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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.
from __future__ import absolute_import
import copy
import memcache
from keystone.common import utils
from keystone import config
from keystone import exception
from keystone.openstack.common import jsonutils
from keystone import token
CONF = config.CONF
config.register_str('servers', group='memcache', default='localhost:11211')
class Token(token.Driver):
revocation_key = 'revocation-list'
def __init__(self, client=None):
self._memcache_client = client
@property
def client(self):
return self._memcache_client or self._get_memcache_client()
def _get_memcache_client(self):
memcache_servers = CONF.memcache.servers.split(',')
self._memcache_client = memcache.Client(memcache_servers, debug=0)
return self._memcache_client
def _prefix_token_id(self, token_id):
return 'token-%s' % token_id.encode('utf-8')
def _prefix_user_id(self, user_id):
return 'usertokens-%s' % user_id.encode('utf-8')
def get_token(self, token_id):
if token_id is None:
raise exception.TokenNotFound(token_id='')
ptk = self._prefix_token_id(token.unique_id(token_id))
token_ref = self.client.get(ptk)
if token_ref is None:
raise exception.TokenNotFound(token_id=token_id)
return token_ref
def create_token(self, token_id, data):
data_copy = copy.deepcopy(data)
ptk = self._prefix_token_id(token.unique_id(token_id))
if not data_copy.get('expires'):
data_copy['expires'] = token.default_expire_time()
71 if not data_copy.get('user_id'):
data_copy['user_id'] = data_copy['user']['id']
kwargs = {}
75 if data_copy['expires'] is not None:
expires_ts = utils.unixtime(data_copy['expires'])
kwargs['time'] = expires_ts
self.client.set(ptk, data_copy, **kwargs)
85 if 'id' in data['user']:
token_data = jsonutils.dumps(token_id)
user_id = data['user']['id']
user_key = self._prefix_user_id(user_id)
if not self.client.append(user_key, ',%s' % token_data):
82 if not self.client.add(user_key, token_data):
if not self.client.append(user_key, ',%s' % token_data):
msg = _('Unable to add token user list.')
raise exception.UnexpectedError(msg)
return copy.deepcopy(data_copy)
def _add_to_revocation_list(self, data):
data_json = jsonutils.dumps(data)
if not self.client.append(self.revocation_key, ',%s' % data_json):
91 if not self.client.add(self.revocation_key, data_json):
if not self.client.append(self.revocation_key,
',%s' % data_json):
msg = _('Unable to add token to revocation list.')
raise exception.UnexpectedError(msg)
def delete_token(self, token_id):
# Test for existence
data = self.get_token(token.unique_id(token_id))
ptk = self._prefix_token_id(token.unique_id(token_id))
result = self.client.delete(ptk)
self._add_to_revocation_list(data)
return result
def list_tokens(self, user_id, tenant_id=None, trust_id=None):
tokens = []
user_key = self._prefix_user_id(user_id)
user_record = self.client.get(user_key) or ""
token_list = jsonutils.loads('[%s]' % user_record)
for token_id in token_list:
ptk = self._prefix_token_id(token.unique_id(token_id))
token_ref = self.client.get(ptk)
if token_ref:
if tenant_id is not None:
tenant = token_ref.get('tenant')
if not tenant:
continue
if tenant.get('id') != tenant_id:
continue
if trust_id is not None:
trust = token_ref.get('trust_id')
122 if not trust:
continue
124 if trust != trust_id:
continue
tokens.append(token_id)
return tokens
def list_revoked_tokens(self):
list_json = self.client.get(self.revocation_key)
if list_json:
return jsonutils.loads('[%s]' % list_json)
return []
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