern ConVar sv_allow_wait_command;
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#define MAX_ALIAS_NAME 32
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#define MAX_COMMAND_LENGTH 1024
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struct cmdalias_t
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{
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cmdalias_t *next;
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char name[ MAX_ALIAS_NAME ];
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char *value;
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};
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static cmdalias_t *cmd_alias = NULL;
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static CCommandBuffer s_CommandBuffer;
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static CThreadFastMutex s_CommandBufferMutex;
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#define LOCK_COMMAND_BUFFER() AUTO_LOCK(s_CommandBufferMutex)
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static FileAssociationInfo g_FileAssociations[] =
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{
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{ ".dem", "playdemo" },
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{ ".sav", "load" },
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{ ".bsp", "map" },
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};
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int g_iFilterCommandsByServerCanExecute = 0; // If this is nonzero, then they want us to only run commands marked with FCVAR_SERVER_CAN_EXECUTE.
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int g_iFilterCommandsByClientCmdCanExecute = 0; // If this is nonzero, then they want us to only run commands marked with FCVAR_CLIENTCMD_CAN_EXECUTE.
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// This is a list of cvars that are in the client DLL that we want FCVAR_CLIENTCMD_CAN_EXECUTE set on.
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// In order to avoid patching the client DLL, we setup this list. Whenever the client DLL has gone out with the
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// FCVAR_CLIENTCMD_CAN_EXECUTE flag set, we can get rid of this list.
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CUtlDict<int,int> g_ExtraClientCmdCanExecuteCvars;
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void Cmd_AddClientCmdCanExecuteVar( const char *pName )
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{
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if ( g_ExtraClientCmdCanExecuteCvars.Find( pName ) == g_ExtraClientCmdCanExecuteCvars.InvalidIndex() )
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g_ExtraClientCmdCanExecuteCvars.Insert( pName );
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}
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//=============================================================================
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// These functions manage a list of execution markers that we use to verify
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// special commands in the command buffer.
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//=============================================================================
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static CUtlVector<int> g_ExecutionMarkers;
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static CUniformRandomStream g_ExecutionMarkerStream;
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static bool g_bExecutionMarkerStreamInitialized = false;
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static int CreateExecutionMarker()
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{
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if ( !g_bExecutionMarkerStreamInitialized )
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{
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int iSeed;
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if ( IsPosix() )
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{
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float flFloatTime = (float)Plat_FloatTime();
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iSeed = *(int*)(&flFloatTime);
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}
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else
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{
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#if defined(_WIN32) && !defined(_X360)
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LARGE_INTEGER CurrentTime;
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QueryPerformanceCounter( &CurrentTime );
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iSeed = CurrentTime.LowPart ^ CurrentTime.HighPart;
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#else
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float flFloatTime = (float)Plat_FloatTime();
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iSeed = *(int*)(&flFloatTime);
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#endif
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}
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g_ExecutionMarkerStream.SetSeed( iSeed );
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g_bExecutionMarkerStreamInitialized = true;
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}
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if ( g_ExecutionMarkers.Count() >= MAX_EXECUTION_MARKERS )
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{
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// Callers to this function should call Cbuf_HasRoomForExecutionMarkers first.
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Host_Error( "CreateExecutionMarker called, but the max has already been reached." );
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}
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int nRandomNumber;
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int nIndex = g_ExecutionMarkers.InvalidIndex();
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// Pick a random number that doesn't already exist in the list
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do
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{
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// We don't have CCrypto :(
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// if ( CCrypto::GenerateRandomBlock( (uint8 *)&nRandomNumber, sizeof(nRandomNumber) ) )
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// {
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// nRandomNumber = nRandomNumber & 0x7FFFFFFF;
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// }
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// else
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// {
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nRandomNumber = g_ExecutionMarkerStream.RandomInt( 0, 1<<30 );
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// }
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nIndex = g_ExecutionMarkers.Find( nRandomNumber );
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} while ( nIndex != g_ExecutionMarkers.InvalidIndex() );
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int i = g_ExecutionMarkers.AddToTail( nRandomNumber );
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return g_ExecutionMarkers[i];
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}
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static bool FindAndRemoveExecutionMarker( int iCode )
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{
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int i = g_ExecutionMarkers.Find( iCode );
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if ( i == g_ExecutionMarkers.InvalidIndex() )
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return false;
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g_ExecutionMarkers.Remove( i );
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return true;
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}
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//-----------------------------------------------------------------------------
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// Used to allow cheats even if cheats aren't theoretically allowed
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//-----------------------------------------------------------------------------
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static bool g_bRPTActive = false;
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void Cmd_SetRptActive( bool bActive )
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{
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g_bRPTActive = bActive;
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}
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bool Cmd_IsRptActive()
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{
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return g_bRPTActive;
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}
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//=============================================================================
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//-----------------------------------------------------------------------------
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// Just translates BindToggle <key> <cvar> into: bind <key> "increment var <cvar> 0 1 1"
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//-----------------------------------------------------------------------------
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CON_COMMAND( BindToggle, "Performs a bind <key> \"increment var <cvar> 0 1 1\"" )
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{
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if( args.ArgC() <= 2 )
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{
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ConMsg( "BindToggle <key> <cvar>: invalid syntax specified\n" );
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return;
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}
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char newCmd[MAX_COMMAND_LENGTH];
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Q_snprintf( newCmd, sizeof(newCmd), "bind %s \"incrementvar %s 0 1 1\"\n", args[1], args[2] );
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Cbuf_InsertText( newCmd );
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}
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CON_COMMAND_F( PerfMark, "inserts a telemetry marker into the stream. If args are provided, they will be included.", FCVAR_NONE )
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{
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// Nothing to do, we had our message written out by Cbuf_ExecuteCommand.
