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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 . """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 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)