2baf7c49ad
The auth plugin from the keystoneclient-kerberos repository is copied to this package. It was in its own repository because it requires the requests-kerberos package and we want to minimize requirements in keystoneauth (or keystoneclient at the time the plugin was originally developed). Since we've got support for "extras" in setup.cfg in pip now this isn't an issue with the package anymore. Users of the kerberos plugin must install the extra packages using $ pip install keystoneauth['kerberos'] otherwise the plugin will fail to load. Closes-Bug: 1512741 Change-Id: Ia84bf559413e9bfd1a3faaceb417c2477bd10d5f
68 lines
2.3 KiB
Python
68 lines
2.3 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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"""Kerberos authentication plugins.
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.. warning::
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This module requires installation of an extra package (`requests_kerberos`)
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not installed by default. Without the extra package an import error will
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occur. The extra package can be installed using::
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$ pip install keystoneauth['kerberos']
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"""
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import requests_kerberos
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from keystoneauth1 import access
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from keystoneauth1.identity import v3
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from keystoneauth1.identity.v3 import federation
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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 MappedKerberos(federation.FederationBaseAuth):
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"""Authenticate using Kerberos via the keystone federation mechanisms.
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This uses the OS-FEDERATION extension to gain an unscoped token and then
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use the standard keystone auth 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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