68 lines
2.3 KiB
Python
68 lines
2.3 KiB
Python
# Copyright 2013 OpenStack Foundation
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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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"""Keystone PKI Token Provider"""
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import subprocess # nosec : used to catch subprocess exceptions
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from keystoneclient.common import cms
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from oslo_config import cfg
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from oslo_log import log
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from oslo_log import versionutils
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from oslo_serialization import jsonutils
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from keystone.common import utils
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from keystone import exception
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from keystone.i18n import _, _LE
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from keystone.token.providers import common
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CONF = cfg.CONF
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LOG = log.getLogger(__name__)
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@versionutils.deprecated(
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as_of=versionutils.deprecated.MITAKA,
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what='the PKI token provider',
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in_favor_of='the Fernet or UUID token providers')
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class Provider(common.BaseProvider):
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def _get_token_id(self, token_data):
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try:
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# force conversion to a string as the keystone client cms code
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# produces unicode. This can be removed if the client returns
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# str()
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# TODO(ayoung): Make to a byte_str for Python3
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token_json = jsonutils.dumps(token_data, cls=utils.PKIEncoder)
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token_id = str(cms.cms_sign_token(token_json,
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CONF.signing.certfile,
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CONF.signing.keyfile))
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return token_id
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except subprocess.CalledProcessError:
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LOG.exception(_LE('Unable to sign token'))
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raise exception.UnexpectedError(_(
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'Unable to sign token.'))
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@property
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def _supports_bind_authentication(self):
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"""Return if the token provider supports bind authentication methods.
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:returns: True
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"""
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return True
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def needs_persistence(self):
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"""Should the token be written to a backend."""
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return True
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