Garito wrote at 2006-11-9 03:07 +0100:
...
What you see is an authentication weekness with "__bobo_traverse__":
Zope's security machinery requires acquisition wrappers to work reliably.
When "__bobo_traverse__" returns a non acquisition wrapped object without public security declarations, then the normal security check would not help.
Zope therefore tries to check whether a standard 'getattr' would return the same object and accept it in this case. Otherwise, it will raise "Unauthorized" with the intent that an unmotivated "Unauthorized" is better than giving access to some piece of information that should be protected.
In my view, the behaviour is buggy as "__bobo_traverse__" has no way to return a non-trivial elementary data type -- but almost surely, it will not be changed... ... Then: what solution did you think will be the best solution for my request?
You may try to return a wrapper that behaves the same way as the original object (by deriving from the respective type) but has "__roles__ = None" as additional attribute (which declares the object public). -- Dieter