Files
mod-anticheat/src/AnticheatMgr.cpp
2020-11-14 19:56:35 -08:00

493 lines
18 KiB
C++

/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "AnticheatMgr.h"
#include "MapManager.h"
#include "Player.h"
#include "Configuration/Config.h"
#define CLIMB_ANGLE 1.9f
AnticheatMgr::AnticheatMgr()
{
}
AnticheatMgr::~AnticheatMgr()
{
m_Players.clear();
}
void AnticheatMgr::JumpHackDetection(Player* player, MovementInfo /* movementInfo */, uint32 opcode)
{
if (!sConfigMgr->GetBoolDefault("Anticheat.DetectJumpHack", true))
return;
uint32 key = player->GetGUIDLow();
if (m_Players[key].GetLastOpcode() == MSG_MOVE_JUMP && opcode == MSG_MOVE_JUMP)
{
BuildReport(player, JUMP_HACK_REPORT);
sLog->outString("AnticheatMgr:: Jump-Hack detected player %s (%u)", player->GetName().c_str(), player->GetGUIDLow());
}
}
void AnticheatMgr::WalkOnWaterHackDetection(Player* player, MovementInfo movementInfo)
{
if (!sConfigMgr->GetBoolDefault("Anticheat.DetectWaterWalkHack", true))
return;
uint32 key = player->GetGUIDLow();
/* Thanks to @LilleCarl */
if (!m_Players[key].GetLastMovementInfo().HasMovementFlag(MOVEMENTFLAG_WATERWALKING) && !movementInfo.HasMovementFlag(MOVEMENTFLAG_WATERWALKING))
return;
// if we are a ghost we can walk on water
if (!player->IsAlive())
return;
if (player->HasAuraType(SPELL_AURA_FEATHER_FALL) ||
player->HasAuraType(SPELL_AURA_SAFE_FALL) ||
player->HasAuraType(SPELL_AURA_WATER_WALK))
return;
if (sConfigMgr->GetBoolDefault("Anticheat.KickPlayerWaterWalkHack", false))
{
if (sConfigMgr->GetBoolDefault("Anticheat.WriteLog", false))
sLog->outString("AnticheatMgr:: Walk on Water - Hack detected and counteracted by kicking player %s (%u)", player->GetName().c_str(), player->GetGUIDLow());
player->GetSession()->KickPlayer(true);
if(sConfigMgr->GetBoolDefault("Anticheat.AnnounceKick", true))
{
std::string plr = player->GetName();
std::string tag_colour = "7bbef7";
std::string plr_colour = "ff0000";
std::ostringstream stream;
stream << "|CFF" << plr_colour << "[AntiCheat]|r|CFF" << tag_colour <<
" Player |r|cff" << plr_colour << plr << "|r|cff" << tag_colour <<
" has been kicked.|r";
sWorld->SendServerMessage(SERVER_MSG_STRING, stream.str().c_str());
}
}
else if (sConfigMgr->GetBoolDefault("Anticheat.WriteLog", false)) {
sLog->outString("AnticheatMgr:: Walk on Water - Hack detected player %s (%u)", player->GetName().c_str(), player->GetGUIDLow());
}
BuildReport(player, WALK_WATER_HACK_REPORT);
}
void AnticheatMgr::FlyHackDetection(Player* player, MovementInfo movementInfo)
{
if (!sConfigMgr->GetBoolDefault("Anticheat.DetectFlyHack", true))
{
return;
}
if (player->HasAuraType(SPELL_AURA_FLY) || player->HasAuraType(SPELL_AURA_MOD_INCREASE_MOUNTED_FLIGHT_SPEED) || player->HasAuraType(SPELL_AURA_MOD_INCREASE_FLIGHT_SPEED))//overkill but wth
{
return;
}
/*Thanks to @LilleCarl for info to check extra flag*/
bool stricterChecks = true;
if (sConfigMgr->GetBoolDefault("Anticheat.StricterFlyHackCheck", false))
{
stricterChecks = !(movementInfo.HasMovementFlag(MOVEMENTFLAG_ASCENDING) && !player->IsInWater());
}
if (!movementInfo.HasMovementFlag(MOVEMENTFLAG_CAN_FLY) && !movementInfo.HasMovementFlag(MOVEMENTFLAG_FLYING) && stricterChecks)
