73 lines
2.1 KiB
Python
73 lines
2.1 KiB
Python
# -*- encoding: utf-8 -*-
|
|
#
|
|
# Copyright © 2012 New Dream Network, LLC (DreamHost)
|
|
#
|
|
# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
|
|
#
|
|
# 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 Lists (ACL's) control access the API server."""
|
|
|
|
from ceilometer.openstack.common import policy
|
|
from keystoneclient.middleware import auth_token
|
|
from oslo.config import cfg
|
|
|
|
|
|
_ENFORCER = None
|
|
OPT_GROUP_NAME = 'keystone_authtoken'
|
|
|
|
|
|
def register_opts(conf):
|
|
"""Register keystoneclient middleware options
|
|
"""
|
|
conf.register_opts(auth_token.opts,
|
|
group=OPT_GROUP_NAME)
|
|
auth_token.CONF = conf
|
|
|
|
|
|
register_opts(cfg.CONF)
|
|
|
|
|
|
def install(app, conf):
|
|
"""Install ACL check on application."""
|
|
return auth_token.AuthProtocol(app,
|
|
conf=dict(conf.get(OPT_GROUP_NAME)))
|
|
|
|
|
|
def get_limited_to(headers):
|
|
"""Return the user and project the request should be limited to.
|
|
|
|
:param headers: HTTP headers dictionary
|
|
:return: A tuple of (user, project), set to None if there's no limit on
|
|
one of these.
|
|
|
|
"""
|
|
global _ENFORCER
|
|
if not _ENFORCER:
|
|
_ENFORCER = policy.Enforcer()
|
|
if not _ENFORCER.enforce('context_is_admin',
|
|
{},
|
|
{'roles': headers.get('X-Roles', "").split(",")}):
|
|
return headers.get('X-User-Id'), headers.get('X-Project-Id')
|
|
return None, None
|
|
|
|
|
|
def get_limited_to_project(headers):
|
|
"""Return the project the request should be limited to.
|
|
|
|
:param headers: HTTP headers dictionary
|
|
:return: A project, or None if there's no limit on it.
|
|
|
|
"""
|
|
return get_limited_to(headers)[1]
|