Ensure rejected events get added to some metadata tables (#9016)

Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
This commit is contained in:
Erik Johnston 2021-01-11 13:57:33 +00:00 committed by GitHub
parent 2fb1c2b6e6
commit 63f4990298
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4 changed files with 167 additions and 24 deletions

1
changelog.d/9016.misc Normal file
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@ -0,0 +1 @@
Ensure rejected events get added to some metadata tables.

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@ -799,7 +799,8 @@ class PersistEventsStore:
return [ec for ec in events_and_contexts if ec[0] not in to_remove]
def _store_event_txn(self, txn, events_and_contexts):
"""Insert new events into the event and event_json tables
"""Insert new events into the event, event_json, redaction and
state_events tables.
Args:
txn (twisted.enterprise.adbapi.Connection): db connection
@ -871,6 +872,29 @@ class PersistEventsStore:
updatevalues={"have_censored": False},
)
state_events_and_contexts = [
ec for ec in events_and_contexts if ec[0].is_state()
]
state_values = []
for event, context in state_events_and_contexts:
vals = {
"event_id": event.event_id,
"room_id": event.room_id,
"type": event.type,
"state_key": event.state_key,
}
# TODO: How does this work with backfilling?
if hasattr(event, "replaces_state"):
vals["prev_state"] = event.replaces_state
state_values.append(vals)
self.db_pool.simple_insert_many_txn(
txn, table="state_events", values=state_values
)
def _store_rejected_events_txn(self, txn, events_and_contexts):
"""Add rows to the 'rejections' table for received events which were
rejected
@ -987,29 +1011,6 @@ class PersistEventsStore:
txn, [event for event, _ in events_and_contexts]
)
state_events_and_contexts = [
ec for ec in events_and_contexts if ec[0].is_state()
]
state_values = []
for event, context in state_events_and_contexts:
vals = {
"event_id": event.event_id,
"room_id": event.room_id,
"type": event.type,
"state_key": event.state_key,
}
# TODO: How does this work with backfilling?
if hasattr(event, "replaces_state"):
vals["prev_state"] = event.replaces_state
state_values.append(vals)
self.db_pool.simple_insert_many_txn(
txn, table="state_events", values=state_values
)
# Prefill the event cache
self._add_to_cache(txn, events_and_contexts)

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@ -14,10 +14,15 @@
# limitations under the License.
import logging
from typing import List, Tuple
from synapse.api.constants import EventContentFields
from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
from synapse.events import make_event_from_dict
from synapse.storage._base import SQLBaseStore, db_to_json, make_in_list_sql_clause
from synapse.storage.database import DatabasePool
from synapse.storage.types import Cursor
from synapse.types import JsonDict
logger = logging.getLogger(__name__)
@ -99,6 +104,10 @@ class EventsBackgroundUpdatesStore(SQLBaseStore):
columns=["user_id", "created_ts"],
)
self.db_pool.updates.register_background_update_handler(
"rejected_events_metadata", self._rejected_events_metadata,
)
async def _background_reindex_fields_sender(self, progress, batch_size):
target_min_stream_id = progress["target_min_stream_id_inclusive"]
max_stream_id = progress["max_stream_id_exclusive"]
@ -582,3 +591,118 @@ class EventsBackgroundUpdatesStore(SQLBaseStore):
await self.db_pool.updates._end_background_update("event_store_labels")
return num_rows
async def _rejected_events_metadata(self, progress: dict, batch_size: int) -> int:
"""Adds rejected events to the `state_events` and `event_auth` metadata
tables.
"""
last_event_id = progress.get("last_event_id", "")
def get_rejected_events(
txn: Cursor,
) -> List[Tuple[str, str, JsonDict, bool, bool]]:
# Fetch rejected event json, their room version and whether we have
# inserted them into the state_events or auth_events tables.
#
# Note we can assume that events that don't have a corresponding
# room version are V1 rooms.
sql = """
SELECT DISTINCT
event_id,
COALESCE(room_version, '1'),
json,
state_events.event_id IS NOT NULL,
event_auth.event_id IS NOT NULL
FROM rejections
INNER JOIN event_json USING (event_id)
LEFT JOIN rooms USING (room_id)
LEFT JOIN state_events USING (event_id)
LEFT JOIN event_auth USING (event_id)
WHERE event_id > ?
ORDER BY event_id
LIMIT ?
"""
txn.execute(sql, (last_event_id, batch_size,))
return [(row[0], row[1], db_to_json(row[2]), row[3], row[4]) for row in txn] # type: ignore
results = await self.db_pool.runInteraction(
desc="_rejected_events_metadata_get", func=get_rejected_events
)
if not results:
await self.db_pool.updates._end_background_update(
"rejected_events_metadata"
)
return 0
state_events = []
auth_events = []
for event_id, room_version, event_json, has_state, has_event_auth in results:
last_event_id = event_id
if has_state and has_event_auth:
continue
room_version_obj = KNOWN_ROOM_VERSIONS.get(room_version)
if not room_version_obj:
# We no longer support this room version, so we just ignore the
# events entirely.
logger.info(
"Ignoring event with unknown room version %r: %r",
room_version,
event_id,
)
continue
event = make_event_from_dict(event_json, room_version_obj)
if not event.is_state():
continue
if not has_state:
state_events.append(
{
"event_id": event.event_id,
"room_id": event.room_id,
"type": event.type,
"state_key": event.state_key,
}
)
if not has_event_auth:
for auth_id in event.auth_event_ids():
auth_events.append(
{
"room_id": event.room_id,
"event_id": event.event_id,
"auth_id": auth_id,
}
)
if state_events:
await self.db_pool.simple_insert_many(
table="state_events",
values=state_events,
desc="_rejected_events_metadata_state_events",
)
if auth_events:
await self.db_pool.simple_insert_many(
table="event_auth",
values=auth_events,
desc="_rejected_events_metadata_event_auth",
)
await self.db_pool.updates._background_update_progress(
"rejected_events_metadata", {"last_event_id": last_event_id}
)
if len(results) < batch_size:
await self.db_pool.updates._end_background_update(
"rejected_events_metadata"
)
return len(results)

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@ -0,0 +1,17 @@
/* Copyright 2020 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
(5828, 'rejected_events_metadata', '{}');