diff --git a/changelog.d/10697.misc b/changelog.d/10697.misc new file mode 100644 index 000000000..a9ad17faf --- /dev/null +++ b/changelog.d/10697.misc @@ -0,0 +1 @@ +Ensure `rooms.creator` field is always populated for easy lookup in [MSC2716](https://github.com/matrix-org/matrix-doc/pull/2716) usage later. diff --git a/synapse/api/constants.py b/synapse/api/constants.py index 829061c87..5e34eb7e1 100644 --- a/synapse/api/constants.py +++ b/synapse/api/constants.py @@ -198,6 +198,9 @@ class EventContentFields: # cf https://github.com/matrix-org/matrix-doc/pull/1772 ROOM_TYPE = "type" + # The creator of the room, as used in `m.room.create` events. + ROOM_CREATOR = "creator" + # Used on normal messages to indicate they were historically imported after the fact MSC2716_HISTORICAL = "org.matrix.msc2716.historical" # For "insertion" events to indicate what the next chunk ID should be in diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index daf1d3bfb..77df9185f 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -507,6 +507,7 @@ class FederationHandler(BaseHandler): await self.store.upsert_room_on_join( room_id=room_id, room_version=room_version_obj, + auth_events=auth_chain, ) max_stream_id = await self._persist_auth_tree( diff --git a/synapse/storage/databases/main/room.py b/synapse/storage/databases/main/room.py index f98b89259..6e7312266 100644 --- a/synapse/storage/databases/main/room.py +++ b/synapse/storage/databases/main/room.py @@ -19,9 +19,10 @@ from abc import abstractmethod from enum import Enum from typing import Any, Dict, List, Optional, Tuple -from synapse.api.constants import EventTypes, JoinRules +from synapse.api.constants import EventContentFields, EventTypes, JoinRules from synapse.api.errors import StoreError from synapse.api.room_versions import RoomVersion, RoomVersions +from synapse.events import EventBase from synapse.storage._base import SQLBaseStore, db_to_json from synapse.storage.database import DatabasePool, LoggingTransaction from synapse.storage.databases.main.search import SearchStore @@ -1013,6 +1014,7 @@ class _BackgroundUpdates: ADD_ROOMS_ROOM_VERSION_COLUMN = "add_rooms_room_version_column" POPULATE_ROOM_DEPTH_MIN_DEPTH2 = "populate_room_depth_min_depth2" REPLACE_ROOM_DEPTH_MIN_DEPTH = "replace_room_depth_min_depth" + POPULATE_ROOMS_CREATOR_COLUMN = "populate_rooms_creator_column" _REPLACE_ROOM_DEPTH_SQL_COMMANDS = ( @@ -1054,6 +1056,11 @@ class RoomBackgroundUpdateStore(SQLBaseStore): self._background_replace_room_depth_min_depth, ) + self.db_pool.updates.register_background_update_handler( + _BackgroundUpdates.POPULATE_ROOMS_CREATOR_COLUMN, + self._background_populate_rooms_creator_column, + ) + async def _background_insert_retention(self, progress, batch_size): """Retrieves a list of all rooms within a range and inserts an entry for each of them into the room_retention table. @@ -1273,7 +1280,7 @@ class RoomBackgroundUpdateStore(SQLBaseStore): keyvalues={"room_id": room_id}, retcol="MAX(stream_ordering)", allow_none=True, - desc="upsert_room_on_join", + desc="has_auth_chain_index_fallback", ) return max_ordering is None @@ -1343,6 +1350,65 @@ class RoomBackgroundUpdateStore(SQLBaseStore): return 0 + async def _background_populate_rooms_creator_column( + self, progress: dict, batch_size: int + ): + """Background update to go and add creator information to `rooms` + table from `current_state_events` table. + """ + + last_room_id = progress.get("room_id", "") + + def _background_populate_rooms_creator_column_txn(txn: LoggingTransaction): + sql = """ + SELECT room_id, json FROM event_json + INNER JOIN rooms AS room USING (room_id) + INNER JOIN current_state_events AS state_event USING (room_id, event_id) + WHERE room_id > ? AND (room.creator IS NULL OR room.creator = '') AND state_event.type = 'm.room.create' AND state_event.state_key = '' + ORDER BY room_id + LIMIT ? + """ + + txn.execute(sql, (last_room_id, batch_size)) + room_id_to_create_event_results = txn.fetchall() + + new_last_room_id = "" + for room_id, event_json in room_id_to_create_event_results: + event_dict = db_to_json(event_json) + + creator = event_dict.get("content").get(EventContentFields.ROOM_CREATOR) + + self.db_pool.simple_update_txn( + txn, + table="rooms", + keyvalues={"room_id": room_id}, + updatevalues={"creator": creator}, + ) + new_last_room_id = room_id + + if new_last_room_id == "": + return True + + self.db_pool.updates._background_update_progress_txn( + txn, + _BackgroundUpdates.POPULATE_ROOMS_CREATOR_COLUMN, + {"room_id": new_last_room_id}, + ) + + return False + + end = await self.db_pool.runInteraction( + "_background_populate_rooms_creator_column", + _background_populate_rooms_creator_column_txn, + ) + + if end: + await self.db_pool.updates._end_background_update( + _BackgroundUpdates.POPULATE_ROOMS_CREATOR_COLUMN + ) + + return batch_size + class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore, SearchStore): def __init__(self, database: DatabasePool, db_conn, hs): @@ -1350,7 +1416,9 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore, SearchStore): self.config = hs.config - async def upsert_room_on_join(self, room_id: str, room_version: RoomVersion): + async def