wownero/src/daemonizer/windows_service.cpp

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2015-12-31 06:39:56 +00:00
// Copyright (c) 2014-2016, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#undef UNICODE
#undef _UNICODE
#include "common/scoped_message_writer.h"
#include "daemonizer/windows_service.h"
#include "string_tools.h"
#include <chrono>
#include <iostream>
#include <utility>
#include <memory>
#include <shellapi.h>
#include <thread>
#include <windows.h>
namespace windows {
namespace {
typedef std::unique_ptr<std::remove_pointer<SC_HANDLE>::type, decltype(&::CloseServiceHandle)> service_handle;
std::string get_last_error()
{
LPSTR p_error_text = nullptr;
FormatMessage(
FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_ALLOCATE_BUFFER
| FORMAT_MESSAGE_IGNORE_INSERTS
, nullptr
, GetLastError()
, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT)
, reinterpret_cast<LPSTR>(&p_error_text)
, 0
, nullptr
);
if (nullptr == p_error_text)
{
return "";
}
else
{
return std::string{p_error_text};
LocalFree(p_error_text);
}
}
bool relaunch_as_admin(
std::string const & command
, std::string const & arguments
)
{
SHELLEXECUTEINFO info{};
info.cbSize = sizeof(info);
info.lpVerb = "runas";
info.lpFile = command.c_str();
info.lpParameters = arguments.c_str();
info.hwnd = nullptr;
info.nShow = SW_SHOWNORMAL;
if (!ShellExecuteEx(&info))
{
tools::fail_msg_writer() << "Admin relaunch failed: " << get_last_error();
return false;
}
else
{
return true;
}
}
// When we relaunch as admin, Windows opens a new window. This just pauses
// to allow the user to read any output.
void pause_to_display_admin_window_messages()
{
boost::chrono::milliseconds how_long{1500};
boost::this_thread::sleep_for(how_long);
}
}
bool check_admin(bool & result)
{
BOOL is_admin = FALSE;
PSID p_administrators_group = nullptr;
SID_IDENTIFIER_AUTHORITY nt_authority = SECURITY_NT_AUTHORITY;
if (!AllocateAndInitializeSid(
&nt_authority
, 2
, SECURITY_BUILTIN_DOMAIN_RID
, DOMAIN_ALIAS_RID_ADMINS
, 0, 0, 0, 0, 0, 0
, &p_administrators_group
))
{
tools::fail_msg_writer() << "Security Identifier creation failed: " << get_last_error();
return false;
}
if (!CheckTokenMembership(
nullptr
, p_administrators_group
, &is_admin
))
{
tools::fail_msg_writer() << "Permissions check failed: " << get_last_error();
return false;
}
result = is_admin ? true : false;
return true;
}
bool ensure_admin(
std::string const & arguments
)
{
bool admin;
if (!check_admin(admin))
{
return false;
}
if (admin)
{
return true;
}
else
{
std::string command = epee::string_tools::get_current_module_path();
relaunch_as_admin(command, arguments);
return false;
}
}
bool install_service(
std::string const & service_name
, std::string const & arguments
)
{
std::string command = epee::string_tools::get_current_module_path();
std::string full_command = command + arguments;
service_handle p_manager{
OpenSCManager(
nullptr
, nullptr
, SC_MANAGER_CONNECT | SC_MANAGER_CREATE_SERVICE
)
, &::CloseServiceHandle
};
if (p_manager == nullptr)
{
tools::fail_msg_writer() << "Couldn't connect to service manager: " << get_last_error();
return false;
}
service_handle p_service{
CreateService(
p_manager.get()
, service_name.c_str()
, service_name.c_str()
, 0
//, GENERIC_EXECUTE | GENERIC_READ
, SERVICE_WIN32_OWN_PROCESS
, SERVICE_DEMAND_START
, SERVICE_ERROR_NORMAL
, full_command.c_str()
, nullptr
, nullptr
, ""
//, "NT AUTHORITY\\LocalService"
, nullptr // Implies LocalSystem account
, nullptr
)
, &::CloseServiceHandle
};
if (p_service == nullptr)
{
tools::fail_msg_writer() << "Couldn't create service: " << get_last_error();
return false;
}
tools::success_msg_writer() << "Service installed";
pause_to_display_admin_window_messages();
return true;
}
bool start_service(
std::string const & service_name
)
{
tools::msg_writer() << "Starting service";
SERVICE_STATUS_PROCESS service_status = {};
DWORD unused = 0;
service_handle p_manager{
OpenSCManager(
nullptr
, nullptr
, SC_MANAGER_CONNECT
)
, &::CloseServiceHandle
};
if (p_manager == nullptr)
{
tools::fail_msg_writer() << "Couldn't connect to service manager: " << get_last_error();
return false;
}
service_handle p_service{
OpenService(
p_manager.get()
, service_name.c_str()
//, SERVICE_START | SERVICE_QUERY_STATUS
, SERVICE_START
)
, &::CloseServiceHandle
};
if (p_service == nullptr)
{
tools::fail_msg_writer() << "Couldn't find service: " << get_last_error();
return false;
}
if (!StartService(
p_service.get()
, 0
, nullptr
))
{
tools::fail_msg_writer() << "Service start request failed: " << get_last_error();
return false;
}
tools::success_msg_writer() << "Service started";
pause_to_display_admin_window_messages();
return true;
}
bool stop_service(
std::string const & service_name
)
{
tools::msg_writer() << "Stopping service";
service_handle p_manager{
OpenSCManager(
nullptr
, nullptr
, SC_MANAGER_CONNECT
)
, &::CloseServiceHandle
};
if (p_manager == nullptr)
{
tools::fail_msg_writer() << "Couldn't connect to service manager: " << get_last_error();
return false;
}
service_handle p_service{
OpenService(
p_manager.get()
, service_name.c_str()
, SERVICE_STOP | SERVICE_QUERY_STATUS
)
, &::CloseServiceHandle
};
if (p_service == nullptr)
{
tools::fail_msg_writer() << "Couldn't find service: " << get_last_error();
return false;
}
SERVICE_STATUS status = {};
if (!ControlService(p_service.get(), SERVICE_CONTROL_STOP, &status))
{
tools::fail_msg_writer() << "Couldn't request service stop: " << get_last_error();
return false;
}
tools::success_msg_writer() << "Service stopped";
pause_to_display_admin_window_messages();
return true;
}
bool uninstall_service(
std::string const & service_name
)
{
service_handle p_manager{
OpenSCManager(
nullptr
, nullptr
, SC_MANAGER_CONNECT
)
, &::CloseServiceHandle
};
if (p_manager == nullptr)
{
tools::fail_msg_writer() << "Couldn't connect to service manager: " << get_last_error();
return false;
}
service_handle p_service{
OpenService(
p_manager.get()
, service_name.c_str()
, SERVICE_QUERY_STATUS | DELETE
)
, &::CloseServiceHandle
};
if (p_service == nullptr)
{
tools::fail_msg_writer() << "Couldn't find service: " << get_last_error();
return false;
}
SERVICE_STATUS status = {};
if (!DeleteService(p_service.get()))
{
tools::fail_msg_writer() << "Couldn't uninstall service: " << get_last_error();
return false;
}
tools::success_msg_writer() << "Service uninstalled";
pause_to_display_admin_window_messages();
return true;
}
} // namespace windows