bool AntiCheat::CheckMountain()
{
if (m_currentmovementInfo->HasMovementFlag(MovementFlags(MOVEFLAG_FLYING | MOVEFLAG_SWIMMING)))
return true;
if ( m_currentDeltaZ > 0 )
return true;
int serverDelta = WorldTimer::getMSTimeDiff(m_oldCheckTime[CHECK_MOVEMENT_MOUNTAIN],WorldTimer::getMSTime());
float zSpeed = - m_currentDeltaZ / serverDelta;
float tg_z = (m_currentDelta > 0.0f) ? (-m_currentDeltaZ / m_currentDelta) : -99999;
if (tg_z < m_currentConfig->checkFloatParam[1] || zSpeed < m_currentConfig->checkFloatParam[0] )
return true;
char buffer[255];
sprintf(buffer," deltaZ %e, angle %e, speedZ %e ",
m_currentDeltaZ, tg_z, zSpeed);
m_currentCheckResult.clear();
m_currentCheckResult.append(buffer);
return false;
}
bool AntiCheat::CheckFly()
{
if (GetMover()->GetTerrain()->IsUnderWater(m_currentmovementInfo->GetPos()->x, m_currentmovementInfo->GetPos()->y, m_currentmovementInfo->GetPos()->z - 2.0f))
return true;
if (!m_currentmovementInfo->HasMovementFlag(MovementFlags(MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING | MOVEFLAG_ROOT)))
return true;
if (GetMover()->HasAuraType(SPELL_AURA_FEATHER_FALL))
return true;
float ground_z = GetMover()->GetTerrain()->GetHeight(GetPlayer()->GetPositionX(),GetPlayer()->GetPositionY(),MAX_HEIGHT);
float floor_z = GetMover()->GetTerrain()->GetHeight(GetPlayer()->GetPositionX(),GetPlayer()->GetPositionY(),GetPlayer()->GetPositionZ());
float map_z = ((floor_z <= (INVALID_HEIGHT+5.0f)) ? ground_z : floor_z);
if (map_z + m_currentConfig->checkFloatParam[0] > GetPlayer()->GetPositionZ() && map_z > (INVALID_HEIGHT + m_currentConfig->checkFloatParam[0] + 5.0f))
return true;
if (m_currentDeltaZ > 0.0f)
return true;
char buffer[255];
sprintf(buffer," flying without fly auras on height %e but allowed %e",
GetPlayer()->GetPositionZ(), map_z + m_currentConfig->checkFloatParam[0]);
m_currentCheckResult.clear();
m_currentCheckResult.append(buffer);
return false;
}
void WorldSession::HandleMoveKnockBackAck( WorldPacket & recv_data )
{
// CHECK_PACKET_SIZE(recv_data,?);
sLog.outDebug("CMSG_MOVE_KNOCK_BACK_ACK");
// Currently not used but maybe use later for recheck final player position
// (must be at call same as into "recv_data >> x >> y >> z >> orientation;"
/* extract packet */
MovementInfo movementInfo;
uint32 unk1,unk2,unk3;
recv_data >> unk1 >> unk2 >> unk3;
ReadMovementInfo(recv_data, &movementInfo);
//Save movement flags
_player->m_movementInfo.SetMovementFlags(MovementFlags(movementInfo.flags));
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outBasic("%s CMSG_MOVE_KNOCK_BACK_ACK: tm:%d ftm:%d | %f,%f,%fo(%f) [%X]",GetPlayer()->GetName(),movementInfo.time,movementInfo.fallTime,movementInfo.x,movementInfo.y,movementInfo.z,movementInfo.o,movementInfo.flags);
sLog.outBasic("%s CMSG_MOVE_KNOCK_BACK_ACK additional: vspeed:%f, hspeed:%f",GetPlayer()->GetName(), movementInfo.j_unk, movementInfo.j_xyspeed);
#endif
_player->m_movementInfo = movementInfo;
_player->m_anti_Last_HSpeed = movementInfo.j_xyspeed;
_player->m_anti_Last_VSpeed = movementInfo.j_unk < 3.2f ? movementInfo.j_unk - 1.0f : 3.2f;
uint32 dt = (_player->m_anti_Last_VSpeed < 0) ? (int)(ceil(_player->m_anti_Last_VSpeed/-25)*1000) : (int)(ceil(_player->m_anti_Last_VSpeed/25)*1000);
_player->m_anti_LastSpeedChangeTime = movementInfo.time + dt + 1000;
}
void WorldSession::ReadMovementInfo(WorldPacket &data, MovementInfo *mi)
{
CHECK_PACKET_SIZE(data, data.rpos()+4+2+4+4+4+4+4);
data >> mi->flags;
data >> mi->unk1;
data >> mi->time;
data >> mi->x;
data >> mi->y;
data >> mi->z;
data >> mi->o;
if(mi->HasMovementFlag(MOVEMENTFLAG_ONTRANSPORT))
{
if(!data.readPackGUID(mi->t_guid))
return;
CHECK_PACKET_SIZE(data, data.rpos()+4+4+4+4+4+1);
data >> mi->t_x;
data >> mi->t_y;
data >> mi->t_z;
data >> mi->t_o;
data >> mi->t_time;
data >> mi->t_seat;
}
if((mi->HasMovementFlag(MovementFlags(MOVEMENTFLAG_SWIMMING | MOVEMENTFLAG_FLYING2))) || (mi->unk1 & 0x20))
{
CHECK_PACKET_SIZE(data, data.rpos()+4);
data >> mi->s_pitch;
}
void MotionMaster::MoveFall(float z, uint32 id)
{
i_owner->RemoveByteFlag(UNIT_FIELD_BYTES_1, 3, 0x02);
i_owner->m_movementInfo.RemoveMovementFlag(MovementFlags(MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING));
i_owner->SetFacingTo(i_owner->GetOrientation());
//AddUnitMovementFlag(MOVEMENTFLAG_FALLING);
MoveCharge(i_owner->GetPositionX(), i_owner->GetPositionY(), z, 3.0f, id);
}
MoveSplineInit::MoveSplineInit(Unit& m) : unit(m)
{
args.splineId = splineIdGen.NewId();
// Elevators also use MOVEMENTFLAG_ONTRANSPORT but we do not keep track of their position changes
args.TransformForTransport = unit.GetTransGUID();
// mix existing state into new
args.flags.walkmode = unit.m_movementInfo.HasMovementFlag(MOVEMENTFLAG_WALKING);
args.flags.flying = unit.m_movementInfo.HasMovementFlag(MovementFlags(MOVEMENTFLAG_CAN_FLY | MOVEMENTFLAG_DISABLE_GRAVITY));
args.flags.smoothGroundPath = true; // enabled by default, CatmullRom mode or client config "pathSmoothing" will disable this
}
void MoveSplineInit::Stop()
{
MoveSpline& move_spline = *unit.movespline;
// No need to stop if we are not moving
if (move_spline.Finalized())
return;
// ToDo: update transport info if required
// TransportInfo* transportInfo = unit.GetTransportInfo();
Location real_position(unit.GetPositionX(), unit.GetPositionY(), unit.GetPositionZ(), unit.GetOrientation());
// If boarded use current local position
// if (transportInfo)
// transportInfo->GetLocalPosition(real_position.x, real_position.y, real_position.z, real_position.orientation);
// there is a big chance that current position is unknown if current state is not finalized, need compute it
// this also allows calculate spline position and update map position in much greater intervals
if (!move_spline.Finalized() /*&& !transportInfo*/)
real_position = move_spline.ComputePosition();
if (args.path.empty())
{
// should i do the things that user should do?
