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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 datetime
import time
import uuid
import memcache
from keystone import exception
from keystone import test
from keystone.token.backends import memcache as token_memcache
import test_backend
class MemcacheClient(object):
"""Replicates a tiny subset of memcached client interface."""
def __init__(self, *args, **kwargs):
"""Ignores the passed in args."""
self.cache = {}
def check_key(self, key):
if not isinstance(key, str):
raise memcache.Client.MemcachedStringEncodingError()
def get(self, key):
"""Retrieves the value for a key or None."""
self.check_key(key)
obj = self.cache.get(key)
now = time.mktime(datetime.datetime.utcnow().utctimetuple())
if obj and (obj[1] == 0 or obj[1] > now):
return obj[0]
else:
raise exception.TokenNotFound(token_id=key)
def set(self, key, value, time=0):
"""Sets the value for a key."""
self.check_key(key)
self.cache[key] = (value, time)
return True
def delete(self, key):
self.check_key(key)
try:
del self.cache[key]
except KeyError:
#NOTE(bcwaldon): python-memcached always returns the same value
pass
class MemcacheToken(test.TestCase, test_backend.TokenTests):
def setUp(self):
super(MemcacheToken, self).setUp()
fake_client = MemcacheClient()
self.token_api = token_memcache.Token(client=fake_client)
def test_get_unicode(self):
token_id = unicode(uuid.uuid4().hex)
data = {'id': token_id, 'a': 'b'}
self.token_api.create_token(token_id, data)
self.token_api.get_token(token_id)
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