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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1258070

Title:
  Need general error handling in API paste pipeline

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  Neutron api paste pipeline needs a general error handling, though it is just a potential issue.
  If an error occurs in the pipeline before neutronapiapp_v2_0, a traceback will be returned in an API response.

  For example, i added a code which raises an exception [1] to
  NeutronKeystoneContext middleware,

  $ neutron net-list
  Traceback (most recent call last):
    File "/usr/local/lib/python2.7/dist-packages/eventlet/wsgi.py", line 389, in handle_one_response
      result = self.application(self.environ, start_response)
    File "/usr/lib/python2.7/dist-packages/paste/urlmap.py", line 203, in __call__
      return app(environ, start_response)
    File "/opt/stack/python-keystoneclient/keystoneclient/middleware/auth_token.py", line 581, in __call__
      return self.app(env, start_response)
    File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 130, in __call__
      resp = self.call_func(req, *args, **self.kwargs)
    File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 195, in call_func
      return self.func(req, *args, **kwargs)
    File "/opt/stack/neutron/neutron/auth.py", line 56, in __call__
      print xxxx
  NameError: global name 'xxxx' is not defined

  
  [1] 
  diff --git a/neutron/auth.py b/neutron/auth.py
  index 220bf3e..e9f700a 100644
  --- a/neutron/auth.py
  +++ b/neutron/auth.py
  @@ -53,6 +53,8 @@ class NeutronKeystoneContext(wsgi.Middleware):
           # Inject the context...
           req.environ['neutron.context'] = ctx

  +        print xxxx
  +
           return self.application

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