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# 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.
"""Main entry point into the Revoke service."""
import abc
import datetime
from oslo_config import cfg
from oslo_log import versionutils
from oslo_utils import timeutils
import six
from keystone.common import cache
from keystone.common import dependency
from keystone.common import extension
from keystone.common import manager
from keystone import exception
from keystone.i18n import _
from keystone.models import revoke_model
from keystone import notifications
CONF = cfg.CONF
EXTENSION_DATA = {
'name': 'OpenStack Revoke API',
'namespace': 'http://docs.openstack.org/identity/api/ext/'
'OS-REVOKE/v1.0',
'alias': 'OS-REVOKE',
'updated': '2014-02-24T20:51:0-00:00',
'description': 'OpenStack revoked token reporting mechanism.',
'links': [
{
'rel': 'describedby',
'type': 'text/html',
'href': 'http://specs.openstack.org/openstack/keystone-specs/api/'
'v3/identity-api-v3-os-revoke-ext.html',
}
]}
extension.register_admin_extension(EXTENSION_DATA['alias'], EXTENSION_DATA)
extension.register_public_extension(EXTENSION_DATA['alias'], EXTENSION_DATA)
MEMOIZE = cache.get_memoization_decorator(group='revoke')
def revoked_before_cutoff_time():
expire_delta = datetime.timedelta(
seconds=CONF.token.expiration + CONF.revoke.expiration_buffer)
oldest = timeutils.utcnow() - expire_delta
return oldest
@dependency.provider('revoke_api')
class Manager(manager.Manager):
"""Default pivot point for the Revoke backend.
Performs common logic for recording revocations.
See :mod:`keystone.common.manager.Manager` for more details on
how this dynamically calls the backend.
"""
driver_namespace = 'keystone.revoke'
def __init__(self):
super(Manager, self).__init__(CONF.revoke.driver)
self._register_listeners()
self.model = revoke_model
def _user_callback(self, service, resource_type, operation,
payload):
self.revoke_by_user(payload['resource_info'])
def _role_callback(self, service, resource_type, operation,
payload):
self.revoke(
revoke_model.RevokeEvent(role_id=payload['resource_info']))
def _project_callback(self, service, resource_type, operation,
payload):
self.revoke(
revoke_model.RevokeEvent(project_id=payload['resource_info']))
def _domain_callback(self, service, resource_type, operation,
payload):
self.revoke(
revoke_model.RevokeEvent(domain_id=payload['resource_info']))
def _trust_callback(self, service, resource_type, operation,
payload):
self.revoke(
revoke_model.RevokeEvent(trust_id=payload['resource_info']))
def _consumer_callback(self, service, resource_type, operation,
payload):
self.revoke(
revoke_model.RevokeEvent(consumer_id=payload['resource_info']))
def _access_token_callback(self, service, resource_type, operation,
payload):
self.revoke(
revoke_model.RevokeEvent(access_token_id=payload['resource_info']))
def _role_assignment_callback(self, service, resource_type, operation,
payload):
info = payload['resource_info']
self.revoke_by_grant(role_id=info['role_id'], user_id=info['user_id'],
domain_id=info.get('domain_id'),
project_id=info.get('project_id'))
def _register_listeners(self):
callbacks = {
notifications.ACTIONS.deleted: [
['OS-TRUST:trust', self._trust_callback],
['OS-OAUTH1:consumer', self._consumer_callback],
['OS-OAUTH1:access_token', self._access_token_callback],
['role', self._role_callback],
['user', self._user_callback],
['project', self._project_callback],
['role_assignment', self._role_assignment_callback]
],
notifications.ACTIONS.disabled: [
['user', self._user_callback],
['project', self._project_callback],
['domain', self._domain_callback],
],
notifications.ACTIONS.internal: [
[notifications.INVALIDATE_USER_TOKEN_PERSISTENCE,
self._user_callback],
]
}
for event, cb_info in callbacks.items():
for resource_type, callback_fns in cb_info:
notifications.register_event_callback(event, resource_type,
callback_fns)
def revoke_by_user(self, user_id):
return self.revoke(revoke_model.RevokeEvent(user_id=user_id))
def _assert_not_domain_and_project_scoped(self, domain_id=None,
project_id=None):
if domain_id is not None and project_id is not None:
msg = _('The revoke call must not have both domain_id and '
'project_id. This is a bug in the Keystone server. The '
'current request is aborted.')
raise exception.UnexpectedError(exception=msg)
@versionutils.deprecated(as_of=versionutils.deprecated.JUNO,
remove_in=0)
def revoke_by_expiration(self, user_id, expires_at,
domain_id=None, project_id=None):
self._assert_not_domain_and_project_scoped(domain_id=domain_id,
project_id=project_id)
self.revoke(
revoke_model.RevokeEvent(user_id=user_id,
expires_at=expires_at,
domain_id=domain_id,
project_id=project_id))
def revoke_by_audit_id(self, audit_id):
self.revoke(revoke_model.RevokeEvent(audit_id=audit_id))
def revoke_by_audit_chain_id(self, audit_chain_id, project_id=None,
domain_id=None):
self._assert_not_domain_and_project_scoped(domain_id=domain_id,
project_id=project_id)
self.revoke(revoke_model.RevokeEvent(audit_chain_id=audit_chain_id,
domain_id=domain_id,
project_id=project_id))
def revoke_by_grant(self, role_id, user_id=None,
domain_id=None, project_id=None):
self.revoke(
revoke_model.RevokeEvent(user_id=user_id,
role_id=role_id,
domain_id=domain_id,
project_id=project_id))
def revoke_by_user_and_project(self, user_id, project_id):
self.revoke(
revoke_model.RevokeEvent(project_id=project_id, user_id=user_id))
def revoke_by_project_role_assignment(self, project_id, role_id):
self.revoke(revoke_model.RevokeEvent(project_id=project_id,
role_id=role_id))
def revoke_by_domain_role_assignment(self, domain_id, role_id):
self.revoke(revoke_model.RevokeEvent(domain_id=domain_id,
role_id=role_id))
@MEMOIZE
def _get_revoke_tree(self):
events = self.driver.list_events()
revoke_tree = revoke_model.RevokeTree(revoke_events=events)
return revoke_tree
def check_token(self, token_values):
"""Checks the values from a token against the revocation list
:param token_values: dictionary of values from a token, normalized for
differences between v2 and v3. The checked values
are a subset of the attributes of model.TokenEvent
:raises keystone.exception.TokenNotFound: If the token is invalid.
"""
if self._get_revoke_tree().is_revoked(token_values):
raise exception.TokenNotFound(_('Failed to validate token'))
def revoke(self, event):
self.driver.revoke(event)
self._get_revoke_tree.invalidate(self)
@six.add_metaclass(abc.ABCMeta)
class RevokeDriverV8(object):
"""Interface for recording and reporting revocation events."""
@abc.abstractmethod
def list_events(self, last_fetch=None):
"""return the revocation events, as a list of objects
:param last_fetch: Time of last fetch. Return all events newer.
:returns: A list of keystone.revoke.model.RevokeEvent
newer than `last_fetch.`
If no last_fetch is specified, returns all events
for tokens issued after the expiration cutoff.
"""
raise exception.NotImplemented() # pragma: no cover
@abc.abstractmethod
def revoke(self, event):
"""register a revocation event
:param event: An instance of
keystone.revoke.model.RevocationEvent
"""
raise exception.NotImplemented() # pragma: no cover
Driver = manager.create_legacy_driver(RevokeDriverV8)
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