[PEAK] peak.web bug - permission check for resource fails

[wayne at larsen.st]

When adding an error template to the resources directory, I encountered
the following exception.  It looks like permission.of expects a type,
where it is getting an instance.   I maybe should not use the word bug, as
it very well be something I'm doing wrong.

Thanks,
Wayne


Exception happened during processing of request from ('127.0.0.1', 3104)
Traceback (most recent call last):
  File "c:\Python23\lib\SocketServer.py", line 222, in handle_request
    self.process_request(request, client_address)
  File "c:\Python23\lib\SocketServer.py", line 241, in process_request
    self.finish_request(request, client_address)
  File "c:\Python23\lib\SocketServer.py", line 254, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "c:\Python23\lib\SocketServer.py", line 521, in __init__
    self.handle()
  File "c:\Python23\Lib\site-packages\peak\util\WSGIServer.py", line 135,
in handle
    self.server.get_service().runCGI(self.rfile,stdout,stderr,env)
  File "c:\Python23\Lib\site-packages\peak\web\publish.py", line 389, in
runCGI
    return self.publish(request) or 0
  File
"d:\src\python\Zope3.cvs\build\lib.win32-2.3\zope\publisher\publish.py",
line 146, in publish
    publication.handleException(
  File "c:\Python23\Lib\site-packages\peak\web\publish.py", line 214, in
handleException
    return handler.handleException(
  File "c:\Python23\Lib\site-packages\peak\web\errors.py", line 60, in
handleException
    result = ctx.contextFor('template').render()
  File "c:\Python23\lib\site-packages\peak\web\places.py", line 95, in
contextFor
    ob = self.traversable.traverseTo(name, self)
  File "c:\Python23\lib\site-packages\peak\web\places.py", line 248, in
traverseTo
    return super(Decorator,self).traverseTo(name, ctx)
  File "c:\Python23\lib\site-packages\peak\web\places.py", line 186, in
traverseTo
    result = interaction.allows(ob, name)
  File "c:\Python23\Lib\site-packages\peak\security\permission.py", line
279, in allows
    attempt = self.accessType(permissionNeeded, subject, name, user, self)
  File "c:\Python23\Lib\site-packages\peak\security\permission.py", line
183, in __init__
    self.permission = permission.of(klass)
  File "c:\Python23\Lib\site-packages\peak\security\permission.py", line
305, in of
    return self.__cache[protectedObjectType]
  File "c:\Python23\lib\weakref.py", line 170, in __getitem__
    return self.data[ref(key)]
TypeError: cannot create weak reference to 'classobj' object
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