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drawserv.cpp
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C/C++ Source or Header
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1998-03-26
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11KB
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409 lines
// DrawServ.cpp : Implementation of WinMain
//
// This is a part of the Active Template Library.
// Copyright (C) 1996-1998 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Active Template Library Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Active Template Library product.
//
// You will need the NT SUR Beta 2 SDK or VC 4.2 in order to build this
// project. This is because you will need MIDL 3.00.15 or higher and new
// headers and libs. If you have VC 4.2 installed, then everything should
// already be configured correctly.
// Note: Proxy/Stub Information
// To build a separate proxy/stub DLL,
// run nmake -f DrawServps.mak in the project directory.
#include "predraw.h"
#include "drawres.h"
#include "initguid.h"
#include "DrawServ.h"
#include "DrawObj.h"
#define IID_DEFINED
#include "DrawServ_i.c"
#include <stdio.h>
CServiceModule _Module;
BEGIN_OBJECT_MAP(ObjectMap)
OBJECT_ENTRY(CLSID_CDrawServ, CDrawObj)
END_OBJECT_MAP()
// Although some of these functions are big they are declared inline since they are only used once
inline HRESULT CServiceModule::RegisterServer(BOOL bRegTypeLib)
{
HRESULT hr = CoInitialize(NULL);
if (FAILED(hr))
return hr;
// Remove any previous service since it may point to
// the incorrect file
Uninstall();
// Add service entries
UpdateRegistryFromResource(IDR_DrawServ, TRUE);
// Create service
Install();
// Add object entries
HRESULT hRes = CComModule::RegisterServer(bRegTypeLib);
CoUninitialize();
return hRes;
}
inline HRESULT CServiceModule::UnregisterServer()
{
HRESULT hr = CoInitialize(NULL);
if (FAILED(hr))
return hr;
// Remove service entries
UpdateRegistryFromResource(IDR_DrawServ, FALSE);
// Remove service
Uninstall();
// Remove object entries
CComModule::UnregisterServer();
CoUninitialize();
return S_OK;
}
inline void CServiceModule::Init(_ATL_OBJMAP_ENTRY* p, HINSTANCE h, UINT nServiceNameID)
{
CComModule::Init(p, h);
m_bService = TRUE;
LoadString(h, nServiceNameID, m_szServiceName, sizeof(m_szServiceName) / sizeof(TCHAR));
// set up the initial service status
m_hServiceStatus = NULL;
m_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
m_status.dwCurrentState = SERVICE_STOPPED;
m_status.dwControlsAccepted = SERVICE_ACCEPT_STOP;
m_status.dwWin32ExitCode = 0;
m_status.dwServiceSpecificExitCode = 0;
m_status.dwCheckPoint = 0;
m_status.dwWaitHint = 0;
}
LONG CServiceModule::Unlock()
{
LONG l = CComModule::Unlock();
if (l == 0 && !m_bService)
PostThreadMessage(dwThreadID, WM_QUIT, 0, 0);
return l;
}
BOOL CServiceModule::IsInstalled()
{
BOOL bResult = FALSE;
SC_HANDLE hSCM = ::OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
if (hSCM != NULL)
{
SC_HANDLE hService = ::OpenService(hSCM, m_szServiceName, SERVICE_QUERY_CONFIG);
if (hService != NULL)
{
bResult = TRUE;
::CloseServiceHandle(hService);
}
::CloseServiceHandle(hSCM);
}
return bResult;
}
inline BOOL CServiceModule::Install()
{
if (IsInstalled())
return TRUE;
SC_HANDLE hSCM = ::OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
if (hSCM == NULL)
{
MessageBox(NULL, _T("Couldn't open service manager"), m_szServiceName, MB_OK);
return FALSE;
}
// Get the executable file path
TCHAR szFilePath[_MAX_PATH];
::GetModuleFileName(NULL, szFilePath, _MAX_PATH);
SC_HANDLE hService = ::CreateService(
hSCM, m_szServiceName, m_szServiceName,
SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS,
SERVICE_DEMAND_START, SERVICE_ERROR_NORMAL,
