55 lines
1.8 KiB
Python
55 lines
1.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (c) 2012 OpenStack, LLC
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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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"""
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Request Body limiting middleware.
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"""
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import webob.dec
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import webob.exc
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from nova import flags
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from nova.openstack.common import cfg
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from nova.openstack.common import log as logging
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from nova import wsgi
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#default request size is 112k
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max_request_body_size_opt = cfg.IntOpt('osapi_max_request_body_size',
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default=114688,
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help='the maximum body size '
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'per each osapi request(bytes)')
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FLAGS = flags.FLAGS
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FLAGS.register_opt(max_request_body_size_opt)
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LOG = logging.getLogger(__name__)
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class RequestBodySizeLimiter(wsgi.Middleware):
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"""Add a 'nova.context' to WSGI environ."""
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def __init__(self, *args, **kwargs):
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super(RequestBodySizeLimiter, self).__init__(*args, **kwargs)
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@webob.dec.wsgify(RequestClass=wsgi.Request)
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def __call__(self, req):
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if (req.content_length > FLAGS.osapi_max_request_body_size
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or len(req.body) > FLAGS.osapi_max_request_body_size):
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msg = _("Request is too large.")
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raise webob.exc.HTTPBadRequest(explanation=msg)
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else:
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return self.application
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