MoveTo(real_position);
}
// current first vertex
args.path[0] = real_position;
args.flags = MoveSplineFlag::Done;
unit.m_movementInfo.RemoveMovementFlag(MovementFlags(MOVEFLAG_FORWARD | MOVEFLAG_SPLINE_ENABLED));
move_spline.Initialize(args);
WorldPacket data(SMSG_MONSTER_MOVE, 64);
data << unit.GetPackGUID();
// ToDo: update transport info if required
/*if (transportInfo)
{
data.SetOpcode(SMSG_MONSTER_MOVE_TRANSPORT);
data << transportInfo->GetTransportGuid().WriteAsPacked();
}*/
data << real_position.x << real_position.y << real_position.z;
data << move_spline.GetId();
data << uint8(MonsterMoveStop);
unit.SendMessageToSet(&data, true);
}
void WorldSession::HandleLogoutRequestOpcode( WorldPacket & /*recv_data*/ )
{
DEBUG_LOG( "WORLD: Recvd CMSG_LOGOUT_REQUEST Message, security - %u", GetSecurity() );
if (ObjectGuid lootGuid = GetPlayer()->GetLootGuid())
DoLootRelease(lootGuid);
//Can not logout if...
if( GetPlayer()->isInCombat() || //...is in combat
GetPlayer()->duel || //...is in Duel
//...is jumping ...is falling
GetPlayer()->m_movementInfo.HasMovementFlag(MovementFlags(MOVEFLAG_FALLING | MOVEFLAG_FALLINGFAR)))
{
WorldPacket data( SMSG_LOGOUT_RESPONSE, (2+4) ) ;
data << (uint8)0xC;
data << uint32(0);
data << uint8(0);
SendPacket( &data );
LogoutRequest(0);
return;
}
//instant logout in taverns/cities or on taxi or for admins, gm's, mod's if its enabled in mangosd.conf
if (GetPlayer()->HasFlag(PLAYER_FLAGS, PLAYER_FLAGS_RESTING) || GetPlayer()->IsTaxiFlying() ||
GetSecurity() >= (AccountTypes)sWorld.getConfig(CONFIG_UINT32_INSTANT_LOGOUT))
{
LogoutPlayer(true);
return;
}
// not set flags if player can't free move to prevent lost state at logout cancel
if(GetPlayer()->CanFreeMove())
{
float height = GetPlayer()->GetTerrain()->GetHeight(GetPlayer()->GetPositionX(), GetPlayer()->GetPositionY(), GetPlayer()->GetPositionZ());
if ((GetPlayer()->GetPositionZ() < height + 0.1f) && !(GetPlayer()->IsInWater()))
GetPlayer()->SetStandState(UNIT_STAND_STATE_SIT);
WorldPacket data( SMSG_FORCE_MOVE_ROOT, (8+4) ); // guess size
data << GetPlayer()->GetPackGUID();
data << (uint32)2;
SendPacket( &data );
GetPlayer()->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_STUNNED);
}
WorldPacket data( SMSG_LOGOUT_RESPONSE, 5 );
data << uint32(0);
data << uint8(0);
SendPacket( &data );
LogoutRequest(time(NULL));
}
void MoveSplineInit::Stop()
{
MoveSpline& move_spline = *unit.movespline;
// No need to stop if we are not moving
if (move_spline.Finalized())
return;
Location real_position(unit.GetPositionX(), unit.GetPositionY(), unit.GetPositionZ(), unit.GetOrientation());
// there is a big chance that current position is unknown if current state is not finalized, need compute it
// this also allows calculate spline position and update map position in much greater intervals
if (!move_spline.Finalized())
real_position = move_spline.ComputePosition();
if (args.path.empty())
{
// should i do the things that user should do?
MoveTo(real_position);
}
// current first vertex
args.path[0] = real_position;
args.flags = MoveSplineFlag::Done;
unit.m_movementInfo.RemoveMovementFlag(MovementFlags(MOVEMENTFLAG_FORWARD | MOVEMENTFLAG_SPLINE_ENABLED));
move_spline.Initialize(args);
WorldPacket data(SMSG_MONSTER_MOVE, 64);
data << unit.GetPackGUID();
data << real_position.x << real_position.y << real_position.z;
data << move_spline.GetId();
data << uint8(MonsterMoveStop);
unit.SendMessageToSet(&data, true);
}
void WorldSession::HandleMoveKnockBackAck( WorldPacket & recv_data )
{
sLog.outDebug("CMSG_MOVE_KNOCK_BACK_ACK");
uint64 guid; // guid - unused
if(!recv_data.readPackGUID(guid))
return;
recv_data.read_skip<uint32>(); // unk
MovementInfo movementInfo;
uint32 unk1,unk2,unk3;
recv_data >> unk1 >> unk2 >> unk3;
ReadMovementInfo(recv_data, &movementInfo);
//Save movement flags
_player->m_movementInfo.SetMovementFlags(MovementFlags(movementInfo.flags));
//recv_data.read_skip<uint64>(); // guid
//recv_data.read_skip<uint32>(); // unk
//MovementInfo movementInfo;
//ReadMovementInfo(recv_data, &movementInfo);
}
void WorldSession::HandleMovementOpcodes( WorldPacket & recv_data )
{
uint32 opcode = recv_data.GetOpcode();
DEBUG_LOG("WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);
recv_data.hexlike();
Unit *mover = _player->GetMover();
Player *plMover = mover->GetTypeId() == TYPEID_PLAYER ? (Player*)mover : NULL;
// ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
if(plMover && plMover->IsBeingTeleported())
{
recv_data.rpos(recv_data.wpos()); // prevent warnings spam
return;
}
/* extract packet */
ObjectGuid guid;
MovementInfo movementInfo;
recv_data >> guid.ReadAsPacked();
recv_data >> movementInfo;
/*----------------*/
if (!VerifyMovementInfo(movementInfo, guid))
return;
// fall damage generation (ignore in flight case that can be triggered also at lags in moment teleportation to another map).
if (opcode == MSG_MOVE_FALL_LAND && plMover && !plMover->IsTaxiFlying())
plMover->HandleFall(movementInfo);
// ---- anti-cheat features -->>>
uint32 Anti_TeleTimeDiff=plMover ? time(NULL) - plMover->Anti__GetLastTeleTime() : time(NULL);
static const uint32 Anti_TeleTimeIgnoreDiff=sWorld.GetMvAnticheatIgnoreAfterTeleport();
if (plMover && (plMover->m_transport == 0) && sWorld.GetMvAnticheatEnable() &&
GetPlayer()->GetSession()->GetSecurity() <= sWorld.GetMvAnticheatGmLevel() &&
GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType()!=FLIGHT_MOTION_TYPE &&
Anti_TeleTimeDiff>Anti_TeleTimeIgnoreDiff)
{
const uint32 CurTime=getMSTime();
if (getMSTimeDiff(GetPlayer()->m_anti_lastalarmtime,CurTime) > sWorld.GetMvAnticheatAlarmPeriod())
{
GetPlayer()->m_anti_alarmcount = 0;
}
/* I really don't care about movement-type yet (todo)
UnitMoveType move_type;
if (movementInfo.flags & MOVEMENTFLAG_FLYING) move_type = MOVE_FLY;
else if (movementInfo.flags & MOVEMENTFLAG_SWIMMING) move_type = MOVE_SWIM;
else if (movementInfo.flags & MOVEMENTFLAG_WALK_MODE) move_type = MOVE_WALK;
else move_type = MOVE_RUN;*/
float delta_x = GetPlayer()->GetPositionX() - movementInfo.GetPos()->x;
float delta_y = GetPlayer()->GetPositionY() - movementInfo.GetPos()->y;
float delta_z = GetPlayer()->GetPositionZ() - movementInfo.GetPos()->z;
float delta = sqrt(delta_x * delta_x + delta_y * delta_y); // Len of movement-vector via Pythagoras (a^2+b^2=Len^2)
float tg_z = 0.0f; //tangens
float delta_t = getMSTimeDiff(GetPlayer()->m_anti_lastmovetime,CurTime);
GetPlayer()->m_anti_lastmovetime = CurTime;
GetPlayer()->m_anti_MovedLen += delta;
if (delta_t > 15000.0f)
{ delta_t = 15000.0f; }
// Tangens of walking angel
if (!(movementInfo.GetMovementFlags() & (MOVEFLAG_FLYING | MOVEFLAG_SWIMMING)))
{
tg_z = ((delta !=0.0f) && (delta_z > 0.0f)) ? (atan((delta_z*delta_z) / delta) * 180.0f / M_PI) : 0.0f;
}
//antiOFF fall-damage, MOVEMENTFLAG_UNK4 seted by client if player try movement when falling and unset in this case the MOVEMENTFLAG_FALLING flag.