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}
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//-----------------------------------------------------------------------------
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// Init, shutdown
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//-----------------------------------------------------------------------------
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void Cbuf_Init()
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{
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// Wait for 1 execute time
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s_CommandBuffer.SetWaitDelayTime( 1 );
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}
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void Cbuf_Shutdown()
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{
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}
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//-----------------------------------------------------------------------------
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// Clears the command buffer
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//-----------------------------------------------------------------------------
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void Cbuf_Clear()
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{
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Cbuf_Init();
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}
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//-----------------------------------------------------------------------------
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// Adds command text at the end of the buffer
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//-----------------------------------------------------------------------------
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void Cbuf_AddText( const char *pText )
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{
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LOCK_COMMAND_BUFFER();
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if ( !s_CommandBuffer.AddText( pText ) )
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{
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ConMsg( "Cbuf_AddText: buffer overflow\n" );
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}
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}
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//-----------------------------------------------------------------------------
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// Escape an argument for a command. This *can* fail as many characters cannot
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// actually be passed through the old command syntax...
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//-----------------------------------------------------------------------------
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bool Cbuf_EscapeCommandArg( const char *pText, char *pOut, unsigned int nOut )
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{
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// Okay, so, to be honest, all we can do with the super limited syntax is ensure we don't have quotes or control
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// characters, and then wrap the string in quotes. Hence escape *argument*. Anything more advanced than that is just
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// not allowable.
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if ( !pText || !*pText )
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return false;
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for (const char *pChar = pText; pChar && *pChar; pChar++ )
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{
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// ASCII control characters (codepoints <= 31) are just not sane to pass to this system. This includes \n and
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// \r.
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if ( *pChar <= (char)31 )
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return false;
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// Can't quote these with current syntax.
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if ( *pChar == '"' )
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return false;
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}
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// Room for quotes+null in out?
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if ( !pOut || nOut < (unsigned int)V_strlen( pText ) + 3 )
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return false;
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V_snprintf( pOut, nOut, "\"%s\"", pText );
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return true;
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}
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//-----------------------------------------------------------------------------
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// Adds command text at the beginning of the buffer
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//-----------------------------------------------------------------------------
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void Cbuf_InsertText( const char *pText )
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{
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LOCK_COMMAND_BUFFER();
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// NOTE: This operation is only allowed when the command buffer
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// is in the middle of processing. If this assertion never triggers,
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// it's safe to eliminate Cbuf_InsertText altogether.
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// Otherwise, I have to add a feature to CCommandBuffer
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Assert( s_CommandBuffer.IsProcessingCommands() );
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Cbuf_AddText( pText );
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}
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bool Cbuf_AddExecutionMarker( ECmdExecutionMarker marker, const char *pszMarkerCode )
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{
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if ( marker == eCmdExecutionMarker_Enable_FCVAR_SERVER_CAN_EXECUTE )
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{
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s_CommandBuffer.SetWaitEnabled( false );
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}
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else if ( marker == eCmdExecutionMarker_Disable_FCVAR_SERVER_CAN_EXECUTE )
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{
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s_CommandBuffer.SetWaitEnabled( true );
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}
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return s_CommandBuffer.AddText( pszMarkerCode );
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}
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bool Cbuf_AddTextWithMarkers( ECmdExecutionMarker markerLeft, const char *text, ECmdExecutionMarker markerRight )
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{
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if ( !Cbuf_HasRoomForExecutionMarkers( 2 ) )
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{
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ConMsg( "Cbuf_AddTextWithMarkers: execution marker overflow\n" );
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return false;
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}
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int iMarkerCodeLeft = CreateExecutionMarker();
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int iMarkerCodeRight = CreateExecutionMarker();
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// CMDCHAR_ADD_EXECUTION_MARKER tells us there's a special execution thing here.
