mirror of
https://git.anonymousland.org/anonymousland/synapse.git
synced 2024-10-01 11:49:51 -04:00
258 lines
10 KiB
Python
258 lines
10 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2016 OpenMarket Ltd
|
|
#
|
|
# 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 ._base import BaseSlavedStore
|
|
from ._slaved_id_tracker import SlavedIdTracker
|
|
|
|
from synapse.api.constants import EventTypes
|
|
from synapse.events import FrozenEvent
|
|
from synapse.storage import DataStore
|
|
from synapse.storage.roommember import RoomMemberStore
|
|
from synapse.storage.event_federation import EventFederationStore
|
|
from synapse.storage.event_push_actions import EventPushActionsStore
|
|
from synapse.storage.state import StateStore
|
|
from synapse.storage.stream import StreamStore
|
|
from synapse.util.caches.stream_change_cache import StreamChangeCache
|
|
|
|
import ujson as json
|
|
|
|
# So, um, we want to borrow a load of functions intended for reading from
|
|
# a DataStore, but we don't want to take functions that either write to the
|
|
# DataStore or are cached and don't have cache invalidation logic.
|
|
#
|
|
# Rather than write duplicate versions of those functions, or lift them to
|
|
# a common base class, we going to grab the underlying __func__ object from
|
|
# the method descriptor on the DataStore and chuck them into our class.
|
|
|
|
|
|
class SlavedEventStore(BaseSlavedStore):
|
|
|
|
def __init__(self, db_conn, hs):
|
|
super(SlavedEventStore, self).__init__(db_conn, hs)
|
|
self._stream_id_gen = SlavedIdTracker(
|
|
db_conn, "events", "stream_ordering",
|
|
)
|
|
self._backfill_id_gen = SlavedIdTracker(
|
|
db_conn, "events", "stream_ordering", step=-1
|
|
)
|
|
events_max = self._stream_id_gen.get_current_token()
|
|
event_cache_prefill, min_event_val = self._get_cache_dict(
|
|
db_conn, "events",
|
|
entity_column="room_id",
|
|
stream_column="stream_ordering",
|
|
max_value=events_max,
|
|
)
|
|
self._events_stream_cache = StreamChangeCache(
|
|
"EventsRoomStreamChangeCache", min_event_val,
|
|
prefilled_cache=event_cache_prefill,
|
|
)
|
|
self._membership_stream_cache = StreamChangeCache(
|
|
"MembershipStreamChangeCache", events_max,
|
|
)
|
|
|
|
# Cached functions can't be accessed through a class instance so we need
|
|
# to reach inside the __dict__ to extract them.
|
|
get_rooms_for_user = RoomMemberStore.__dict__["get_rooms_for_user"]
|
|
get_users_in_room = RoomMemberStore.__dict__["get_users_in_room"]
|
|
get_latest_event_ids_in_room = EventFederationStore.__dict__[
|
|
"get_latest_event_ids_in_room"
|
|
]
|
|
_get_current_state_for_key = StateStore.__dict__[
|
|
"_get_current_state_for_key"
|
|
]
|
|
get_invited_rooms_for_user = RoomMemberStore.__dict__[
|
|
"get_invited_rooms_for_user"
|
|
]
|
|
get_unread_event_push_actions_by_room_for_user = (
|
|
EventPushActionsStore.__dict__["get_unread_event_push_actions_by_room_for_user"]
|
|
)
|
|
_get_state_group_for_events = (
|
|
StateStore.__dict__["_get_state_group_for_events"]
|
|
)
|
|
_get_state_group_for_event = (
|
|
StateStore.__dict__["_get_state_group_for_event"]
|
|
)
|
|
_get_state_groups_from_groups = (
|
|
StateStore.__dict__["_get_state_groups_from_groups"]
|
|
)
|
|
_get_state_group_from_group = (