if ((!GetPlayer()->CanFly() && GetPlayer()->m_anti_BeginFallZ == INVALID_HEIGHT) &&
(movementInfo.GetMovementFlags() & (MOVEFLAG_FALLING | MOVEFLAG_FALLINGFAR)) != 0)
{
GetPlayer()->m_anti_BeginFallZ=(float)(movementInfo.GetPos()->z);
}
if (GetPlayer()->m_anti_NextLenCheck <= CurTime)
{
// Check every 500ms is a lot more advisable then 1000ms, because normal movment packet arrives every 500ms
uint32 OldNextLenCheck=GetPlayer()->m_anti_NextLenCheck;
float delta_xyt=GetPlayer()->m_anti_MovedLen/(float)(getMSTimeDiff(OldNextLenCheck-500,CurTime));
GetPlayer()->m_anti_NextLenCheck = CurTime+500;
GetPlayer()->m_anti_MovedLen = 0.0f;
static const float MaxDeltaXYT = sWorld.GetMvAnticheatMaxXYT();
if (delta_xyt > MaxDeltaXYT && delta<=100.0f && GetPlayer()->GetZoneId() != 2257)
{
if (sWorld.GetMvAnticheatSpeedCheck())
Anti__CheatOccurred(CurTime,"Speed hack",delta_xyt,LookupOpcodeName(opcode),
(float)(GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType()),
(float)(getMSTimeDiff(OldNextLenCheck-500,CurTime)));
}
}
if (delta > 100.0f && GetPlayer()->GetZoneId() != 2257)
{
if (sWorld.GetMvAnticheatTeleportCheck())
Anti__ReportCheat("Tele hack",delta,LookupOpcodeName(opcode));
}
// Check for waterwalking . Fix new way of checking for waterwalking by Darky88
if (movementInfo.HasMovementFlag(MOVEFLAG_WATERWALKING) &&
!(GetPlayer()->HasAuraType(SPELL_AURA_WATER_WALK) || GetPlayer()->HasAuraType(SPELL_AURA_GHOST)))
{
if(sWorld.GetMvAnticheatWaterCheck())
Anti__CheatOccurred(CurTime,"Water walking",0.0f,NULL,0.0f,(uint32)(movementInfo.GetMovementFlags()));
}
// Check for walking upwards a mountain while not beeing able to do that, New check by Darky88
if ((delta_z < -2.3f) && (tg_z > 2.37f))
{
if (sWorld.GetMvAnticheatMountainCheck())
Anti__CheatOccurred(CurTime,"Mountain hack",tg_z,NULL,delta,delta_z);
}
static const float DIFF_OVERGROUND = 10.0f;
float Anti__GroundZ = GetPlayer()->GetTerrain()->GetHeight(GetPlayer()->GetPositionX(),GetPlayer()->GetPositionY(),MAX_HEIGHT);
float Anti__FloorZ = GetPlayer()->GetTerrain()->GetHeight(GetPlayer()->GetPositionX(),GetPlayer()->GetPositionY(),GetPlayer()->GetPositionZ());
float Anti__MapZ = ((Anti__FloorZ <= (INVALID_HEIGHT+5.0f)) ? Anti__GroundZ : Anti__FloorZ) + DIFF_OVERGROUND;
if (!GetPlayer()->CanFly() &&
!GetPlayer()->GetTerrain()->IsUnderWater(movementInfo.GetPos()->x, movementInfo.GetPos()->y, movementInfo.GetPos()->z-7.0f) &&
Anti__MapZ < GetPlayer()->GetPositionZ() && Anti__MapZ > (INVALID_HEIGHT+DIFF_OVERGROUND + 5.0f))
{
static const float DIFF_AIRJUMP=25.0f; // 25 is realy high, but to many false positives...
// Air-Jump-Detection definitively needs a better way to be detected...
if ((movementInfo.GetMovementFlags() & (MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING | MOVEFLAG_ROOT)) != 0) // Fly Hack
{
// Fix Aura 55164
if (!GetPlayer()->HasAura(55164) || !GetPlayer()->HasAuraType(SPELL_AURA_FEATHER_FALL))
if (sWorld.GetMvAnticheatFlyCheck())
Anti__CheatOccurred(CurTime,"Fly hack",
((uint8)(GetPlayer()->HasAuraType(SPELL_AURA_FLY))) +
((uint8)(GetPlayer()->HasAuraType(SPELL_AURA_MOD_FLIGHT_SPEED_MOUNTED))*2),
NULL,GetPlayer()->GetPositionZ()-Anti__MapZ);
}
// Need a better way to do that - currently a lot of fake alarms
else if ((Anti__MapZ+DIFF_AIRJUMP < GetPlayer()->GetPositionZ() &&
(movementInfo.GetMovementFlags() & (MOVEFLAG_FALLINGFAR | MOVEFLAG_PENDINGSTOP))==0) ||
(Anti__MapZ < GetPlayer()->GetPositionZ() && opcode==MSG_MOVE_JUMP) &&
!GetPlayer()->HasAuraType(SPELL_AURA_FEATHER_FALL))
{
if (sWorld.GetMvAnticheatJumpCheck())
Anti__CheatOccurred(CurTime,"Possible Air Jump Hack",0.0f,LookupOpcodeName(opcode),0.0f,movementInfo.GetMovementFlags());
}
}
/*if(Anti__FloorZ < -199900.0f && Anti__GroundZ >= -199900.0f &&
GetPlayer()->GetPositionZ()+5.0f < Anti__GroundZ)
{
Anti__CheatOccurred(CurTime,"Teleport2Plane hack",
GetPlayer()->GetPositionZ(),NULL,Anti__GroundZ);
}*/
//Teleport To Plane checks
if (movementInfo.GetPos()->z < 0.0001f && movementInfo.GetPos()->z > -0.0001f && (!movementInfo.HasMovementFlag(MovementFlags(MOVEFLAG_SWIMMING | MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING))))
{
if(sWorld.GetMvAnticheatTeleport2PlaneCheck())
{
// Prevent using TeleportToPlan.
Map *map = GetPlayer()->GetMap();
if (map)
{
float plane_z = map->GetTerrain()->GetHeight(movementInfo.GetPos()->x, movementInfo.GetPos()->y, MAX_HEIGHT) - movementInfo.GetPos()->z;
plane_z = (plane_z < -500.0f) ? 0 : plane_z; //check holes in heigth map
if(plane_z > 0.1f || plane_z < -0.1f)
{
if(sWorld.GetMvAnticheatTeleport2PlaneCheck())
Anti__CheatOccurred(CurTime,"Teleport2Plane hack",GetPlayer()->GetPositionZ(),NULL,plane_z);
}
}
}
}
}
// <<---- anti-cheat features
/* process position-change */
HandleMoverRelocation(movementInfo);
if (plMover)
plMover->UpdateFallInformationIfNeed(movementInfo, opcode);
// after move info set
if (opcode == MSG_MOVE_SET_WALK_MODE || opcode == MSG_MOVE_SET_RUN_MODE)
mover->UpdateWalkMode(mover, false);
WorldPacket data(opcode, recv_data.size());
data << mover->GetPackGUID(); // write guid
movementInfo.Write(data); // write data
mover->SendMessageToSetExcept(&data, _player);
}
void WorldSession::HandleMovementOpcodes( WorldPacket & recv_data )
{
uint32 opcode = recv_data.GetOpcode();
DEBUG_LOG("WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);
recv_data.hexlike();
Unit *mover = _player->GetMover();
Player *plMover = mover->GetTypeId() == TYPEID_PLAYER ? (Player*)mover : NULL;
// ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
if (plMover && plMover->IsBeingTeleported())
{
recv_data.rpos(recv_data.wpos()); // prevent warnings spam
return;
}
/* extract packet */
ObjectGuid guid;
MovementInfo movementInfo;
recv_data >> guid.ReadAsPacked();
recv_data >> movementInfo;
/*----------------*/
if (!Diamond::IsValidMapCoord(movementInfo.GetPos()->x, movementInfo.GetPos()->y, movementInfo.GetPos()->z, movementInfo.GetPos()->o))
{
recv_data.rpos(recv_data.wpos()); // prevent warnings spam
return;
}
/* handle special cases */
if (movementInfo.HasMovementFlag(MOVEFLAG_ONTRANSPORT))
{
// transports size limited
// (also received at zeppelin/lift leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
if ( movementInfo.GetTransportPos()->x > 50 || movementInfo.GetTransportPos()->y > 50 || movementInfo.GetTransportPos()->z > 100 )
{
recv_data.rpos(recv_data.wpos()); // prevent warnings spam
return;
}
if ( !Diamond::IsValidMapCoord(movementInfo.GetPos()->x + movementInfo.GetTransportPos()->x, movementInfo.GetPos()->y + movementInfo.GetTransportPos()->y,
movementInfo.GetPos()->z + movementInfo.GetTransportPos()->z, movementInfo.GetPos()->o + movementInfo.GetTransportPos()->o) )
{
recv_data.rpos(recv_data.wpos()); // prevent warnings spam
return;
}
// if we boarded a transport, add us to it
if (plMover && !plMover->m_transport)
{
float trans_rad = movementInfo.GetTransportPos()->x*movementInfo.GetTransportPos()->x + movementInfo.GetTransportPos()->y*movementInfo.GetTransportPos()->y + movementInfo.GetTransportPos()->z*movementInfo.GetTransportPos()->z;
if (trans_rad > 3600.0f) // transport radius = 60 yards //cheater with on_transport_flag
{
return;
}
// elevators also cause the client to send MOVEFLAG_ONTRANSPORT - just unmount if the guid can be found in the transport list
for (MapManager::TransportSet::const_iterator iter = sMapMgr.m_Transports.begin(); iter != sMapMgr.m_Transports.end(); ++iter)
{
if ((*iter)->GetObjectGuid() == movementInfo.GetTransportGuid())
{
plMover->m_transport = (*iter);
(*iter)->AddPassenger(plMover);
if (plMover->GetVehicleKit())
plMover->GetVehicleKit()->RemoveAllPassengers();
break;
}
}
}
}
else if (plMover && plMover->m_transport) // if we were on a transport, leave
{
plMover->m_transport->RemovePassenger(plMover);
plMover->m_transport = NULL;
movementInfo.ClearTransportData();
}
// fall damage generation (ignore in flight case that can be triggered also at lags in moment teleportation to another map).