{
return;
}
if (sConfigMgr->GetBoolDefault("Anticheat.KickPlayerFlyHack", false))
{
if (sConfigMgr->GetBoolDefault("Anticheat.WriteLog", false))
{
sLog->outString("AnticheatMgr:: Fly-Hack detected and counteracted by kicking player %s (%u)", player->GetName().c_str(), player->GetGUIDLow());
}
player->GetSession()->KickPlayer(true);
if(sConfigMgr->GetBoolDefault("Anticheat.AnnounceKick", true))
{
std::string plr = player->GetName();
std::string tag_colour = "7bbef7";
std::string plr_colour = "ff0000";
std::ostringstream stream;
stream << "|CFF" << plr_colour << "[AntiCheat]|r|CFF" << tag_colour <<
" Player |r|cff" << plr_colour << plr << "|r|cff" << tag_colour <<
" has been kicked.|r";
sWorld->SendServerMessage(SERVER_MSG_STRING, stream.str().c_str());
}
} else if (sConfigMgr->GetBoolDefault("Anticheat.WriteLog", false))
{
sLog->outString( "AnticheatMgr:: Fly-Hack detected player %s (%u)", player->GetName().c_str(), player->GetGUIDLow());
}
BuildReport(player,FLY_HACK_REPORT);
}
void AnticheatMgr::TeleportPlaneHackDetection(Player* player, MovementInfo movementInfo)
{
if (!sConfigMgr->GetBoolDefault("Anticheat.DetectTelePlaneHack", true))
return;
uint32 key = player->GetGUIDLow();
if (m_Players[key].GetLastMovementInfo().pos.GetPositionZ() != 0 ||
movementInfo.pos.GetPositionZ() != 0)
return;
if (movementInfo.HasMovementFlag(MOVEMENTFLAG_FALLING))
return;
// DEAD_FALLING was deprecated
//if (player->getDeathState() == DEAD_FALLING)
// return;
float x, y, z;
player->GetPosition(x, y, z);
float ground_Z = player->GetMap()->GetHeight(x, y, z);
float z_diff = fabs(ground_Z - z);
// we are not really walking there
if (z_diff > 1.0f)
{
if (sConfigMgr->GetBoolDefault("Anticheat.WriteLog", false))
sLog->outString("AnticheatMgr:: Teleport To Plane - Hack detected player %s (%u)", player->GetName().c_str(), player->GetGUIDLow());
BuildReport(player, TELEPORT_PLANE_HACK_REPORT);
}
}
void AnticheatMgr::StartHackDetection(Player* player, MovementInfo movementInfo, uint32 opcode)
{
if (!sConfigMgr->GetBoolDefault("Anticheat.Enabled", 0))
return;
if (player->IsGameMaster())
return;
uint32 key = player->GetGUIDLow();
if (player->IsInFlight() || player->GetTransport() || player->GetVehicle())
{
m_Players[key].SetLastMovementInfo(movementInfo);
m_Players[key].SetLastOpcode(opcode);
return;
}
SpeedHackDetection(player, movementInfo);
FlyHackDetection(player, movementInfo);
WalkOnWaterHackDetection(player, movementInfo);
JumpHackDetection(player, movementInfo, opcode);
TeleportPlaneHackDetection(player, movementInfo);
ClimbHackDetection(player, movementInfo, opcode);
m_Players[key].SetLastMovementInfo(movementInfo);
m_Players[key].SetLastOpcode(opcode);
}
// basic detection
void AnticheatMgr::ClimbHackDetection(Player *player, MovementInfo movementInfo, uint32 opcode)
{
if (!sConfigMgr->GetBoolDefault("Anticheat.DetectClimbHack", false))
return;
uint32 key = player->GetGUIDLow();
if (opcode != MSG_MOVE_HEARTBEAT ||
m_Players[key].GetLastOpcode() != MSG_MOVE_HEARTBEAT)
return;
// in this case we don't care if they are "legal" flags, they are handled in another parts of the Anticheat Manager.
