/*++

   Copyright (c) 1998-2002 Microsoft Corporation.  All rights reserved.

--*/

#ifndef WEB_EXE_BLOCK_FILTER_H_
#define WEB_EXE_BLOCK_FILTER_H_

class CWebExeBlockFilterImpl;

class CWebExeBlockFilter  
{
public:

    CWebExeBlockFilter();
    virtual ~CWebExeBlockFilter();

    DWORD Init();
    DWORD Reload();
    DWORD Shutdown();

    //
    //  Register/Unregister the filter with ISA storage
    //
    HRESULT Register();
    HRESULT Unregister();
    
    //
    //  Register for notifications
    //
    BOOL RegisterISAPINotifications (PHTTP_FILTER_VERSION pVer);
    BOOL RegisterWpxNotifications (PHTTP_FILTER_VERSION pVer);

    //
    //  Notifications Entry Point
    //
    DWORD HttpFilterProc (
                    PHTTP_FILTER_CONTEXT  pfc, 
                    DWORD                 notificationType,
                    LPVOID                pvNotification);

    DWORD HttpWpxFilterProc (
                    PHTTP_FILTER_CONTEXT  pfc, 
                    DWORD                 notificationType, 
                    LPVOID                pvNotification);

private:
    //
    // Helper functions
    //
    HRESULT GetWebFilters(IFPCWebFilters** ppWebFilters);
    HRESULT AddWebFilter(IFPCWebFilters* pWebFilters);
    HRESULT RemoveWebFilter(IFPCWebFilters* pWebFilters);

private:

    BOOL                      m_fCalledInit; 
    CWebExeBlockFilterImpl    m_FilterImpl;
};

#endif //WEB_EXE_BLOCK_FILTER_H_