if (opcode == MSG_MOVE_FALL_LAND && plMover && !plMover->IsTaxiFlying())
plMover->HandleFall(movementInfo);
if (plMover && (movementInfo.HasMovementFlag(MOVEFLAG_SWIMMING) != plMover->IsInWater()))
{
// now client not include swimming flag in case jumping under water
plMover->SetInWater( !plMover->IsInWater() || plMover->GetBaseMap()->IsUnderWater(movementInfo.GetPos()->x, movementInfo.GetPos()->y, movementInfo.GetPos()->z) );
if (plMover->GetBaseMap()->IsUnderWater(movementInfo.GetPos()->x, movementInfo.GetPos()->y, movementInfo.GetPos()->z-7.0f))
{
plMover->m_anti_BeginFallZ=INVALID_HEIGHT;
}
}
// ---- anti-cheat features -->>>
uint32 Anti_TeleTimeDiff=plMover ? time(NULL) - plMover->Anti__GetLastTeleTime() : time(NULL);
static const uint32 Anti_TeleTimeIgnoreDiff=sWorld.GetMvAnticheatIgnoreAfterTeleport();
if (plMover && (plMover->m_transport == 0) && sWorld.GetMvAnticheatEnable() &&
GetPlayer()->GetSession()->GetSecurity() <= sWorld.GetMvAnticheatGmLevel() &&
GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType()!=FLIGHT_MOTION_TYPE &&
Anti_TeleTimeDiff>Anti_TeleTimeIgnoreDiff)
{
const uint32 CurTime=getMSTime();
if (getMSTimeDiff(GetPlayer()->m_anti_lastalarmtime,CurTime) > sWorld.GetMvAnticheatAlarmPeriod())
{
GetPlayer()->m_anti_alarmcount = 0;
}
/* I really don't care about movement-type yet (todo)
UnitMoveType move_type;
if (movementInfo.flags & MOVEMENTFLAG_FLYING) move_type = MOVE_FLY;
else if (movementInfo.flags & MOVEMENTFLAG_SWIMMING) move_type = MOVE_SWIM;
else if (movementInfo.flags & MOVEMENTFLAG_WALK_MODE) move_type = MOVE_WALK;
else move_type = MOVE_RUN;*/
float delta_x = GetPlayer()->GetPositionX() - movementInfo.GetPos()->x;
float delta_y = GetPlayer()->GetPositionY() - movementInfo.GetPos()->y;
float delta_z = GetPlayer()->GetPositionZ() - movementInfo.GetPos()->z;
float delta = sqrt(delta_x * delta_x + delta_y * delta_y); // Len of movement-vector via Pythagoras (a^2+b^2=Len^2)
float tg_z = 0.0f; //tangens
float delta_t = getMSTimeDiff(GetPlayer()->m_anti_lastmovetime,CurTime);
GetPlayer()->m_anti_lastmovetime = CurTime;
GetPlayer()->m_anti_MovedLen += delta;
if (delta_t > 15000.0f)
{ delta_t = 15000.0f; }
// Tangens of walking angel
if (!(movementInfo.GetMovementFlags() & (MOVEFLAG_FLYING | MOVEFLAG_SWIMMING)))
{
tg_z = ((delta !=0.0f) && (delta_z > 0.0f)) ? (atan((delta_z*delta_z) / delta) * 180.0f / M_PI) : 0.0f;
}
//antiOFF fall-damage, MOVEMENTFLAG_UNK4 seted by client if player try movement when falling and unset in this case the MOVEMENTFLAG_FALLING flag.
if ((!GetPlayer()->CanFly() && GetPlayer()->m_anti_BeginFallZ == INVALID_HEIGHT) &&
(movementInfo.GetMovementFlags() & (MOVEFLAG_FALLING | MOVEFLAG_FALLINGFAR)) != 0)
{
GetPlayer()->m_anti_BeginFallZ=(float)(movementInfo.GetPos()->z);
}
if (GetPlayer()->m_anti_NextLenCheck <= CurTime)
{
// Check every 500ms is a lot more advisable then 1000ms, because normal movment packet arrives every 500ms
uint32 OldNextLenCheck=GetPlayer()->m_anti_NextLenCheck;
float delta_xyt=GetPlayer()->m_anti_MovedLen/(float)(getMSTimeDiff(OldNextLenCheck-500,CurTime));
GetPlayer()->m_anti_NextLenCheck = CurTime+500;
GetPlayer()->m_anti_MovedLen = 0.0f;
static const float MaxDeltaXYT = sWorld.GetMvAnticheatMaxXYT();
if (delta_xyt > MaxDeltaXYT && delta<=100.0f && GetPlayer()->GetZoneId() != 2257)
{
if (sWorld.GetMvAnticheatSpeedCheck())
Anti__CheatOccurred(CurTime,"Speed hack",delta_xyt,LookupOpcodeName(opcode),
(float)(GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType()),
(float)(getMSTimeDiff(OldNextLenCheck-500,CurTime)));
}
}
if (delta > 100.0f && GetPlayer()->GetZoneId() != 2257)
{
if (sWorld.GetMvAnticheatTeleportCheck())
Anti__ReportCheat("Tele hack",delta,LookupOpcodeName(opcode));
}
// Check for waterwalking . Fix new way of checking for waterwalking by Darky88
if (movementInfo.HasMovementFlag(MOVEFLAG_WATERWALKING) &&
!(GetPlayer()->HasAuraType(SPELL_AURA_WATER_WALK) || GetPlayer()->HasAuraType(SPELL_AURA_GHOST)))
{
if (sWorld.GetMvAnticheatWaterCheck())
Anti__CheatOccurred(CurTime,"Water walking",0.0f,NULL,0.0f,(uint32)(movementInfo.GetMovementFlags()));
}
// Check for walking upwards a mountain while not beeing able to do that, New check by Darky88
if ((delta_z < -2.3f) && (tg_z > 2.37f))
{
if (sWorld.GetMvAnticheatMountainCheck())
Anti__CheatOccurred(CurTime,"Mountain hack",tg_z,NULL,delta,delta_z);
}
static const float DIFF_OVERGROUND = 10.0f;
float Anti__GroundZ = GetPlayer()->GetMap()->GetHeight(GetPlayer()->GetPositionX(),GetPlayer()->GetPositionY(),MAX_HEIGHT);
float Anti__FloorZ = GetPlayer()->GetMap()->GetHeight(GetPlayer()->GetPositionX(),GetPlayer()->GetPositionY(),GetPlayer()->GetPositionZ());
float Anti__MapZ = ((Anti__FloorZ <= (INVALID_HEIGHT+5.0f)) ? Anti__GroundZ : Anti__FloorZ) + DIFF_OVERGROUND;
if (!GetPlayer()->CanFly() &&
!GetPlayer()->GetBaseMap()->IsUnderWater(movementInfo.GetPos()->x, movementInfo.GetPos()->y, movementInfo.GetPos()->z-7.0f) &&
Anti__MapZ < GetPlayer()->GetPositionZ() && Anti__MapZ > (INVALID_HEIGHT+DIFF_OVERGROUND + 5.0f))
{
static const float DIFF_AIRJUMP=25.0f; // 25 is realy high, but to many false positives...