|
|
StateStore.__dict__["_get_state_group_from_group"]
|
|
)
|
|
get_recent_event_ids_for_room = (
|
|
StreamStore.__dict__["get_recent_event_ids_for_room"]
|
|
)
|
|
|
|
get_unread_push_actions_for_user_in_range_for_http = (
|
|
DataStore.get_unread_push_actions_for_user_in_range_for_http.__func__
|
|
)
|
|
get_unread_push_actions_for_user_in_range_for_email = (
|
|
DataStore.get_unread_push_actions_for_user_in_range_for_email.__func__
|
|
)
|
|
get_push_action_users_in_range = (
|
|
DataStore.get_push_action_users_in_range.__func__
|
|
)
|
|
get_event = DataStore.get_event.__func__
|
|
get_events = DataStore.get_events.__func__
|
|
get_current_state = DataStore.get_current_state.__func__
|
|
get_current_state_for_key = DataStore.get_current_state_for_key.__func__
|
|
get_rooms_for_user_where_membership_is = (
|
|
DataStore.get_rooms_for_user_where_membership_is.__func__
|
|
)
|
|
get_membership_changes_for_user = (
|
|
DataStore.get_membership_changes_for_user.__func__
|
|
)
|
|
get_room_events_max_id = DataStore.get_room_events_max_id.__func__
|
|
get_room_events_stream_for_room = (
|
|
DataStore.get_room_events_stream_for_room.__func__
|
|
)
|
|
get_events_around = DataStore.get_events_around.__func__
|
|
get_state_for_event = DataStore.get_state_for_event.__func__
|
|
get_state_for_events = DataStore.get_state_for_events.__func__
|
|
get_state_groups = DataStore.get_state_groups.__func__
|
|
get_recent_events_for_room = DataStore.get_recent_events_for_room.__func__
|
|
get_room_events_stream_for_rooms = (
|
|
DataStore.get_room_events_stream_for_rooms.__func__
|
|
)
|
|
get_stream_token_for_event = DataStore.get_stream_token_for_event.__func__
|
|
|
|
_set_before_and_after = staticmethod(DataStore._set_before_and_after)
|
|
|
|
_get_events = DataStore._get_events.__func__
|
|
_get_events_from_cache = DataStore._get_events_from_cache.__func__
|
|
|
|
_invalidate_get_event_cache = DataStore._invalidate_get_event_cache.__func__
|
|
_enqueue_events = DataStore._enqueue_events.__func__
|
|
_do_fetch = DataStore._do_fetch.__func__
|
|
_fetch_event_rows = DataStore._fetch_event_rows.__func__
|
|
_get_event_from_row = DataStore._get_event_from_row.__func__
|
|
_get_rooms_for_user_where_membership_is_txn = (
|
|
DataStore._get_rooms_for_user_where_membership_is_txn.__func__
|
|
)
|
|
_get_members_rows_txn = DataStore._get_members_rows_txn.__func__
|
|
_get_state_for_groups = DataStore._get_state_for_groups.__func__
|
|
_get_all_state_from_cache = DataStore._get_all_state_from_cache.__func__
|
|
_get_events_around_txn = DataStore._get_events_around_txn.__func__
|
|
_get_some_state_from_cache = DataStore._get_some_state_from_cache.__func__
|
|
|
|
get_backfill_events = DataStore.get_backfill_events.__func__
|
|
_get_backfill_events = DataStore._get_backfill_events.__func__
|
|
get_missing_events = DataStore.get_missing_events.__func__
|
|
_get_missing_events = DataStore._get_missing_events.__func__
|
|
|
|
get_auth_chain = DataStore.get_auth_chain.__func__
|
|
get_auth_chain_ids = DataStore.get_auth_chain_ids.__func__
|
|
_get_auth_chain_ids_txn = DataStore._get_auth_chain_ids_txn.__func__
|
|
|
|
def stream_positions(self):
|
|
result = super(SlavedEventStore, self).stream_positions()
|
