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engine: server: port old engine's userinfo penalty

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This commit is contained in:
Alibek Omarov 2023-06-15 04:46:22 +03:00
parent a8dbec56c3
commit 243c3cc80f
3 changed files with 73 additions and 2 deletions
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10
engine/server/server.h
View File

@ -261,6 +261,11 @@ typedef struct sv_client_s
int ignorecmdtime_warns; // how many times client time was faster than server during this session
qboolean ignorecmdtime_warned; // did we warn our server operator in the log for this batch of commands?
double fullupdate_next_calltime;
double userinfo_next_changetime;
double userinfo_penalty;
int userinfo_change_attempts;
} sv_client_t;
/*
@ -462,6 +467,10 @@ extern convar_t sv_novis;
extern convar_t sv_hostmap;
extern convar_t sv_validate_changelevel;
extern convar_t sv_maxclients;
extern convar_t sv_userinfo_enable_penalty;
extern convar_t sv_userinfo_penalty_time;
extern convar_t sv_userinfo_penalty_multiplier;
extern convar_t sv_userinfo_penalty_attempts;
//===========================================================
//
@ -479,7 +488,6 @@ int SV_CalcPacketLoss( sv_client_t *cl );
void SV_ExecuteUserCommand (char *s);
void SV_InitOperatorCommands( void );
void SV_KillOperatorCommands( void );
void SV_UserinfoChanged( sv_client_t *cl );
void SV_RemoteCommand( netadr_t from, sizebuf_t *msg );
void SV_PrepWorldFrame( void );
void SV_ProcessFile( sv_client_t *cl, const char *filename );

54
engine/server/sv_client.c
View File

@ -42,6 +42,8 @@ typedef struct ucmd_s
static int g_userid = 1;
static void SV_UserinfoChanged( sv_client_t *cl );
/*
=================
SV_GetPlayerCount
@ -1775,6 +1777,50 @@ static qboolean SV_Pause_f( sv_client_t *cl )
return true;
}
static qboolean SV_ShouldUpdateUserinfo( sv_client_t *cl )
{
qboolean allow = true; // predict state
if( !sv_userinfo_enable_penalty.value )
return allow;
if( FBitSet( cl->flags, FCL_FAKECLIENT ))
return allow;
// start from 1 second
if( !cl->userinfo_penalty )
cl->userinfo_penalty = sv_userinfo_penalty_time.value;
// player changes userinfo after limit time window, but before
// next timewindow
// he seems to be spammer, so just increase change attempts
if( host.realtime < cl->userinfo_next_changetime + cl->userinfo_penalty * sv_userinfo_penalty_multiplier.value )
{
// player changes userinfo too quick! ignore!
if( host.realtime < cl->userinfo_next_changetime )
{
Con_Reportf( "SV_ShouldUpdateUserinfo: ignore userinfo update for %s: penalty %f, attempts %i\n",
cl->name, cl->userinfo_penalty, cl->userinfo_change_attempts );
allow = false;
}
cl->userinfo_change_attempts++;
}
// they spammed too fast, increase penalty
if( cl->userinfo_change_attempts > sv_userinfo_penalty_attempts.value )
{
Con_Reportf( "SV_ShouldUpdateUserinfo: penalty set %f for %s\n",
cl->userinfo_penalty, cl->name );
cl->userinfo_penalty *= sv_userinfo_penalty_multiplier.value;
cl->userinfo_change_attempts = 0;
}
cl->userinfo_next_changetime = host.realtime + cl->userinfo_penalty;
return allow;
}
/*
=================
SV_UserinfoChanged
@ -1783,7 +1829,7 @@ Pull specific info from a newly changed userinfo string
into a more C freindly form.
=================
*/
void SV_UserinfoChanged( sv_client_t *cl )
static void SV_UserinfoChanged( sv_client_t *cl )
{
int i, dupc = 1;
edict_t *ent = cl->edict;
@ -1794,6 +1840,12 @@ void SV_UserinfoChanged( sv_client_t *cl )
if( !COM_CheckString( cl->userinfo ))
return;
if( !SV_ShouldUpdateUserinfo( cl ))
return;
if( !Info_IsValid( cl->userinfo ))
return;
val = Info_ValueForKey( cl->userinfo, "name" );
Q_strncpy( name2, val, sizeof( name2 ));
COM_TrimSpace( name2, name1 );

11
engine/server/sv_main.c
View File

@ -140,6 +140,12 @@ static CVAR_DEFINE_AUTO( sv_allow_touch, "1", FCVAR_ARCHIVE, "allow connect with
static CVAR_DEFINE_AUTO( sv_allow_vr, "1", FCVAR_ARCHIVE, "allow connect from vr version" );
static CVAR_DEFINE_AUTO( sv_allow_noinputdevices, "1", FCVAR_ARCHIVE, "allow connect from old versions without useragent" );
CVAR_DEFINE_AUTO( sv_userinfo_enable_penalty, "1", FCVAR_ARCHIVE, "enable penalty time for too fast userinfo updates(name, model, etc)" );
CVAR_DEFINE_AUTO( sv_userinfo_penalty_time, "0.3", FCVAR_ARCHIVE, "initial penalty time" );
CVAR_DEFINE_AUTO( sv_userinfo_penalty_multiplier, "2", FCVAR_ARCHIVE, "penalty time multiplier" );
CVAR_DEFINE_AUTO( sv_userinfo_penalty_attempts, "4", FCVAR_ARCHIVE, "if max attempts count was exceeded, penalty time will be increased" );
//============================================================================
/*
================
@ -928,6 +934,11 @@ void SV_Init( void )
Cvar_RegisterVariable( &sv_allow_vr );
Cvar_RegisterVariable( &sv_allow_noinputdevices );
Cvar_RegisterVariable( &sv_userinfo_enable_penalty );
Cvar_RegisterVariable( &sv_userinfo_penalty_time );
Cvar_RegisterVariable( &sv_userinfo_penalty_multiplier );
Cvar_RegisterVariable( &sv_userinfo_penalty_attempts );
// when we in developer-mode automatically turn cheats on
if( host_developer.value ) Cvar_SetValue( "sv_cheats", 1.0f );