// Air-Jump-Detection definitively needs a better way to be detected...
if ((movementInfo.GetMovementFlags() & (MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING | MOVEFLAG_ROOT)) != 0) // Fly Hack
{
// Fix Aura 55164
if (!GetPlayer()->HasAura(55164) || !GetPlayer()->HasAuraType(SPELL_AURA_FEATHER_FALL))
if (sWorld.GetMvAnticheatFlyCheck())
Anti__CheatOccurred(CurTime,"Fly hack",
((uint8)(GetPlayer()->HasAuraType(SPELL_AURA_FLY))) +
((uint8)(GetPlayer()->HasAuraType(SPELL_AURA_MOD_FLIGHT_SPEED_MOUNTED))*2),
NULL,GetPlayer()->GetPositionZ()-Anti__MapZ);
}
// Need a better way to do that - currently a lot of fake alarms
else if ((Anti__MapZ+DIFF_AIRJUMP < GetPlayer()->GetPositionZ() &&
(movementInfo.GetMovementFlags() & (MOVEFLAG_FALLINGFAR | MOVEFLAG_PENDINGSTOP))==0) ||
(Anti__MapZ < GetPlayer()->GetPositionZ() && opcode==MSG_MOVE_JUMP) &&
!GetPlayer()->HasAuraType(SPELL_AURA_FEATHER_FALL))
{
if (sWorld.GetMvAnticheatJumpCheck())
Anti__CheatOccurred(CurTime,"Possible Air Jump Hack",0.0f,LookupOpcodeName(opcode),0.0f,movementInfo.GetMovementFlags());
}
}
/*if (Anti__FloorZ < -199900.0f && Anti__GroundZ >= -199900.0f &&
GetPlayer()->GetPositionZ()+5.0f < Anti__GroundZ)
{
Anti__CheatOccurred(CurTime,"Teleport2Plane hack",
GetPlayer()->GetPositionZ(),NULL,Anti__GroundZ);
}*/
//Teleport To Plane checks
if (movementInfo.GetPos()->z < 0.0001f && movementInfo.GetPos()->z > -0.0001f && (!movementInfo.HasMovementFlag(MovementFlags(MOVEFLAG_SWIMMING | MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING))))
{
if (sWorld.GetMvAnticheatTeleport2PlaneCheck())
{
// Prevent using TeleportToPlan.
Map *map = GetPlayer()->GetMap();
if (map)
{
float plane_z = map->GetHeight(movementInfo.GetPos()->x, movementInfo.GetPos()->y, MAX_HEIGHT) - movementInfo.GetPos()->z;
plane_z = (plane_z < -500.0f) ? 0 : plane_z; //check holes in heigth map
if (plane_z > 0.1f || plane_z < -0.1f)
{
if (sWorld.GetMvAnticheatTeleport2PlaneCheck())
Anti__CheatOccurred(CurTime,"Teleport2Plane hack",GetPlayer()->GetPositionZ(),NULL,plane_z);
}
}
}
}
}
// <<---- anti-cheat features
/* process position-change */
movementInfo.UpdateTime(getMSTime());
WorldPacket data(opcode, recv_data.size());
data.appendPackGUID(mover->GetGUID()); // write guid
movementInfo.Write(data); // write data
mover->SendMessageToSetExcept(&data, _player);
mover->m_movementInfo = movementInfo;
mover->SetPosition(movementInfo.GetPos()->x, movementInfo.GetPos()->y, movementInfo.GetPos()->z, movementInfo.GetPos()->o);
if (plMover) // nothing is charmed, or player charmed
{
plMover->UpdateFallInformationIfNeed(movementInfo, opcode);
// after move info set
if ((opcode == MSG_MOVE_SET_WALK_MODE || opcode == MSG_MOVE_SET_RUN_MODE))
plMover->UpdateWalkMode(plMover, false);
if (plMover->isMovingOrTurning())
plMover->RemoveSpellsCausingAura(SPELL_AURA_FEIGN_DEATH);
if (movementInfo.GetPos()->z < -500.0f)
{
if (plMover->InBattleGround()
&& plMover->GetBattleGround()
&& plMover->GetBattleGround()->HandlePlayerUnderMap(_player))
{
// do nothing, the handle already did if returned true
}
else
{
// NOTE: this is actually called many times while falling
// even after the player has been teleported away
// TODO: discard movement packets after the player is rooted
if (plMover->isAlive())
{
plMover->EnvironmentalDamage(DAMAGE_FALL_TO_VOID, plMover->GetMaxHealth());
// pl can be alive if GM/etc
if (!plMover->isAlive())
{
// change the death state to CORPSE to prevent the death timer from
// starting in the next player update
plMover->KillPlayer();
plMover->BuildPlayerRepop();
}
}
// cancel the death timer here if started
plMover->RepopAtGraveyard();
}
}
}
}
bool AntiCheat::CheckNeeded(AntiCheatCheck checktype)
{
if (!sWorld.getConfig(CONFIG_BOOL_ANTICHEAT_ENABLE)
|| !GetPlayer()->IsInWorld()
|| GetPlayer()->IsBeingTeleported()
|| GetPlayer()->GetPlayerbotAI()
|| GetPlayer()->GetSession()->GetSecurity() > int32(sWorld.getConfig(CONFIG_UINT32_ANTICHEAT_GMLEVEL)))
return false;
if (GetMover()->HasAuraType(SPELL_AURA_MOD_CONFUSE))
return false;
AntiCheatCheck checkMainType = (checktype >= 100) ? AntiCheatCheck(checktype / 100) : checktype;
switch( checkMainType)
{
case CHECK_NULL:
return false;
break;
case CHECK_MOVEMENT:
if ( GetPlayer()->GetTransport()
|| GetPlayer()->HasMovementFlag(MOVEFLAG_ONTRANSPORT)
|| GetMover()->GetMotionMaster()->GetCurrentMovementGeneratorType() == FLIGHT_MOTION_TYPE
|| GetPlayer()->IsTaxiFlying())
return false;
break;
case CHECK_SPELL:
break;
case CHECK_QUEST:
return false;
break;
case CHECK_TRANSPORT:
if (!isActiveMover())
return false;
break;
case CHECK_DAMAGE:
case CHECK_ITEM:
case CHECK_WARDEN:
break;
default:
return false;
}
if (checktype < 100 )
return true;
switch( checktype)
{
case CHECK_MOVEMENT_SPEED:
if (GetMover()->HasAura(56266))
return false;
break;
case CHECK_MOVEMENT_FLY:
case CHECK_MOVEMENT_ZAXIS:
if (isCanFly() || !GetMover())
return false;
break;
case CHECK_MOVEMENT_WATERWALKING:
if (!m_currentmovementInfo->HasMovementFlag(MOVEFLAG_WATERWALKING))
return false;
break;
case CHECK_MOVEMENT_TP2PLANE:
if (GetMover()->GetTransport())
return false;
if (m_currentmovementInfo->HasMovementFlag(MovementFlags(MOVEFLAG_SWIMMING | MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING)))
return false;
if (GetMover()->HasAura(60068) && GetMover()->GetTerrain()->IsUnderWater(m_currentmovementInfo->GetPos()->x, m_currentmovementInfo->GetPos()->y, m_currentmovementInfo->GetPos()->z-5.0f))
return false;
break;
case CHECK_MOVEMENT_AIRJUMP:
if (isCanFly() ||
!isActiveMover() ||
GetMover()->HasAuraType(SPELL_AURA_FEATHER_FALL) ||
GetMover()->GetTerrain()->IsUnderWater(m_currentmovementInfo->GetPos()->x, m_currentmovementInfo->GetPos()->y, m_currentmovementInfo->GetPos()->z-5.0f))
return false;
break;
case CHECK_MOVEMENT_TELEPORT:
if (!isActiveMover() || GetPlayer()->IsBeingTeleported())
return false;
break;
case CHECK_MOVEMENT_FALL:
if (isCanFly() || !isActiveMover())
return false;
break;
case CHECK_MOVEMENT_MOUNTAIN:
if (isCanFly() || !isActiveMover())
return false;
break;
default:
break;
}
return true;
}
void WorldSession::HandleMovementOpcodes( WorldPacket & recv_data )
{
uint32 opcode = recv_data.GetOpcode();
sLog.outDebug("WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);
Unit *mover = _player->m_mover;
Player *plMover = mover->GetTypeId()==TYPEID_PLAYER ? (Player*)mover : NULL;
// ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
if(plMover && plMover->IsBeingTeleported()){
// movement anticheat
plMover->m_anti_JustTeleported = 1;
// end movement anticheat
return;
}
/* extract packet */
MovementInfo movementInfo;
ReadMovementInfo(recv_data, &movementInfo);
/*----------------*/
if(recv_data.size() != recv_data.rpos())
{
sLog.outError("MovementHandler: player %s (guid %d, account %u) sent a packet (opcode %u) that is " SIZEFMTD " bytes larger than it should be. Kicked as cheater.", _player->GetName(), _player->GetGUIDLow(), _player->GetSession()->GetAccountId(), recv_data.GetOpcode(), recv_data.size() - recv_data.rpos());
KickPlayer();
return;
}
if (!MaNGOS::IsValidMapCoord(movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o))
return;
/* handle special cases */
if (movementInfo.HasMovementFlag(MOVEMENTFLAG_ONTRANSPORT))
{
// transports size limited
// (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
if( movementInfo.t_x > 60 || movementInfo.t_y > 60 || movementInfo.t_x < -60 || movementInfo.t_y < -60 )
return;
if( !MaNGOS::IsValidMapCoord(movementInfo.x+movementInfo.t_x, movementInfo.y + movementInfo.t_y,
movementInfo.z + movementInfo.t_z, movementInfo.o + movementInfo.t_o) )
return;
if (plMover && plMover->m_anti_TransportGUID == 0 && (movementInfo.t_guid !=0))
{
// if we boarded a transport, add us to it
if (plMover && !plMover->m_transport)
{
// elevators also cause the client to send MOVEMENTFLAG_ONTRANSPORT - just unmount if the guid can be found in the transport list
for (MapManager::TransportSet::const_iterator iter = MapManager::Instance().m_Transports.begin(); iter != MapManager::Instance().m_Transports.end(); ++iter)
{
if ((*iter)->GetGUID() == movementInfo.t_guid)
{
plMover->m_transport = (*iter);
(*iter)->AddPassenger(plMover);
break;
}
}
}
//movement anticheat;
//Correct finding GO guid in DB (thanks to GriffonHeart)
GameObject *obj = HashMapHolder<GameObject>::Find(movementInfo.t_guid);
if(obj)
plMover->m_anti_TransportGUID = obj->GetDBTableGUIDLow();
else
plMover->m_anti_TransportGUID = GUID_LOPART(movementInfo.t_guid);
// end movement anticheat
}
} else if (plMover && plMover->m_anti_TransportGUID != 0){
if (plMover && plMover->m_transport) // if we were on a transport, leave
{
plMover->m_transport->RemovePassenger(plMover);
plMover->m_transport = NULL;
}
movementInfo.t_x = 0.0f;
movementInfo.t_y = 0.0f;
movementInfo.t_z = 0.0f;
movementInfo.t_o = 0.0f;
movementInfo.t_time = 0;
movementInfo.t_seat = -1;
plMover->m_anti_TransportGUID = 0;
}
// fall damage generation (ignore in flight case that can be triggered also at lags in moment teleportation to another map).