|
result["events"] = self._stream_id_gen.get_current_token()
|
|
result["backfill"] = -self._backfill_id_gen.get_current_token()
|
|
return result
|
|
|
|
def process_replication(self, result):
|
|
state_resets = set(
|
|
r[0] for r in result.get("state_resets", {"rows": []})["rows"]
|
|
)
|
|
|
|
stream = result.get("events")
|
|
if stream:
|
|
self._stream_id_gen.advance(int(stream["position"]))
|
|
for row in stream["rows"]:
|
|
self._process_replication_row(
|
|
row, backfilled=False, state_resets=state_resets
|
|
)
|
|
|
|
stream = result.get("backfill")
|
|
if stream:
|
|
self._backfill_id_gen.advance(-int(stream["position"]))
|
|
for row in stream["rows"]:
|
|
self._process_replication_row(
|
|
row, backfilled=True, state_resets=state_resets
|
|
)
|
|
|
|
stream = result.get("forward_ex_outliers")
|
|
if stream:
|
|
self._stream_id_gen.advance(int(stream["position"]))
|
|
for row in stream["rows"]:
|
|
event_id = row[1]
|
|
self._invalidate_get_event_cache(event_id)
|
|
|
|
stream = result.get("backward_ex_outliers")
|
|
if stream:
|
|
self._backfill_id_gen.advance(-int(stream["position"]))
|
|
for row in stream["rows"]:
|
|
event_id = row[1]
|
|
self._invalidate_get_event_cache(event_id)
|
|
|
|
return super(SlavedEventStore, self).process_replication(result)
|
|
|
|
def _process_replication_row(self, row, backfilled, state_resets):
|
|
position = row[0]
|
|
internal = json.loads(row[1])
|
|
event_json = json.loads(row[2])
|
|
event = FrozenEvent(event_json, internal_metadata_dict=internal)
|
|
self.invalidate_caches_for_event(
|
|
event, backfilled, reset_state=position in state_resets
|
|
)
|
|
|
|
def invalidate_caches_for_event(self, event, backfilled, reset_state):
|
|
if reset_state:
|
|
self._get_current_state_for_key.invalidate_all()
|
|
self.get_rooms_for_user.invalidate_all()
|
|
self.get_users_in_room.invalidate((event.room_id,))
|
|
# self.get_joined_hosts_for_room.invalidate((event.room_id,))
|
|
|
|
self._invalidate_get_event_cache(event.event_id)
|
|
|
|
self.get_latest_event_ids_in_room.invalidate((event.room_id,))
|
|
|
|
self.get_unread_event_push_actions_by_room_for_user.invalidate_many(
|
|
(event.room_id,)
|
|
)
|
|
|
|
if not backfilled:
|
|
self._events_stream_cache.entity_has_changed(
|
|
event.room_id, event.internal_metadata.stream_ordering
|
|
)
|
|
|
|
# self.get_unread_event_push_actions_by_room_for_user.invalidate_many(
|
|
# (event.room_id,)
|
|
# )
|
|
|
|
if event.type == EventTypes.Redaction:
|
|
self._invalidate_get_event_cache(event.redacts)
|
|
|
|
if event.type == EventTypes.Member:
|
|
self.get_rooms_for_user.invalidate((event.state_key,))
|
|
# self.get_joined_hosts_for_room.invalidate((event.room_id,))
|
|
self.get_users_in_room.invalidate((event.room_id,))
|
|
self._membership_stream_cache.entity_has_changed(
|
|
event.state_key, event.internal_metadata.stream_ordering
|
|
)
|
|
self.get_invited_rooms_for_user.invalidate((event.state_key,))
|
|
|
|
if not event.is_state():
|
|
return
|
|
|
|
if backfilled:
|
|
return
|
|
|
|
if (not event.internal_metadata.is_invite_from_remote()
|
|
and event.internal_metadata.is_outlier()):
|
|
return
|
|
|
|
self._get_current_state_for_key.invalidate((
|
|
event.room_id, event.type, event.state_key
|
|
))
|