diff options
| -rw-r--r-- | changelog.d/13958.bugfix | 1 | ||||
| -rw-r--r-- | docs/upgrade.md | 19 | ||||
| -rw-r--r-- | synapse/appservice/__init__.py | 16 | ||||
| -rw-r--r-- | synapse/storage/databases/main/appservice.py | 17 | ||||
| -rw-r--r-- | synapse/storage/databases/main/roommember.py | 3 | ||||
| -rw-r--r-- | tests/appservice/test_appservice.py | 10 | ||||
| -rw-r--r-- | tests/handlers/test_appservice.py | 162 |
7 files changed, 214 insertions, 14 deletions
diff --git a/changelog.d/13958.bugfix b/changelog.d/13958.bugfix new file mode 100644 index 0000000000..f9f651bfdc --- /dev/null +++ b/changelog.d/13958.bugfix @@ -0,0 +1 @@ +Check appservice user interest against the local users instead of all users in the room to align with [MSC3905](https://github.com/matrix-org/matrix-spec-proposals/pull/3905). diff --git a/docs/upgrade.md b/docs/upgrade.md index 78c34d0c15..f095bbc3a6 100644 --- a/docs/upgrade.md +++ b/docs/upgrade.md @@ -97,6 +97,25 @@ As announced with the release of [Synapse 1.69.0](#deprecation-of-the-generate_s Modules relying on it can instead use the `create_login_token` method. +## Changes to the events received by application services (interest) + +To align with spec (changed in +[MSC3905](https://github.com/matrix-org/matrix-spec-proposals/pull/3905)), Synapse now +only considers local users to be interesting. In other words, the `users` namespace +regex is only be applied against local users of the homeserver. + +Please note, this probably doesn't affect the expected behavior of your application +service, since an interesting local user in a room still means all messages in the room +(from local or remote users) will still be considered interesting. And matching a room +with the `rooms` or `aliases` namespace regex will still consider all events sent in the +room to be interesting to the application service. + +If one of your application service's `users` regex was intending to match a remote user, +this will no longer match as you expect. The behavioral mismatch between matching all +local users and some remote users is why the spec was changed/clarified and this +caveat is no longer supported. + + # Upgrading to v1.69.0 ## Changes to the receipts replication streams diff --git a/synapse/appservice/__init__.py b/synapse/appservice/__init__.py index 0dfa00df44..500bdde3a9 100644 --- a/synapse/appservice/__init__.py +++ b/synapse/appservice/__init__.py @@ -172,12 +172,24 @@ class ApplicationService: Returns: True if this service would like to know about this room. """ - member_list = await store.get_users_in_room( + # We can use `get_local_users_in_room(...)` here because an application service + # can only be interested in local users of the server it's on (ignore any remote + # users that might match the user namespace regex). + # + # In the future, we can consider re-using + # `store.get_app_service_users_in_room` which is very similar to this + # function but has a slightly worse performance than this because we + # have an early escape-hatch if we find a single user that the + # appservice is interested in. The juice would be worth the squeeze if + # `store.get_app_service_users_in_room` was used in more places besides + # an experimental MSC. But for now we can avoid doing more work and + # barely using it later. + local_user_ids = await store.get_local_users_in_room( room_id, on_invalidate=cache_context.invalidate ) # check joined member events - for user_id in member_list: + for user_id in local_user_ids: if self.is_interested_in_user(user_id): return True return False diff --git a/synapse/storage/databases/main/appservice.py b/synapse/storage/databases/main/appservice.py index 64b70a7b28..63046c0527 100644 --- a/synapse/storage/databases/main/appservice.py +++ b/synapse/storage/databases/main/appservice.py @@ -157,10 +157,23 @@ class ApplicationServiceWorkerStore(RoomMemberWorkerStore): app_service: "ApplicationService", cache_context: _CacheContext, ) -> List[str]: - users_in_room = await self.get_users_in_room( + """ + Get all users in a room that the appservice controls. + + Args: + room_id: The room to check in. + app_service: The application service to check interest/control against + + Returns: + List of user IDs that the appservice controls. + """ + # We can use `get_local_users_in_room(...)