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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 OpenStack LLC
#
# 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 copy
from keystone.common import kvs
from keystone.common import logging
from keystone import exception
from keystone.openstack.common import timeutils
from keystone import token
LOG = logging.getLogger(__name__)
class Token(kvs.Base, token.Driver):
"""kvs backend for tokens is deprecated.
Deprecated in Havana and will be removed in Icehouse, as this backend
is not production grade.
"""
def __init__(self, *args, **kw):
super(Token, self).__init__(*args, **kw)
LOG.warn(_("kvs token backend is DEPRECATED. Use "
"keystone.token.backends.sql or "
"keystone.token.backend.memcache instead."))
# Public interface
def get_token(self, token_id):
try:
ref = self.db.get('token-%s' % token_id)
except exception.NotFound:
raise exception.TokenNotFound(token_id=token_id)
now = timeutils.utcnow()
expiry = ref['expires']
if expiry is None:
raise exception.TokenNotFound(token_id=token_id)
if expiry > now:
return copy.deepcopy(ref)
else:
raise exception.TokenNotFound(token_id=token_id)
def create_token(self, token_id, data):
data_copy = copy.deepcopy(data)
data_copy['id'] = token_id
if not data_copy.get('expires'):
data_copy['expires'] = token.default_expire_time()
if not data_copy.get('user_id'):
data_copy['user_id'] = data_copy['user']['id']
self.db.set('token-%s' % token_id, data_copy)
return copy.deepcopy(data_copy)
def delete_token(self, token_id):
try:
token_ref = self.get_token(token_id)
self.db.delete('token-%s' % token_id)
self.db.set('revoked-token-%s' % token_id, token_ref)
except exception.NotFound:
raise exception.TokenNotFound(token_id=token_id)
def is_not_expired(self, now, ref):
return not ref.get('expires') and ref.get('expires') < now
def is_expired(self, now, ref):
return ref.get('expires') and ref.get('expires') < now
def trust_matches(self, trust_id, ref):
return ref.get('trust_id') and ref['trust_id'] == trust_id
def _list_tokens_for_trust(self, trust_id):
tokens = []
now = timeutils.utcnow()
for token, ref in self.db.items():
if not token.startswith('token-') or self.is_expired(now, ref):
continue
if self.trust_matches(trust_id, ref):
tokens.append(token.split('-', 1)[1])
return tokens
def _list_tokens_for_user(self, user_id, tenant_id=None):
def user_matches(user_id, ref):
return ref.get('user') and ref['user'].get('id') == user_id
def tenant_matches(tenant_id, ref):
return ((tenant_id is None) or
(ref.get('tenant') and
ref['tenant'].get('id') == tenant_id))
tokens = []
now = timeutils.utcnow()
for token, ref in self.db.items():
if not token.startswith('token-') or self.is_expired(now, ref):
continue
else:
if (user_matches(user_id, ref) and
tenant_matches(tenant_id, ref)):
tokens.append(token.split('-', 1)[1])
return tokens
def list_tokens(self, user_id, tenant_id=None, trust_id=None):
if trust_id:
return self._list_tokens_for_trust(trust_id)
else:
return self._list_tokens_for_user(user_id, tenant_id)
def list_revoked_tokens(self):
tokens = []
for token, token_ref in self.db.items():
if not token.startswith('revoked-token-'):
continue
record = {}
record['id'] = token_ref['id']
record['expires'] = token_ref['expires']
tokens.append(record)
return tokens
def flush_expired_tokens(self):
now = timeutils.utcnow()
for token, token_ref in self.db.items():
if self.is_expired(now, token_ref):
self.db.delete(token)
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