Source code for keystone.receipt.providers.fernet.core

# Copyright 2018 Catalyst Cloud Ltd
# 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
# 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 os

from keystone.common import utils as ks_utils
import keystone.conf
from keystone import exception
from keystone.i18n import _
from keystone.receipt.providers import base
from keystone.receipt import receipt_formatters as tf

CONF = keystone.conf.CONF

[docs] class Provider(base.Provider): def __init__(self, *args, **kwargs): super(Provider, self).__init__(*args, **kwargs) # NOTE(lbragstad): We add these checks here because if the fernet # provider is going to be used and either the `key_repository` is empty # or doesn't exist we should fail, hard. It doesn't make sense to start # keystone and just 500 because we can't do anything with an empty or # non-existant key repository. if not os.path.exists(CONF.fernet_receipts.key_repository): subs = {'key_repo': CONF.fernet_receipts.key_repository} raise SystemExit(_('%(key_repo)s does not exist') % subs) if not os.listdir(CONF.fernet_receipts.key_repository): subs = {'key_repo': CONF.fernet_receipts.key_repository} raise SystemExit(_('%(key_repo)s does not contain keys, use ' 'keystone-manage fernet_setup to create ' 'Fernet keys.') % subs) self.receipt_formatter = tf.ReceiptFormatter()
[docs] def validate_receipt(self, receipt_id): try: return self.receipt_formatter.validate_receipt(receipt_id) except exception.ValidationError: raise exception.ReceiptNotFound(receipt_id=receipt_id)
[docs] def generate_id_and_issued_at(self, receipt): receipt_id = self.receipt_formatter.create_receipt( receipt.user_id, receipt.methods, receipt.expires_at, ) creation_datetime_obj = self.receipt_formatter.creation_time( receipt_id) issued_at = ks_utils.isotime( at=creation_datetime_obj, subsecond=True ) return receipt_id, issued_at