[Zope-PAS] Struggling with 'challenge' support.

[Lennart Regebro]

Sorry, I didn't real the whole mail:

Mark Hammond wrote:
> I need to do an NTLM dance - the authentication process will require my
> plugin to return a 404 twice, each time exchanging tokens with the client in
> headers.  I'm really not sure how my plugin is supposed to handle that.

Scribble on the Response headers and then raise Unauthorized should do it.