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// (char)marker tells it what to turn on
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// iRandomCode is for security, so only our code can stuff this command into the buffer.
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char szMarkerLeft[512], szMarkerRight[512];
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V_sprintf_safe( szMarkerLeft, ";%s %c %d;", CMDSTR_ADD_EXECUTION_MARKER, (char)markerLeft, iMarkerCodeLeft );
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V_sprintf_safe( szMarkerRight, ";%s %c %d;", CMDSTR_ADD_EXECUTION_MARKER, (char)markerRight, iMarkerCodeRight );
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// Due to the behavior of the command buffer, we may be over-estimating the amount of space required.
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int cTextToBeAdded = strlen( szMarkerLeft ) + strlen( szMarkerRight ) + strlen( text ) + 3;
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LOCK_COMMAND_BUFFER();
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if ( s_CommandBuffer.GetArgumentBufferSize() + cTextToBeAdded + 1 > s_CommandBuffer.GetMaxArgumentBufferSize() )
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{
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// cleanup
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FindAndRemoveExecutionMarker( iMarkerCodeLeft );
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FindAndRemoveExecutionMarker( iMarkerCodeRight );
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ConMsg( "Cbuf_AddTextWithMarkers: buffer overflow\n" );
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return false;
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}
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bool bSuccess = Cbuf_AddExecutionMarker( markerLeft, szMarkerLeft ) &&
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s_CommandBuffer.AddText( text ) &&
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Cbuf_AddExecutionMarker( markerRight, szMarkerRight );
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if ( !bSuccess )
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{
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// If we screwed up the validation, don't allow us to get stuck in a bad state.
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Host_Error( "Cbuf_AddTextWithMarkers: buffer overflow\n" );
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}
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return true;
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}
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bool Cbuf_HasRoomForExecutionMarkers( int cExecutionMarkers )
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{
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return ( g_ExecutionMarkers.Count() + cExecutionMarkers ) < MAX_EXECUTION_MARKERS;
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}
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//-----------------------------------------------------------------------------
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// Executes commands in the buffer
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//-----------------------------------------------------------------------------
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static void Cbuf_ExecuteCommand( const CCommand &args, cmd_source_t source )
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{
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// Note: If you remove this, PerfMark needs to do the same logic--so don't do that.
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tmMessage( TELEMETRY_LEVEL0, TMMF_SEVERITY_LOG | TMMF_ICON_NOTE, "(source/command) %s", tmDynamicString( TELEMETRY_LEVEL0, args.GetCommandString() ) );
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// Add the command text to the ETW stream to give better context to traces.
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ETWMark( args.GetCommandString() );
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// execute the command line
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const ConCommandBase *pCmd = Cmd_ExecuteCommand( args, source );
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#if !defined(SWDS) && !defined(_XBOX)
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if ( pCmd && !pCmd->IsFlagSet( FCVAR_DONTRECORD ) )
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{
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demorecorder->RecordCommand( args.GetCommandString() );
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}
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#endif
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}
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//-----------------------------------------------------------------------------
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// Executes commands in the buffer
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//-----------------------------------------------------------------------------
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void Cbuf_Execute()
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{
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VPROF("Cbuf_Execute");
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tmZoneFiltered( TELEMETRY_LEVEL0, 50, TMZF_NONE, "%s", __FUNCTION__ );
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if ( !ThreadInMainThread() )
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{
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Warning( "Executing command outside main loop thread\n" );
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ExecuteOnce( DebuggerBreakIfDebugging() );
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}
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LOCK_COMMAND_BUFFER();
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// If text was added with Cbuf_AddText and then Cbuf_Execute gets called from within handler, we're going
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// to execute the new commands anyway, so we can ignore this extra execute call here.
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if ( s_CommandBuffer.IsProcessingCommands() )
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return;
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// Allow/Don't allow wait commands.
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if ( sv_allow_wait_command.GetBool() != s_CommandBuffer.IsWaitEnabled() )
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{
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s_CommandBuffer.SetWaitEnabled( sv_allow_wait_command.GetBool() );
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}
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// NOTE: The command buffer knows about execution time related to commands,
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// but since HL2 doesn't, we're going to spoof the command time to simply
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// be the the number of times Cbuf_Execute is called.
