[Zope] Acquisition / proxying object

[Peter Bengtsson]

This is maybe a naive suggestion but if Zope's TTW execution (e.g. 
Python Scripts) can't find a __roles__ on the object at hand doesn't 
that just mean that the class wasn't initialized with any security.


class LDAPProxy(Folder):
     ...

from Globals import InitializeClass
InitializeClass(LDAPProxy)

That should set the *__roles__ on all it's methods.


Joerg Baach wrote:
> Hi *,
> 
> I am trying to have a folderish object that acquires from a user object
> (ldapuserfolder). It should have its own properties and contents, but
> fall back to the ones of the ldap user.
> 
> I have created an object, extending Folder, and it behaves nicely in
> zopectl debug. When I try to access it through e.g. a python script  I
> get an:
> 
> Error Type: Unauthorized
> Error Value: Unable to find __roles__ in the container and the container
> is not wrapped. Access to 'dn' of test, acquired through (LDAPProxy at
> /testfolder/ldapproxy), denied.
> 
> I am sure its my lack of understanding of acquisition. I am trying to
> bascially put ldap user object 'on top' of the aquisition line (with the
> ldapproxy at the bottom), but obviously failing in doing so. Any ideas?
> 
> Cheers,
> 
>   Joerg
> 
> 
> 
> --------8< excerpt from code ---------------
> 
> class LDAPProxy(Folder):
> 
>     meta_type='LDAPProxy'
> 
>     def __init__(self, id, remoteid,title='',REQUEST=None):
>         self.id = id
>         self.title = title
>         self.remoteid = remoteid
> 
>     def __of__(self, parent):
>         if not hasattr(parent,'aq_base'):
>             return self
>         folder,id = self.remoteid.split(':')
>         acl = parent.restrictedTraverse(folder)
>         remote = acl.getUser(id)
>         return Folder.__of__(self,parent.__of__(remote))
> 
> ------- teststructure----------
> 
> /testfolder/
>            ldapproxy (LDAPProxy)
>            acl_users/
>            testscript (.py)
> 
> 
> --------8< testscript ---------------------
> return context.ldapproxy.dn
> 
> --------traceback--------------------------
> Traceback (most recent call last):
>   File "/home/joerg/zope/Zope-2.8.5/lib/python/ZPublisher/Publish.py",
> line 113, in publish
>     request, bind=1)
>   File "/home/joerg/zope/Zope-2.8.5/lib/python/ZPublisher/mapply.py",
> line 88, in mapply
>     if debug is not None: return debug(object,args,context)
>   File "/home/joerg/zope/Zope-2.8.5/lib/python/ZPublisher/Publish.py",
> line 40, in call_object
>     result=apply(object,args) # Type s<cr> to step into published object.
>   File
> "/home/joerg/zope/Zope-2.8.5/lib/python/Shared/DC/Scripts/Bindings.py",
> line 311, in __call__
>     return self._bindAndExec(args, kw, None)
>   File
> "/home/joerg/zope/Zope-2.8.5/lib/python/Shared/DC/Scripts/Bindings.py",
> line 348, in _bindAndExec
>     return self._exec(bound_data, args, kw)
>   File
> "/home/joerg/zope/Zope-2.8.5/lib/python/Products/PythonScripts/PythonScript.py",
> line 323, in _exec
>     result = f(*args, **kw)
>   File "Script (Python)", line 1, in testscript
>   File
> "/home/joerg/zope/Zope-2.8.5/lib/python/AccessControl/ImplPython.py",
> line 727, in guarded_getattr
>     aq_acquire(inst, name, aq_validate, validate)
>   File
> "/home/joerg/zope/Zope-2.8.5/lib/python/AccessControl/ImplPython.py",
> line 669, in aq_validate
>     return validate(inst, object, name, v)
>   File
> "/home/joerg/zope/Zope-2.8.5/lib/python/AccessControl/ImplPython.py",
> line 563, in validate
>     self._context)
>   File
> "/home/joerg/zope/Zope-2.8.5/lib/python/AccessControl/ImplPython.py",
> line 293, in validate
>     accessed, container, name, value, context)
>   File
> "/home/joerg/zope/Zope-2.8.5/lib/python/AccessControl/ImplPython.py",
> line 808, in raiseVerbose
>     raise Unauthorized(text)
> Unauthorized: Unable to find __roles__ in the container and the
> container is not wrapped.  Access to 'dn' of test, acquired through
> (LDAPProxy at /testfolder/ldapproxy), denied.
> 
> 
> 
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> 
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Peter Bengtsson,
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