if (opcode == MSG_MOVE_FALL_LAND && plMover && !plMover->isInFlight())
{
//movement anticheat
plMover->m_anti_JustJumped = 0;
plMover->m_anti_JumpBaseZ = 0;
//end movement anticheat
plMover->HandleFall(movementInfo);
}
if (plMover && (movementInfo.HasMovementFlag(MOVEMENTFLAG_SWIMMING) != plMover->IsInWater()))
{
// now client not include swimming flag in case jumping under water
plMover->SetInWater( !plMover->IsInWater() || plMover->GetBaseMap()->IsUnderWater(movementInfo.x, movementInfo.y, movementInfo.z) );
}
/*----------------------*/
//---- anti-cheat features -->>>
bool check_passed = true;
#ifdef MOVEMENT_ANTICHEAT_DEBUG
if (plMover){
sLog.outBasic("MA-%s > client-time:%d fall-time:%d | xyzo: %f,%f,%fo(%f) flags[%X] opcode[%s]| transport (xyzo): %f,%f,%fo(%f)",
plMover->GetName(),movementInfo.time,movementInfo.fallTime,movementInfo.x,movementInfo.y,movementInfo.z,movementInfo.o,
movementInfo.flags, LookupOpcodeName(opcode),movementInfo.t_x,movementInfo.t_y,movementInfo.t_z,movementInfo.t_o);
sLog.outBasic("MA-%s Transport > server GUID: %d | client GUID: (lo)%d - (hi)%d",
plMover->GetName(),plMover->m_anti_TransportGUID, GUID_LOPART(movementInfo.t_guid), GUID_HIPART(movementInfo.t_guid));
} else {
sLog.outBasic("MA > client-time:%d fall-time:%d | xyzo: %f,%f,%fo(%f) flags[%X] opcode[%s]| transport (xyzo): %f,%f,%fo(%f)",
movementInfo.time,movementInfo.fallTime,movementInfo.x,movementInfo.y,movementInfo.z,movementInfo.o,
movementInfo.flags, LookupOpcodeName(opcode),movementInfo.t_x,movementInfo.t_y,movementInfo.t_z,movementInfo.t_o);
sLog.outBasic("MA Transport > server GUID: | client GUID: (lo)%d - (hi)%d",
GUID_LOPART(movementInfo.t_guid), GUID_HIPART(movementInfo.t_guid));
}
#endif
if (plMover && World::GetEnableMvAnticheat())
{
//calc time deltas
int32 cClientTimeDelta = 1500;
if (plMover->m_anti_LastClientTime !=0){
cClientTimeDelta = movementInfo.time - plMover->m_anti_LastClientTime;
plMover->m_anti_DeltaClientTime += cClientTimeDelta;
plMover->m_anti_LastClientTime = movementInfo.time;
} else {
plMover->m_anti_LastClientTime = movementInfo.time;
}
uint32 cServerTime=getMSTime();
uint32 cServerTimeDelta = 1500;
if (plMover->m_anti_LastServerTime != 0){
cServerTimeDelta = cServerTime - plMover->m_anti_LastServerTime;
plMover->m_anti_DeltaServerTime += cServerTimeDelta;
plMover->m_anti_LastServerTime = cServerTime;
} else {
plMover->m_anti_LastServerTime = cServerTime;
}
//resync times on client login (first 15 sec for heavy areas)
if (plMover->m_anti_DeltaServerTime < 15000 && plMover->m_anti_DeltaClientTime < 15000)
plMover->m_anti_DeltaClientTime = plMover->m_anti_DeltaServerTime;
int32 sync_time = plMover->m_anti_DeltaClientTime - plMover->m_anti_DeltaServerTime;
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outBasic("MA-%s Time > cClientTimeDelta: %d, cServerTime: %d || deltaC: %d - deltaS: %d || SyncTime: %d",
plMover->GetName(),cClientTimeDelta, cServerTime,
plMover->m_anti_DeltaClientTime, plMover->m_anti_DeltaServerTime, sync_time);
#endif
//mistiming checks
int32 gmd = World::GetMistimingDelta();
if (sync_time > gmd || sync_time < -gmd){
cClientTimeDelta = cServerTimeDelta;
plMover->m_anti_MistimingCount++;
sLog.outError("MA-%s, mistiming exception. #:%d, mistiming: %dms ",
plMover->GetName(), plMover->m_anti_MistimingCount, sync_time);
if (plMover->m_anti_MistimingCount > World::GetMistimingAlarms())
{
plMover->GetSession()->KickPlayer();
return;
}
check_passed = false;
}
// end mistiming checks
uint32 curDest = plMover->m_taxi.GetTaxiDestination(); //check taxi flight
if ((plMover->m_anti_TransportGUID == 0) && !curDest)
{
UnitMoveType move_type;
// calculating section ---------------------
//current speed
if (movementInfo.flags & MOVEMENTFLAG_FLYING) move_type = movementInfo.flags & MOVEMENTFLAG_BACKWARD ? MOVE_FLIGHT_BACK : MOVE_FLIGHT;
else if (movementInfo.flags & MOVEMENTFLAG_SWIMMING) move_type = movementInfo.flags & MOVEMENTFLAG_BACKWARD ? MOVE_SWIM_BACK : MOVE_SWIM;
else if (movementInfo.flags & MOVEMENTFLAG_WALK_MODE) move_type = MOVE_WALK;
//hmm... in first time after login player has MOVE_SWIMBACK instead MOVE_WALKBACK
else move_type = movementInfo.flags & MOVEMENTFLAG_BACKWARD ? MOVE_SWIM_BACK : MOVE_RUN;
float current_speed = plMover->GetSpeed(move_type);
// end current speed
// movement distance
float allowed_delta= 0;
float delta_x = plMover->GetPositionX() - movementInfo.x;
float delta_y = plMover->GetPositionY() - movementInfo.y;
float delta_z = plMover->GetPositionZ() - movementInfo.z;
float real_delta = delta_x * delta_x + delta_y * delta_y;
float tg_z = -99999; //tangens
// end movement distance
if (cClientTimeDelta < 0) {cClientTimeDelta = 0;}
float time_delta = (cClientTimeDelta < 1500) ? (float)cClientTimeDelta/1000 : 1.5f; //normalize time - 1.5 second allowed for heavy loaded server
if (!(movementInfo.flags & (MOVEMENTFLAG_FLYING | MOVEMENTFLAG_SWIMMING)))
tg_z = (real_delta !=0) ? (delta_z*delta_z / real_delta) : -99999;
if (current_speed < plMover->m_anti_Last_HSpeed)
{
allowed_delta = plMover->m_anti_Last_HSpeed;
if (plMover->m_anti_LastSpeedChangeTime == 0 )
plMover->m_anti_LastSpeedChangeTime = movementInfo.time + (uint32)floor(((plMover->m_anti_Last_HSpeed / current_speed) * 1500)) + 100; //100ms above for random fluctuating =)))
} else {
allowed_delta = current_speed;
}
allowed_delta = allowed_delta * time_delta;
allowed_delta = allowed_delta * allowed_delta + 2;
if (tg_z > 2.2)
allowed_delta = allowed_delta + (delta_z*delta_z)/2.37; // mountain fall allowed speed
if (movementInfo.time>plMover->m_anti_LastSpeedChangeTime)
{
plMover->m_anti_Last_HSpeed = current_speed; // store current speed
plMover->m_anti_Last_VSpeed = -2.3f;
if (plMover->m_anti_LastSpeedChangeTime != 0) plMover->m_anti_LastSpeedChangeTime = 0;
}
// end calculating section ---------------------
//AntiGravitation (thanks to Meekro)
float JumpHeight = plMover->m_anti_JumpBaseZ - movementInfo.z;
if ((plMover->m_anti_JumpBaseZ != 0)
&& !(movementInfo.flags & (MOVEMENTFLAG_SWIMMING | MOVEMENTFLAG_FLYING | MOVEMENTFLAG_FLYING2))
&& (JumpHeight < plMover->m_anti_Last_VSpeed))
{