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s_CommandBuffer.BeginProcessingCommands( 1 );
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while ( s_CommandBuffer.DequeueNextCommand( ) )
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{
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Cbuf_ExecuteCommand( s_CommandBuffer.GetCommand(), src_command );
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}
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s_CommandBuffer.EndProcessingCommands( );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : *param -
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// Output : static char const
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//-----------------------------------------------------------------------------
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static char const *Cmd_TranslateFileAssociation(char const *param )
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{
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static char sz[ 512 ];
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char *retval = NULL;
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char temp[ 512 ];
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Q_strncpy( temp, param, sizeof( temp ) );
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Q_FixSlashes( temp );
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Q_strlower( temp );
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const char *extension = V_GetFileExtension(temp);
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// must have an extension to map
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if (!extension)
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return retval;
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int c = ARRAYSIZE( g_FileAssociations );
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for ( int i = 0; i < c; i++ )
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{
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FileAssociationInfo& info = g_FileAssociations[ i ];
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if ( ! Q_strcmp( extension, info.extension+1 ) &&
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! CommandLine()->FindParm(va( "+%s", info.command_to_issue ) ) )
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{
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// Translate if haven't already got one of these commands
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Q_strncpy( sz, temp, sizeof( sz ) );
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Q_FileBase( sz, temp, sizeof( sz ) );
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Q_snprintf( sz, sizeof( sz ), "%s %s", info.command_to_issue, temp );
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retval = sz;
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break;
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}
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}
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// return null if no translation, otherwise return commands
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return retval;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Adds command line parameters as script statements
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// Commands lead with a +, and continue until a - or another +
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// Also automatically converts .dem, .bsp, and .sav files to +playdemo etc command line options
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// hl2 +cmd amlev1
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// hl2 -nosound +cmd amlev1
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// Output : void Cmd_StuffCmds_f
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//-----------------------------------------------------------------------------
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CON_COMMAND( stuffcmds, "Parses and stuffs command line + commands to command buffer." )
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{
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if ( args.ArgC() != 1 )
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{
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ConMsg( "stuffcmds : execute command line parameters\n" );
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return;
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}
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MEM_ALLOC_CREDIT();
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CUtlBuffer build( 0, 0, CUtlBuffer::TEXT_BUFFER );
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// arg[0] is the executable name
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for ( int i=1; i < CommandLine()->ParmCount(); i++ )
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{
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const char *szParm = CommandLine()->GetParm(i);
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if (!szParm) continue;
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if (szParm[0] == '-')
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{
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// skip -XXX options and eat their args
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const char *szValue = CommandLine()->ParmValueByIndex( i );
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if ( szValue )
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i++;
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continue;
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}
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if (szParm[0] == '+')
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{
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// convert +XXX options and stuff them into the build buffer
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const char *szValue = CommandLine()->ParmValueByIndex( i );
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if (szValue)
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{
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build.PutString(va("%s %s\n", szParm+1, szValue));
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i++;
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}
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else
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{
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build.PutString(szParm+1);
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build.PutChar('\n');
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}
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}
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else
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{
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// singleton values, convert to command
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char const *translated = Cmd_TranslateFileAssociation( CommandLine()->GetParm( i ) );
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if (translated)
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{
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build.PutString(translated);
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build.PutChar('\n');
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}
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}
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}
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build.PutChar( '\0' );
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if ( build.TellPut() > 1 )
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{
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Cbuf_InsertText( (char *)build.Base() );
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}
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}
|
|
|
|
|
|
|
|
bool IsValidFileExtension( const char *pszFilename )
|
|
{
|
|
if ( !pszFilename )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if ( Q_strstr( pszFilename, ".exe" ) ||
|
|
Q_strstr( pszFilename, ".vbs" ) ||
|
|
Q_strstr( pszFilename, ".com" ) ||
|
|
Q_strstr( pszFilename, ".bat" ) ||
|
|
Q_strstr( pszFilename, ".dll" ) ||
|
|
Q_strstr( pszFilename, ".ini" ) ||
|
|
Q_strstr( pszFilename, ".gcf" ) ||
|
|
Q_strstr( pszFilename, ".sys" ) ||
|
|
Q_strstr( pszFilename, ".blob" ) )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
Cmd_Exec_f
|
|
===============
|
|
*/
|
|
|
|
void Cmd_Exec_f( const CCommand &args )
|
|
{
|
|
LOCK_COMMAND_BUFFER();
|
|
char fileName[MAX_OSPATH];
|
|
|
|
int argc = args.ArgC();
|
|
|
|
if ( argc != 2 )
|
|
{
|
|
ConMsg( "exec <filename>: execute a script file\n" );
|
|
return;
|
|
}
|
|
|
|
const char *szFile = args[1];
|
|
|
|
const char *pPathID = "MOD";
|
|
|
|
Q_snprintf( fileName, sizeof( fileName ), "//%s/cfg/%s", pPathID, szFile );
|
|
Q_DefaultExtension( fileName, ".cfg", sizeof( fileName ) );
|
|
|
|
// check path validity
|
|
if ( !COM_IsValidPath( fileName ) )
|
|
{
|
|
ConMsg( "exec %s: invalid path.\n", fileName );
|
|
return;
|
|
}
|
|
|
|
// check for invalid file extensions
|
|
if ( !IsValidFileExtension( fileName ) )
|
|
{
|
|
ConMsg( "exec %s: invalid file type.\n", fileName );
|
|
return;
|
|
}
|
|
|
|
// 360 doesn't need to do costly existence checks
|
|
if ( IsPC() )
|
|
{
|
|
if ( g_pFileSystem->FileExists( fileName ) )
|
|
{
|
|
// don't want to exec files larger than 1 MB
|
|
// probably not a valid file to exec
|
|
unsigned int size = g_pFileSystem->Size( fileName );
|
|
if ( size > 1*1024*1024 )
|
|
{
|
|
ConMsg( "exec %s: file size larger than 1 MB!\n", szFile );
|
|
return;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Many exec files are optional. make the error message slightly
|
|
// more informative and less like there is a problem.
