Re: PAS CookieAuthHelper and insufficient privileges

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On 10/11/2010 08:21 PM, Laurence Rowe wrote:
> I'm currently implementing single sign on across Plone sites but have
> run into a bit of an issue with the CookieAuthHelper.
> 
> Unauthorized accesses are redirected to its login_path attribute even
> when a user is already logged in. Plone works around this with a
> require_login script that traverses to insufficient_privileges (rather
> than login_form) when the user is not anonymous.
> http://dev.plone.org/plone/browser/Plone/trunk/Products/CMFPlone/skins/plone_login/require_login.py
> 
> I'd like to avoid having two redirects (one to require_login and then
> one to the remote login page).
> 
> One option (as suggested in require_login.py) would be to have
> CookieAuthHelper traverse rather than redirect to the login_path so
> that sites could override the behaviour, though they would then
> presumably need to duplicate the functionality currently in
> CookieAuthHelper.unauthorized (which I must admit to only barely
> understanding...)
> http://zope3.pov.lt/trac/browser/Products.PluggableAuthService/trunk/Products/PluggableAuthService/plugins/CookieAuthHelper.py
> 
> Instead, it would seem to make sense to move this functionality login
> / insufficient privileges functionality into the CookieAuthHelp
> itself. I could add an insufficient_privs_path and redirect there
> instead of login_path when a user is already authorized.
> 
> Yet another option would be to let logged in unauthorized to percolate
> up and implement that page with an error view.
> 
> Any opinions? I'm leaning towards adding an insufficient_privs_path as
> it seems simplest and least invasive. (When not set it would just use
> login_path as normal).

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please keep them on [email protected]:

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Tres.
- -- 
===================================================================
Tres Seaver          +1 540-429-0999          [email protected]
Palladion Software   "Excellence by Design"    http://palladion.com
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