szFilePath, NULL, NULL, _T("RPCSS\0"), NULL, NULL);
if (hService == NULL)
{
::CloseServiceHandle(hSCM);
MessageBox(NULL, _T("Couldn't create service"), m_szServiceName, MB_OK);
return FALSE;
}
::CloseServiceHandle(hService);
::CloseServiceHandle(hSCM);
return TRUE;
}
inline BOOL CServiceModule::Uninstall()
{
if (!IsInstalled())
return TRUE;
SC_HANDLE hSCM = ::OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
if (hSCM == NULL)
{
MessageBox(NULL, _T("Couldn't open service manager"), m_szServiceName, MB_OK);
return FALSE;
}
SC_HANDLE hService = ::OpenService(hSCM, m_szServiceName, SERVICE_STOP | DELETE);
if (hService == NULL)
{
::CloseServiceHandle(hSCM);
MessageBox(NULL, _T("Couldn't open service"), m_szServiceName, MB_OK);
return FALSE;
}
SERVICE_STATUS status;
::ControlService(hService, SERVICE_CONTROL_STOP, &status);
BOOL bDelete = ::DeleteService(hService);
::CloseServiceHandle(hService);
::CloseServiceHandle(hSCM);
if (bDelete)
return TRUE;
MessageBox(NULL, _T("Service could not be deleted"), m_szServiceName, MB_OK);
return FALSE;
}
///////////////////////////////////////////////////////////////////////////////////////
// Logging functions
void CServiceModule::LogEvent(LPCTSTR pFormat, ...)
{
TCHAR chMsg[256];
HANDLE hEventSource;
LPTSTR lpszStrings[1];
va_list pArg;
va_start(pArg, pFormat);
_vstprintf(chMsg, pFormat, pArg);
va_end(pArg);
lpszStrings[0] = chMsg;
if (m_bService)
{
/* Get a handle to use with ReportEvent(). */
hEventSource = RegisterEventSource(NULL, m_szServiceName);
if (hEventSource)
{
/* Write to event log. */
ReportEvent(hEventSource, EVENTLOG_INFORMATION_TYPE, 0, 0, NULL, 1, 0, (LPCTSTR*) &lpszStrings[0], NULL);
DeregisterEventSource(hEventSource);
}
}
else
{
// As we are not running as a service, just write the error to the console.
_putts(chMsg);
}
}
//////////////////////////////////////////////////////////////////////////////////////////////
// Service startup and registration
inline void CServiceModule::Start()
{
SERVICE_TABLE_ENTRY st[] =
{
{ m_szServiceName, _ServiceMain },
{ NULL, NULL }
};
if (m_bService && !::StartServiceCtrlDispatcher(st))
{
m_bService = FALSE;
}
if (m_bService == FALSE)
Run();
}
inline void CServiceModule::ServiceMain(DWORD /* dwArgc */, LPTSTR* /* lpszArgv */)
{
// Register the control request handler
m_status.dwCurrentState = SERVICE_START_PENDING;
m_hServiceStatus = RegisterServiceCtrlHandler(m_szServiceName, _Handler);
if (m_hServiceStatus == NULL)
{
LogEvent(_T("Handler not installed"));
return;
}
SetServiceStatus(SERVICE_START_PENDING);
m_status.dwWin32ExitCode = S_OK;
m_status.dwCheckPoint = 0;
m_status.dwWaitHint = 0;
// When the Run function returns, the service has stopped.
Run();
SetServiceStatus(SERVICE_STOPPED);
LogEvent(_T("Service stopped"));
}
inline void CServiceModule::Handler(DWORD dwOpcode)
{
switch (dwOpcode)
{
case SERVICE_CONTROL_STOP:
SetServiceStatus(SERVICE_STOP_PENDING);
PostThreadMessage(dwThreadID, WM_QUIT, 0, 0);
break;
case SERVICE_CONTROL_PAUSE:
break;
case SERVICE_CONTROL_CONTINUE:
break;
case SERVICE_CONTROL_INTERROGATE:
break;
case SERVICE_CONTROL_SHUTDOWN:
break;
default:
LogEvent(_T("Bad service request"));
}
}
void WINAPI CServiceModule::_ServiceMain(DWORD dwArgc, LPTSTR* lpszArgv)
{
_Module.ServiceMain(dwArgc, lpszArgv);
}
void WINAPI CServiceModule::_Handler(DWORD dwOpcode)
{
_Module.Handler(dwOpcode);
}
void CServiceModule::SetServiceStatus(DWORD dwState)
{
m_status.dwCurrentState = dwState;
::SetServiceStatus(m_hServiceStatus, &m_status);
}
void CServiceModule::Run()
{
HRESULT hr;
_Module.dwThreadID = GetCurrentThreadId();
// If you are running on NT 4.0 or higher you can use the following call
// to make your service free threaded.