|
|
if ( !V_stristr( szFile, "autoexec.cfg" ) && !V_stristr( szFile, "joystick.cfg" ) && !V_stristr( szFile, "game.cfg" ) )
|
|
{
|
|
ConMsg( "'%s' not present; not executing.\n", szFile );
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
char buf[16384] = { 0 };
|
|
int len = 0;
|
|
char *f = (char *)COM_LoadStackFile( fileName, buf, sizeof( buf ), len );
|
|
if ( !f )
|
|
{
|
|
ConMsg( "exec: couldn't exec %s\n", szFile );
|
|
return;
|
|
}
|
|
|
|
char *original_f = f;
|
|
VCRHook_Cmd_Exec(&f);
|
|
|
|
// In case f was allocated and VCR mode spoofed f, free the old one we allocated earlier.
|
|
if ( original_f != buf && original_f != f )
|
|
{
|
|
free( original_f );
|
|
}
|
|
|
|
ConDMsg( "execing %s\n", szFile );
|
|
|
|
// check to make sure we're not going to overflow the cmd_text buffer
|
|
int hCommand = s_CommandBuffer.GetNextCommandHandle();
|
|
|
|
// Execute each command immediately
|
|
const char *pszDataPtr = f;
|
|
while( true )
|
|
{
|
|
// parse a line out of the source
|
|
pszDataPtr = COM_ParseLine( pszDataPtr );
|
|
|
|
// no more tokens
|
|
if ( Q_strlen( com_token ) <= 0 )
|
|
break;
|
|
|
|
Cbuf_InsertText( com_token );
|
|
|
|
// Execute all commands provoked by the current line read from the file
|
|
while ( s_CommandBuffer.GetNextCommandHandle() != hCommand )
|
|
{
|
|
if( s_CommandBuffer.DequeueNextCommand( ) )
|
|
{
|
|
Cbuf_ExecuteCommand( s_CommandBuffer.GetCommand(), src_command );
|
|
}
|
|
else
|
|
{
|
|
Assert( 0 );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( f != buf )
|
|
{
|
|
// Hack for VCR playback. vcrmode allocates the memory but doesn't use the debug memory allocator,
|
|
// so we don't want to free what it allocated.
