vmware-nsx/quantum/context.py
gongysh aaf0fef1ca Use openstack common log to do logging.
Bug #1073194

We use openstack common log to do logging. At the same time, we will use
quantum logger as our top logger, so that all sub loggers will be set
according to quantum.conf

Change-Id: I5adf72e6031ad437e05c3521864a83757b3e7887
2012-11-01 10:09:57 +08:00

116 lines
3.8 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 OpenStack LLC.
# 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 quantum.db import api as db_api
from quantum.openstack.common import context as common_context
from quantum.openstack.common import log as logging
LOG = logging.getLogger(__name__)
class Context(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, **kwargs):
"""
: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') % str(kwargs))
super(Context, self).__init__(user=user_id, tenant=tenant_id,
is_admin=is_admin)
self.user_id = user_id
self.tenant_id = tenant_id
self.roles = roles or []
if self.is_admin is None:
self.is_admin = 'admin' in [x.lower() for x in self.roles]
elif self.is_admin and 'admin' not in [x.lower() for x in self.roles]:
self.roles.append('admin')
self.read_deleted = read_deleted
if not timestamp:
timestamp = datetime.utcnow()
self.timestamp = timestamp
self._session = None
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)
@property
def session(self):
if self._session is None:
self._session = db_api.get_session()
return self._session
def to_dict(self):
return {'user_id': self.user_id,
'tenant_id': self.tenant_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
def get_admin_context(read_deleted="no"):
return Context(user_id=None,
tenant_id=None,
is_admin=True,
read_deleted=read_deleted)