I saw the hint and thought that since I had not changed any Trac
plugins or the Trac config that the parameters were still okay as they
had been working.

I removed that permission policy reference and the site now comes up.
Next is to see that the removal did not break anything.

Thanks. That was a quick reply!


On Tue, Dec 30, 2014 at 11:39 AM, RjOllos <[email protected]> wrote:
> On Tuesday, December 30, 2014 2:29:11 AM UTC-8, Roger Oberholtzer wrote:
>>
>> I updated some stuff on the openSUSE 12.3 server running Trac and I
>> now get this when accessing the site:
>>
>> Configuration Error
>>
>> Cannot find implementation(s) of the IPermissionPolicy interface named
>> InternalTicketsPolicy. Please check that the Component is enabled or
>> update the option [trac] permission_policies in trac.ini.
>>
>> The trac.log file says:
>>
>> 2014-12-30 11:20:06,970 Trac[chrome] WARNING: Error with navigation
>> contributor HudsonTracPlugin
>> 2014-12-30 11:20:06,970 Trac[chrome] WARNING: Error with navigation
>> contributor DownloadsDownloads
>> 2014-12-30 11:20:07,437 Trac[chrome] WARNING: Error with navigation
>> contributor RPCWeb
>> 2014-12-30 11:20:07,437 Trac[chrome] WARNING: Error with navigation
>> contributor QueryModule
>> 2014-12-30 11:20:07,437 Trac[chrome] WARNING: Error with navigation
>> contributor TicketModule
>> 2014-12-30 11:20:07,437 Trac[chrome] WARNING: Error with navigation
>> contributor SearchModule
>> 2014-12-30 11:20:07,438 Trac[chrome] WARNING: Error with navigation
>> contributor WikiModule
>> 2014-12-30 11:20:07,438 Trac[chrome] WARNING: Error with navigation
>> contributor RoadmapModule
>> 2014-12-30 11:20:07,438 Trac[chrome] WARNING: Error with navigation
>> contributor ReleasesModule
>> 2014-12-30 11:20:07,439 Trac[chrome] WARNING: Error with navigation
>> contributor AdminModule
>> 2014-12-30 11:20:07,439 Trac[chrome] WARNING: Error with navigation
>> contributor ReportModule
>> 2014-12-30 11:20:07,439 Trac[chrome] WARNING: Error with navigation
>> contributor TimelineModule
>> 2014-12-30 11:20:07,500 Trac[chrome] WARNING: Error with navigation
>> contributor BrowserModule
>> 2014-12-30 11:20:07,501 Trac[chrome] WARNING: Error with navigation
>> contributor FullBlogModule
>> 2014-12-30 11:20:07,502 Trac[main] ERROR: Exception caught while
>> post-processing request:
>> Traceback (most recent call last):
>>   File "/usr/lib/python2.7/site-packages/trac/web/main.py", line 250,
>> in dispatch
>>     self._post_process_request(req)
>>   File "/usr/lib/python2.7/site-packages/trac/web/main.py", line 348,
>> in _post_process_request
>>     f.post_process_request(req, *(None,)*extra_arg_count)
>>   File
>> "/usr/lib/python2.7/site-packages/TracWatchlistPlugin-1.0.1-py2.7.egg/tracwatchlist/plugin.py",
>> line 674, in post_process_request
>>     self.realm_handler[realm].has_perm(realm, req.perm):
>>   File
>> "/usr/lib/python2.7/site-packages/TracWatchlistPlugin-1.0.1-py2.7.egg/tracwatchlist/api.py",
>> line 154, in has_perm
>>     return realm.upper() + '_VIEW' in perm
>>   File "/usr/lib/python2.7/site-packages/trac/perm.py", line 554, in
>> has_permission
>>     return self._has_permission(action, resource)
>>   File "/usr/lib/python2.7/site-packages/trac/perm.py", line 568, in
>> _has_permission
>>     check_permission(action, perm.username, resource, perm)
>>   File "/usr/lib/python2.7/site-packages/trac/perm.py", line 458, in
>> check_permission
>>     for policy in self.policies:
>>   File "/usr/lib/python2.7/site-packages/trac/config.py", line 779, in
>> __get__
>>     option=tag.tt("[%s] %s" % (self.section, self.name))))
>> ConfigurationError: Cannot find implementation(s) of the
>> <tt>IPermissionPolicy</tt> interface named
>> <tt>InternalTicketsPolicy</tt>. Please check that the Component is
>> enabled or update the option <tt>[trac] permission_policies</tt> in
>> trac.ini.
>> 2014-12-30 11:20:07,502 Trac[main] WARNING: [10.209.160.46]
>> HTTPInternalError: 500 Configuration Error (Cannot find
>> implementation(s) of the <tt>IPermissionPolicy</tt> interface named
>> <tt>InternalTicketsPolicy</tt>. Please check that the Component is
>> enabled or update the option <tt>[trac] permission_policies</tt> in
>> trac.ini.)
>>
>>
>>
>> There was no change to trac.ini. So I think the problem is elsewhere.
>> I see that Babel was updated to 1.3 and Trac to 1.0.2.
>
>
> Since Trac 1.0.2 any permission policies defined in the [trac]
> permission_policies section must have been loaded. This was done so that
> Trac will "fail closed". If a permission policy fails to load it could
> result in a security issue.
>
> You appear to have a policy named InternalTicketPolicy that is not active.
> This could be due to a plugin that you've removed without removing the
> policy from permission_policies, or the plugin could be failing to load.
> Note the hint that is provided in the error message:
>
> Cannot find implementation(s) of the IPermissionPolicy interface named
> InternalTicketsPolicy. Please check that the Component is enabled or
> update the option [trac] permission_policies in trac.ini.
>
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-- 
Roger Oberholtzer

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