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outError("MA-%s, GraviJump exception. JumpHeight = %f, Allowed Veritcal Speed = %f",
plMover->GetName(), JumpHeight, plMover->m_anti_Last_VSpeed);
#endif
check_passed = false;
}
//multi jump checks
if (opcode == MSG_MOVE_JUMP && !plMover->IsInWater())
{
if (plMover->m_anti_JustJumped >= 1){
check_passed = false; //don't process new jump packet
} else {
plMover->m_anti_JustJumped += 1;
plMover->m_anti_JumpBaseZ = movementInfo.z;
}
} else if (plMover->IsInWater()) {
plMover->m_anti_JustJumped = 0;
}
//speed hack checks
if ((real_delta > allowed_delta)) // && (delta_z < 0))
{
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outError("MA-%s, speed exception | cDelta=%f aDelta=%f | cSpeed=%f lSpeed=%f deltaTime=%f",
plMover->GetName(), real_delta, allowed_delta, current_speed, plMover->m_anti_Last_HSpeed,time_delta);
#endif
check_passed = false;
}
//teleport hack checks
if ((real_delta>4900.0f) && !(real_delta < allowed_delta))
{
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outError("MA-%s, is teleport exception | cDelta=%f aDelta=%f | cSpeed=%f lSpeed=%f deltaToime=%f",
plMover->GetName(),real_delta, allowed_delta, current_speed, plMover->m_anti_Last_HSpeed,time_delta);
#endif
check_passed = false;
}
//mountian hack checks // 1.56f (delta_z < GetPlayer()->m_anti_Last_VSpeed))
if ((delta_z < plMover->m_anti_Last_VSpeed) && (plMover->m_anti_JustJumped == 0) && (tg_z > 2.37f))
{
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outError("MA-%s, mountain exception | tg_z=%f", plMover->GetName(),tg_z);
#endif
check_passed = false;
}
//Fly hack checks
if (((movementInfo.flags & (MOVEMENTFLAG_CAN_FLY | MOVEMENTFLAG_FLYING | MOVEMENTFLAG_FLYING2)) != 0)
&& !plMover->isGameMaster()
&& !(plMover->HasAuraType(SPELL_AURA_FLY) || plMover->HasAuraType(SPELL_AURA_MOD_INCREASE_FLIGHT_SPEED)))
{
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outError("MA-%s, flight exception. {SPELL_AURA_FLY=[%X]} {SPELL_AURA_MOD_INCREASE_FLIGHT_SPEED=[%X]} {SPELL_AURA_MOD_SPEED_FLIGHT=[%X]} {SPELL_AURA_MOD_FLIGHT_SPEED_ALWAYS=[%X]} {SPELL_AURA_MOD_FLIGHT_SPEED_NOT_STACK=[%X]}",
plMover->GetName(),
plMover->HasAuraType(SPELL_AURA_FLY), plMover->HasAuraType(SPELL_AURA_MOD_INCREASE_FLIGHT_SPEED),
plMover->HasAuraType(SPELL_AURA_MOD_SPEED_FLIGHT), plMover->HasAuraType(SPELL_AURA_MOD_FLIGHT_SPEED_ALWAYS),
plMover->HasAuraType(SPELL_AURA_MOD_FLIGHT_SPEED_NOT_STACK));
#endif
check_passed = false;
}
//Water-Walk checks
if (((movementInfo.flags & MOVEMENTFLAG_WATERWALKING) != 0)
&& !plMover->isGameMaster()
&& !(plMover->HasAuraType(SPELL_AURA_WATER_WALK) | plMover->HasAuraType(SPELL_AURA_GHOST)))
{
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outError("MA-%s, water-walk exception. [%X]{SPELL_AURA_WATER_WALK=[%X]}",
plMover->GetName(), movementInfo.flags, plMover->HasAuraType(SPELL_AURA_WATER_WALK));
#endif
check_passed = false;
}
//Teleport To Plane checks
if (movementInfo.z < 0.0001f && movementInfo.z > -0.0001f
&& ((movementInfo.flags & (MOVEMENTFLAG_SWIMMING | MOVEMENTFLAG_CAN_FLY | MOVEMENTFLAG_FLYING | MOVEMENTFLAG_FLYING2)) == 0)
&& !plMover->isGameMaster())
{
// Prevent using TeleportToPlan.
Map *map = plMover->GetMap();
if (map){
float plane_z = map->GetHeight(movementInfo.x, movementInfo.y, MAX_HEIGHT) - movementInfo.z;
plane_z = (plane_z < -500.0f) ? 0 : plane_z; //check holes in heigth map
if(plane_z > 0.1f || plane_z < -0.1f)
{
plMover->m_anti_TeleToPlane_Count++;
check_passed = false;
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outDebug("MA-%s, teleport to plan exception. plane_z: %f ",
plMover->GetName(), plane_z);
#endif
if (plMover->m_anti_TeleToPlane_Count > World::GetTeleportToPlaneAlarms())
{
sLog.outError("MA-%s, teleport to plan exception. Exception count: %d ",
plMover->GetName(), plMover->m_anti_TeleToPlane_Count);
plMover->GetSession()->KickPlayer();
return;
}
}
}
} else {
if (plMover->m_anti_TeleToPlane_Count != 0)
plMover->m_anti_TeleToPlane_Count = 0;
}
} else if (movementInfo.flags & MOVEMENTFLAG_ONTRANSPORT) {
//antiwrap checks
if (plMover->m_transport)
{
float trans_rad = movementInfo.t_x*movementInfo.t_x + movementInfo.t_y*movementInfo.t_y + movementInfo.t_z*movementInfo.t_z;
if (trans_rad > 3600.0f){
check_passed = false;
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outError("MA-%s, leave transport.", plMover->GetName());
#endif
}
} else {
if (GameObjectData const* go_data = objmgr.GetGOData(plMover->m_anti_TransportGUID))
{
float delta_gox = go_data->posX - movementInfo.x;
float delta_goy = go_data->posY - movementInfo.y;
float delta_goz = go_data->posZ - movementInfo.z;
int mapid = go_data->mapid;
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outDebug("MA-%s, transport movement. GO xyzo: %f,%f,%f",
plMover->GetName(), go_data->posX,go_data->posY,go_data->posZ);
#endif
if (plMover->GetMapId() != mapid){
check_passed = false;
} else if (mapid !=369) {
float delta_go = delta_gox*delta_gox + delta_goy*delta_goy;
if (delta_go > 3600.0f) {
check_passed = false;
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outError("MA-%s, leave transport. GO xyzo: %f,%f,%f",
plMover->GetName(), go_data->posX,go_data->posY,go_data->posZ);
#endif
}
}
} else {
#ifdef MOVEMENT_ANTICHEAT_DEBUG
sLog.outDebug("MA-%s, undefined transport.", plMover->GetName());
#endif
check_passed = false;
}
}
if (!check_passed){
if (plMover->m_transport)
{
plMover->m_transport->RemovePassenger(plMover);
plMover->m_transport = NULL;
}
movementInfo.t_x = 0.0f;
movementInfo.t_y = 0.0f;
movementInfo.t_z = 0.0f;
movementInfo.t_o = 0.0f;
movementInfo.t_time = 0;
plMover->m_anti_TransportGUID = 0;
}
}
}
/* process position-change */
if (check_passed)
{
recv_data.put<uint32>(6, getMSTime()); // fix time, offset flags(4) + unk(2)
WorldPacket data(recv_data.GetOpcode(), (mover->GetPackGUID().size()+recv_data.size()));
data.append(mover->GetPackGUID()); // use mover guid
data.append(recv_data.contents(), recv_data.size());
GetPlayer()->SendMessageToSet(&data, false);
if(plMover) // nothing is charmed, or player charmed
{
plMover->SetPosition(movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o);
