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# Copyright 2014 Google Inc. 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.
"""Unit tests for oauth2client.contrib.gce."""
import datetime
import json
import os
import unittest
import mock
from six.moves import http_client
from six.moves import reload_module
from oauth2client import client
from oauth2client.contrib import _metadata
from oauth2client.contrib import gce
from tests import http_mock
SERVICE_ACCOUNT_INFO = {
'scopes': ['a', 'b'],
'email': 'a@example.com',
'aliases': ['default']
}
METADATA_PATH = 'instance/service-accounts/a@example.com/token'
class AppAssertionCredentialsTests(unittest.TestCase):
def test_constructor(self):
credentials = gce.AppAssertionCredentials()
self.assertIsNone(credentials.assertion_type, None)
self.assertIsNone(credentials.service_account_email)
self.assertIsNone(credentials.scopes)
self.assertTrue(credentials.invalid)
@mock.patch('warnings.warn')
def test_constructor_with_scopes(self, warn_mock):
scope = 'http://example.com/a http://example.com/b'
scopes = scope.split()
credentials = gce.AppAssertionCredentials(scopes=scopes)
self.assertEqual(credentials.scopes, None)
self.assertEqual(credentials.assertion_type, None)
warn_mock.assert_called_once_with(gce._SCOPES_WARNING)
def test_to_json(self):
credentials = gce.AppAssertionCredentials()
with self.assertRaises(NotImplementedError):
credentials.to_json()
def test_from_json(self):
with self.assertRaises(NotImplementedError):
gce.AppAssertionCredentials.from_json({})
@mock.patch('oauth2client.contrib._metadata.get_token',
side_effect=[('A', datetime.datetime.min),
('B', datetime.datetime.max)])
@mock.patch('oauth2client.contrib._metadata.get_service_account_info',
return_value=SERVICE_ACCOUNT_INFO)
def test_refresh_token(self, get_info, get_token):
http_mock = object()
credentials = gce.AppAssertionCredentials()
credentials.invalid = False
credentials.service_account_email = 'a@example.com'
self.assertIsNone(credentials.access_token)
credentials.get_access_token(http=http_mock)
self.assertEqual(credentials.access_token, 'A')
self.assertTrue(credentials.access_token_expired)
get_token.assert_called_with(http_mock,
service_account='a@example.com')
credentials.get_access_token(http=http_mock)
self.assertEqual(credentials.access_token, 'B')
self.assertFalse(credentials.access_token_expired)
get_token.assert_called_with(http_mock,
service_account='a@example.com')
get_info.assert_not_called()
def test_refresh_token_failed_fetch(self):
headers = {
'status': http_client.NOT_FOUND,
'content-type': 'application/json',
}
response = json.dumps({'access_token': 'a', 'expires_in': 100})
http = http_mock.HttpMock(headers=headers, data=response)
credentials = gce.AppAssertionCredentials()
credentials.invalid = False
credentials.service_account_email = 'a@example.com'
with self.assertRaises(client.HttpAccessTokenRefreshError):
credentials._refresh(http)
# Verify mock.
self.assertEqual(http.requests, 1)
expected_uri = _metadata.METADATA_ROOT + METADATA_PATH
self.assertEqual(http.uri, expected_uri)
self.assertEqual(http.method, 'GET')
self.assertIsNone(http.body)
self.assertEqual(http.headers, _metadata.METADATA_HEADERS)
def test_serialization_data(self):
credentials = gce.AppAssertionCredentials()
with self.assertRaises(NotImplementedError):
getattr(credentials, 'serialization_data')
def test_create_scoped_required(self):
credentials = gce.AppAssertionCredentials()
self.assertFalse(credentials.create_scoped_required())
def test_sign_blob_not_implemented(self):
credentials = gce.AppAssertionCredentials([])
with self.assertRaises(NotImplementedError):
credentials.sign_blob(b'blob')
@mock.patch('oauth2client.contrib._metadata.get_service_account_info',
return_value=SERVICE_ACCOUNT_INFO)
def test_retrieve_scopes(self, metadata):
http_mock = object()
credentials = gce.AppAssertionCredentials()
self.assertTrue(credentials.invalid)
self.assertIsNone(credentials.scopes)
scopes = credentials.retrieve_scopes(http_mock)
self.assertEqual(scopes, SERVICE_ACCOUNT_INFO['scopes'])
self.assertFalse(credentials.invalid)
credentials.retrieve_scopes(http_mock)
# Assert scopes weren't refetched
metadata.assert_called_once_with(http_mock,
service_account='default')
@mock.patch('oauth2client.contrib._metadata.get_service_account_info',
side_effect=http_client.HTTPException('No Such Email'))
def test_retrieve_scopes_bad_email(self, metadata):
http_mock = object()
credentials = gce.AppAssertionCredentials(email='b@example.com')
with self.assertRaises(http_client.HTTPException):
credentials.retrieve_scopes(http_mock)
metadata.assert_called_once_with(http_mock,
service_account='b@example.com')
def test_save_to_well_known_file(self):
import os
ORIGINAL_ISDIR = os.path.isdir
try:
os.path.isdir = lambda path: True
credentials = gce.AppAssertionCredentials()
with self.assertRaises(NotImplementedError):
client.save_to_well_known_file(credentials)
finally:
os.path.isdir = ORIGINAL_ISDIR
def test_custom_metadata_root_from_env(self):
headers = {'content-type': 'application/json'}
http = http_mock.HttpMock(headers=headers, data='{}')
fake_metadata_root = 'another.metadata.service'
os.environ['GCE_METADATA_ROOT'] = fake_metadata_root
reload_module(_metadata)
try:
_metadata.get(http, '')
finally:
del os.environ['GCE_METADATA_ROOT']
reload_module(_metadata)
# Verify mock.
self.assertEqual(http.requests, 1)
expected_uri = 'http://{}/computeMetadata/v1/'.format(fake_metadata_root)
self.assertEqual(http.uri, expected_uri)
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