[Zope] Newbie needs help - Zope 2.6.1 corrupting user objects?

[Dieter Maurer]

John Pedersen wrote at 2003-7-23 14:44 -0700:
 > ...
 > I've got about a hundred site members and I've had three instances now where
 > for some as yet undetermined reason, something in a user's account becomes
 > corrupted and they can no longer log in.  When this happens, each time the
 > user goes to log in, a stack trace is created.  Apparently this happens
 > after the user password is  compared to what Zope knows, because changing
 > the user password through the management interface will instead cause the
 > expected password failure page to be rendered.
 > ...
 > RuntimeError
 > ...
 >    * Module Products.PageTemplates.PageTemplate, line 95, in pt_render
 >      <FSPageTemplate at /Plone/folder_listing used for /Plone/Members/lvoss/Favorites>
 > ...
 >     * Module Products.PageTemplates.TALES, line 217, in evaluate
 >       Line 184, Column 24
 >       Expression: standard:'folder'
 > ...
 >    * Module Products.PageTemplates.PageTemplate, line 95, in pt_render
 >      <FSPageTemplate at /Plone/folder_listing used for /Plone/Members/lvoss/Favorites>
 > ...
 >     * Module Products.PageTemplates.TALES, line 217, in evaluate
 >       Line 184, Column 24
 >       Expression: standard:'folder'
 > ...
 > 
 > RuntimeError: maximum recursion depth exceeded (Also, an error occurred while attempting to render the standard error message.)

This is not a corrupted user information. It's a standard
endless recursion broken by Python's "maximal recursion depth".

Somehow, the evaluation of "folder" in "folder_listing" for
"/Plone/Members/lvoss/Favorites" results in calling itself.
Look at ".../lvoss/Favorites". It probably contains
an object with a dangerous id, maybe "folder" or "folder_listing".

If not obvious, tell us what you see there (after you asked
user "lvoss" for permission).


Dieter