OpenStack Study: pki.py

**** CubicPower OpenStack Study ****

# Copyright 2013 OpenStack Foundation

#

# Licensed under the Apache License, Version 2.0 (the "License"); you may

# not use this file except in compliance with the License. You may obtain

# a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

# License for the specific language governing permissions and limitations

# under the License.

"""Keystone PKI Token Provider"""

import json

from keystoneclient.common import cms

from keystone.common import environment

from keystone import config

from keystone import exception

from keystone.openstack.common.gettextutils import _

from keystone.openstack.common import log

from keystone.token.providers import common

CONF = config.CONF

LOG = log.getLogger(__name__)

**** CubicPower OpenStack Study ****

class Provider(common.BaseProvider):

**** CubicPower OpenStack Study ****

    def _get_token_id(self, token_data):

        try:

            token_id = cms.cms_sign_token(json.dumps(token_data),

                                          CONF.signing.certfile,

                                          CONF.signing.keyfile)

            return token_id

        except environment.subprocess.CalledProcessError:

            LOG.exception(_('Unable to sign token'))

            raise exception.UnexpectedError(_(

                'Unable to sign token.'))