IHttpSecurity Interface

IID_IHttpSecurity

{79EAC9D7-BAFA-11CE-8C82-00AA004BA90B}

This interface notifies a client application of authentication problems.

Urlmon.dll uses the QueryInterface method on your implementation of IBindStatusCallback to obtain a pointer to your IHttpSecurity interface. If the application is hosting Mshtml.dll, Mshtml.dll will request a pointer to your IHttpSecurity interface by calling QueryInterface on your IServiceProvider interface.

Methods in VTable order

IUnknown Methods

Description

QueryInterface

Returns pointers to supported interfaces.

AddRef

Increments reference count.

Release

Decrements reference count.

IWindowForBindingUI Method

Description

GetWindow

Retrieves a handle to a window to present information in the user interface during a bind operation.

IHttpSecurity Method

Description

OnSecurityProblem

Notifies the client application about an authentication problem.

IHttpSecurity interface implementation

$IID_IHttpSecurity = GUID$("{79EAC9D7-BAFA-11CE-8C82-00AA004BA90B}")

' ****************************************************************************************
' IHttpSecurity interface virtual table
' ****************************************************************************************
TYPE IHttpSecurityVtbl
   ' IUnknown methods
   pQueryInterface         AS DWORD          ' // QueryInterface method
   pAddRef                 AS DWORD          ' // AddRef method
   pRelease                AS DWORD          ' // Release method
   ' IWindowForBindingUI method
   pGetWindow              AS DWORD          ' // GetWindow method
   ' IHttpSecurity method
   pOnSecurityProblem      AS DWORD          ' // OnSecurityProblem method
   ' Custom data
   pVtblAddr               AS DWORD          ' // Address of the virtual table
   cRef                    AS DWORD          ' // Reference count
END TYPE
' ****************************************************************************************

' ****************************************************************************************
' Builds the IHttpSecurity Virtual Table
' Returns a cookie that is a pointer to a IHttpSecurityVtbl structure.
' ****************************************************************************************
FUNCTION IHttpSecurity_BuildVtbl () AS DWORD

   LOCAL pVtbl AS IHttpSecurityVtbl PTR
   LOCAL pUnk AS IHttpSecurityVtbl PTR

   pVtbl = HeapAlloc(GetProcessHeap(), %HEAP_ZERO_MEMORY, SIZEOF(@pVtbl))
   IF pVtbl = 0 THEN EXIT FUNCTION

   @pVtbl.pQueryInterface         = CODEPTR(IHttpSecurity_QueryInterface)
   @pVtbl.pAddRef                 = CODEPTR(IHttpSecurity_AddRef)
   @pVtbl.pRelease                = CODEPTR(IHttpSecurity_Release)

   @pVtbl.pGetWindow              = CODEPTR(IHttpSecurity_GetWindow)
   @pVtbl.pOnSecurityProblem      = CODEPTR(IHttpSecurity_OnSecurityProblem)

   @pVtbl.pVtblAddr               = pVtbl
   @pVtbl.cRef                    = 1

   pUnk = VARPTR(@pVtbl.pVtblAddr)
   FUNCTION = pUnk

END FUNCTION
' ****************************************************************************************

' ****************************************************************************************
' IHttpSecurity_QueryInterface method
' Returns the IUnknown of our class and increments the reference counter.
' ****************************************************************************************
FUNCTION IHttpSecurity_QueryInterface (BYVAL pCookie AS IHttpSecurityVtbl PTR, BYREF riid AS GUID, BYREF ppvObj AS DWORD) AS LONG
   IF riid = $IID_IHttpSecurity THEN
      ppvObj = pCookie
      INCR @@pCookie.cRef
      FUNCTION = %S_OK
   ELSE
      FUNCTION = %E_NOINTERFACE
   END IF
END FUNCTION
' ****************************************************************************************

' ****************************************************************************************
' IHttpSecurity_IUnknown_AddRef method
' Increments the reference counter.
' ****************************************************************************************
FUNCTION IHttpSecurity_AddRef (BYVAL pCookie AS IHttpSecurityVtbl PTR) AS DWORD
   INCR @@pCookie.cRef
   FUNCTION = @@pCookie.cRef
END FUNCTION
' ****************************************************************************************

' ****************************************************************************************
' IHttpSecurity_IUnknown_Release method
' Releases our class if there is only a reference to him and decrements the reference counter.
' ****************************************************************************************
FUNCTION IHttpSecurity_Release (BYVAL pCookie AS IHttpSecurityVtbl PTR) AS DWORD
   DECR @@pCookie.cRef
   FUNCTION = @@pCookie.cRef
   IF @@pCookie.cRef = 0 THEN
      IF ISTRUE @@pCookie.pVtblAddr THEN
         HeapFree(GetProcessHeap(), 0, BYVAL @@pCookie.pVtblAddr)
      END IF
   END IF
END FUNCTION
' ****************************************************************************************

' ****************************************************************************************
' Retrieves a handle to a window to present information in the user interface during a
' bind operation.
' ****************************************************************************************
FUNCTION IHttpSecurity_GetWindow (BYVAL pCookie AS IHttpSecurityVtbl PTR, BYREF rguidReason AS GUID, BYREF phwnd AS DWORD) AS LONG

   ' Put your code here
   ' FUNCTION = %S_OK or %E_INVALIDARG

END FUNCTION
' ****************************************************************************************

' ****************************************************************************************
' Notifies the client application about an authentication problem.
' ****************************************************************************************
FUNCTION IHttpSecurity_OnSecurityProblem (BYVAL pCookie AS IHttpSecurityVtbl PTR, BYVAL dwProblem AS DWORD) AS LONG

   ' Put your code here
   ' FUNCTION = %RPC_RETRY or %S_FALSE or %E_ABORT

END FUNCTION
' ****************************************************************************************