|
|
if ( f == original_f )
|
|
{
|
|
free( f );
|
|
}
|
|
}
|
|
// force any queued convar changes to flush before reading/writing them
|
|
UpdateMaterialSystemConfig();
|
|
}
|
|
|
|
|
|
/*
|
|
===============
|
|
Cmd_Echo_f
|
|
|
|
Just prints the rest of the line to the console
|
|
===============
|
|
*/
|
|
CON_COMMAND_F( echo, "Echo text to console.", FCVAR_SERVER_CAN_EXECUTE )
|
|
{
|
|
int argc = args.ArgC();
|
|
for ( int i=1; i<argc; i++ )
|
|
{
|
|
ConMsg ("%s ", args[i] );
|
|
}
|
|
ConMsg ("\n");
|
|
}
|
|
|
|
// Users can alias these commands to remove their functionality because the game systems use convars to implement these features
|
|
// The blacklist prevents that exploit
|
|
static const char *g_pBlacklistedCommands[] =
|
|
{
|
|
"dsp_player",
|
|
"room_type",
|
|
};
|
|
/*
|
|
===============
|
|
Cmd_Alias_f
|
|
|
|
Creates a new command that executes a command string (possibly ; seperated)
|
|
===============
|
|
*/
|
|
CON_COMMAND( alias, "Alias a command." )
|
|
{
|
|
cmdalias_t *a;
|
|
char cmd[MAX_COMMAND_LENGTH];
|
|
int c;
|
|
const char *s;
|
|
|
|
int argc = args.ArgC();
|
|
if ( argc == 1 )
|
|
{
|
|
ConMsg ("Current alias commands:\n");
|
|
for (a = cmd_alias ; a ; a=a->next)
|
|
{
|
|
ConMsg ("%s : %s\n", a->name, a->value);
|
|
}
|
|
return;
|
|
}
|
|
|
|
s = args[1];
|
|
if ( Q_strlen(s) >= MAX_ALIAS_NAME )
|
|
{
|
|
ConMsg ("Alias name is too long\n");
|
|
return;
|
|
}
|
|
|
|
for ( int i = 0; i < ARRAYSIZE(g_pBlacklistedCommands); i++ )
|
|
{
|
|
if ( !V_stricmp( g_pBlacklistedCommands[i], s) )
|
|
{
|
|
ConMsg("Can't alias %s\n", g_pBlacklistedCommands[i] );
|
|
return;
|
|
}
|
|
}
|
|
// copy the rest of the command line
|
|
cmd[0] = 0; // start out with a null string
|
|
c = argc;
|
|
for ( int i=2 ; i< c ; i++)
|
|
{
|
|
Q_strncat(cmd, args[i], sizeof( cmd ), COPY_ALL_CHARACTERS);
|
|
if (i != c)
|
|
{
|
|
Q_strncat (cmd, " ", sizeof( cmd ), COPY_ALL_CHARACTERS );
|
|
}
|
|
}
|
|
Q_strncat (cmd, "\n", sizeof( cmd ), COPY_ALL_CHARACTERS);
|
|
|
|
// if the alias already exists, reuse it
|
|
for (a = cmd_alias ; a ; a=a->next)
|
|
{
|
|
if (!Q_strcmp(s, a->name))
|
|
{
|
|
if ( !Q_strcmp( a->value, cmd ) ) // Re-alias the same thing
|
|
return;
|
|
|
|
delete[] a->value;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!a)
|
|
{
|
|
a = (cmdalias_t *)new cmdalias_t;
|
|
a->next = cmd_alias;
|
|
cmd_alias = a;
|
|
}
|
|
Q_strncpy (a->name, s, sizeof( a->name ) );
|
|
|
|
a->value = COM_StringCopy(cmd);
|
|
}
|
|
|
|
/*
|
|
=============================================================================
|
|
|
|
COMMAND EXECUTION
|
|
|
|
=============================================================================
|
|
*/
|
|
|
|
cmd_source_t cmd_source;
|
|
int cmd_clientslot = -1;
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
// Output : void Cmd_Init
|
|
//-----------------------------------------------------------------------------
|
|
CON_COMMAND( cmd, "Forward command to server." )
|
|
{
|
|
Cmd_ForwardToServer( args );
|
|
}
|
|
|
|
CON_COMMAND_AUTOCOMPLETEFILE( exec, Cmd_Exec_f, "Execute script file.", "cfg", cfg );
|
|
|
|
|
|
|
|
|
|
void Cmd_Init( void )
|
|
{
|
|
Sys_CreateFileAssociations( ARRAYSIZE( g_FileAssociations ), g_FileAssociations );
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void Cmd_Shutdown( void )
|
|
{
|
|
// TODO, cleanup
|
|
while ( cmd_alias )
|
|
{
|
|
cmdalias_t *next = cmd_alias->next;
|
|
delete cmd_alias->value; // created by StringCopy()
|
|
delete cmd_alias;
|
|
cmd_alias = next;
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// FIXME: Remove this! This is a temporary hack to deal with backward compat
|
|
//-----------------------------------------------------------------------------
|
|
void Cmd_Dispatch( const ConCommandBase *pCommand, const CCommand &command )
|
|
{
|
|
ConCommand *pConCommand = const_cast<ConCommand*>( static_cast<const ConCommand*>( pCommand ) );
|
|
pConCommand->Dispatch( command );
|
|
}
|
|
|
|
|
|
static void HandleExecutionMarker( const char *pCommand, const char *pMarkerCode )
|
|
{
|
|
char cCommand = pCommand[0];
|
|
int iMarkerCode = atoi( pMarkerCode );
|
|
|
|
// Validate..
|
|
if ( FindAndRemoveExecutionMarker( iMarkerCode ) )
|
|
{
|
|
// Ok, now it's validated, so do the command.