if (player->IsInWater() ||
player->IsFlying() ||
player->IsFalling())
return;
Position playerPos;
// Position pos = player->GetPosition();
float deltaZ = fabs(playerPos.GetPositionZ() - movementInfo.pos.GetPositionZ());
float deltaXY = movementInfo.pos.GetExactDist2d(&playerPos);
float angle = Position::NormalizeOrientation(tan(deltaZ / deltaXY));
if (angle > CLIMB_ANGLE)
{
if (sConfigMgr->GetBoolDefault("Anticheat.WriteLog", false))
sLog->outString("AnticheatMgr:: Climb-Hack detected player %s (%u)", player->GetName().c_str(), player->GetGUIDLow());
BuildReport(player, CLIMB_HACK_REPORT);
}
}
void AnticheatMgr::SpeedHackDetection(Player* player, MovementInfo movementInfo)
{
if (!sConfigMgr->GetBoolDefault("Anticheat.DetectSpeedHack", true))
return;
uint32 key = player->GetGUIDLow();
// We also must check the map because the movementFlag can be modified by the client.
// If we just check the flag, they could always add that flag and always skip the speed hacking detection.
// 369 == DEEPRUN TRAM
if (m_Players[key].GetLastMovementInfo().HasMovementFlag(MOVEMENTFLAG_ONTRANSPORT) && player->GetMapId() == 369)
return;
uint32 distance2D = (uint32)movementInfo.pos.GetExactDist2d(&m_Players[key].GetLastMovementInfo().pos);
uint8 moveType = 0;
// we need to know HOW is the player moving
// TO-DO: Should we check the incoming movement flags?
if (player->HasUnitMovementFlag(MOVEMENTFLAG_SWIMMING))
moveType = MOVE_SWIM;
else if (player->IsFlying())
moveType = MOVE_FLIGHT;
else if (player->HasUnitMovementFlag(MOVEMENTFLAG_WALKING))
moveType = MOVE_WALK;
else
moveType = MOVE_RUN;
// how many yards the player can do in one sec.
uint32 speedRate = (uint32)(player->GetSpeed(UnitMoveType(moveType)) + movementInfo.jump.xyspeed);
// how long the player took to move to here.
uint32 timeDiff = getMSTimeDiff(m_Players[key].GetLastMovementInfo().time, movementInfo.time);
if (!timeDiff)
timeDiff = 1;
// this is the distance doable by the player in 1 sec, using the time done to move to this point.
uint32 clientSpeedRate = distance2D * 1000 / timeDiff;
// we did the (uint32) cast to accept a margin of tolerance
if (clientSpeedRate > speedRate)
{
if (sConfigMgr->GetBoolDefault("Anticheat.WriteLog", false))
sLog->outString("AnticheatMgr:: Speed-Hack detected player %s (%u)", player->GetName().c_str(), player->GetGUIDLow());
BuildReport(player, SPEED_HACK_REPORT);
}
}
void AnticheatMgr::HandlePlayerLogin(Player* player)
{
// we must delete this to prevent errors in case of crash
CharacterDatabase.PExecute("DELETE FROM players_reports_status WHERE guid=%u", player->GetGUIDLow());
// we initialize the pos of lastMovementPosition var.
m_Players[player->GetGUIDLow()].SetPosition(player->GetPositionX(), player->GetPositionY(), player->GetPositionZ(), player->GetOrientation());
QueryResult resultDB = CharacterDatabase.PQuery("SELECT * FROM daily_players_reports WHERE guid=%u;", player->GetGUIDLow());
if (resultDB)
m_Players[player->GetGUIDLow()].SetDailyReportState(true);
}
void AnticheatMgr::HandlePlayerLogout(Player* player)
{
// TO-DO Make a table that stores the cheaters of the day, with more detailed information.