` here because an application service + # can only be interested in local users of the server it's on (ignore any remote + # users that might match the user namespace regex). + local_users_in_room = await self.get_local_users_in_room( room_id, on_invalidate=cache_context.invalidate ) - return list(filter(app_service.is_interested_in_user, users_in_room)) + return list(filter(app_service.is_interested_in_user, local_users_in_room)) class ApplicationServiceStore(ApplicationServiceWorkerStore): diff --git a/synapse/storage/databases/main/roommember.py b/synapse/storage/databases/main/roommember.py index ab708b0ba5..e56a13f21e 100644 --- a/synapse/storage/databases/main/roommember.py +++ b/synapse/storage/databases/main/roommember.py @@ -152,6 +152,9 @@ class RoomMemberWorkerStore(EventsWorkerStore): the forward extremities of those rooms will exclude most members. We may also calculate room state incorrectly for such rooms and believe that a member is or is not in the room when the opposite is true. + + Note: If you only care about users in the room local to the homeserver, use + `get_local_users_in_room(...)` instead which will be more performant. """ return await self.db_pool.simple_select_onecol( table="current_state_events", diff --git a/tests/appservice/test_appservice.py b/tests/appservice/test_appservice.py index 3018d3fc6f..d4dccfc2f0 100644 --- a/tests/appservice/test_appservice.py +++ b/tests/appservice/test_appservice.py @@ -43,7 +43,7 @@ class ApplicationServiceTestCase(unittest.TestCase): self.store = Mock() self.store.get_aliases_for_room = simple_async_mock([]) - self.store.get_users_in_room = simple_async_mock([]) + self.store.get_local_users_in_room = simple_async_mock([]) @defer.inlineCallbacks def test_regex_user_id_prefix_match(self): @@ -129,7 +129,7 @@ class ApplicationServiceTestCase(unittest.TestCase): self.store.get_aliases_for_room = simple_async_mock( ["#irc_foobar:matrix.org", "#athing:matrix.org"] ) - self.store.get_users_in_room = simple_async_mock([]) + self.store.get_local_users_in_room = simple_async_mock([]) self.assertTrue( ( yield defer.ensureDeferred( @@ -184,7 +184,7 @@ class ApplicationServiceTestCase(unittest.TestCase): self.store.get_aliases_for_room = simple_async_mock( ["#xmpp_foobar:matrix.org", "#athing:matrix.org"] ) - self.store.get_users_in_room = simple_async_mock([]) + self.store.get_local_users_in_room = simple_async_mock([]) self.assertFalse( ( yield defer.ensureDeferred( @@ -203,7 +203,7 @@ class ApplicationServiceTestCase(unittest.TestCase): self.service.namespaces[ApplicationService.NS_USERS].append(_regex("@irc_.*")) self.event.sender = "@irc_foobar:matrix.org" self.store.get_aliases_for_room = simple_async_mock(["#irc_barfoo:matrix.org"]) - self.store.get_users_in_room = simple_async_mock([]) + self.store.get_local_users_in_room = simple_async_mock([]) self.assertTrue( ( yield defer.ensureDeferred( @@ -236,7 +236,7 @@ class ApplicationServiceTestCase(unittest.TestCase): def test_member_list_match(self): self.service.namespaces[ApplicationService.NS_USERS].append(_regex("@irc_.*")) # Note that @irc_fo:here is the AS user. - self.store.get_users_in_room = simple_async_mock( + self.store.get_local_users_in_room = simple_async_mock( ["@alice:here", "@irc_fo:here", "@bob:here"] ) self.store.get_aliases_for_room = simple_async_mock([]) diff --git a/tests/handlers/test_appservice.py b/tests/handlers/test_appservice.py index 7e4570f990..144e49d0fd 100644 --- a/tests/handlers/test_appservice.py +++ b/tests/handlers/test_appservice.py @@ -22,7 +22,7 @@ from twisted.test.proto_helpers import MemoryReactor import synapse.rest.admin import synapse.storage -from synapse.api.constants import EduTypes +from synapse.api.constants import EduTypes, EventTypes from synapse.appservice import ( ApplicationService, TransactionOneTimeKeyCounts, @@ -36,7 +36,7 @@ from synapse.util import Clock from synapse.util.stringutils import random_string from tests import unittest -from tests.test_utils import make_awaitable, simple_async_mock +from tests.test_utils import event_injection, make_awaitable, simple_async_mock from tests.unittest import override_config from tests.utils import MockClock @@ -390,15 +390,16 @@ class ApplicationServicesHandlerSendEventsTestCase(unittest.HomeserverTestCase): receipts.register_servlets, ] - def prepare(self, reactor, clock, hs): + def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer): + self.hs = hs # Mock the ApplicationServiceScheduler's _TransactionController's send method so that # we can track any outgoing ephemeral events self.send_mock = simple_async_mock() - hs.get_application_service_handler().scheduler.txn_ctrl.send = self.send_mock + hs.get_application_service_handler().scheduler.txn_ctrl.send = self.send_mock # type: ignore[assignment] # Mock out application services, and allow defining our own in tests self._services: List[ApplicationService] = [] - self.hs.get_datastores().main.get_app_services = Mock( + self.hs.get_datastores().main.get_app_services = Mock( # type: ignore[assignment] return_value=self._services ) @@ -416,6 +417,157 @@ class ApplicationServicesHandlerSendEventsTestCase(unittest.HomeserverTestCase): "exclusive_as_user", "password", self.exclusive_as_user_device_id ) + def _notify_interested_services(self): + # This is normally set in `notify_interested_services` but we need to call the + # internal async version so the reactor gets pushed to completion. + self.hs.get_application_service_handler().current_max += 1 + self.get_success( + self.hs.get_application_service_handler()._notify_interested_services( + RoomStreamToken( + None, self.hs.get_application_service_handler().current_max + ) + ) + ) + + @parameterized.expand( + [ + ("@local_as_user:test", True), + # Defining remote users in an application service user namespace regex is a + # footgun since the appservice might assume that it'll receive all events + # sent by that remote user, but it will only receive events in rooms that + # are shared with a local user. So we just remove this footgun possibility + # entirely and we won't notify the application service based on remote + # users. + ("@remote_as_user:remote", False), + ] + ) + def test_match_interesting_room_members( + self, interesting_user: str, should_notify: bool + ): + """ + Test to make sure that a interesting user (local or remote) in the room is + notified as expected when someone else in the room sends a message. + """ + # Register an application service that's interested in the `interesting_user` + interested_appservice = self._register_application_service( + namespaces={ + ApplicationService.NS_USERS: [ + { + "regex": interesting_user, + "exclusive": False, + }, + ], + }, + ) + + # Create a room + alice = self.register_user("alice", "pass") + alice_access_token = self.login("alice", "pass") + room_id = self.helper.create_room_as(room_creator=alice, tok=alice_access_token) + + # Join the interesting user to the room + self.get_success( + event_injection.inject_member_event( + self.hs, room_id, interesting_user, "join" + ) + ) + # Kick the appservice into checking this membership event to get the event out + # of the way + self._notify_interested_services() + # We don't care about the interesting user join event (this test is making sure + # the next thing works) + self.send_mock.reset_mock() + + # Send a message from an uninteresting user + self.helper.send_event( + room_id, + type=EventTypes.Message, + content={ + "msgtype": "m.text", + "body": "message from uninteresting user", + }, + tok=alice_access_token, + ) + # Kick the appservice into checking this new event + self._notify_interested_services() + + if should_notify: + self.send_mock.assert_called_once() + ( + service, + events, + _ephemeral, + _to_device_messages, + _otks, + _fbks, + _device_list_summary, + ) = self.send_mock.call_args[0] + + # Even though the message came from an uninteresting user, it should still + # notify us because the interesting user is joined to the room where the + # message was sent. + self.assertEqual(service, interested_appservice) + self.assertEqual(events[0]["type"], "m.room.message") + self.assertEqual(events[0]["sender"], alice) + else: + self.send_mock.assert_not_called() + + def test_application_services_receive_events_sent_by_interesting_local_user(self): + """ + Test to make sure that a messages sent from a local user can be interesting and + picked up by the appservice. + """ + # Register an application service that's interested in all local users + interested_appservice = self._register_application_service( + namespaces={ + ApplicationService.NS_USERS: [ + { + "regex": ".*", + "exclusive": False, + }, + ], + }, + ) + + # Create a room + alice = self.register_user("alice", "pass") + alice_access_token = self.login("alice", "pass") + room_id = self.helper.create_room_as(room_creator=alice, tok=alice_access_token) + + # We don't care about interesting events before this (this test is making sure + # the next thing works) + self.send_mock.reset_mock() + + # Send a message from the interesting local user + self.helper.send_event( + room_id, + type=EventTypes.Message, + content={ + "msgtype": "m.text", + "body": "message from interesting local user", + }, + tok=alice_access_token, + ) + # Kick the appservice into checking this new event + self._notify_interested_services() + + self.send_mock.assert_called_once() + ( + service, + events, + _ephemeral, + _to_device_messages, + _otks, + _fbks, + _device_list_summary, + ) = self.send_mock.call_args[0] + + # Events sent from an interesting local user should also be picked up as + # interesting to the appservice. + self.assertEqual(service, interested_appservice) + self.assertEqual(events[0]["type"], "m.room.message") + self.assertEqual(events[0]["sender"], alice) + def test_sending_read_receipt_batches_to_application_services(self): """Tests that a large batch of read receipts are sent correctly to interested application services. |