|
|
if ( cCommand == eCmdExecutionMarker_Enable_FCVAR_SERVER_CAN_EXECUTE )
|
|
++g_iFilterCommandsByServerCanExecute;
|
|
else if ( cCommand == eCmdExecutionMarker_Disable_FCVAR_SERVER_CAN_EXECUTE )
|
|
--g_iFilterCommandsByServerCanExecute;
|
|
|
|
else if ( cCommand == eCmdExecutionMarker_Enable_FCVAR_CLIENTCMD_CAN_EXECUTE )
|
|
++g_iFilterCommandsByClientCmdCanExecute;
|
|
else if ( cCommand == eCmdExecutionMarker_Disable_FCVAR_CLIENTCMD_CAN_EXECUTE )
|
|
--g_iFilterCommandsByClientCmdCanExecute;
|
|
}
|
|
else
|
|
{
|
|
static int cnt = 0;
|
|
if ( ++cnt < 3 )
|
|
Warning( "Invalid execution marker code.\n" );
|
|
}
|
|
}
|
|
|
|
static bool ShouldPreventServerCommand( const ConCommandBase *pCommand )
|
|
{
|
|
if ( !Host_IsSinglePlayerGame() )
|
|
{
|
|
if ( g_iFilterCommandsByServerCanExecute > 0 )
|
|
{
|
|
// If we don't understand the command, and it came from a server command, then forward it back to the server.
|
|
// Lots of server plugins use this. They use engine->ClientCommand() to have a client execute a command that
|
|
// they have hooked on the server. We disabled it once and they freaked. It IS redundant since they could just
|
|
// code the call to their command on the server, but they complained loudly enough that we're adding it back in
|
|
// since there's no exploit that we know of by allowing it.
|
|
if ( !pCommand )
|
|
return false;
|
|
|
|
if ( !pCommand->IsFlagSet( FCVAR_SERVER_CAN_EXECUTE ) )
|
|
{
|
|
Warning( "FCVAR_SERVER_CAN_EXECUTE prevented server running command: %s\n", pCommand->GetName() );
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
static bool ShouldPreventClientCommand( const ConCommandBase *pCommand )
|
|
{
|
|
if ( g_iFilterCommandsByClientCmdCanExecute > 0 &&
|
|
!pCommand->IsFlagSet( FCVAR_CLIENTCMD_CAN_EXECUTE ) &&
|
|
g_ExtraClientCmdCanExecuteCvars.Find( pCommand->GetName() ) == g_ExtraClientCmdCanExecuteCvars.InvalidIndex() )
|
|
{
|
|
// If this command is in the game DLL, don't mention it because we're going to forward this
|
|
// request to the server and let the server handle it.
|
|
if ( !pCommand->IsFlagSet( FCVAR_GAMEDLL ) )
|
|
{
|
|
Warning( "FCVAR_CLIENTCMD_CAN_EXECUTE prevented running command: %s\n", pCommand->GetName() );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// A complete command line has been parsed, so try to execute it
|
|
// FIXME: lookupnoadd the token to speed search?
|
|
//-----------------------------------------------------------------------------
|
|
const ConCommandBase *Cmd_ExecuteCommand( const CCommand &command, cmd_source_t src, int nClientSlot )
|
|
{
|
|
// execute the command line
|
|
if ( !command.ArgC() )
|
|
return NULL; // no tokens
|
|
|
|
// First, check for execution markers.
|
|
if ( Q_strcmp( command[0], CMDSTR_ADD_EXECUTION_MARKER ) == 0 )
|
|
{
|
|
if ( command.ArgC() == 3 )
|
|
{
|
|
HandleExecutionMarker( command[1], command[2] );
|
|
}
|
|
else
|
|
{
|
|
Warning( "WARNING: INVALID EXECUTION MARKER.\n" );
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
// check alias
|
|
cmdalias_t *a;
|
|
for ( a=cmd_alias; a; a=a->next )
|
|
{
|
|
if ( !Q_strcasecmp( command[0], a->name ) )
|
|
{
|
|
Cbuf_InsertText( a->value );
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
cmd_source = src;
|
|
cmd_clientslot = nClientSlot;
|
|
|
|
// check ConCommands
|
|
const ConCommandBase *pCommand = g_pCVar->FindCommandBase( command[ 0 ] );
|
|
|
|
// If we prevent a server command due to FCVAR_SERVER_CAN_EXECUTE not being set, then we get out immediately.
