56 lines
2.1 KiB
Python
56 lines
2.1 KiB
Python
# 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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from keystoneauth1 import access
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from keystoneauth1.identity import v3
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import requests_kerberos
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def _requests_auth():
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# NOTE(jamielennox): request_kerberos.OPTIONAL allows the plugin to accept
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# unencrypted error messages where we can't verify the origin of the error
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# because we aren't authenticated.
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return requests_kerberos.HTTPKerberosAuth(
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mutual_authentication=requests_kerberos.OPTIONAL)
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class KerberosMethod(v3.AuthMethod):
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_method_parameters = []
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def get_auth_data(self, session, auth, headers, request_kwargs, **kwargs):
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# NOTE(jamielennox): request_kwargs is passed as a kwarg however it is
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# required and always present when called from keystoneclient.
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request_kwargs['requests_auth'] = _requests_auth()
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return 'kerberos', {}
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class Kerberos(v3.AuthConstructor):
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_auth_method_class = KerberosMethod
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class FederatedKerberos(v3.FederationBaseAuth):
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"""Authenticate using Kerberos via the keystone federation mechanisms.
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This is not technically federation. However, federation is the term which
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keystone uses for all mapped authentication. This uses the OS-FEDERATION
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extension to gain an unscoped token and then use the standard keystone auth
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process to scope that to any given project.
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"""
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def get_unscoped_auth_ref(self, session, **kwargs):
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resp = session.get(self.federated_token_url,
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requests_auth=_requests_auth(),
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authenticated=False)
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return access.create(body=resp.json(), resp=resp)
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