[Zope-dev] restrictedTraverse

[Florent Guillaume]

Anybody has any light to shed on this ? Especially the second
paragraph...

Thanks,
Florent

Florent Guillaume  <fg@nuxeo.com> wrote:
> With an object path /A/B/C where C has a local role allowing a user to
> view C but where B disallows acquisition of the View permission, the
> publisher correctly allows the user to see C.
> 
> However restrictedTraverse('/A/B/C') fails ("You are not allowed to
> access B in this context"). This is because restrictedTraverse checks
> the security (using "validate") at *every* step, and obviously the
> user is not allowed to see B.  Is there a reason for this ? Why not
> simply validate only at the last step ?
> 
> I have the need to programatically access object protected in such a
> way. The workaround I'm going to use in my code for now is to call
> unrestrictedTraverse and validate() by hand the resulting object.  But
> I'm concerned that there may be a more profound security reason I'm
> missing.
-- 
Florent Guillaume, Nuxeo (Paris, France)
+33 1 40 33 79 87  http://nuxeo.com  mailto:fg@nuxeo.com