5ae3e72c1f
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
57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
# Copyright 2011 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Base class(es) for WSGI Middleware."""
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import webob.dec
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class Middleware(object):
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"""Base WSGI middleware wrapper.
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These classes require an application to be initialized that will be called
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next. By default the middleware will simply call its wrapped app, or you
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can override __call__ to customize its behavior.
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"""
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@classmethod
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def factory(cls, global_conf, **local_conf):
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"""Factory method for paste.deploy."""
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return cls
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def __init__(self, application):
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self.application = application
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def process_request(self, req):
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"""Called on each request.
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If this returns None, the next application down the stack will be
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executed. If it returns a response then that response will be returned
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and execution will stop here.
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"""
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return None
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def process_response(self, response):
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"""Do whatever you'd like to the response."""
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return response
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@webob.dec.wsgify
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def __call__(self, req):
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response = self.process_request(req)
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if response:
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return response
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response = req.get_response(self.application)
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return self.process_response(response)
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