diff options
| -rw-r--r-- | changelog.d/13546.bugfix | 1 | ||||
| -rw-r--r-- | synapse/handlers/room_member.py | 7 | ||||
| -rw-r--r-- | tests/handlers/test_room_member.py | 93 | ||||
| -rw-r--r-- | tests/storage/test_roommember.py | 4 |
4 files changed, 99 insertions, 6 deletions
diff --git a/changelog.d/13546.bugfix b/changelog.d/13546.bugfix new file mode 100644 index 0000000000..83bc3a61d2 --- /dev/null +++ b/changelog.d/13546.bugfix @@ -0,0 +1 @@ +Fix bug that user cannot `/forget` rooms after the last member has left the room. \ No newline at end of file diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py index 709682622f..e726997d83 100644 --- a/synapse/handlers/room_member.py +++ b/synapse/handlers/room_member.py @@ -1925,8 +1925,11 @@ class RoomMemberMasterHandler(RoomMemberHandler): ]: raise SynapseError(400, "User %s in room %s" % (user_id, room_id)) - if membership: - await self.store.forget(user_id, room_id) + # In normal case this call is only required if `membership` is not `None`. + # But: After the last member had left the room, the background update + # `_background_remove_left_rooms` is deleting rows related to this room from + # the table `current_state_events` and `get_current_state_events` is `None`. + await self.store.forget(user_id, room_id) def get_users_which_can_issue_invite(auth_events: StateMap[EventBase]) -> List[str]: diff --git a/tests/handlers/test_room_member.py b/tests/handlers/test_room_member.py index 1d13ed1e88..6bbfd5dc84 100644 --- a/tests/handlers/test_room_member.py +++ b/tests/handlers/test_room_member.py @@ -6,7 +6,7 @@ import synapse.rest.admin import synapse.rest.client.login import synapse.rest.client.room from synapse.api.constants import EventTypes, Membership -from synapse.api.errors import LimitExceededError +from synapse.api.errors import LimitExceededError, SynapseError from synapse.crypto.event_signing import add_hashes_and_signatures from synapse.events import FrozenEventV3 from synapse.federation.federation_client import SendJoinResult @@ -17,7 +17,11 @@ from synapse.util import Clock from tests.replication._base import BaseMultiWorkerStreamTestCase from tests.server import make_request from tests.test_utils import make_awaitable -from tests.unittest import FederatingHomeserverTestCase, override_config +from tests.unittest import ( + FederatingHomeserverTestCase, + HomeserverTestCase, + override_config, +) class TestJoinsLimitedByPerRoomRateLimiter(FederatingHomeserverTestCase): @@ -287,3 +291,88 @@ class TestReplicatedJoinsLimitedByPerRoomRateLimiter(BaseMultiWorkerStreamTestCa ), LimitExceededError, ) + + +class RoomMemberMasterHandlerTestCase(HomeserverTestCase): + servlets = [ + synapse.rest.admin.register_servlets, + synapse.rest.client.login.register_servlets, + synapse.rest.client.room.register_servlets, + ] + + def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None: + self.handler = hs.get_room_member_handler() + self.store = hs.get_datastores().main + + # Create two users. + self.alice = self.register_user("alice", "pass") + self.alice_ID = UserID.from_string(self.alice) + self.alice_token = self.login("alice", "pass") + self.bob = self.register_user("bob", "pass") + self.bob_ID = UserID.from_string(self.bob) + self.bob_token = self.login("bob", "pass") + + # Create a room on this homeserver. + self.room_id = self.helper.create_room_as(self.alice, tok=self.alice_token) + + def test_leave_and_forget(self) -> None: + """Tests that forget a room is successfully. The test is performed with two users, + as forgetting by the last user respectively after all users had left the + is a special edge case.""" + self.helper.join(self.room_id, user=self.bob, tok=self.bob_token) + + # alice is not the last room member that leaves and forgets the room + self.helper.leave(self.room_id, user=self.alice, tok=self.alice_token) + self.get_success(self.handler.forget(self.alice_ID, self.room_id)) + self.assertTrue( + self.get_success(self.store.did_forget(self.alice, self.room_id)) + ) + + # the server has not forgotten the room + self.assertFalse( + self.get_success(self.store.is_locally_forgotten_room(self.room_id)) + ) + + def test_leave_and_forget_last_user(self) -> None: + """Tests that forget a room is successfully when the last user has left the room.""" + + # alice is the last room member that leaves and forgets the room + self.helper.leave(self.room_id, user=self.alice, tok=self.alice_token) + self.get_success(self.handler.forget(self.alice_ID, self.room_id)) + self.assertTrue( + self.get_success(self.store.did_forget(self.alice, self.room_id)) + ) + + # the server has forgotten the room + self.assertTrue( + self.get_success(self.store.is_locally_forgotten_room(self.room_id)) + ) + + def test_forget_when_not_left(self) -> None: + """Tests that a user cannot not forgets a room that has not left.""" + self.get_failure(self.handler.forget(self.alice_ID, self.room_id), SynapseError) + + def test_rejoin_forgotten_by_user(self) -> None: + """Test that a user that has forgotten a room can do a re-join. + The room was not forgotten from the local server. + One local user is still member of the room.""" + self.helper.join(self.room_id, user=self.bob, tok=self.bob_token) + + self.helper.leave(self.room_id, user=self.alice, tok=self.alice_token) + self.get_success(self.handler.forget(self.alice_ID, self.room_id)) + self.assertTrue( + self.get_success(self.store.did_forget(self.alice, self.room_id)) + ) + + # the server has not forgotten the room + self.assertFalse( + self.get_success(self.store.is_locally_forgotten_room(self.room_id)) + ) + + self.helper.join(self.room_id, user=self.alice, tok=self.alice_token) + # TODO: A join to a room does not invalidate the forgotten cache + # see https://github.com/matrix-org/synapse/issues/13262 + self.store.did_forget.invalidate_all() + self.assertFalse( + self.get_success(self.store.did_forget(self.alice, self.room_id)) + ) diff --git a/tests/storage/test_roommember.py b/tests/storage/test_roommember.py index ceec690285..8794401823 100644 --- a/tests/storage/test_roommember.py +++ b/tests/storage/test_roommember.py @@ -158,7 +158,7 @@ class RoomMemberStoreTestCase(unittest.HomeserverTestCase): # Check that alice's display name is now None self.assertEqual(row[0]["display_name"], None) - def test_room_is_locally_forgotten(self): + def test_room_is_locally_forgotten(self) -> None: """Test that when the last local user has forgotten a room it is known as forgotten.""" # join two local and one remote user self.room = self.helper.create_room_as(self.u_alice, tok=self.t_alice) @@ -199,7 +199,7 @@ class RoomMemberStoreTestCase(unittest.HomeserverTestCase): self.get_success(self.store.is_locally_forgotten_room(self.room)) ) - def test_join_locally_forgotten_room(self): + def test_join_locally_forgotten_room(self) -> None: """Tests if a user joins a forgotten room the room is not forgotten anymore.""" self.room = self.helper.create_room_as(self.u_alice, tok=self.t_alice) self.assertFalse( |