// We must also delete it at logout to prevent have data of offline players in the db when we query the database (IE: The GM Command)
CharacterDatabase.PExecute("DELETE FROM players_reports_status WHERE guid=%u", player->GetGUIDLow());
// Delete not needed data from the memory.
m_Players.erase(player->GetGUIDLow());
}
void AnticheatMgr::SavePlayerData(Player* player)
{
CharacterDatabase.PExecute("REPLACE INTO players_reports_status (guid,average,total_reports,speed_reports,fly_reports,jump_reports,waterwalk_reports,teleportplane_reports,climb_reports,creation_time) VALUES (%u,%f,%u,%u,%u,%u,%u,%u,%u,%u);", player->GetGUIDLow(), m_Players[player->GetGUIDLow()].GetAverage(), m_Players[player->GetGUIDLow()].GetTotalReports(), m_Players[player->GetGUIDLow()].GetTypeReports(SPEED_HACK_REPORT), m_Players[player->GetGUIDLow()].GetTypeReports(FLY_HACK_REPORT), m_Players[player->GetGUIDLow()].GetTypeReports(JUMP_HACK_REPORT), m_Players[player->GetGUIDLow()].GetTypeReports(WALK_WATER_HACK_REPORT), m_Players[player->GetGUIDLow()].GetTypeReports(TELEPORT_PLANE_HACK_REPORT), m_Players[player->GetGUIDLow()].GetTypeReports(CLIMB_HACK_REPORT), m_Players[player->GetGUIDLow()].GetCreationTime());
}
uint32 AnticheatMgr::GetTotalReports(uint32 lowGUID)
{
return m_Players[lowGUID].GetTotalReports();
}
float AnticheatMgr::GetAverage(uint32 lowGUID)
{
return m_Players[lowGUID].GetAverage();
}
uint32 AnticheatMgr::GetTypeReports(uint32 lowGUID, uint8 type)
{
return m_Players[lowGUID].GetTypeReports(type);
}
bool AnticheatMgr::MustCheckTempReports(uint8 type)
{
if (type == JUMP_HACK_REPORT)
return false;
return true;
}
void AnticheatMgr::BuildReport(Player* player, uint8 reportType)
{
uint32 key = player->GetGUIDLow();
if (MustCheckTempReports(reportType))
{
uint32 actualTime = getMSTime();
if (!m_Players[key].GetTempReportsTimer(reportType))
m_Players[key].SetTempReportsTimer(actualTime, reportType);
if (getMSTimeDiff(m_Players[key].GetTempReportsTimer(reportType), actualTime) < 3000)
{
m_Players[key].SetTempReports(m_Players[key].GetTempReports(reportType) + 1, reportType);
if (m_Players[key].GetTempReports(reportType) < 3)
return;
}
else
{
m_Players[key].SetTempReportsTimer(actualTime, reportType);
m_Players[key].SetTempReports(1, reportType);
return;
}
}
// generating creationTime for average calculation
if (!m_Players[key].GetTotalReports())
m_Players[key].SetCreationTime(getMSTime());
// increasing total_reports
m_Players[key].SetTotalReports(m_Players[key].GetTotalReports() + 1);
// increasing specific cheat report
m_Players[key].SetTypeReports(reportType, m_Players[key].GetTypeReports(reportType) + 1);
// diff time for average calculation
uint32 diffTime = getMSTimeDiff(m_Players[key].GetCreationTime(), getMSTime()) / IN_MILLISECONDS;
if (diffTime > 0)
{
// Average == Reports per second
float average = float(m_Players[key].GetTotalReports()) / float(diffTime);
m_Players[key].SetAverage(average);
}
if ((uint32)sConfigMgr->GetIntDefault("Anticheat.MaxReportsForDailyReport", 70) < m_Players[key].GetTotalReports())
{
if (!m_Players[key].GetDailyReportState())
{
CharacterDatabase.PExecute("REPLACE INTO daily_players_reports (guid,average,total_reports,speed_reports,fly_reports,jump_reports,waterwalk_reports,teleportplane_reports,climb_reports,creation_time) VALUES (%u,%f,%u,%u,%u,%u,%u,%u,%u,%u);", player->GetGUIDLow(), m_Players[player->GetGUIDLow()].GetAverage(), m_Players[player->GetGUIDLow()].GetTotalReports(), m_Players[player->GetGUIDLow()].GetTypeReports(SPEED_HACK_REPORT), m_Players[player->GetGUIDLow()].GetTypeReports(FLY_HACK_REPORT), m_Players[player->GetGUIDLow()].GetTypeReports(JUMP_HACK_REPORT), m_Players[player->GetGUIDLow()].GetTypeReports(WALK_WATER_HACK_REPORT), m_Players[player->GetGUIDLow()].GetTypeReports(TELEPORT_PLANE_HACK_REPORT), m_Players[player->GetGUIDLow()].GetTypeReports(CLIMB_HACK_REPORT), m_Players[player->GetGUIDLow()].GetCreationTime());
m_Players[key].SetDailyReportState(true);
}
}
if (m_Players[key].GetTotalReports() > (uint32)sConfigMgr->GetIntDefault("Anticheat.ReportsForIngameWarnings", 70))
{
// display warning at the center of the screen, hacky way?
