Florent Guillaume wrote:
Florent Guillaume wrote:
I'm in the process of refactoring OFS to use new-style security
declarations (about time ;)), and I stumbled on something which may
or may not be a bug, I don't know, I'd like some else's opinion:
The class SimpleItem has the definition (it's been there since the
begining of time when SimpleItem was created):
__ac_permissions__=(('View', ()),)
The unusual thing here is () instead of ('',).
Hm I now realize that this may be there just to define the View
permission as available but that's all. But there's still a discrepancy
in the way SecurityInfo treats it.
Ok I got to the reasons for that, it all dates back to the origins of
SecurityInfo in December 2000 when it originally had methods that did
the work of both declareProtected and declareObjectProtected. I'll fix this.
Florent
Anyway I'm further in understanding securiy in Z2 than I've ever been :)
Florent
I think the intent here is that it be the object level protection,
equivalent to the modern declareObjectProtected('View').
Indeed, if the SimpleItem class had a
security = ClassSecurityInfo()
(even by itself without further security declaration), then
AccessControl/SecurityInfo, which has the code
# Empty names list sets access to the class itself, named ''
if not len(names):
names = ('',)
would actually turn the () into a ('',) and the rest of the end of
the security setup, in App/class_init.py, would set
SimpleItem.__roles__ = PermissionRole('View') and that would be it.
However SimpleItem does *not* have this ClassSecurityInfo, which
means that the code above is not called, and the final logic in
class_init.py does not turn an empty tuple into "protect the object".
It means that SimpleItem does not have an object level protection of
View (but the default which is that only Manager has access), which
is probably as well but not clear from the code.
What do you think I should do?
- fix to use View?
- fix to use nothing?
Florent
--
Florent Guillaume, Nuxeo (Paris, France) Director of R&D
+33 1 40 33 71 59 http://nuxeo.com [EMAIL PROTECTED]
_______________________________________________
Zope-CMF maillist - Zope-CMF@lists.zope.org
http://mail.zope.org/mailman/listinfo/zope-cmf
See http://collector.zope.org/CMF for bug reports and feature requests
