64 lines
2.2 KiB
Python
64 lines
2.2 KiB
Python
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# Copyright (c) 2015 Mirantis, Inc.
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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 base64
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from keystoneclient import exceptions
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from keystoneclient.v3 import client
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from oslo_config import cfg
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from oslo_log import log
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from webob import exc
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from murano.common.i18n import _
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from murano.common import wsgi
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CONF = cfg.CONF
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LOG = log.getLogger(__name__)
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class ExternalContextMiddleware(wsgi.Middleware):
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def get_keystone_token(self, user, password):
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keystone = client.Client(username=user,
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password=password,
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auth_url=CONF.cfapi.auth_url.replace(
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'v2.0', 'v3'))
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return keystone.auth_token
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def process_request(self, req):
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"""Get keystone token for external request
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This middleware is used for external requests. It get credentials from
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request and try to get keystone token for futher authorization.
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:param req: wsgi request object that will be given the context object
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"""
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credentials = base64.b64decode(
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req.headers['Authorization'].split(' ')[1])
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user, password = credentials.split(':', 2)
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try:
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req.headers['X-Auth-Token'] = self.get_keystone_token(user,
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password)
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except exceptions.Unauthorized:
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msg = _("Your credentials are wrong. Please try again")
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LOG.warning(msg)
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raise exc.HTTPUnauthorized(explanation=msg)
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@classmethod
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def factory(cls, global_conf, **local_conf):
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def filter(app):
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return cls(app)
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return filter
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