From 4cc4229cd7a55d2556c798fecbb1c9660dc821c8 Mon Sep 17 00:00:00 2001 From: Brendan Abolivier Date: Mon, 23 May 2022 19:18:23 +0200 Subject: [PATCH] Prevent expired events from being filtered out when retention is disabled (#12611) Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com> Co-authored-by: Patrick Cloke --- changelog.d/12611.bugfix | 1 + synapse/handlers/pagination.py | 2 +- synapse/storage/databases/main/room.py | 45 ++++++++++++++------------ synapse/types.py | 6 ++++ synapse/visibility.py | 6 ++-- tests/rest/client/test_relations.py | 8 ++--- tests/rest/client/test_retention.py | 35 +++++++++++++++++--- 7 files changed, 71 insertions(+), 32 deletions(-) create mode 100644 changelog.d/12611.bugfix diff --git a/changelog.d/12611.bugfix b/changelog.d/12611.bugfix new file mode 100644 index 000000000..093c45a20 --- /dev/null +++ b/changelog.d/12611.bugfix @@ -0,0 +1 @@ +Fix a bug introduced in Synapse 1.7.0 that would prevent events from being sent to clients if there's a retention policy in the room when the support for retention policies is disabled. diff --git a/synapse/handlers/pagination.py b/synapse/handlers/pagination.py index 6ae88add9..19a440705 100644 --- a/synapse/handlers/pagination.py +++ b/synapse/handlers/pagination.py @@ -239,7 +239,7 @@ class PaginationHandler: # defined in the server's configuration, we can safely assume that's the # case and use it for this room. max_lifetime = ( - retention_policy["max_lifetime"] or self._retention_default_max_lifetime + retention_policy.max_lifetime or self._retention_default_max_lifetime ) # Cap the effective max_lifetime to be within the range allowed in the diff --git a/synapse/storage/databases/main/room.py b/synapse/storage/databases/main/room.py index 87e9482c6..ded15b92e 100644 --- a/synapse/storage/databases/main/room.py +++ b/synapse/storage/databases/main/room.py @@ -45,7 +45,7 @@ from synapse.storage.database import ( from synapse.storage.databases.main.cache import CacheInvalidationWorkerStore from synapse.storage.types import Cursor from synapse.storage.util.id_generators import IdGenerator -from synapse.types import JsonDict, ThirdPartyInstanceID +from synapse.types import JsonDict, RetentionPolicy, ThirdPartyInstanceID from synapse.util import json_encoder from synapse.util.caches.descriptors import cached from synapse.util.stringutils import MXC_REGEX @@ -699,7 +699,7 @@ class RoomWorkerStore(CacheInvalidationWorkerStore): await self.db_pool.runInteraction("delete_ratelimit", delete_ratelimit_txn) @cached() - async def get_retention_policy_for_room(self, room_id: str) -> Dict[str, int]: + async def get_retention_policy_for_room(self, room_id: str) -> RetentionPolicy: """Get the retention policy for a given room. If no retention policy has been found for this room, returns a policy defined @@ -707,12 +707,20 @@ class RoomWorkerStore(CacheInvalidationWorkerStore): the 'max_lifetime' if no default policy has been defined in the server's configuration). + If support for retention policies is disabled, a policy with a 'min_lifetime' and + 'max_lifetime' of None is returned. + Args: room_id: The ID of the room to get the retention policy of. Returns: A dict containing "min_lifetime" and "max_lifetime" for this room. """ + # If the room retention feature is disabled, return a policy with no minimum nor + # maximum. This prevents incorrectly filtering out events when sending to + # the client. + if not self.config.retention.retention_enabled: + return RetentionPolicy() def get_retention_policy_for_room_txn( txn: LoggingTransaction, @@ -736,10 +744,10 @@ class RoomWorkerStore(CacheInvalidationWorkerStore): # If we don't know this room ID, ret will be None, in this case return