9840721b51
A small tactical update to allow cinder to consider user_id when checking for admin. This is needed in the field until the larger changes around admin scoping are completed. Checking for role only is not sufficient in a multi-domain configuration. juno-backport-potential kilo-backport-potential closes-bug: 968696 Change-Id: I0cb99186bd833c4c32964490c4bc6da9ad42d320
94 lines
3.1 KiB
Python
94 lines
3.1 KiB
Python
# Copyright (c) 2011 OpenStack Foundation
|
|
# All Rights Reserved.
|
|
#
|
|
# 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.
|
|
|
|
"""Policy Engine For Cinder"""
|
|
|
|
|
|
from oslo_config import cfg
|
|
from oslo_policy import opts as policy_opts
|
|
from oslo_policy import policy
|
|
|
|
from cinder import exception
|
|
|
|
CONF = cfg.CONF
|
|
policy_opts.set_defaults(cfg.CONF, 'policy.json')
|
|
|
|
_ENFORCER = None
|
|
|
|
|
|
def init():
|
|
global _ENFORCER
|
|
if not _ENFORCER:
|
|
_ENFORCER = policy.Enforcer(CONF)
|
|
|
|
|
|
def enforce_action(context, action):
|
|
"""Checks that the action can be done by the given context.
|
|
|
|
Applies a check to ensure the context's project_id and user_id can be
|
|
applied to the given action using the policy enforcement api.
|
|
"""
|
|
|
|
return enforce(context, action, {'project_id': context.project_id,
|
|
'user_id': context.user_id})
|
|
|
|
|
|
def enforce(context, action, target):
|
|
"""Verifies that the action is valid on the target in this context.
|
|
|
|
:param context: cinder context
|
|
:param action: string representing the action to be checked
|
|
this should be colon separated for clarity.
|
|
i.e. ``compute:create_instance``,
|
|
``compute:attach_volume``,
|
|
``volume:attach_volume``
|
|
|
|
:param object: 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}``
|
|
|
|
:raises PolicyNotAuthorized: if verification fails.
|
|
|
|
"""
|
|
init()
|
|
|
|
return _ENFORCER.enforce(action, target, context.to_dict(),
|
|
do_raise=True,
|
|
exc=exception.PolicyNotAuthorized,
|
|
action=action)
|
|
|
|
|
|
def check_is_admin(roles, context=None):
|
|
"""Whether or not user is admin according to policy setting.
|
|
|
|
Can use roles or user_id from context to determine if user is admin.
|
|
In a multi-domain configuration, roles alone may not be sufficient.
|
|
"""
|
|
init()
|
|
|
|
# include project_id on target to avoid KeyError if context_is_admin
|
|
# policy definition is missing, and default admin_or_owner rule
|
|
# attempts to apply. Since our credentials dict does not include a
|
|
# project_id, this target can never match as a generic rule.
|
|
target = {'project_id': ''}
|
|
if context is None:
|
|
credentials = {'roles': roles}
|
|
else:
|
|
credentials = {'roles': context.roles,
|
|
'user_id': context.user_id
|
|
}
|
|
|
|
return _ENFORCER.enforce('context_is_admin', target, credentials)
|