150 lines
4.7 KiB
Python
150 lines
4.7 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2012 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.
|
|
|
|
"""Context: context for security/db session."""
|
|
|
|
import copy
|
|
|
|
from datetime import datetime
|
|
|
|
from neutron.db import api as db_api
|
|
from neutron.openstack.common import context as common_context
|
|
from neutron.openstack.common import log as logging
|
|
from neutron import policy
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class ContextBase(common_context.RequestContext):
|
|
"""Security context and request information.
|
|
|
|
Represents the user taking a given action within the system.
|
|
|
|
"""
|
|
|
|
def __init__(self, user_id, tenant_id, is_admin=None, read_deleted="no",
|
|
roles=None, timestamp=None, load_admin_roles=True, **kwargs):
|
|
"""Object initialization.
|
|
|
|
:param read_deleted: 'no' indicates deleted records are hidden, 'yes'
|
|
indicates deleted records are visible, 'only' indicates that
|
|
*only* deleted records are visible.
|
|
"""
|
|
if kwargs:
|
|
LOG.warn(_('Arguments dropped when creating '
|
|
'context: %s'), kwargs)
|
|
super(ContextBase, self).__init__(user=user_id, tenant=tenant_id,
|
|
is_admin=is_admin)
|
|
self.read_deleted = read_deleted
|
|
if not timestamp:
|
|
timestamp = datetime.utcnow()
|
|
self.timestamp = timestamp
|
|
self._session = None
|
|
self.roles = roles or []
|
|
if self.is_admin is None:
|
|
self.is_admin = policy.check_is_admin(self)
|
|
elif self.is_admin and load_admin_roles:
|
|
# Ensure context is populated with admin roles
|
|
admin_roles = policy.get_admin_roles()
|
|
if admin_roles:
|
|
self.roles = list(set(self.roles) | set(admin_roles))
|
|
|
|
@property
|
|
def project_id(self):
|
|
return self.tenant
|
|
|
|
@property
|
|
def tenant_id(self):
|
|
return self.tenant
|
|
|
|
@tenant_id.setter
|
|
def tenant_id(self, tenant_id):
|
|
self.tenant = tenant_id
|
|
|
|
@property
|
|
def user_id(self):
|
|
return self.user
|
|
|
|
@user_id.setter
|
|
def user_id(self, user_id):
|
|
self.user = user_id
|
|
|
|
def _get_read_deleted(self):
|
|
return self._read_deleted
|
|
|
|
def _set_read_deleted(self, read_deleted):
|
|
if read_deleted not in ('no', 'yes', 'only'):
|
|
raise ValueError(_("read_deleted can only be one of 'no', "
|
|
"'yes' or 'only', not %r") % read_deleted)
|
|
self._read_deleted = read_deleted
|
|
|
|
def _del_read_deleted(self):
|
|
del self._read_deleted
|
|
|
|
read_deleted = property(_get_read_deleted, _set_read_deleted,
|
|
_del_read_deleted)
|
|
|
|
def to_dict(self):
|
|
return {'user_id': self.user_id,
|
|
'tenant_id': self.tenant_id,
|
|
'project_id': self.project_id,
|
|
'is_admin': self.is_admin,
|
|
'read_deleted': self.read_deleted,
|
|
'roles': self.roles,
|
|
'timestamp': str(self.timestamp)}
|
|
|
|
@classmethod
|
|
def from_dict(cls, values):
|
|
return cls(**values)
|
|
|
|
def elevated(self, read_deleted=None):
|
|
"""Return a version of this context with admin flag set."""
|
|
context = copy.copy(self)
|
|
context.is_admin = True
|
|
|
|
if 'admin' not in [x.lower() for x in context.roles]:
|
|
context.roles.append('admin')
|
|
|
|
if read_deleted is not None:
|
|
context.read_deleted = read_deleted
|
|
|
|
return context
|
|
|
|
|
|
class Context(ContextBase):
|
|
@property
|
|
def session(self):
|
|
if self._session is None:
|
|
self._session = db_api.get_session()
|
|
return self._session
|
|
|
|
|
|
def get_admin_context(read_deleted="no", load_admin_roles=True):
|
|
return Context(user_id=None,
|
|
tenant_id=None,
|
|
is_admin=True,
|
|
read_deleted=read_deleted,
|
|
load_admin_roles=load_admin_roles)
|
|
|
|
|
|
def get_admin_context_without_session(read_deleted="no"):
|
|
return ContextBase(user_id=None,
|
|
tenant_id=None,
|
|
is_admin=True,
|
|
read_deleted=read_deleted)
|