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# Copyright 2012 OpenStack Foundation
#
# 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.
import abc
import datetime
from oslo_utils import timeutils
import keystone.conf
from keystone import exception
CONF = keystone.conf.CONF
def revoked_before_cutoff_time():
expire_delta = datetime.timedelta(
seconds=CONF.token.expiration + CONF.revoke.expiration_buffer)
oldest = timeutils.utcnow() - expire_delta
return oldest
class RevokeDriverBase(object, metaclass=abc.ABCMeta):
"""Interface for recording and reporting revocation events."""
@abc.abstractmethod
def list_events(self, last_fetch=None, token=None):
"""return the revocation events, as a list of objects.
:param last_fetch: Time of last fetch. Return all events newer.
:param token: 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
: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
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