vmware-nsx/neutron/openstack/common/middleware/catch_errors.py
Akihiro Motoki 5ae3e72c1f Return request-id in API response
Import RequestIdMiddleware from oslo which ensures to request-id
in API response. CatchErrorsMiddleware is also imported to ensure
all internal exceptions are caught outermost.
api-paste.ini is updated to use them.

KeystonAuthContext middleware is updated so that it uses
request-id generated by RequestIdMiddleware.

Add middleware to openstack.conf and import all modules
under middleware directory from oslo.

DocImpact UpgradeImpact
This patch adds new WSGI middlewares "request_id" and "catch_errors".
They needs to be added to api-paste.ini when upgrading.

Change-Id: Icf01b7de697ef50bef53212da2cf520d1ff78b88
Closes-Bug: #1239923
2014-02-10 04:58:38 +09:00

44 lines
1.4 KiB
Python

# Copyright (c) 2013 NEC Corporation
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""Middleware that provides high-level error handling.
It catches all exceptions from subsequent applications in WSGI pipeline
to hide internal errors from API response.
"""
import webob.dec
import webob.exc
from neutron.openstack.common.gettextutils import _ # noqa
from neutron.openstack.common import log as logging
from neutron.openstack.common.middleware import base
LOG = logging.getLogger(__name__)
class CatchErrorsMiddleware(base.Middleware):
@webob.dec.wsgify
def __call__(self, req):
try:
response = req.get_response(self.application)
except Exception:
LOG.exception(_('An error occurred during '
'processing the request: %s'))
response = webob.exc.HTTPInternalServerError()
return response