[Twisted-Python] PB auth with LDAP

[Jean-Paul Calderone]

On Mon, 04 Sep 2006 11:02:57 -0700, Marvin McNett <mmcnett at cs.ucsd.edu> wrote:
>Hi,
>
> [snip]
>
>from twisted.cred import credentials
>from twisted.spread.pb import *"
>
>then overriding the _PortalRoot, _PortalWrapper, and _PortalAuthChallenger 
>classes, and registering the alternate adapter. However, the 
>"registerAdapter(_PortalRoot, Portal, IPBRoot)" comes back to bite me with:
>
>   exceptions.ValueError: an adapter (twisted.spread.pb._PortalRoot) was 
>already registered.
>
>unless I comment it out in the actual twisted.spread.pb.py file.  Is there a 
>way to unregister an adapter?  I'm sure there's a better way of doing this 
>since I've seen mention of writing alternate login sequences, but I haven't 
>been smart enough to figure it out.  Any help would be appreciated.

Instead of registering another adapter, instantiate your _PortalRoot class
directly and pass that to PBServerFactory.

Jean-Paul