Factor out KeyFetchers from KeyRing

Rather than have three methods which have to have the same interface,
factor out a separate interface which is provided by three implementations.

I find it easier to grok the code this way.
This commit is contained in:
Richard van der Hoff 2019-04-09 18:28:17 +01:00
parent b75537beaf
commit 895b79ac2e
3 changed files with 276 additions and 218 deletions

View file

@ -24,7 +24,11 @@ from twisted.internet import defer
from synapse.api.errors import SynapseError
from synapse.crypto import keyring
from synapse.crypto.keyring import KeyLookupError
from synapse.crypto.keyring import (
KeyLookupError,
PerspectivesKeyFetcher,
ServerKeyFetcher,
)
from synapse.storage.keys import FetchKeyResult
from synapse.util import logcontext
from synapse.util.logcontext import LoggingContext
@ -218,12 +222,19 @@ class KeyringTestCase(unittest.HomeserverTestCase):
self.assertFalse(d.called)
self.get_success(d)
class ServerKeyFetcherTestCase(unittest.HomeserverTestCase):
def make_homeserver(self, reactor, clock):
self.http_client = Mock()
hs = self.setup_test_homeserver(handlers=None, http_client=self.http_client)
return hs
def test_get_keys_from_server(self):
# arbitrarily advance the clock a bit
self.reactor.advance(100)
SERVER_NAME = "server2"
kr = keyring.Keyring(self.hs)
fetcher = ServerKeyFetcher(self.hs)
testkey = signedjson.key.generate_signing_key("ver1")
testverifykey = signedjson.key.get_verify_key(testkey)
testverifykey_id = "ed25519:ver1"
@ -250,7 +261,7 @@ class KeyringTestCase(unittest.HomeserverTestCase):
self.http_client.get_json.side_effect = get_json
server_name_and_key_ids = [(SERVER_NAME, ("key1",))]
keys = self.get_success(kr.get_keys_from_server(server_name_and_key_ids))
keys = self.get_success(fetcher.get_keys(server_name_and_key_ids))
k = keys[SERVER_NAME][testverifykey_id]
self.assertEqual(k.valid_until_ts, VALID_UNTIL_TS)
self.assertEqual(k.verify_key, testverifykey)
@ -278,15 +289,26 @@ class KeyringTestCase(unittest.HomeserverTestCase):
# change the server name: it should cause a rejection
response["server_name"] = "OTHER_SERVER"
self.get_failure(
kr.get_keys_from_server(server_name_and_key_ids), KeyLookupError
fetcher.get_keys(server_name_and_key_ids), KeyLookupError
)
class PerspectivesKeyFetcherTestCase(unittest.HomeserverTestCase):
def make_homeserver(self, reactor, clock):
self.mock_perspective_server = MockPerspectiveServer()
self.http_client = Mock()
hs = self.setup_test_homeserver(handlers=None, http_client=self.http_client)
keys = self.mock_perspective_server.get_verify_keys()
hs.config.perspectives = {self.mock_perspective_server.server_name: keys}
return hs
def test_get_keys_from_perspectives(self):
# arbitrarily advance the clock a bit
self.reactor.advance(100)
fetcher = PerspectivesKeyFetcher(self.hs)
SERVER_NAME = "server2"
kr = keyring.Keyring(self.hs)
testkey = signedjson.key.generate_signing_key("ver1")
testverifykey = signedjson.key.get_verify_key(testkey)
testverifykey_id = "ed25519:ver1"
@ -320,7 +342,7 @@ class KeyringTestCase(unittest.HomeserverTestCase):
self.http_client.post_json.side_effect = post_json
server_name_and_key_ids = [(SERVER_NAME, ("key1",))]
keys = self.get_success(kr.get_keys_from_perspectives(server_name_and_key_ids))
keys = self.get_success(fetcher.get_keys(server_name_and_key_ids))
self.assertIn(SERVER_NAME, keys)
k = keys[SERVER_NAME][testverifykey_id]
self.assertEqual(k.valid_until_ts, VALID_UNTIL_TS)