77 lines
3.0 KiB
Python
77 lines
3.0 KiB
Python
# Copyright 2013 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.
|
|
|
|
from oslo.utils import timeutils
|
|
|
|
from keystone import auth
|
|
from keystone.common import dependency
|
|
from keystone.common import wsgi
|
|
from keystone import exception
|
|
from keystone.openstack.common import log
|
|
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
|
|
@dependency.requires('token_provider_api')
|
|
class Token(auth.AuthMethodHandler):
|
|
|
|
method = 'token'
|
|
|
|
def authenticate(self, context, auth_payload, user_context):
|
|
try:
|
|
if 'id' not in auth_payload:
|
|
raise exception.ValidationError(attribute='id',
|
|
target=self.method)
|
|
token_id = auth_payload['id']
|
|
response = self.token_provider_api.validate_token(token_id)
|
|
# For V3 tokens, the essential data is under the 'token' value.
|
|
# For V2, the comparable data was nested under 'access'.
|
|
token_ref = response.get('token', response.get('access'))
|
|
|
|
# Do not allow tokens used for delegation to
|
|
# create another token, or perform any changes of
|
|
# state in Keystone. To do so is to invite elevation of
|
|
# privilege attacks
|
|
if 'OS-TRUST:trust' in token_ref:
|
|
raise exception.Forbidden()
|
|
if 'trust' in token_ref:
|
|
raise exception.Forbidden()
|
|
if 'trust_id' in token_ref.get('metadata', {}):
|
|
raise exception.Forbidden()
|
|
if 'OS-OAUTH1' in token_ref:
|
|
raise exception.Forbidden()
|
|
|
|
wsgi.validate_token_bind(context, token_ref)
|
|
|
|
# New tokens are not allowed to extend the expiration
|
|
# time of an old token, otherwise, they could be extened
|
|
# forever. The expiration value was stored at different
|
|
# locations in v2 and v3 tokens.
|
|
expires_at = token_ref.get('expires_at')
|
|
if not expires_at:
|
|
expires_at = token_ref.get('expires')
|
|
if not expires_at:
|
|
expires_at = timeutils.normalize_time(
|
|
timeutils.parse_isotime(token_ref['token']['expires']))
|
|
|
|
user_context.setdefault('expires_at', expires_at)
|
|
user_context.setdefault('user_id', token_ref['user']['id'])
|
|
user_context['extras'].update(token_ref.get('extras', {}))
|
|
user_context['method_names'].extend(token_ref.get('methods', []))
|
|
|
|
except AssertionError as e:
|
|
LOG.error(e)
|
|
raise exception.Unauthorized(e)
|