The ReturnAuthRequiredIfAuthUserDenied property gets or sets a Boolean value that indicates whether to return a Proxy Authentication Required message when a user is authenticated by the ISA Server Web proxy but is denied access by the rules. By default, an access denied message is returned, and the user is not given the option of authenticating with different credentials.

HRESULT get_ReturnAuthRequiredIfAuthUserDenied(
  VARIANT_BOOL** pfReturnAuthRequiredIfAuthUserDenied );

HRESULT put_ReturnAuthRequiredIfAuthUserDenied(
  VARIANT_BOOL fReturnAuthRequiredIfAuthUserDenied );

Parameters

pfReturnAuthRequiredIfAuthUserDenied

Pointer to a Boolean variable that is set on return to VARIANT_TRUE if a Proxy Authentication Required message will be returned when a user is authenticated by the Web proxy but is denied access by the rules, or to VARIANT_FALSE if a Proxy Authentication Required message will not be returned when a user is authenticated by the Web proxy but is denied access by the rules.

fReturnAuthRequiredIfAuthUserDenied

Boolean value that indicates whether to return a Proxy Authentication Required message when a user is authenticated by the Web proxy but is denied access by the rules.

Return Values

Remarks

This property is read/write. Its default value is VARIANT_FALSE.

In the forward proxy scenario, when this property is set to VARIANT_TRUE, a user that is authenticated by the Web proxy but fails to pass the rules (for example, because they deny access to this user) receives HTTP error 407 (Proxy Authentication Required) and can try again using different credentials. If this property is set to VARIANT_FALSE (the default value), the user receives HTTP error 502 (Bad Gateway) with a resource denied error page and is not prompted again for credentials when the Web proxy denies access for a request. In the reverse proxy scenario, the corresponding HTTP errors are 401 (Unauthorized: Logon Failed) and 403 (Forbidden: Execute Access Forbidden).

This property cannot be accessed through ISA Server Management.

The ReturnAuthRequiredIfAuthUserDenied property gets or sets a Boolean value that indicates whether to return a Proxy Authentication Required message when a user is authenticated by the ISA Server Web proxy but is denied access by the rules. By default, an access denied message is returned, and the user is not given the option of authenticating with different credentials.

Property ReturnAuthRequiredIfAuthUserDenied As Boolean

Property Value

Remarks

This property is read/write. Its default value is False.

In the forward proxy scenario, when this property is set to True, a user that is authenticated by the Web proxy but fails to pass the rules (for example, because they deny access to this user) receives HTTP error 407 (Proxy Authentication Required) and can try again using different credentials. If this property is set to False (the default value), the user receives HTTP error 502 (Bad Gateway) with a resource denied error page and is not prompted again for credentials when the Web proxy denies access for a request. In the reverse proxy scenario, the corresponding HTTP errors are 401 (Unauthorized: Logon Failed) and 403 (Forbidden: Execute Access Forbidden).

This property cannot be accessed through ISA Server Management.

Example Code

 
'Define the constants needed
Const fpcInternalNetwork = 4

Main(WScript.Arguments)

Sub Main(args)

    Dim reqValue    ' A string
    Dim newValue    ' A Boolean
    
    If(1 <> args.Count) Then
        Usage()
    End If

    reqValue = UCase(args(0))
    If (reqValue = "TRUE" Or reqValue = "FALSE") Then
        If reqValue = "TRUE" Then
            newValue = True
        Else
            newValue = False
        End If
        SetNetworkReturnAuthReq newValue
    Else
        Usage()
    End If
End Sub

Sub SetNetworkReturnAuthReq(newValue)

    ' Declare the objects needed.
    Dim root          ' The FPCLib.FPC root object
    Dim isaArray      ' An FPCArray object
    Dim networks      ' An FPCNetworks collection
    Dim network       ' An FPCNetwork object
    Dim currentValue  ' A Boolean

    ' Create the root object.
    Set root = CreateObject("FPC.Root")

    ' Get references to the array object 
    ' and the networks collection.
    Set isaArray = root.GetContainingArray()
    Set networks = isaArray.NetworkConfiguration.Networks

    ' Find the Internal network and set the property
    ' for it.
    For Each network In networks
        If network.NetworkType = fpcInternalNetwork Then
            currentValue = network.WebListenerProperties.ReturnAuthRequiredIfAuthUserDenied
            WScript.Echo "Current value: " & currentValue
            If newValue <> currentValue Then
                network.WebListenerProperties.ReturnAuthRequiredIfAuthUserDenied = newValue
                WScript.Echo "New value: " _
                    & network.WebListenerProperties.ReturnAuthRequiredIfAuthUserDenied
                network.Save
                WScript.Echo "Done!" 
            End If
        End If
    Next
End Sub

Sub Usage()
    WScript.Echo "Usage:" & VbCrLf _
        & "  " & WScript.ScriptName & " {True | False}"
    WScript.Quit
End Sub