// This means that calls come in on a random RPC thread
hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
// Otherwise, for single threaded use
// hr = CoInitialize(NULL);
ATLASSERT(SUCCEEDED(hr));
// In NT 4.0 and higher where DCOM is supported you may wish to initialize
// the security layer. The following code will give you a DCOM service which
// would allow ALL users access to objects
CSecurityDescriptor sd;
sd.InitializeFromThreadToken();
hr = CoInitializeSecurity(NULL, -1, NULL, NULL,
RPC_C_AUTHN_LEVEL_NONE, RPC_C_IMP_LEVEL_IDENTIFY, NULL, EOAC_NONE, NULL);
ATLASSERT(SUCCEEDED(hr));
// If you wish to have your object creatable remotely using DCOM use the following
hr = _Module.RegisterClassObjects(CLSCTX_LOCAL_SERVER | CLSCTX_REMOTE_SERVER, REGCLS_MULTIPLEUSE);
// Otherwise, only local activation
// hr = _Module.RegisterClassObjects(CLSCTX_LOCAL_SERVER, REGCLS_MULTIPLEUSE);
ATLASSERT(SUCCEEDED(hr));
LogEvent(_T("Service started"));
SetServiceStatus(SERVICE_RUNNING);
MSG msg;
while (GetMessage(&msg, 0, 0, 0))
DispatchMessage(&msg);
_Module.RevokeClassObjects();
CoUninitialize();
}
/////////////////////////////////////////////////////////////////////////////
//
extern "C" int WINAPI _tWinMain(HINSTANCE hInstance, HINSTANCE /* hPrevInstance */,
LPTSTR lpCmdLine, int /* nShowCmd */)
{
_Module.Init(ObjectMap, hInstance, IDS_SERVICENAME);
_Module.m_bService = TRUE;
TCHAR szTokens[] = _T("-/");
LPTSTR lpszToken = _tcstok(lpCmdLine, szTokens);
while (lpszToken != NULL)
{
if (_tcsicmp(lpszToken, _T("UnregServer"))==0)
return _Module.UnregisterServer();
if (_tcsicmp(lpszToken, _T("RegServer"))==0)
return _Module.RegisterServer(TRUE);
if (_tcsicmp(lpszToken, _T("Embedding"))==0)
_Module.m_bService = FALSE;
if (_tcsicmp(lpszToken, _T("LocalServer"))==0)
{
_Module.SetupAsLocalServer();
return 0;
}
lpszToken = _tcstok(NULL, szTokens);
}
_Module.Start();
// When we get here, the service has been stopped
return _Module.m_status.dwWin32ExitCode;
}
void CServiceModule::SetupAsLocalServer()
{
USES_CONVERSION;
CRegKey keyClasses,key;
LPOLESTR pCLSID;
Uninstall();
if (keyClasses.Open(HKEY_CLASSES_ROOT, _T("CLSID")) != ERROR_SUCCESS)
return;
_ATL_OBJMAP_ENTRY* pEntry = m_pObjMap;
while (pEntry->pclsid != NULL)
{
StringFromCLSID(*pEntry->pclsid, &pCLSID);
if (key.Open(keyClasses, OLE2T(pCLSID)) == ERROR_SUCCESS)
{
TCHAR szModule[_MAX_PATH];
key.DeleteValue(_T("AppID"));
key.DeleteValue(_T("_LocalServer32"));
GetModuleFileName(GetModuleInstance(), szModule, _MAX_PATH);
key.SetKeyValue(_T("LocalServer32"), szModule, _T(""));
}
pEntry++;
}
}