51 lines
1.7 KiB
Python
51 lines
1.7 KiB
Python
# Copyright 2018 FUJITSU LIMITED
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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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import falcon
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from oslo_log import log
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LOG = log.getLogger(__name__)
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def validate_content_type(req, allowed):
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"""Validates content type.
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Method validates request against correct
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content type.
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If content-type cannot be established (i.e. header is missing),
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:py:class:`falcon.HTTPMissingHeader` is thrown.
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If content-type is not **application/json** or **text/plain**,
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:py:class:`falcon.HTTPUnsupportedMediaType` is thrown.
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:param falcon.Request req: current request
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:param iterable allowed: allowed content type
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:exception: :py:class:`falcon.HTTPMissingHeader`
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:exception: :py:class:`falcon.HTTPUnsupportedMediaType`
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"""
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content_type = req.content_type
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LOG.debug('Content-Type is %s', content_type)
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if content_type is None or len(content_type) == 0:
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raise falcon.HTTPMissingHeader('Content-Type')
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if content_type not in allowed:
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sup_types = ', '.join(allowed)
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details = ('Only [%s] are accepted as logs representations'
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% str(sup_types))
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raise falcon.HTTPUnsupportedMediaType(description=details)
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