AntiCheat/CheatMonitor.cpp at main · williammuji/AntiCheat · GitHub

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#include "CheatMonitor.h"
#include "CheatMonitorEngine.h"
#include "utils/SystemUtils.h"

#include <memory>
#include <mutex>
#include <thread>

struct CheatMonitor::Pimpl : public CheatMonitorEngine
{
};

CheatMonitor &CheatMonitor::GetInstance()
{
    static CheatMonitor instance;
    return instance;
}

CheatMonitor::CheatMonitor() : m_pimpl(nullptr) {}
CheatMonitor::~CheatMonitor() { Shutdown(); }

bool CheatMonitor::Initialize()
{
    if (!m_pimpl)
    {
        m_pimpl = std::make_unique<Pimpl>();
        m_pimpl->m_isSystemActive = true;
        m_pimpl->m_monitorThread = std::thread(&CheatMonitorEngine::MonitorLoop, m_pimpl.get());
    }
    return true;
}

void CheatMonitor::OnPlayerLogin(uint32_t user_id, const std::string &user_name)
{
    if (m_pimpl)
    {
        std::lock_guard<std::mutex> lock(m_pimpl->m_sessionMutex);
        m_pimpl->m_currentUserId = user_id;
        m_pimpl->m_currentUserName = user_name;
        m_pimpl->m_isSessionActive = true;
        m_pimpl->m_hasServerConfig = true;
        m_pimpl->WakeMonitor();
    }
}

void CheatMonitor::OnPlayerLogout()
{
    if (m_pimpl)
    {
        m_pimpl->m_isSessionActive = false;
        m_pimpl->ResetSessionState();
    }
}

void CheatMonitor::Shutdown()
{
    if (m_pimpl && m_pimpl->m_isSystemActive.load())
    {
        m_pimpl->m_isSystemActive = false;
        m_pimpl->WakeMonitor();
        if (m_pimpl->m_monitorThread.joinable())
        {
            m_pimpl->m_monitorThread.join();
        }
    }
    m_pimpl.reset();
}

void CheatMonitor::OnServerConfigUpdated()
{
    if (m_pimpl)
    {
        m_pimpl->OnConfigUpdated();
        m_pimpl->m_hasServerConfig = true;
        m_pimpl->WakeMonitor();
    }
}

void CheatMonitor::SetGameWindow(void *hwnd)
{
    if (m_pimpl) m_pimpl->m_gameWindowHandle.store(reinterpret_cast<uintptr_t>(hwnd), std::memory_order_relaxed);
}

void CheatMonitor::SubmitTargetedSensorRequest(const std::string &request_id, const std::string &sensor_name)
{
    if (m_pimpl) m_pimpl->SubmitTargetedScanRequest(request_id, sensor_name);
}

void CheatMonitor::SubmitTargetedSensorRequest(const anti_cheat::TargetedSensorCommand &command)
{
    if (m_pimpl) m_pimpl->SubmitTargetedScanRequest(command.request_id(), command.sensor_name());
}

void CheatMonitor::UploadSnapshot()
{
    if (m_pimpl) m_pimpl->UploadSnapshotReport();
}

bool CheatMonitor::IsCallerLegitimate()
{
    if (!m_pimpl) return true;
    return m_pimpl->IsAddressInLegitimateModule(_ReturnAddress());
}

CheatMonitorEngine::CheatMonitorEngine()
{
    m_windowsVersion = SystemUtils::GetWindowsVersion();
    // 动态获取反作弊模块句柄（支持静态编译到EXE或单独作为DLL）
    GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
                       reinterpret_cast<LPCWSTR>(CheatMonitor::GetInstance), &m_hSelfModule);

    // 生成会话 ID (类似 UUID 格式)
    char session[37];
    const char *chars = "abcdef0123456789";
    for (int i = 0; i < 36; ++i)
    {
        if (i == 8 || i == 13 || i == 18 || i == 23)
            session[i] = '-';
        else
            session[i] = chars[m_rng() % 16];
    }
    session[36] = 0;
    m_sessionId = session;
}

CheatMonitorEngine::~CheatMonitorEngine()
{
    if (m_wmiMonitor)
    {
        m_wmiMonitor->Shutdown();
        m_wmiMonitor.reset();
    }
    UnregisterDllNotification();
}