std::string str = "";
str = "|cFFFFFC00[Playername:|cFF00FFFF[|cFF60FF00" + std::string(player->GetName().c_str()) + "|cFF00FFFF] Possible cheater!";
WorldPacket data(SMSG_NOTIFICATION, (str.size() + 1));
data << str;
sWorld->SendGlobalGMMessage(&data);
}
}
void AnticheatMgr::AnticheatGlobalCommand(ChatHandler* handler)
{
// MySQL will sort all for us, anyway this is not the best way we must only save the anticheat data not whole player's data!.
ObjectAccessor::SaveAllPlayers();
QueryResult resultDB = CharacterDatabase.Query("SELECT guid,average,total_reports FROM players_reports_status WHERE total_reports != 0 ORDER BY average ASC LIMIT 3;");
if (!resultDB)
{
handler->PSendSysMessage("No players found.");
return;
}
else
{
handler->SendSysMessage("=============================");
handler->PSendSysMessage("Players with the lowest averages:");
do
{
Field *fieldsDB = resultDB->Fetch();
uint32 guid = fieldsDB[0].GetUInt32();
float average = fieldsDB[1].GetFloat();
uint32 total_reports = fieldsDB[2].GetUInt32();
if (Player* player = sObjectMgr->GetPlayerByLowGUID(guid))
handler->PSendSysMessage("Player: %s Average: %f Total Reports: %u", player->GetName().c_str(), average, total_reports);
} while (resultDB->NextRow());
}
resultDB = CharacterDatabase.Query("SELECT guid,average,total_reports FROM players_reports_status WHERE total_reports != 0 ORDER BY total_reports DESC LIMIT 3;");
// this should never happen
if (!resultDB)
{
handler->PSendSysMessage("No players found.");
return;
}
else
{
handler->PSendSysMessage("=============================");
handler->PSendSysMessage("Players with the more reports:");
do
{
Field *fieldsDB = resultDB->Fetch();
uint32 guid = fieldsDB[0].GetUInt32();
float average = fieldsDB[1].GetFloat();
uint32 total_reports = fieldsDB[2].GetUInt32();
if (Player* player = sObjectMgr->GetPlayerByLowGUID(guid))
handler->PSendSysMessage("Player: %s Total Reports: %u Average: %f", player->GetName().c_str(), total_reports, average);
} while (resultDB->NextRow());
}
}
void AnticheatMgr::AnticheatDeleteCommand(uint32 guid)
{
if (!guid)
{
for (AnticheatPlayersDataMap::iterator it = m_Players.begin(); it != m_Players.end(); ++it)
{
(*it).second.SetTotalReports(0);
(*it).second.SetAverage(0);
(*it).second.SetCreationTime(0);
for (uint8 i = 0; i < MAX_REPORT_TYPES; i++)
{
(*it).second.SetTempReports(0, i);
(*it).second.SetTempReportsTimer(0, i);
(*it).second.SetTypeReports(i, 0);
}
}
CharacterDatabase.PExecute("DELETE FROM players_reports_status;");
}
else
{
m_Players[guid].SetTotalReports(0);
m_Players[guid].SetAverage(0);
m_Players[guid].SetCreationTime(0);
for (uint8 i = 0; i < MAX_REPORT_TYPES; i++)
{
m_Players[guid].SetTempReports(0, i);
m_Players[guid].SetTempReportsTimer(0, i);
m_Players[guid].SetTypeReports(i, 0);
}
CharacterDatabase.PExecute("DELETE FROM players_reports_status WHERE guid=%u;", guid);
}
}
void AnticheatMgr::ResetDailyReportStates()
{
for (AnticheatPlayersDataMap::iterator it = m_Players.begin(); it != m_Players.end(); ++it)
m_Players[(*it).first].SetDailyReportState(false);
}