MQWarp/MQZone/MQGate Detector (Code Name: The VZTZ Hammer!)

[TheLieka]

May god have mercy on my soul for trying to diff this. I apologize that a lot of it will be redundant checks, but we've had to tweak it quite a bit to get it to the point where it is now. We only have false alarms when we hit a massive lag spike (which happens on occasion), but the only way around that would be to allow massive distance updates all the time - which defeats the purpose.

I know this won't fit into one post, and probably won't even fit into 3 or 4, but I'll do my best to get it all in.

Ok, *gulp* here goes.

Anti-MQ /Warp, Anti-MQ /Gate, Anti-MQ /zone, Anti-MQ /ghost code from the Vallon Zek/Tallon Zek Server:

In addition to myself, contributions to this code came from Rancar and Null.

.\common\ruletypes.h

After:

RULE_BOOL ( Zone, EnableShadowrest, 0 ) // enables or disables the shadowrest zone feature for player corpses. Default is turned off.

Add:

RULE_INT ( Zone, MQWarpExemptStatus, 50 ) //Lieka:  Required status level to exempt the MQWarpDetector.  Set to -1 to disable this feature.
RULE_INT ( Zone, MQZoneExemptStatus, 50 ) //Lieka:  Required status level to exempt the MQWarpDetector.  Set to -1 to disable this feature.
RULE_INT ( Zone, MQGateExemptStatus, 50 ) //Lieka:  Required status level to exempt the MQWarpDetector.  Set to -1 to disable this feature.
RULE_INT ( Zone, MQGhostExemptStatus, 50 ) //Lieka:  Required status level to exempt the MQWarpDetector.  Set to -1 to disable this feature.
RULE_BOOL ( Zone, EnableMQWarpDetector, False ) //Lieka:  Enable the MQWarp Detector.  Set to False to disable this feature.
RULE_BOOL ( Zone, EnableMQZoneDetector, False ) //Lieka:  Enable the MQZone Detector.  Set to False to disable this feature.
RULE_BOOL ( Zone, EnableMQGateDetector, False ) //Lieka:  Enable the MQGate Detector.  Set to False to disable this feature.
RULE_BOOL ( Zone, EnableMQGhostDetector, False ) //Lieka:  Enable the MQGhost Detector.  Set to False to disable this feature.
RULE_REAL ( Zone, MQWarpDetectorDistance, 30 ) //Lieka:  Distance a player must travel between client to server location updates before a warp is registered.  30 allows for beyond GM speed without lag.
RULE_REAL ( Zone, MQWarpLagThreshold, 140 ) //Lieka:  Distance beyond the Zone:MQWarpDetectorDistance that a player must travel within the MQWarpThresholdTimer amount of time before tripping the MQWarp detector.  Set to 0 to disable this feature.
RULE_REAL ( Zone, MQWarpThresholdTimer, 90000 ) //Lieka:  Amount of time before the warp_threshold resets to the Zone:MQWarpLagThreshold value.  Default: 90000 (900 seconds/15 minutes).  Set to -1 to disable this feature.
RULE_INT ( Zone, MQWarpDetectionSpellID, 757 ) //Lieka:  Which spell ID will be cast on players that incur the hammer of the MQ Detector.  This spell will be actually cast, don't pick a resistible spell.  Default: 757 (Resurrection Effects)
RULE_INT ( Zone, MQGateDetectionSpellID, 757 ) //Lieka:  Which spell ID debuff will be cast on players that incur the hammer of the MQGateDetector.  This spell will be added as a debuff while zoning.  Default: 757 (Resurrection Effects)
RULE_INT ( Zone, MQZoneDetectionSpellID, 757 ) //Lieka:  Which spell ID debuff will be cast on players that incur the hammer of the MQGateDetector.  This spell will be added as a debuff while zoning.  Default: 757 (Resurrection Effects)
RULE_INT ( Zone, MQGhostDetectionSpellID, 757 ) //Lieka:  Which spell ID will be cast on players that incur the hammer of the MQGhostDetector.  This spell will be actually cast, don't pick a resistable spell.  Default: 757 (Resurrection Effects)

.\common\database.h

After:

bool	SetHackerFlag(const char* accountname, const char* charactername, const char* hacked);

Add:

bool	SetMQDetectionFlag(const char* accountname, const char* charactername, const char* hacked, const char* zone);

.\common\database.cpp

After:

bool Database::SetHackerFlag(const char* accountname, const char* charactername, const char* hacked) {
	char errbuf[MYSQL_ERRMSG_SIZE];
	char *query = 0;
	int32	affected_rows = 0;
	if (!RunQuery(query, MakeAnyLenString(&query, "INSERT INTO hackers(account,name,hacked) values('%s','%s','%s')", accountname, charactername, hacked), errbuf, 0,&affected_rows)) {
		cerr << "Error in SetHackerFlag query '" << query << "' " << errbuf << endl;
		return false;
	}
	safe_delete_array(query);
	
	if (affected_rows == 0)
	{
		return false;
	}
	
	return true;
}

Add:

bool Database::SetMQDetectionFlag(const char* accountname, const char* charactername, const char* hacked, const char* zone) { //Lieka:  Utilize the "hacker" table, but also give zone information.
	char errbuf[MYSQL_ERRMSG_SIZE];
	char *query = 0;
	int32	affected_rows = 0;
	if (!RunQuery(query, MakeAnyLenString(&query, "INSERT INTO hackers(account,name,hacked,zone) values('%s','%s','%s','%s')", accountname, charactername, hacked, zone), errbuf, 0,&affected_rows)) {
		cerr << "Error in SetMQDetectionFlag query '" << query << "' " << errbuf << endl;
		return false;
	}
	safe_delete_array(query);
	
	if (affected_rows == 0)
	{
		return false;
	}
	
	return true;
}

.\zone\client.h

After:

typedef enum {
	ZoneToSafeCoords,		// Always send ZonePlayerToBind_Struct to client: Succor/Evac
	GMSummon,				// Always send ZonePlayerToBind_Struct to client: Only a GM Summon
	ZoneToBindPoint,		// Always send ZonePlayerToBind_Struct to client: Death Only
	ZoneSolicited,			// Always send ZonePlayerToBind_Struct to client: Portal, Translocate, Evac spells that have a x y z coord in the spell data
	ZoneUnsolicited,
	GateToBindPoint,		// Always send RequestClientZoneChange_Struct to client: Gate spell or Translocate To Bind Point spell
	SummonPC,				// In-zone GMMove() always: Call of the Hero spell or some other type of in zone only summons
	EvacToSafeCoords
} ZoneMode;

Add:

typedef enum {
	MQWarp,
	MQZone,
	MQGate,
	MQGhost
} CheatTypes;

After:

	void	AI_Init();
	void	AI_Start(int32 iMoveDelay = 0);
	void	AI_Stop();
	void	Trader_ShowItems();
	void	Trader_EndTrader();
	void	Trader_StartTrader();
	int8	WithCustomer();
	bool	CheckCheat();

Add:

	void	CheatDetected(CheatTypes Cheat);
	bool	WarpDetection(bool CTimer, float Distance);

.\zone\client.cpp

Change (Insert Red Lines):

bool Client::CheckCheat(){
	
		float dx=cheat_x-x_pos;
		float dy=cheat_y-y_pos;
		float result=sqrtf((dx*dx)+(dy*dy));
		return result>(RuleR(Zone, MQWarpDetectorDistance)); //Lieka:  Integrated into Rules System; default value is 30, this allows for beyond GM speed without lag.