Trac error when unprivileged users access a ticket with children

[david.killick@…]

Our Trac is setup so that anonymous users have only TICKET_VIEW privilege. When they view tickets without children all renders fine, however, where the ticket has children they are greeted with the following Oops:

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Oops… Trac detected an internal error:

UnboundLocalError: local variable 'buttondiv' referenced before assignment

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Here's the How To Reproduce bit for the Trac exception page:

How to reproduce

While doing a GET operation on /ticket/3737, Trac issued an internal error. (please provide additional details here) Request parameters: {'id': u'3737'} User agent: Mozilla/5.0 (X11; U; Linux x86_64; en-GB; rv:1.9.1.16) Gecko/20110323 Iceweasel/3.5.16 (like Firefox/3.5.16)

System Information

System information not available

Enabled Plugins

Plugin information not available

Python Traceback

 Traceback (most recent call last): File "build/bdist.linux-x86_64/egg/trac/web/main.py", line 511, in _dispatch_request dispatcher.dispatch(req)
 File "build/bdist.linux-x86_64/egg/trac/web/main.py", line 258, in dispatch content_type)
 File "build/bdist.linux-x86_64/egg/trac/web/chrome.py", line 840, in render_template stream |= self._filter_stream(req, method, filename, stream, data)
 File "/usr/lib/python2.5/site-packages/Genshi-0.6-py2.5.egg/genshi/core.py", line 132, in __or__ return Stream(_ensure(function(self)), serializer=self.serializer) File "build/bdist.linux-x86_64/egg/trac/web/chrome.py", line 991, in inner data)
 File "build/bdist.linux-x86_64/egg/childtickets/childtickets.py", line 211, in filter_stream snippet.append(tag.div(tablediv, buttondiv)) UnboundLocalError: local variable 'buttondiv' referenced before assignment

The action that triggered the error was:

GET: /ticket/3737

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If the user then logs in, all works fine.

[Mark Ryan]

(In [10178]) Fixes #8744:

• Release 2.4.1 (trac 0.12)