diff options
Diffstat (limited to 'tests/crypto/test_keyring.py')
| -rw-r--r-- | tests/crypto/test_keyring.py | 135 |
1 files changed, 108 insertions, 27 deletions
diff --git a/tests/crypto/test_keyring.py b/tests/crypto/test_keyring.py index 3933ad4347..096401938d 100644 --- a/tests/crypto/test_keyring.py +++ b/tests/crypto/test_keyring.py @@ -19,6 +19,7 @@ from mock import Mock import canonicaljson import signedjson.key import signedjson.sign +from signedjson.key import get_verify_key from twisted.internet import defer @@ -137,7 +138,7 @@ class KeyringTestCase(unittest.HomeserverTestCase): context_11.request = "11" res_deferreds = kr.verify_json_objects_for_server( - [("server10", json1), ("server11", {})] + [("server10", json1, 0), ("server11", {}, 0)] ) # the unsigned json should be rejected pretty quickly @@ -174,7 +175,7 @@ class KeyringTestCase(unittest.HomeserverTestCase): self.http_client.post_json.return_value = defer.Deferred() res_deferreds_2 = kr.verify_json_objects_for_server( - [("server10", json1)] + [("server10", json1, 0)] ) res_deferreds_2[0].addBoth(self.check_context, None) yield logcontext.make_deferred_yieldable(res_deferreds_2[0]) @@ -197,31 +198,108 @@ class KeyringTestCase(unittest.HomeserverTestCase): kr = keyring.Keyring(self.hs) key1 = signedjson.key.generate_signing_key(1) - key1_id = "%s:%s" % (key1.alg, key1.version) - r = self.hs.datastore.store_server_verify_keys( "server9", time.time() * 1000, - [ - ( - "server9", - key1_id, - FetchKeyResult(signedjson.key.get_verify_key(key1), 1000), - ), - ], + [("server9", get_key_id(key1), FetchKeyResult(get_verify_key(key1), 1000))], ) self.get_success(r) + json1 = {} signedjson.sign.sign_json(json1, "server9", key1) # should fail immediately on an unsigned object - d = _verify_json_for_server(kr, "server9", {}) + d = _verify_json_for_server(kr, "server9", {}, 0) self.failureResultOf(d, SynapseError) - d = _verify_json_for_server(kr, "server9", json1) - self.assertFalse(d.called) + # should suceed on a signed object + d = _verify_json_for_server(kr, "server9", json1, 500) + # self.assertFalse(d.called) self.get_success(d) + def test_verify_json_dedupes_key_requests(self): + """Two requests for the same key should be deduped.""" + key1 = signedjson.key.generate_signing_key(1) + + def get_keys(keys_to_fetch): + # there should only be one request object (with the max validity) + self.assertEqual(keys_to_fetch, {"server1": {get_key_id(key1): 1500}}) + + return defer.succeed( + { + "server1": { + get_key_id(key1): FetchKeyResult(get_verify_key(key1), 1200) + } + } + ) + + mock_fetcher = keyring.KeyFetcher() + mock_fetcher.get_keys = Mock(side_effect=get_keys) + kr = keyring.Keyring(self.hs, key_fetchers=(mock_fetcher,)) + + json1 = {} + signedjson.sign.sign_json(json1, "server1", key1) + + # the first request should succeed; the second should fail because the key + # has expired + results = kr.verify_json_objects_for_server( + [("server1", json1, 500), ("server1", json1, 1500)] + ) + self.assertEqual(len(results), 2) + self.get_success(results[0]) + e = self.get_failure(results[1], SynapseError).value + self.assertEqual(e.errcode, "M_UNAUTHORIZED") + self.assertEqual(e.code, 401) + + # there should have been a single call to the fetcher + mock_fetcher.get_keys.assert_called_once() + + def test_verify_json_falls_back_to_other_fetchers(self): + """If the first fetcher cannot provide a recent enough key, we fall back""" + key1 = signedjson.key.generate_signing_key(1) + + def get_keys1(keys_to_fetch): + self.assertEqual(keys_to_fetch, {"server1": {get_key_id(key1): 1500}}) + return defer.succeed( + { + "server1": { + get_key_id(key1): FetchKeyResult(get_verify_key(key1), 800) + } + } + ) + + def get_keys2(keys_to_fetch): + self.assertEqual(keys_to_fetch, {"server1": {get_key_id(key1): 1500}}) + return defer.succeed( + { + "server1": { + get_key_id(key1): FetchKeyResult(get_verify_key(key1), 1200) + } + } + ) + + mock_fetcher1 = keyring.KeyFetcher() + mock_fetcher1.get_keys = Mock(side_effect=get_keys1) + mock_fetcher2 = keyring.KeyFetcher() + mock_fetcher2.get_keys = Mock(side_effect=get_keys2) + kr = keyring.Keyring(self.hs, key_fetchers=(mock_fetcher1, mock_fetcher2)) + + json1 = {} + signedjson.sign.sign_json(json1, "server1", key1) + + results = kr.verify_json_objects_for_server( + [("server1", json1, 1200), ("server1", json1, 1500)] + ) + self.assertEqual(len(results), 2) + self.get_success(results[0]) + e = self.get_failure(results[1], SynapseError).value + self.assertEqual(e.errcode, "M_UNAUTHORIZED") + self.assertEqual(e.code, 401) + + # there should have been a single call to each fetcher + mock_fetcher1.get_keys.assert_called_once() + mock_fetcher2.get_keys.assert_called_once() + class ServerKeyFetcherTestCase(unittest.HomeserverTestCase): def make_homeserver(self, reactor, clock): @@ -260,8 +338,8 @@ class ServerKeyFetcherTestCase(unittest.HomeserverTestCase): self.http_client.get_json.side_effect = get_json - server_name_and_key_ids = [(SERVER_NAME, ("key1",))] - keys = self.get_success(fetcher.get_keys(server_name_and_key_ids)) + keys_to_fetch = {SERVER_NAME: {"key1": 0}} + keys = self.get_success(fetcher.get_keys(keys_to_fetch)) k = keys[SERVER_NAME][testverifykey_id] self.assertEqual(k.valid_until_ts, VALID_UNTIL_TS) self.assertEqual(k.verify_key, testverifykey) @@ -288,9 +366,7 @@ class ServerKeyFetcherTestCase(unittest.HomeserverTestCase): # change the server name: it should cause a rejection response["server_name"] = "OTHER_SERVER" - self.get_failure( - fetcher.get_keys(server_name_and_key_ids), KeyLookupError - ) + self.get_failure(fetcher.get_keys(keys_to_fetch), KeyLookupError) class PerspectivesKeyFetcherTestCase(unittest.HomeserverTestCase): @@ -342,8 +418,8 @@ class PerspectivesKeyFetcherTestCase(unittest.HomeserverTestCase): self.http_client.post_json.side_effect = post_json - server_name_and_key_ids = [(SERVER_NAME, ("key1",))] - keys = self.get_success(fetcher.get_keys(server_name_and_key_ids)) + keys_to_fetch = {SERVER_NAME: {"key1": 0}} + keys = self.get_success(fetcher.get_keys(keys_to_fetch)) self.assertIn(SERVER_NAME, keys) k = keys[SERVER_NAME][testverifykey_id] self.assertEqual(k.valid_until_ts, VALID_UNTIL_TS) @@ -401,7 +477,7 @@ class PerspectivesKeyFetcherTestCase(unittest.HomeserverTestCase): def get_key_from_perspectives(response): fetcher = PerspectivesKeyFetcher(self.hs) - server_name_and_key_ids = [(SERVER_NAME, ("key1",))] + keys_to_fetch = {SERVER_NAME: {"key1": 0}} def post_json(destination, path, data, **kwargs): self.assertEqual(destination, self.mock_perspective_server.server_name) @@ -410,9 +486,7 @@ class PerspectivesKeyFetcherTestCase(unittest.HomeserverTestCase): self.http_client.post_json.side_effect = post_json - return self.get_success( - fetcher.get_keys(server_name_and_key_ids) - ) + return self.get_success(fetcher.get_keys(keys_to_fetch)) # start with a valid response so we can check we are testing the right thing response = build_response() @@ -435,6 +509,11 @@ class PerspectivesKeyFetcherTestCase(unittest.HomeserverTestCase): self.assertEqual(keys, {}, "Expected empty dict with missing origin server sig") +def get_key_id(key): + """Get the matrix ID tag for a given SigningKey or VerifyKey""" + return "%s:%s" % (key.alg, key.version) + + @defer.inlineCallbacks def run_in_context(f, *args, **kwargs): with LoggingContext("testctx") as ctx: @@ -445,14 +524,16 @@ def run_in_context(f, *args, **kwargs): defer.returnValue(rv) -def _verify_json_for_server(keyring, server_name, json_object): +def _verify_json_for_server(keyring, server_name, json_object, validity_time): """thin wrapper around verify_json_for_server which makes sure it is wrapped with the patched defer.inlineCallbacks. """ @defer.inlineCallbacks def v(): - rv1 = yield keyring.verify_json_for_server(server_name, json_object) + rv1 = yield keyring.verify_json_for_server( + server_name, json_object, validity_time + ) defer.returnValue(rv1) return run_in_context(v) |