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# Copyright 2010 OpenStack LLC.
# All Rights Reserved.
#
#    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 json

import stubout
import webob

from nova import flags
from nova import test
from nova import utils
from nova.api.openstack import users
from nova.auth.manager import User, Project
from nova.tests.api.openstack import fakes


FLAGS = flags.FLAGS
FLAGS.verbose = True


def fake_init(self):
    self.manager = fakes.FakeAuthManager()


def fake_admin_check(self, req):
    return True


class UsersTest(test.TestCase):
    def setUp(self):
        super(UsersTest, self).setUp()
        self.stubs = stubout.StubOutForTesting()
        self.stubs.Set(users.Controller, '__init__',
                       fake_init)
        self.stubs.Set(users.Controller, '_check_admin',
                       fake_admin_check)
        fakes.FakeAuthManager.clear_fakes()
        fakes.FakeAuthManager.projects = dict(testacct=Project('testacct',
                                                               'testacct',
                                                               'id1',
                                                               'test',
                                                               []))
        fakes.FakeAuthDatabase.data = {}
        fakes.stub_out_networking(self.stubs)
        fakes.stub_out_rate_limiting(self.stubs)
        fakes.stub_out_auth(self.stubs)

        self.allow_admin = FLAGS.allow_admin_api
        FLAGS.allow_admin_api = True
        fakemgr = fakes.FakeAuthManager()
        fakemgr.add_user(User('id1', 'guy1', 'acc1', 'secret1', False))
        fakemgr.add_user(User('id2', 'guy2', 'acc2', 'secret2', True))

    def tearDown(self):
        self.stubs.UnsetAll()
        FLAGS.allow_admin_api = self.allow_admin
        super(UsersTest, self).tearDown()

    def test_get_user_list(self):
        req = webob.Request.blank('/v1.0/users')
        res = req.get_response(fakes.wsgi_app())
        res_dict = json.loads(res.body)

        self.assertEqual(res.status_int, 200)
        self.assertEqual(len(res_dict['users']), 2)

    def test_get_user_by_id(self):
        req = webob.Request.blank('/v1.0/users/id2')
        res = req.get_response(fakes.wsgi_app())
        res_dict = json.loads(res.body)

        self.assertEqual(res_dict['user']['id'], 'id2')
        self.assertEqual(res_dict['user']['name'], 'guy2')
        self.assertEqual(res_dict['user']['secret'], 'secret2')
        self.assertEqual(res_dict['user']['admin'], True)
        self.assertEqual(res.status_int, 200)

    def test_user_delete(self):
        # Check the user exists
        req = webob.Request.blank('/v1.0/users/id1')
        res = req.get_response(fakes.wsgi_app())
        res_dict = json.loads(res.body)

        self.assertEqual(res_dict['user']['id'], 'id1')
        self.assertEqual(res.status_int, 200)

        # Delete the user
        req = webob.Request.blank('/v1.0/users/id1')
        req.method = 'DELETE'
        res = req.get_response(fakes.wsgi_app())
        self.assertTrue('id1' not in [u.id for u in
                        fakes.FakeAuthManager.auth_data])
        self.assertEqual(res.status_int, 200)

        # Check the user is not returned (and returns 404)
        req = webob.Request.blank('/v1.0/users/id1')
        res = req.get_response(fakes.wsgi_app())
        res_dict = json.loads(res.body)
        self.assertEqual(res.status_int, 404)

    def test_user_create(self):
        secret = utils.generate_password()
        body = dict(user=dict(name='test_guy',
                              access='acc3',
                              secret=secret,
                              admin=True))
        req = webob.Request.blank('/v1.0/users')
        req.headers["Content-Type"] = "application/json"
        req.method = 'POST'
        req.body = json.dumps(body)

        res = req.get_response(fakes.wsgi_app())
        res_dict = json.loads(res.body)

        self.assertEqual(res.status_int, 200)

        # NOTE(justinsb): This is a questionable assertion in general
        # fake sets id=name, but others might not...
        self.assertEqual(res_dict['user']['id'], 'test_guy')

        self.assertEqual(res_dict['user']['name'], 'test_guy')
        self.assertEqual(res_dict['user']['access'], 'acc3')
        self.assertEqual(res_dict['user']['secret'], secret)
        self.assertEqual(res_dict['user']['admin'], True)
        self.assertTrue('test_guy' in [u.id for u in
                        fakes.FakeAuthManager.auth_data])
        self.assertEqual(len(fakes.FakeAuthManager.auth_data), 3)

    def test_user_update(self):
        new_secret = utils.generate_password()
        body = dict(user=dict(name='guy2',
                              access='acc2',
                              secret=new_secret))
        req = webob.Request.blank('/v1.0/users/id2')
        req.headers["Content-Type"] = "application/json"
        req.method = 'PUT'
        req.body = json.dumps(body)

        res = req.get_response(fakes.wsgi_app())
        res_dict = json.loads(res.body)

        self.assertEqual(res.status_int, 200)
        self.assertEqual(res_dict['user']['id'], 'id2')
        self.assertEqual(res_dict['user']['name'], 'guy2')
        self.assertEqual(res_dict['user']['access'], 'acc2')
        self.assertEqual(res_dict['user']['secret'], new_secret)
        self.assertEqual(res_dict['user']['admin'], True)