RETIRED, Function as a Service for OpenStack
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# Copyright 2017 Catalyst IT Limited
#
# 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.
"""Access Control API server."""
from keystonemiddleware import auth_token
from oslo_config import cfg
from oslo_policy import policy
from qinling import exceptions as exc
_ENFORCER = None
def setup(app):
if cfg.CONF.pecan.auth_enable:
conf = dict(cfg.CONF.keystone_authtoken)
# Change auth decisions of requests to the app itself.
conf.update({'delay_auth_decision': True})
_ensure_enforcer_initialization()
return auth_token.AuthProtocol(app, conf)
else:
return app
def enforce(action, context, target=None, do_raise=True,
exc=exc.NotAllowedException):
"""Verifies that the action is valid on the target in this context.
:param action: String, representing the action to be checked.
This should be colon separated for clarity.
i.e. ``workflows:create``
:param context: Mistral context.
:param target: Dictionary, representing the object of the action.
For object creation, this should be a dictionary
representing the location of the object.
e.g. ``{'project_id': context.project_id}``
:param do_raise: if True (the default), raises specified exception.
:param exc: Exception to be raised if not authorized. Default is
mistral.exceptions.NotAllowedException.
:return: returns True if authorized and False if not authorized and
do_raise is False.
"""
target_obj = {
'project_id': context.project_id,
'user_id': context.user_id,
}
target_obj.update(target or {})
_ensure_enforcer_initialization()
return _ENFORCER.enforce(
action,
target_obj,
context.to_dict(),
do_raise=do_raise,
exc=exc
)
def _ensure_enforcer_initialization():
global _ENFORCER
if not _ENFORCER:
_ENFORCER = policy.Enforcer(cfg.CONF)
_ENFORCER.load_rules()