61 lines
1.7 KiB
Python
61 lines
1.7 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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"""Debug middleware"""
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from __future__ import print_function
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import sys
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import six
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import webob.dec
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from neutron.openstack.common.middleware import base
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class Debug(base.Middleware):
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"""Helper class that returns debug information.
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Can be inserted into any WSGI application chain to get information about
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the request and response.
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"""
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@webob.dec.wsgify
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def __call__(self, req):
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print(("*" * 40) + " REQUEST ENVIRON")
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for key, value in req.environ.items():
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print(key, "=", value)
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print()
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resp = req.get_response(self.application)
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print(("*" * 40) + " RESPONSE HEADERS")
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for (key, value) in six.iteritems(resp.headers):
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print(key, "=", value)
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print()
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resp.app_iter = self.print_generator(resp.app_iter)
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return resp
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@staticmethod
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def print_generator(app_iter):
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"""Prints the contents of a wrapper string iterator when iterated."""
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print(("*" * 40) + " BODY")
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for part in app_iter:
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sys.stdout.write(part)
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sys.stdout.flush()
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yield part
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print()
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