From 4df10d32148ae29f792afc68ff774bcbd1915cea Mon Sep 17 00:00:00 2001 From: Patrick Cloke Date: Thu, 24 Mar 2022 10:25:42 -0400 Subject: [PATCH] Do not consider events by ignored users for relations (#12285) Filter the events returned from `/relations` for the requester's ignored users in a similar way to `/messages` (and `/sync`). --- changelog.d/12227.bugfix | 1 + changelog.d/12227.misc | 1 - changelog.d/12232.bugfix | 1 + changelog.d/12232.misc | 1 - changelog.d/12285.bugfix | 1 + synapse/handlers/relations.py | 9 +++- tests/rest/client/test_relations.py | 80 ++++++++++++++++++++++++++++- 7 files changed, 90 insertions(+), 4 deletions(-) create mode 100644 changelog.d/12227.bugfix delete mode 100644 changelog.d/12227.misc create mode 100644 changelog.d/12232.bugfix delete mode 100644 changelog.d/12232.misc create mode 100644 changelog.d/12285.bugfix diff --git a/changelog.d/12227.bugfix b/changelog.d/12227.bugfix new file mode 100644 index 0000000000..1a7dccf465 --- /dev/null +++ b/changelog.d/12227.bugfix @@ -0,0 +1 @@ +Fix a long-standing bug where events from ignored users were still considered for relations. diff --git a/changelog.d/12227.misc b/changelog.d/12227.misc deleted file mode 100644 index 41c9dcbd37..0000000000 --- a/changelog.d/12227.misc +++ /dev/null @@ -1 +0,0 @@ -Refactor the relations endpoints to add a `RelationsHandler`. diff --git a/changelog.d/12232.bugfix b/changelog.d/12232.bugfix new file mode 100644 index 0000000000..1a7dccf465 --- /dev/null +++ b/changelog.d/12232.bugfix @@ -0,0 +1 @@ +Fix a long-standing bug where events from ignored users were still considered for relations. diff --git a/changelog.d/12232.misc b/changelog.d/12232.misc deleted file mode 100644 index 4a4132edff..0000000000 --- a/changelog.d/12232.misc +++ /dev/null @@ -1 +0,0 @@ -Refactor relations tests to improve code re-use. diff --git a/changelog.d/12285.bugfix b/changelog.d/12285.bugfix new file mode 100644 index 0000000000..1a7dccf465 --- /dev/null +++ b/changelog.d/12285.bugfix @@ -0,0 +1 @@ +Fix a long-standing bug where events from ignored users were still considered for relations. diff --git a/synapse/handlers/relations.py b/synapse/handlers/relations.py index 57135d4519..73217d135d 100644 --- a/synapse/handlers/relations.py +++ b/synapse/handlers/relations.py @@ -21,6 +21,7 @@ from synapse.api.constants import RelationTypes from synapse.api.errors import SynapseError from synapse.events import EventBase from synapse.types import JsonDict, Requester, StreamToken +from synapse.visibility import filter_events_for_client if TYPE_CHECKING: from synapse.server import HomeServer @@ -62,6 +63,7 @@ class BundledAggregations: class RelationsHandler: def __init__(self, hs: "HomeServer"): self._main_store = hs.get_datastores().main + self._storage = hs.get_storage() self._auth = hs.get_auth() self._clock = hs.get_clock() self._event_handler = hs.get_event_handler() @@ -103,7 +105,8 @@ class RelationsHandler: user_id = requester.user.to_string() - await self._auth.check_user_in_room_or_world_readable( + # TODO Properly handle a user leaving a room. + (_, member_event_id) = await self._auth.check_user_in_room_or_world_readable( room_id, user_id, allow_departed_users=True ) @@ -130,6 +133,10 @@ class RelationsHandler: [c["event_id"] for c in pagination_chunk.chunk] ) + events = await filter_events_for_client( + self._storage, user_id, events, is_peeking=(member_event_id is None) + ) + now = self._clock.time_msec() # Do not bundle aggregations when retrieving the original event because # we want the content before relations are applied to it. diff --git a/tests/rest/client/test_relations.py b/tests/rest/client/test_relations.py index 329690f8f7..fe97a0b3dd 100644 --- a/tests/rest/client/test_relations.py +++ b/tests/rest/client/test_relations.py @@ -20,7 +20,7 @@ from unittest.mock import patch from twisted.test.proto_helpers import MemoryReactor -from synapse.api.constants import EventTypes, RelationTypes +from synapse.api.constants import AccountDataTypes, EventTypes, RelationTypes from synapse.rest import admin from synapse.rest.client import login, register, relations, room, sync from synapse.server import HomeServer @@ -1324,6 +1324,84 @@ class BundledAggregationsTestCase(BaseRelationsTestCase): self.assertIn("m.relations", parent_event["unsigned"]) +class RelationIgnoredUserTestCase(BaseRelationsTestCase): + """Relations sent from an ignored user should be ignored.""" + + def _test_ignored_user( + self, allowed_event_ids: List[str], ignored_event_ids: List[str] + ) -> None: + """ + Fetch the relations and ensure they're all there, then ignore user2, and + repeat. + """ + # Get the relations. + event_ids = self._get_related_events() + self.assertCountEqual(event_ids, allowed_event_ids + ignored_event_ids) + + # Ignore user2 and re-do the requests. + self.get_success( + self.store.add_account_data_for_user( + self.user_id, + AccountDataTypes.IGNORED_USER_LIST, + {"ignored_users": {self.user2_id: {}}}, + ) + ) + + # Get the relations. + event_ids = self._get_related_events() + self.assertCountEqual(event_ids, allowed_event_ids) + + def test_annotation(self) -> None: + """Annotations should ignore""" + # Send 2 from us, 2 from the to be ignored user. + allowed_event_ids = [] + ignored_event_ids = [] + channel = self._send_relation(RelationTypes.ANNOTATION, "m.reaction", key="a") + allowed_event_ids.append(channel.json_body["event_id"]) + channel = self._send_relation(RelationTypes.ANNOTATION, "m.reaction", key="b") + allowed_event_ids.append(channel.json_body["event_id"]) + channel = self._send_relation( + RelationTypes.ANNOTATION, + "m.reaction", + key="a", + access_token=self.user2_token, + ) + ignored_event_ids.append(channel.json_body["event_id"]) + channel = self._send_relation( + RelationTypes.ANNOTATION, + "m.reaction", + key="c", + access_token=self.user2_token, + ) + ignored_event_ids.append(channel.json_body["event_id"]) + + self._test_ignored_user(allowed_event_ids, ignored_event_ids) + + def test_reference(self) -> None: + """Annotations should ignore""" + channel = self._send_relation(RelationTypes.REFERENCE, "m.room.test") + allowed_event_ids = [channel.json_body["event_id"]] + + channel = self._send_relation( + RelationTypes.REFERENCE, "m.room.test", access_token=self.user2_token + ) + ignored_event_ids = [channel.json_body["event_id"]] + + self._test_ignored_user(allowed_event_ids, ignored_event_ids) + + def test_thread(self) -> None: + """Annotations should ignore""" + channel = self._send_relation(RelationTypes.THREAD, "m.room.test") + allowed_event_ids = [channel.json_body["event_id"]] + + channel = self._send_relation( + RelationTypes.THREAD, "m.room.test", access_token=self.user2_token + ) + ignored_event_ids = [channel.json_body["event_id"]] + + self._test_ignored_user(allowed_event_ids, ignored_event_ids) + + class RelationRedactionTestCase(BaseRelationsTestCase): """ Test the behaviour of relations when the parent or child event is redacted.