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HTTP_FILTER_CONTEXT (Compact 2013)

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3/26/2014

This structure is used by HttpFilterProc to obtain information about the current request. This structure is very similar in function to an ISAPI extension's EXTENSION_CONTROL_BLOCK.

Syntax

typedef struct _HTTP_FILTER_CONTEXT {
  DWORD cbSize;
  DWORD Revision; 
  PVOID ServerContext; 
  DWORD ulReserved; 
  BOOL fIsSecurePort; 
  PVOID pFilterContext; 
  BOOL (WINAPI* GetServerVariable); 
  BOOL (WINAPI* AddResponseHeaders); 
  BOOL (WINAPI* WriteClient); 
  VOID* (WINAPI* AllocMem); 
  BOOL (WINAPI* ServerSupportFunction); 
} HTTP_FILTER_CONTEXT, *PHTTP_FILTER_CONTEXT;

Members

  • cbSize
    Size, in bytes, of this structure.
  • Revision
    Revision level of this structure.
  • ServerContext
    Reserved for server use.
  • ulReserved
    Reserved for server use.
  • fIsSecurePort
    TRUE if the event is over a secure port, and FALSE otherwise.
  • pFilterContext
    Pointer to any context information that the filter wants to associate with this request. Any memory associated with this request can be safely freed during the SF_NOTIFY_END_OF_NET_SESSION notification.
  • GetServerVariable
    Pointer to the GetServerVariable (ISAPI Filters) function that retrieves information about the server and this connection. For some notifications, some variables might not be defined. For example, notifications that occur before SF_NOTIFY_PREPROC_HEADERS might not be defined.
  • AddResponseHeaders
    Pointer to the AddResponseHeaders function that adds a header to the HTTP response.
  • AllocMem
    Pointer to the AllocMem function used to allocate memory. Any memory allocated with this function will automatically be freed when the session ends.

Requirements

Header

httpfilt.h

See Also

Reference

Web Server Structures
AllocMem
GetServerVariable (ISAPI Extensions)
ServerSupportFunction (ISAPI Filters)
WriteClient (ISAPI Filters)