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)); }