upsert_room_on_join( + self, room_id: str, room_version: RoomVersion, auth_events: List[EventBase] + ): """Ensure that the room is stored in the table Called when we join a room over federation, and overwrites any room version @@ -1361,6 +1429,24 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore, SearchStore): # mark the room as having an auth chain cover index. has_auth_chain_index = await self.has_auth_chain_index(room_id) + create_event = None + for e in auth_events: + if (e.type, e.state_key) == (EventTypes.Create, ""): + create_event = e + break + + if create_event is None: + # If the state doesn't have a create event then the room is + # invalid, and it would fail auth checks anyway. + raise StoreError(400, "No create event in state") + + room_creator = create_event.content.get(EventContentFields.ROOM_CREATOR) + + if not isinstance(room_creator, str): + # If the create event does not have a creator then the room is + # invalid, and it would fail auth checks anyway. + raise StoreError(400, "No creator defined on the create event") + await self.db_pool.simple_upsert( desc="upsert_room_on_join", table="rooms", @@ -1368,7 +1454,7 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore, SearchStore): values={"room_version": room_version.identifier}, insertion_values={ "is_public": False, - "creator": "", + "creator": room_creator, "has_auth_chain_index": has_auth_chain_index, }, # rooms has a unique constraint on room_id, so no need to lock when doing an @@ -1396,6 +1482,9 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore, SearchStore): insertion_values={ "room_version": room_version.identifier, "is_public": False, + # We don't worry about setting the `creator` here because + # we don't process any messages in a room while a user is + # invited (only after the join). "creator": "", "has_auth_chain_index": has_auth_chain_index, }, diff --git a/synapse/storage/schema/main/delta/63/02populate-rooms-creator.sql b/synapse/storage/schema/main/delta/63/02populate-rooms-creator.sql new file mode 100644 index 000000000..f7c0b3126 --- /dev/null +++ b/synapse/storage/schema/main/delta/63/02populate-rooms-creator.sql @@ -0,0 +1,17 @@ +/* Copyright 2021 The Matrix.org Foundation C.I.C + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * 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. + */ + +INSERT INTO background_updates (ordering, update_name, progress_json) + VALUES (6302, 'populate_rooms_creator_column', '{}'); diff --git a/tests/storage/databases/main/test_room.py b/tests/storage/databases/main/test_room.py new file mode 100644 index 000000000..ffee70715 --- /dev/null +++ b/tests/storage/databases/main/test_room.py @@ -0,0 +1,98 @@ +# Copyright 2021 The Matrix.org Foundation C.I.C. +# +# Licensed under the Apache License, Version 2.0 (the 'License'); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an 'AS IS' BASIS, +# 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 synapse.rest import admin +from synapse.rest.client import login, room +from synapse.storage.databases.main.room import _BackgroundUpdates + +from tests.unittest import HomeserverTestCase + + +class RoomBackgroundUpdateStoreTestCase(HomeserverTestCase): + + servlets = [ + admin.register_servlets, + room.register_servlets, + login.register_servlets, + ] + + def prepare(self, reactor, clock, hs): + self.store = hs.get_datastore() + self.user_id = self.register_user("foo", "pass") + self.token = self.login("foo", "pass") + + def _generate_room(self) -> str: + room_id = self.helper.create_room_as(self.user_id, tok=self.token) + + return room_id + + def test_background_populate_rooms_creator_column(self): + """Test that the background update to populate the rooms creator column + works properly. + """ + + # Insert a room without the creator + room_id = self._generate_room() + self.get_success( + self.store.db_pool.simple_update( + table="rooms", + keyvalues={"room_id": room_id}, + updatevalues={"creator": None}, + desc="test", + ) + ) + + # Make sure the test is starting out with a room without a creator + room_creator_before = self.get_success( + self.store.db_pool.simple_select_one_onecol( + table="rooms", + keyvalues={"room_id": room_id}, + retcol="creator", + allow_none=True, + ) + ) + self.assertEqual(room_creator_before, None) + + # Insert and run the background update. + self.get_success( + self.store.db_pool.simple_insert( + "background_updates", + { + "update_name": _BackgroundUpdates.POPULATE_ROOMS_CREATOR_COLUMN, + "progress_json": "{}", + }, + ) + ) + + # ... and tell the DataStore that it hasn't finished all updates yet + self.store.db_pool.updates._all_done = False + + # Now let's actually drive the updates to completion + while not self.get_success( + self.store.db_pool.updates.has_completed_background_updates() + ): + self.get_success( + self.store.db_pool.updates.do_next_background_update(100), by=0.1 + ) + + # Make sure the background update filled in the room creator + room_creator_after = self.get_success( + self.store.db_pool.simple_select_one_onecol( + table="rooms", + keyvalues={"room_id": room_id}, + retcol="creator", + allow_none=True, + ) + ) + self.assertEqual(room_creator_after, self.user_id)