cbisapi.cpp

讲mfc的书

// cbisapi.cpp : Defines the initialization routines for the DLL.
//

#include "stdafx.h"
#include "cbisapi.h"
#include "IServer.h"
#include <malloc.h>
#include <afxconv.h>

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CCbisapiApp

BEGIN_MESSAGE_MAP(CCbisapiApp, CWinApp)
	//{{AFX_MSG_MAP(CCbisapiApp)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCbisapiApp construction

CCbisapiApp::CCbisapiApp()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
}

/////////////////////////////////////////////////////////////////////////////
// The one and only CCbisapiApp object

CCbisapiApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CCbisapiApp initialization

BOOL CCbisapiApp::InitInstance()
{
	// Register all OLE server (factories) as running.  This enables the
	//  OLE libraries to create objects from other applications.
	COleObjectFactory::RegisterAll();
	return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// Special entry points required for inproc servers

STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv)
{
	AFX_MANAGE_STATE(AfxGetStaticModuleState());
	return AfxDllGetClassObject(rclsid, riid, ppv);
}

STDAPI DllCanUnloadNow(void)
{
	AFX_MANAGE_STATE(AfxGetStaticModuleState());
	return AfxDllCanUnloadNow();
}

// by exporting DllRegisterServer, you can use regsvr.exe
STDAPI DllRegisterServer(void)
{
	AFX_MANAGE_STATE(AfxGetStaticModuleState());
	COleObjectFactory::UpdateRegistryAll();
	return S_OK;
}

// ISAPI Functions
 BOOL WINAPI GetExtensionVersion (HSE_VERSION_INFO *pVer)
	{
	pVer->dwExtensionVersion=MAKELONG(HSE_VERSION_MINOR,HSE_VERSION_MAJOR);
	lstrcpyn(pVer->lpszExtensionDesc,
		"OLE object ISAPI Gateway. Copyright 1997 by Al Williams",
		HSE_MAX_EXT_DLL_NAME_LEN);
	return TRUE;
	}

 DWORD WINAPI HttpExtensionProc(EXTENSION_CONTROL_BLOCK *lpEcb)
	{
	// create IsapiServer object
	USES_CONVERSION;
	CoInitialize(NULL);
	CIsapiServer svr;
	svr.SetECB(lpEcb);
	// create user's object
	COleDispatchDriver obj;
	COleException x;
	DWORD siz;
	CString str;
	OLECHAR *name;
	char *plus,*colon;
	colon=strchr(lpEcb->lpszQueryString,':');
	plus=strchr(lpEcb->lpszQueryString,'+');
	if (plus) *plus='\0';
	if (colon) 
		{
		*colon='\0';
		name=A2W(colon+1);
		}
	else
		name=L"ISAPI";
	if (!obj.CreateDispatch(lpEcb->lpszQueryString,&x))
		{
		str.Format("Can't create %s %x",lpEcb->lpszQueryString,x.m_sc);
		siz=str.GetLength();
		lpEcb->WriteClient(lpEcb->ConnID,(LPVOID)(LPCSTR)str,&siz,0);
		return HSE_STATUS_SUCCESS;
		}
	if (plus) *plus='+';
	*colon=':';
	// call user's object ISAPI method passing IsapiServer object
	DISPID dispid;
	static BYTE params[]= VTS_DISPATCH;
	IDispatch * dsptch=svr.GetIDispatch(FALSE);
	if (FAILED(obj.m_lpDispatch->GetIDsOfNames(IID_NULL,&name,1, LOCALE_SYSTEM_DEFAULT,&dispid)))
		{
		str.Format("Can't find method %s",colon?colon+1:"ISAPI");
		siz=str.GetLength();
		lpEcb->WriteClient(lpEcb->ConnID,(LPVOID)(LPCSTR)str,&siz,0);
		return HSE_STATUS_SUCCESS;
		}
	try 
		{
		obj.InvokeHelper(dispid,DISPATCH_METHOD,VT_EMPTY,NULL,params,dsptch);
		}
	catch (COleException *e)
		{
		str.Format("COleException: &H%x",	e->m_sc);
		siz=str.GetLength();
		lpEcb->WriteClient(lpEcb->ConnID,(LPVOID)(LPCSTR)str,&siz,0);
		}
	catch (COleDispatchException *e)
		{
		str.Format("COleDispatchException: %s",	e->m_strDescription);
		siz=str.GetLength();
		lpEcb->WriteClient(lpEcb->ConnID,(LPVOID)(LPCSTR)str,&siz,0);
		}
	catch (...)
		{
		str.Format("Unknown Exception!");
		siz=str.GetLength();
		lpEcb->WriteClient(lpEcb->ConnID,(LPVOID)(LPCSTR)str,&siz,0);
		}
	// return status
	CoUninitialize();
	return svr.GetRV(); // init
	}