Source code for glance.context
# Copyright 2011-2014 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.
from oslo_context import context
from glance.api import policy
[docs]class RequestContext(context.RequestContext):
"""Stores information about the security context.
Stores how the user accesses the system, as well as additional request
information.
"""
def __init__(self, owner_is_tenant=True, service_catalog=None,
policy_enforcer=None, **kwargs):
super(RequestContext, self).__init__(**kwargs)
self.owner_is_tenant = owner_is_tenant
self.service_catalog = service_catalog
self.policy_enforcer = policy_enforcer or policy.Enforcer()
if not self.is_admin:
self.is_admin = self.policy_enforcer.check_is_admin(self)
[docs] def to_dict(self):
d = super(RequestContext, self).to_dict()
d.update({
'roles': self.roles,
'service_catalog': self.service_catalog,
})
return d
[docs] def to_policy_values(self):
pdict = super(RequestContext, self).to_policy_values()
pdict['user'] = self.user
pdict['tenant'] = self.tenant
return pdict
@classmethod
[docs] def from_dict(cls, values):
return cls(**values)
@property
[docs] def owner(self):
"""Return the owner to correlate with an image."""
return self.tenant if self.owner_is_tenant else self.user
@property
[docs] def can_see_deleted(self):
"""Admins can see deleted by default"""
return self.show_deleted or self.is_admin
[docs]def get_admin_context(show_deleted=False):
"""Create an administrator context."""
return RequestContext(auth_token=None,
tenant=None,
is_admin=True,
show_deleted=show_deleted,
overwrite=False)