|
|
if ( ShouldPreventServerCommand( pCommand ) )
|
|
return NULL;
|
|
|
|
if ( pCommand && pCommand->IsCommand() )
|
|
{
|
|
if ( !ShouldPreventClientCommand( pCommand ) && pCommand->IsCommand() )
|
|
{
|
|
bool isServerCommand = ( pCommand->IsFlagSet( FCVAR_GAMEDLL ) &&
|
|
// Typed at console
|
|
cmd_source == src_command &&
|
|
// Not HLDS
|
|
!sv.IsDedicated() );
|
|
|
|
// Hook to allow game .dll to figure out who type the message on a listen server
|
|
if ( serverGameClients )
|
|
{
|
|
// We're actually the server, so set it up locally
|
|
if ( sv.IsActive() )
|
|
{
|
|
g_pServerPluginHandler->SetCommandClient( cmd_source == src_client ? nClientSlot : -1 );
|
|
|
|
#ifndef SWDS
|
|
// Special processing for listen server player
|
|
if ( isServerCommand )
|
|
{
|
|
g_pServerPluginHandler->SetCommandClient( cl.m_nPlayerSlot );
|
|
}
|
|
#endif
|
|
}
|
|
// We're not the server, but we've been a listen server (game .dll loaded)
|
|
// forward this command tot he server instead of running it locally if we're still
|
|
// connected
|
|
// Otherwise, things like "say" won't work unless you quit and restart
|
|
else if ( isServerCommand )
|
|
{
|
|
if ( cl.IsConnected() )
|
|
{
|
|
Cmd_ForwardToServer( command );
|
|
return NULL;
|
|
}
|
|
|
|
// It's a server command, but we're not connected to a server. Don't try to execute it.
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
// Allow cheat commands in singleplayer, debug, or multiplayer with sv_cheats on
|
|
if ( pCommand->IsFlagSet( FCVAR_CHEAT ) )
|
|
{
|
|
if ( !Host_IsSinglePlayerGame() && !CanCheat() )
|
|
{
|
|
// But.. if the server is allowed to run this command and the server DID run this command, then let it through.
|
|
// (used by soundscape_flush)
|
|
if ( g_iFilterCommandsByServerCanExecute == 0 || !pCommand->IsFlagSet( FCVAR_SERVER_CAN_EXECUTE ) )
|
|
{
|
|
Msg( "Can't use cheat command %s in multiplayer, unless the server has sv_cheats set to 1.\n", pCommand->GetName() );
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( pCommand->IsFlagSet( FCVAR_SPONLY ) )
|
|
{
|
|
if ( !Host_IsSinglePlayerGame() )
|
|
{
|
|
Msg( "Can't use command %s in multiplayer.\n", pCommand->GetName() );
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if ( pCommand->IsFlagSet( FCVAR_DEVELOPMENTONLY ) )
|
|
{
|
|
Msg( "Unknown command \"%s\"\n", pCommand->GetName() );
|
|
return NULL;
|
|
}
|
|
|
|
Cmd_Dispatch( pCommand, command );
|
|
return pCommand;
|
|
}
|
|
}
|
|
|
|
// Bail out before we update convars if we're runnign in default mode.
|
|
if ( pCommand && src == src_command && CommandLine()->CheckParm( "-default" ) && !pCommand->IsFlagSet( FCVAR_EXEC_DESPITE_DEFAULT ) )
|
|
{
|
|
Msg( "Ignoring cvar \"%s\" due to -default on command line\n", pCommand->GetName() );
|
|
return NULL;
|
|
}
|
|
|
|
// check cvars
|
|
if ( cv->IsCommand( command ) )
|
|
return pCommand;
|
|
|
|
// forward the command line to the server, so the entity DLL can parse it
|
|
if ( cmd_source == src_command )
|
|
{
|
|
if ( cl.IsConnected() )
|
|
{
|
|
Cmd_ForwardToServer( command );
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
Msg( "Unknown command \"%s\"\n", command[0] );
|
|
return NULL;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Sends the entire command line over to the server
|
|
//-----------------------------------------------------------------------------
|
|
void Cmd_ForwardToServer( const CCommand &args, bool bReliable )
|
|
{
|
|
// YWB 6/3/98 Don't forward if this is a dedicated server
|
|
#ifndef SWDS
|
|
char str[1024];
|
|
|
|
#ifndef _XBOX
|
|
if ( demoplayer->IsPlayingBack() )
|
|
return; // not really connected
|
|
#endif
|
|
|
|
str[0] = 0;
|
|
if ( Q_strcasecmp( args[0], "cmd") != 0 )
|
|
{
|
|
Q_strncat( str, args[0], sizeof( str ), COPY_ALL_CHARACTERS );
|
|
Q_strncat( str, " ", sizeof( str ), COPY_ALL_CHARACTERS );
|
|
}
|
|
|
|
if ( args.ArgC() > 1)
|
|
{
|
|
Q_strncat( str, args.ArgS(), sizeof( str ), COPY_ALL_CHARACTERS );
|
|
}
|
|
|
|
cl.SendStringCmd( str );
|
|
#endif
|
|
}
|