plMover->m_movementInfo = movementInfo;
plMover->UpdateFallInformationIfNeed(movementInfo, recv_data.GetOpcode());
if(plMover->isMovingOrTurning())
plMover->RemoveSpellsCausingAura(SPELL_AURA_FEIGN_DEATH);
if(movementInfo.z < -500.0f)
{
if(plMover->InBattleGround()
&& plMover->GetBattleGround()
&& plMover->GetBattleGround()->HandlePlayerUnderMap(_player))
{
// do nothing, the handle already did if returned true
}
else
{
// NOTE: this is actually called many times while falling
// even after the player has been teleported away
// TODO: discard movement packets after the player is rooted
if(plMover->isAlive())
{
plMover->EnvironmentalDamage(DAMAGE_FALL_TO_VOID, GetPlayer()->GetMaxHealth());
// pl can be alive if GM/etc
if(!plMover->isAlive())
{
// change the death state to CORPSE to prevent the death timer from
// starting in the next player update
plMover->KillPlayer();
plMover->BuildPlayerRepop();
}
}
// cancel the death timer here if started
plMover->RepopAtGraveyard();
}
}
//movement anticheat >>>
if (plMover->m_anti_AlarmCount > 0){
sLog.outError("MA-%s produce %d anticheat alarms",plMover->GetName(),plMover->m_anti_AlarmCount);
plMover->m_anti_AlarmCount = 0;
}
// end movement anticheat
}
else // creature charmed
{
if(mover->IsInWorld())
mover->GetMap()->CreatureRelocation((Creature*)mover, movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o);
}
} else if (plMover) {
plMover->m_anti_AlarmCount++;
WorldPacket data;
plMover->m_movementInfo.SetMovementFlags(MovementFlags(MOVEMENTFLAG_NONE));
plMover->BuildTeleportAckMsg(&data, plMover->GetPositionX(), plMover->GetPositionY(), plMover->GetPositionZ(), plMover->GetOrientation());
plMover->GetSession()->SendPacket(&data);
plMover->BuildHeartBeatMsg(&data);
plMover->SendMessageToSet(&data, true);
}
}
bool AntiCheat::CheckNeeded(AntiCheatCheck checktype)
{
if (!sWorld.getConfig(CONFIG_BOOL_ANTICHEAT_ENABLE)
|| !GetPlayer()->IsInWorld()
|| !GetPlayer()->GetMap()
|| GetPlayer()->IsBeingTeleported()
|| GetPlayer()->GetPlayerbotAI()
|| GetPlayer()->GetSession()->GetSecurity() > int32(sWorld.getConfig(CONFIG_UINT32_ANTICHEAT_GMLEVEL)))
return false;
if (!m_currentConfig->disabledZones.empty())
{
uint32 zone, area;
GetPlayer()->GetZoneAndAreaId(zone,area);
if (m_currentConfig->disabledZones.find(zone) != m_currentConfig->disabledZones.end())
return false;
}
AntiCheatCheck checkMainType = (checktype >= 100) ? AntiCheatCheck(checktype / 100) : checktype;
switch( checkMainType)
{
case CHECK_NULL:
return false;
break;
case CHECK_MOVEMENT:
if ( GetPlayer()->IsOnTransport()
// || GetPlayer()->HasMovementFlag(MOVEFLAG_ONTRANSPORT)
|| GetPlayer()->IsInUnitState(UNIT_ACTION_CONFUSED)
|| GetPlayer()->IsTaxiFlying())
return false;
break;
case CHECK_SPELL:
break;
case CHECK_QUEST:
return false;
break;
case CHECK_TRANSPORT:
if (!isActiveMover())
return false;
break;
case CHECK_WARDEN:
if (!sWorld.getConfig(CONFIG_BOOL_ANTICHEAT_WARDEN))
return false;
break;
case CHECK_DAMAGE:
case CHECK_ITEM:
break;
default:
return false;
}
if (checktype < 100 )
return true;
switch( checktype)
{
case CHECK_MOVEMENT_SPEED:
if (GetMover()->HasAura(56266))
return false;
break;
case CHECK_MOVEMENT_FLY:
case CHECK_MOVEMENT_ZAXIS:
if (isCanFly() || !GetMover())
return false;
break;
case CHECK_MOVEMENT_WATERWALKING:
if (!m_currentmovementInfo->HasMovementFlag(MOVEFLAG_WATERWALKING))
return false;
break;
case CHECK_MOVEMENT_TP2PLANE:
if (GetMover()->IsOnTransport())
return false;
if (m_currentmovementInfo->HasMovementFlag(MovementFlags(MOVEFLAG_SWIMMING | MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING)))
return false;
if (GetMover()->HasAura(60068) && GetMover()->GetTerrain()->IsUnderWater(m_currentmovementInfo->GetPos()->x, m_currentmovementInfo->GetPos()->y, m_currentmovementInfo->GetPos()->z-5.0f))
return false;
break;
case CHECK_MOVEMENT_AIRJUMP:
if (isCanFly() ||
!isActiveMover() ||
GetMover()->GetTerrain()->IsUnderWater(m_currentmovementInfo->GetPos()->x, m_currentmovementInfo->GetPos()->y, m_currentmovementInfo->GetPos()->z-5.0f))
return false;
break;
case CHECK_MOVEMENT_TELEPORT:
if (!isActiveMover() || GetPlayer()->IsBeingTeleported())
return false;
break;
case CHECK_MOVEMENT_FALL:
if (isCanFly() || !isActiveMover())
return false;
break;
case CHECK_MOVEMENT_MOUNTAIN:
if (isCanFly() || !isActiveMover())
return false;
break;
default:
break;
}
return true;
}
void WorldSession::HandleLogoutRequestOpcode( WorldPacket & /*recv_data*/ )
{
DEBUG_LOG( "WORLD: Recvd CMSG_LOGOUT_REQUEST Message, security - %u", GetSecurity() );
if (ObjectGuid lootGuid = GetPlayer()->GetLootGuid())
DoLootRelease(lootGuid);
uint8 reason = 0;
Player* plr = GetPlayer();
if (!plr)
{
LogoutPlayer(false);
return;
}
if (plr->isInCombat())
reason = 1;
else if (plr->m_movementInfo.HasMovementFlag(MovementFlags(MOVEFLAG_FALLING | MOVEFLAG_FALLINGFAR))) // is jumping or falling
reason = 3;
else if (plr->duel || plr->HasAura(9454)) // is dueling or frozen by GM via freeze command
reason = 2;
if (reason)
{
WorldPacket data( SMSG_LOGOUT_RESPONSE, 1+4 ) ;
data << reason;
data << uint32(0);
SendPacket( &data );
LogoutRequest(0);
return;
}
//instant logout in taverns/cities or on taxi or for admins, gm's, mod's if its enabled in mangosd.conf
if (GetPlayer()->HasFlag(PLAYER_FLAGS, PLAYER_FLAGS_RESTING) || GetPlayer()->IsTaxiFlying() ||
GetSecurity() >= (AccountTypes)sWorld.getConfig(CONFIG_UINT32_INSTANT_LOGOUT))
{
WorldPacket data(SMSG_LOGOUT_RESPONSE, 1 + 4);
data << reason;
data << uint32(16777216);
SendPacket(&data);
LogoutPlayer(true);
return;
}
// not set flags if player can't free move to prevent lost state at logout cancel
if (GetPlayer()->CanFreeMove())
{
float height = GetPlayer()->GetMap()->GetHeight(GetPlayer()->GetPositionX(), GetPlayer()->GetPositionY(), GetPlayer()->GetPositionZ());
if ((GetPlayer()->GetPositionZ() < height + 0.1f) && !(GetPlayer()->IsInWater()))
GetPlayer()->SetStandState(UNIT_STAND_STATE_SIT);
GetPlayer()->SetRoot(true);
GetPlayer()->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_STUNNED);
}
WorldPacket data(SMSG_LOGOUT_RESPONSE, 1 + 4);
data << uint8(0);
data << uint32(0);
SendPacket( &data );
LogoutRequest(time(NULL));
}
