Current File : //lib/python3/dist-packages/launchpadlib/tests/test_credential_store.py
# Copyright 2010-2011 Canonical Ltd.
# This file is part of launchpadlib.
#
# launchpadlib is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation, version 3 of the License.
#
# launchpadlib is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
# for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with launchpadlib. If not, see <http://www.gnu.org/licenses/>.
"""Tests for the credential store classes."""
import os
import tempfile
import unittest
from base64 import b64decode
if bytes is str:
# Python 2
unicode_type = unicode # noqa: F821
else:
unicode_type = str
from launchpadlib.testing.helpers import (
fake_keyring,
InMemoryKeyring,
)
from launchpadlib.credentials import (
AccessToken,
Credentials,
KeyringCredentialStore,
UnencryptedFileCredentialStore,
)
class TestAccessToken(unittest.TestCase):
"""Tests for the AccessToken class."""
def test_from_string(self):
access_token = AccessToken.from_string(
"oauth_token_secret=secret%3Dpassword&oauth_token=lock%26key"
)
self.assertEqual("lock&key", access_token.key)
self.assertEqual("secret=password", access_token.secret)
self.assertIsNone(access_token.context)
def test_from_string_with_context(self):
access_token = AccessToken.from_string(
"oauth_token_secret=secret%3Dpassword&oauth_token=lock%26key&"
"lp.context=firefox"
)
self.assertEqual("lock&key", access_token.key)
self.assertEqual("secret=password", access_token.secret)
self.assertEqual("firefox", access_token.context)
class CredentialStoreTestCase(unittest.TestCase):
def make_credential(self, consumer_key):
"""Helper method to make a fake credential."""
return Credentials(
"app name",
consumer_secret="consumer_secret:42",
access_token=AccessToken(consumer_key, "access_secret:168"),
)
class TestUnencryptedFileCredentialStore(CredentialStoreTestCase):
"""Tests for the UnencryptedFileCredentialStore class."""
def setUp(self):
ignore, self.filename = tempfile.mkstemp()
self.store = UnencryptedFileCredentialStore(self.filename)
def tearDown(self):
if os.path.exists(self.filename):
os.remove(self.filename)
def test_save_and_load(self):
# Make sure you can save and load credentials to a file.
credential = self.make_credential("consumer key")
self.store.save(credential, "unique key")
credential2 = self.store.load("unique key")
self.assertEqual(credential.consumer.key, credential2.consumer.key)
def test_unique_id_doesnt_matter(self):
# If a file contains a credential, that credential will be
# accessed no matter what unique ID you specify.
credential = self.make_credential("consumer key")
self.store.save(credential, "some key")
credential2 = self.store.load("some other key")
self.assertEqual(credential.consumer.key, credential2.consumer.key)
def test_file_only_contains_one_credential(self):
# A credential file may contain only one credential. If you
# write two credentials with different unique IDs to the same
# file, the first credential will be overwritten with the
# second.
credential1 = self.make_credential("consumer key")
credential2 = self.make_credential("consumer key2")
self.store.save(credential1, "unique key 1")
self.store.save(credential1, "unique key 2")
loaded = self.store.load("unique key 1")
self.assertEqual(loaded.consumer.key, credential2.consumer.key)
class TestKeyringCredentialStore(CredentialStoreTestCase):
"""Tests for the KeyringCredentialStore class."""
def setUp(self):
self.keyring = InMemoryKeyring()
self.store = KeyringCredentialStore()
def test_save_and_load(self):
# Make sure you can save and load credentials to a keyring.
with fake_keyring(self.keyring):
credential = self.make_credential("consumer key")
self.store.save(credential, "unique key")
credential2 = self.store.load("unique key")
self.assertEqual(credential.consumer.key, credential2.consumer.key)
def test_lookup_by_unique_key(self):
# Credentials in the keyring are looked up by the unique ID
# under which they were stored.
with fake_keyring(self.keyring):
credential1 = self.make_credential("consumer key1")
self.store.save(credential1, "key 1")
credential2 = self.make_credential("consumer key2")
self.store.save(credential2, "key 2")
loaded1 = self.store.load("key 1")
self.assertTrue(loaded1)
self.assertEqual(credential1.consumer.key, loaded1.consumer.key)
loaded2 = self.store.load("key 2")
self.assertEqual(credential2.consumer.key, loaded2.consumer.key)
def test_reused_unique_id_overwrites_old_credential(self):
# Writing a credential to the keyring with a given unique ID
# will overwrite any credential stored under that ID.
with fake_keyring(self.keyring):
credential1 = self.make_credential("consumer key1")
self.store.save(credential1, "the only key")
credential2 = self.make_credential("consumer key2")
self.store.save(credential2, "the only key")
loaded = self.store.load("the only key")
self.assertEqual(credential2.consumer.key, loaded.consumer.key)
def test_bad_unique_id_returns_none(self):
# Trying to load a credential without providing a good unique
# ID will get you None.
with fake_keyring(self.keyring):
self.assertIsNone(self.store.load("no such key"))
def test_keyring_returns_unicode(self):
# Kwallet is reported to sometimes return Unicode, which broke the
# credentials parsing. This test ensures a Unicode password is
# handled correctly. (See bug lp:877374)
class UnicodeInMemoryKeyring(InMemoryKeyring):
def get_password(self, service, username):
password = super(UnicodeInMemoryKeyring, self).get_password(
service, username
)
if isinstance(password, unicode_type):
password = password.encode("utf-8")
return password
self.keyring = UnicodeInMemoryKeyring()
with fake_keyring(self.keyring):
credential = self.make_credential("consumer key")
self.assertTrue(credential)
# Shouldn't this test actually use a unicodish key?!
self.store.save(credential, "unique key")
credential2 = self.store.load("unique key")
self.assertTrue(credential2)
self.assertEqual(credential.consumer.key, credential2.consumer.key)
self.assertEqual(
credential.consumer.secret, credential2.consumer.secret
)
def test_nonencoded_key_handled(self):
# For backwards compatibility with keys that are not base 64 encoded.
class UnencodedInMemoryKeyring(InMemoryKeyring):
def get_password(self, service, username):
pw = super(UnencodedInMemoryKeyring, self).get_password(
service, username
)
return b64decode(pw[5:])
self.keyring = UnencodedInMemoryKeyring()
with fake_keyring(self.keyring):
credential = self.make_credential("consumer key")
self.store.save(credential, "unique key")
credential2 = self.store.load("unique key")
self.assertEqual(credential.consumer.key, credential2.consumer.key)
self.assertEqual(
credential.consumer.secret, credential2.consumer.secret
)
def test_corrupted_key_handled(self):
# A corrupted password results in None being returned.
class CorruptedInMemoryKeyring(InMemoryKeyring):
def get_password(self, service, username):
return "bad"
self.keyring = CorruptedInMemoryKeyring()
with fake_keyring(self.keyring):
credential = self.make_credential("consumer key")
self.store.save(credential, "unique key")
credential2 = self.store.load("unique key")
self.assertIsNone(credential2)
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