Files
deskflow/src/lib/platform/MSWindowsWatchdog.h

88 lines
2.3 KiB
C++

/*
* Deskflow -- mouse and keyboard sharing utility
* SPDX-FileCopyrightText: (C) 2012 - 2025 Symless Ltd.
* SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
*/
#pragma once
#include "deskflow/XDeskflow.h"
#include "platform/MSWindowsProcess.h"
#include "platform/MSWindowsSession.h"
#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include <memory>
#include <optional>
#include <string>
typedef VOID(WINAPI *SendSas)(BOOL asUser);
class Thread;
class FileLogOutputter;
class MSWindowsWatchdog
{
enum class ProcessState
{
Idle,
StartScheduled,
StartPending,
StopPending,
Running
};
public:
MSWindowsWatchdog(bool foreground);
~MSWindowsWatchdog() = default;
void startAsync();
void setProcessConfig(const std::string &command, bool elevate);
void stop();
bool isProcessRunning();
void setFileLogOutputter(FileLogOutputter *outputter);
private:
void mainLoop(void *);
void outputLoop(void *);
void shutdownExistingProcesses();
HANDLE duplicateProcessToken(HANDLE process, LPSECURITY_ATTRIBUTES security);
HANDLE getUserToken(LPSECURITY_ATTRIBUTES security, bool elevatedToken);
void startProcess();
void setStartupInfo(STARTUPINFO &si);
void handleStartError(const std::string_view &message = "");
void initOutputReadPipe();
void initSasFunc();
void sendSas() const;
/**
* @brief Re-run the process to get the active desktop name.
*
* It is necessary to run a utility process because the daemon runs in session 0, which does not
* have access to the active desktop, and so cannot query it's name.
*
* @return std::string The name of the active desktop.
*/
std::string runActiveDesktopUtility();
static std::string processStateToString(ProcessState state);
private:
Thread *m_thread = nullptr;
bool m_running = true;
HANDLE m_outputWritePipe = nullptr;
HANDLE m_outputReadPipe = nullptr;
Thread *m_outputThread = nullptr;
bool m_elevateProcess = false;
MSWindowsSession m_session;
int m_startFailures = 0;
FileLogOutputter *m_fileLogOutputter = nullptr;
bool m_foreground;
std::string m_activeDesktop;
std::unique_ptr<deskflow::platform::MSWindowsProcess> m_process;
std::optional<double> m_nextStartTime = std::nullopt;
ProcessState m_processState = ProcessState::Idle;
std::string m_command = "";
SendSas m_sendSasFunc = nullptr;
};