[Zope-dev] I want to fix App.Management.Tabs.manage_workspace

[Chris Withers]

Hi there,

App.Management.Tabs.manage_workspace sucks as I've described in
http://zope.org/Collectors/Zope/1286:

1. manage_workspace is only protected by the Authenticated role, and that is 
done directly, not even through a permission.

2. self.filtered_manage_roles then limits the options of what can be shown, 
which might end up being nothing. But, because the method is only protected by 
'Authenticated', no chance is given to specify other user credentials (say, from 
a user folder higher up in the tree) which might be able to see something.

3. There's a bare try/except which masks errors. From what I can see, it should 
ONLY catch IndexError's.

4. The "raise TypeError" could do with some explanation.

5. The Unauthorized could raise a more helpful message "You are not authorized 
to view an of this object's management itnerface"

What do people feel about the right way to solve this? 3,4 and 5 I'm comfortable 
with fixing, but I'm stumped as to what "the right thing" is to do on 1 and 2 
which combine to create a thorny problem.

The semantics I want are: "Show the 1st management tab the user is allowed to 
see, if they're not allowed to see anything, check if a user of the same name 
further up the userfolder tree can see anything"

Is that right? If so, how do I go about implementing it? Finally, what branches 
should I do this on?

cheers,

Chris

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