the default # policy. if not ret: - return { - "min_lifetime": self.config.retention.retention_default_min_lifetime, - "max_lifetime": self.config.retention.retention_default_max_lifetime, - } + return RetentionPolicy( + min_lifetime=self.config.retention.retention_default_min_lifetime, + max_lifetime=self.config.retention.retention_default_max_lifetime, + ) min_lifetime = ret[0]["min_lifetime"] max_lifetime = ret[0]["max_lifetime"] @@ -754,10 +762,10 @@ class RoomWorkerStore(CacheInvalidationWorkerStore): if max_lifetime is None: max_lifetime = self.config.retention.retention_default_max_lifetime - return { - "min_lifetime": min_lifetime, - "max_lifetime": max_lifetime, - } + return RetentionPolicy( + min_lifetime=min_lifetime, + max_lifetime=max_lifetime, + ) async def get_media_mxcs_in_room(self, room_id: str) -> Tuple[List[str], List[str]]: """Retrieves all the local and remote media MXC URIs in a given room @@ -994,7 +1002,7 @@ class RoomWorkerStore(CacheInvalidationWorkerStore): async def get_rooms_for_retention_period_in_range( self, min_ms: Optional[int], max_ms: Optional[int], include_null: bool = False - ) -> Dict[str, Dict[str, Optional[int]]]: + ) -> Dict[str, RetentionPolicy]: """Retrieves all of the rooms within the given retention range. Optionally includes the rooms which don't have a retention policy. @@ -1016,7 +1024,7 @@ class RoomWorkerStore(CacheInvalidationWorkerStore): def get_rooms_for_retention_period_in_range_txn( txn: LoggingTransaction, - ) -> Dict[str, Dict[str, Optional[int]]]: + ) -> Dict[str, RetentionPolicy]: range_conditions = [] args = [] @@ -1047,10 +1055,10 @@ class RoomWorkerStore(CacheInvalidationWorkerStore): rooms_dict = {} for row in rows: - rooms_dict[row["room_id"]] = { - "min_lifetime": row["min_lifetime"], - "max_lifetime": row["max_lifetime"], - } + rooms_dict[row["room_id"]] = RetentionPolicy( + min_lifetime=row["min_lifetime"], + max_lifetime=row["max_lifetime"], + ) if include_null: # If required, do a second query that retrieves all of the rooms we know @@ -1065,10 +1073,7 @@ class RoomWorkerStore(CacheInvalidationWorkerStore): # policy in its state), add it with a null policy. for row in rows: if row["room_id"] not in rooms_dict: - rooms_dict[row["room_id"]] = { - "min_lifetime": None, - "max_lifetime": None, - } + rooms_dict[row["room_id"]] = RetentionPolicy() return rooms_dict diff --git a/synapse/types.py b/synapse/types.py index bd8071d51..6f7128ddd 100644 --- a/synapse/types.py +++ b/synapse/types.py @@ -932,3 +932,9 @@ class UserProfile(TypedDict): user_id: str display_name: Optional[str] avatar_url: Optional[str] + + +@attr.s(auto_attribs=True, frozen=True, slots=True) +class RetentionPolicy: + min_lifetime: Optional[int] = None + max_lifetime: Optional[int] = None diff --git a/synapse/visibility.py b/synapse/visibility.py index de6d2ffc5..da4af0279 100644 --- a/synapse/visibility.py +++ b/synapse/visibility.py @@ -22,7 +22,7 @@ from synapse.events import EventBase from synapse.events.utils import prune_event from synapse.storage import Storage from synapse.storage.state import StateFilter -from synapse.types import StateMap, get_domain_from_id +from synapse.types import RetentionPolicy, StateMap, get_domain_from_id logger = logging.getLogger(__name__) @@ -94,7 +94,7 @@ async def filter_events_for_client( if filter_send_to_client: room_ids = {e.room_id for e in events} - retention_policies = {} + retention_policies: Dict[str, RetentionPolicy] = {} for room_id in room_ids: retention_policies[ @@ -137,7 +137,7 @@ async def filter_events_for_client( # events. if not event.is_state(): retention_policy = retention_policies[event.room_id] - max_lifetime = retention_policy.get("max_lifetime") + max_lifetime = retention_policy.max_lifetime if max_lifetime is not None: oldest_allowed_ts = storage.main.clock.time_msec() - max_lifetime diff --git a/tests/rest/client/test_relations.py b/tests/rest/client/test_relations.py index 27dee8f69..bc9cc51b9 100644 --- a/tests/rest/client/test_relations.py +++ b/tests/rest/client/test_relations.py @@ -995,7 +995,7 @@ class BundledAggregationsTestCase(BaseRelationsTestCase): bundled_aggregations, ) - self._test_bundled_aggregations(RelationTypes.ANNOTATION, assert_annotations, 7) + self._test_bundled_aggregations(RelationTypes.ANNOTATION, assert_annotations, 6) def test_annotation_to_annotation(self) -> None: """Any relation to an annotation should be ignored.""" @@ -1031,7 +1031,7 @@ class BundledAggregationsTestCase(BaseRelationsTestCase): bundled_aggregations, ) - self._test_bundled_aggregations(RelationTypes.REFERENCE, assert_annotations, 7) + self._test_bundled_aggregations(RelationTypes.REFERENCE, assert_annotations, 6) def test_thread(self) -> None: """ @@ -1060,7 +1060,7 @@ class BundledAggregationsTestCase(BaseRelationsTestCase): bundled_aggregations.get("latest_event"), ) - self._test_bundled_aggregations(RelationTypes.THREAD, assert_thread, 10) + self._test_bundled_aggregations(RelationTypes.THREAD, assert_thread, 9) def test_thread_with_bundled_aggregations_for_latest(self) -> None: """ @@ -1106,7 +1106,7 @@ class BundledAggregationsTestCase(BaseRelationsTestCase): bundled_aggregations["latest_event"].get("unsigned"), ) - self._test_bundled_aggregations(RelationTypes.THREAD, assert_thread, 10) + self._test_bundled_aggregations(RelationTypes.THREAD, assert_thread, 9) def test_nested_thread(self) -> None: """ diff --git a/tests/rest/client/test_retention.py b/tests/rest/client/test_retention.py index 7b8fe6d02..2cd7a9e6c 100644 --- a/tests/rest/client/test_retention.py +++ b/tests/rest/client/test_retention.py @@ -11,6 +11,7 @@ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. +from typing import Any, Dict from unittest.mock import Mock from twisted.test.proto_helpers import MemoryReactor @@ -252,16 +253,24 @@ class RetentionNoDefaultPolicyTestCase(unittest.HomeserverTestCase): room.register_servlets, ] - def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer: - config = self.default_config() - config["retention"] = { + def default_config(self) -> Dict[str, Any]: + config = super().default_config() + + retention_config = { "enabled": True, } + # Update this config with what's in the default config so that + # override_config works as expected. + retention_config.update(config.get("retention", {})) + config["retention"] = retention_config + + return config + + def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer: mock_federation_client = Mock(spec=["backfill"]) self.hs = self.setup_test_homeserver( - config=config, federation_client=mock_federation_client, ) return self.hs @@ -295,6 +304,24 @@ class RetentionNoDefaultPolicyTestCase(unittest.HomeserverTestCase): self._test_retention(room_id, expected_code_for_first_event=404) + @unittest.override_config({"retention": {"enabled": False}}) + def test_visibility_when_disabled(self) -> None: + """Retention policies should be ignored when the retention feature is disabled.""" + room_id = self.helper.create_room_as(self.user_id, tok=self.token) + + self.helper.send_state( + room_id=room_id, + event_type=EventTypes.Retention, + body={"max_lifetime": one_day_ms}, + tok=self.token, + ) + + resp = self.helper.send(room_id=room_id, body="test", tok=self.token) + + self.reactor.advance(one_day_ms * 2 / 1000) + + self.get_event(room_id, resp["event_id"]) + def _test_retention( self, room_id: str, expected_code_for_first_event: int = 200 ) -> None: