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https://mau.dev/maunium/synapse.git
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![Mark Haines](/assets/img/avatar_default.png)
Move the checks for whether an event is new state inside persist event itself. This was harder than expected because there wasn't enough information passed to persist event to correctly handle invites from remote servers for new rooms.
1220 lines
43 KiB
Python
1220 lines
43 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from ._base import SQLBaseStore, _RollbackButIsFineException
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from twisted.internet import defer, reactor
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from synapse.events import FrozenEvent, USE_FROZEN_DICTS
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from synapse.events.utils import prune_event
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from synapse.util.logcontext import preserve_fn, PreserveLoggingContext
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from synapse.util.logutils import log_function
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from synapse.api.constants import EventTypes
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from canonicaljson import encode_canonical_json
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from contextlib import contextmanager
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from collections import namedtuple
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import logging
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import math
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import ujson as json
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logger = logging.getLogger(__name__)
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def encode_json(json_object):
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if USE_FROZEN_DICTS:
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# ujson doesn't like frozen_dicts
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return encode_canonical_json(json_object)
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else:
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return json.dumps(json_object, ensure_ascii=False)
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# These values are used in the `enqueus_event` and `_do_fetch` methods to
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# control how we batch/bulk fetch events from the database.
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# The values are plucked out of thing air to make initial sync run faster
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# on jki.re
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# TODO: Make these configurable.
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EVENT_QUEUE_THREADS = 3 # Max number of threads that will fetch events
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EVENT_QUEUE_ITERATIONS = 3 # No. times we block waiting for requests for events
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EVENT_QUEUE_TIMEOUT_S = 0.1 # Timeout when waiting for requests for events
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class EventsStore(SQLBaseStore):
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EVENT_ORIGIN_SERVER_TS_NAME = "event_origin_server_ts"
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def __init__(self, hs):
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super(EventsStore, self).__init__(hs)
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self.register_background_update_handler(
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self.EVENT_ORIGIN_SERVER_TS_NAME, self._background_reindex_origin_server_ts
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)
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@defer.inlineCallbacks
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def persist_events(self, events_and_contexts, backfilled=False):
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if not events_and_contexts:
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return
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if backfilled:
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start = self.min_stream_token - 1
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self.min_stream_token -= len(events_and_contexts) + 1
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stream_orderings = range(start, self.min_stream_token, -1)
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@contextmanager
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def stream_ordering_manager():
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yield stream_orderings
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stream_ordering_manager = stream_ordering_manager()
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else:
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stream_ordering_manager = self._stream_id_gen.get_next_mult(
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len(events_and_contexts)
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)
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state_group_id_manager = self._state_groups_id_gen.get_next_mult(
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len(events_and_contexts)
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)
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with stream_ordering_manager as stream_orderings:
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with state_group_id_manager as state_group_ids:
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for (event, context), stream, state_group_id in zip(
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events_and_contexts, stream_orderings, state_group_ids
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):
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event.internal_metadata.stream_ordering = stream
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# Assign a state group_id in case a new id is needed for
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# this context. In theory we only need to assign this
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# for contexts that have current_state and aren't outliers
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# but that make the code more complicated. Assigning an ID
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# per event only causes the state_group_ids to grow as fast
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# as the stream_ordering so in practise shouldn't be a problem.
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context.new_state_group_id = state_group_id
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chunks = [
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events_and_contexts[x:x + 100]
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for x in xrange(0, len(events_and_contexts), 100)
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]
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for chunk in chunks:
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# We can't easily parallelize these since different chunks
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# might contain the same event. :(
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yield self.runInteraction(
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"persist_events",
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self._persist_events_txn,
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events_and_contexts=chunk,
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backfilled=backfilled,
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)
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@defer.inlineCallbacks
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@log_function
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def persist_event(self, event, context, current_state=None):
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try:
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with self._stream_id_gen.get_next() as stream_ordering:
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with self._state_groups_id_gen.get_next() as state_group_id:
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event.internal_metadata.stream_ordering = stream_ordering
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context.new_state_group_id = state_group_id
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yield self.runInteraction(
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"persist_event",
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self._persist_event_txn,
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event=event,
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context=context,
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current_state=current_state,
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)
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except _RollbackButIsFineException:
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pass
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max_persisted_id = yield self._stream_id_gen.get_max_token()
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defer.returnValue((stream_ordering, max_persisted_id))
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@defer.inlineCallbacks
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def get_event(self, event_id, check_redacted=True,
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get_prev_content=False, allow_rejected=False,
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allow_none=False):
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"""Get an event from the database by event_id.
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Args:
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event_id (str): The event_id of the event to fetch
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check_redacted (bool): If True, check if event has been redacted
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and redact it.
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get_prev_content (bool): If True and event is a state event,
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include the previous states content in the unsigned field.
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allow_rejected (bool): If True return rejected events.
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allow_none (bool): If True, return None if no event found, if
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False throw an exception.
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Returns:
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Deferred : A FrozenEvent.
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"""
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events = yield self._get_events(
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[event_id],
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check_redacted=check_redacted,
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get_prev_content=get_prev_content,
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allow_rejected=allow_rejected,
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)
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if not events and not allow_none:
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raise RuntimeError("Could not find event %s" % (event_id,))
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defer.returnValue(events[0] if events else None)
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@defer.inlineCallbacks
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def get_events(self, event_ids, check_redacted=True,
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get_prev_content=False, allow_rejected=False):
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"""Get events from the database
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Args:
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event_ids (list): The event_ids of the events to fetch
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check_redacted (bool): If True, check if event has been redacted
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and redact it.
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get_prev_content (bool): If True and event is a state event,
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include the previous states content in the unsigned field.
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allow_rejected (bool): If True return rejected events.
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Returns:
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Deferred : Dict from event_id to event.
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"""
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events = yield self._get_events(
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event_ids,
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check_redacted=check_redacted,
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get_prev_content=get_prev_content,
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allow_rejected=allow_rejected,
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)
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defer.returnValue({e.event_id: e for e in events})
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@log_function
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def _persist_event_txn(self, txn, event, context, current_state):
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# We purposefully do this first since if we include a `current_state`
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# key, we *want* to update the `current_state_events` table
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if current_state:
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txn.call_after(self._get_current_state_for_key.invalidate_all)
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txn.call_after(self.get_rooms_for_user.invalidate_all)
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txn.call_after(self.get_users_in_room.invalidate, (event.room_id,))
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txn.call_after(self.get_joined_hosts_for_room.invalidate, (event.room_id,))
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txn.call_after(self.get_room_name_and_aliases, event.room_id)
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# Add an entry to the current_state_resets table to record the point
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# where we clobbered the current state
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stream_order = event.internal_metadata.stream_ordering
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self._simple_insert_txn(
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txn,
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table="current_state_resets",
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values={"event_stream_ordering": stream_order}
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)
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self._simple_delete_txn(
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txn,
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table="current_state_events",
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keyvalues={"room_id": event.room_id},
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)
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for s in current_state:
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self._simple_insert_txn(
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txn,
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"current_state_events",
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{
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"event_id": s.event_id,
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"room_id": s.room_id,
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"type": s.type,
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"state_key": s.state_key,
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}
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)
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return self._persist_events_txn(
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txn,
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[(event, context)],
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backfilled=False,
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)
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@log_function
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def _persist_events_txn(self, txn, events_and_contexts, backfilled):
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depth_updates = {}
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for event, context in events_and_contexts:
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# Remove the any existing cache entries for the event_ids
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txn.call_after(self._invalidate_get_event_cache, event.event_id)
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if not backfilled:
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txn.call_after(
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self._events_stream_cache.entity_has_changed,
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event.room_id, event.internal_metadata.stream_ordering,
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)
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if not event.internal_metadata.is_outlier():
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depth_updates[event.room_id] = max(
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event.depth, depth_updates.get(event.room_id, event.depth)
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)
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if context.push_actions:
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self._set_push_actions_for_event_and_users_txn(
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txn, event, context.push_actions
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)
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if event.type == EventTypes.Redaction and event.redacts is not None:
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self._remove_push_actions_for_event_id_txn(
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txn, event.room_id, event.redacts
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)
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for room_id, depth in depth_updates.items():
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self._update_min_depth_for_room_txn(txn, room_id, depth)
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txn.execute(
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"SELECT event_id, outlier FROM events WHERE event_id in (%s)" % (
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",".join(["?"] * len(events_and_contexts)),
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),
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[event.event_id for event, _ in events_and_contexts]
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)
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have_persisted = {
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event_id: outlier
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for event_id, outlier in txn.fetchall()
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}
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event_map = {}
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to_remove = set()
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for event, context in events_and_contexts:
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# Handle the case of the list including the same event multiple
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# times. The tricky thing here is when they differ by whether
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# they are an outlier.
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if event.event_id in event_map:
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other = event_map[event.event_id]
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if not other.internal_metadata.is_outlier():
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to_remove.add(event)
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continue
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elif not event.internal_metadata.is_outlier():
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to_remove.add(event)
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continue
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else:
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to_remove.add(other)
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event_map[event.event_id] = event
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if event.event_id not in have_persisted:
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continue
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to_remove.add(event)
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outlier_persisted = have_persisted[event.event_id]
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if not event.internal_metadata.is_outlier() and outlier_persisted:
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self._store_mult_state_groups_txn(txn, ((event, context),))
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metadata_json = encode_json(
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event.internal_metadata.get_dict()
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).decode("UTF-8")
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sql = (
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"UPDATE event_json SET internal_metadata = ?"
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" WHERE event_id = ?"
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)
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txn.execute(
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sql,
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(metadata_json, event.event_id,)
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)
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stream_order = event.internal_metadata.stream_ordering
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state_group_id = context.state_group or context.new_state_group_id
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self._simple_insert_txn(
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txn,
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table="ex_outlier_stream",
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values={
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"event_stream_ordering": stream_order,
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"event_id": event.event_id,
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"state_group": state_group_id,
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}
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)
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sql = (
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"UPDATE events SET outlier = ?"
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" WHERE event_id = ?"
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)
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txn.execute(
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sql,
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(False, event.event_id,)
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)
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self._update_extremeties(txn, [event])
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events_and_contexts = [
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ec for ec in events_and_contexts if ec[0] not in to_remove
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]
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if not events_and_contexts:
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return
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self._store_mult_state_groups_txn(txn, events_and_contexts)
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self._handle_mult_prev_events(
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txn,
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events=[event for event, _ in events_and_contexts],
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)
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for event, _ in events_and_contexts:
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if event.type == EventTypes.Name:
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self._store_room_name_txn(txn, event)
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elif event.type == EventTypes.Topic:
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self._store_room_topic_txn(txn, event)
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elif event.type == EventTypes.Message:
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self._store_room_message_txn(txn, event)
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elif event.type == EventTypes.Redaction:
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self._store_redaction(txn, event)
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elif event.type == EventTypes.RoomHistoryVisibility:
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self._store_history_visibility_txn(txn, event)
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elif event.type == EventTypes.GuestAccess:
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self._store_guest_access_txn(txn, event)
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self._store_room_members_txn(
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txn,
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[
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event
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for event, _ in events_and_contexts
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if event.type == EventTypes.Member
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]
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)
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def event_dict(event):
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return {
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k: v
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for k, v in event.get_dict().items()
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if k not in [
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"redacted",
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"redacted_because",
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]
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}
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self._simple_insert_many_txn(
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txn,
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table="event_json",
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values=[
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{
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"event_id": event.event_id,
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"room_id": event.room_id,
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"internal_metadata": encode_json(
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event.internal_metadata.get_dict()
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).decode("UTF-8"),
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"json": encode_json(event_dict(event)).decode("UTF-8"),
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}
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for event, _ in events_and_contexts
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],
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)
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self._simple_insert_many_txn(
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txn,
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table="events",
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values=[
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{
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"stream_ordering": event.internal_metadata.stream_ordering,
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"topological_ordering": event.depth,
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"depth": event.depth,
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"event_id": event.event_id,
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"room_id": event.room_id,
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"type": event.type,
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"processed": True,
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"outlier": event.internal_metadata.is_outlier(),
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"content": encode_json(event.content).decode("UTF-8"),
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"origin_server_ts": int(event.origin_server_ts),
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}
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for event, _ in events_and_contexts
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],
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)
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if context.rejected:
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self._store_rejections_txn(
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txn, event.event_id, context.rejected
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)
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self._simple_insert_many_txn(
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txn,
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table="event_auth",
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values=[
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{
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"event_id": event.event_id,
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"room_id": event.room_id,
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"auth_id": auth_id,
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}
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for event, _ in events_and_contexts
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for auth_id, _ in event.auth_events
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],
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)
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self._store_event_reference_hashes_txn(
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txn, [event for event, _ in events_and_contexts]
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)
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state_events_and_contexts = [
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ec for ec in events_and_contexts if ec[0].is_state()
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]
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state_values = []
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for event, context in state_events_and_contexts:
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vals = {
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"event_id": event.event_id,
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"room_id": event.room_id,
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"type": event.type,
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"state_key": event.state_key,
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}
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# TODO: How does this work with backfilling?
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if hasattr(event, "replaces_state"):
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vals["prev_state"] = event.replaces_state
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state_values.append(vals)
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self._simple_insert_many_txn(
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txn,
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table="state_events",
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values=state_values,
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)
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self._simple_insert_many_txn(
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txn,
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table="event_edges",
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values=[
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{
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"event_id": event.event_id,
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"prev_event_id": prev_id,
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"room_id": event.room_id,
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"is_state": True,
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}
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for event, _ in state_events_and_contexts
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for prev_id, _ in event.prev_state
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],
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)
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for event, _ in state_events_and_contexts:
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if backfilled:
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# Backfilled events come before the current state so shouldn't
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# clobber it.
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continue
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|
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if (not event.internal_metadata.is_invite_from_remote()
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and event.internal_metadata.is_outlier()):
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# Outlier events generally shouldn't clobber the current state.
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# However invites from remote severs for rooms we aren't in
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# are a bit special: they don't come with any associated
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# state so are technically an outlier, however all the
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# client-facing code assumes that they are in the current
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# state table so we insert the event anyway.
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continue
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|
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if context.rejected:
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# If the event failed it's auth checks then it shouldn't
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# clobbler the current state.
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continue
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txn.call_after(
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self._get_current_state_for_key.invalidate,
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(event.room_id, event.type, event.state_key,)
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)
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|
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if event.type in [EventTypes.Name, EventTypes.Aliases]:
|
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txn.call_after(
|
|
self.get_room_name_and_aliases.invalidate,
|
|
(event.room_id,)
|
|
)
|
|
|
|
self._simple_upsert_txn(
|
|
txn,
|
|
"current_state_events",
|
|
keyvalues={
|
|
"room_id": event.room_id,
|
|
"type": event.type,
|
|
"state_key": event.state_key,
|
|
},
|
|
values={
|
|
"event_id": event.event_id,
|
|
}
|
|
)
|
|
|
|
return
|
|
|
|
def _store_redaction(self, txn, event):
|
|
# invalidate the cache for the redacted event
|
|
txn.call_after(self._invalidate_get_event_cache, event.redacts)
|
|
txn.execute(
|
|
"INSERT INTO redactions (event_id, redacts) VALUES (?,?)",
|
|
(event.event_id, event.redacts)
|
|
)
|
|
|
|
def have_events(self, event_ids):
|
|
"""Given a list of event ids, check if we have already processed them.
|
|
|
|
Returns:
|
|
dict: Has an entry for each event id we already have seen. Maps to
|
|
the rejected reason string if we rejected the event, else maps to
|
|
None.
|
|
"""
|
|
if not event_ids:
|
|
return defer.succeed({})
|
|
|
|
def f(txn):
|
|
sql = (
|
|
"SELECT e.event_id, reason FROM events as e "
|
|
"LEFT JOIN rejections as r ON e.event_id = r.event_id "
|
|
"WHERE e.event_id = ?"
|
|
)
|
|
|
|
res = {}
|
|
for event_id in event_ids:
|
|
txn.execute(sql, (event_id,))
|
|
row = txn.fetchone()
|
|
if row:
|
|
_, rejected = row
|
|
res[event_id] = rejected
|
|
|
|
return res
|
|
|
|
return self.runInteraction(
|
|
"have_events", f,
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def _get_events(self, event_ids, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False):
|
|
if not event_ids:
|
|
defer.returnValue([])
|
|
|
|
event_id_list = event_ids
|
|
event_ids = set(event_ids)
|
|
|
|
event_map = self._get_events_from_cache(
|
|
event_ids,
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
missing_events_ids = [e for e in event_ids if e not in event_map]
|
|
|
|
if missing_events_ids:
|
|
missing_events = yield self._enqueue_events(
|
|
missing_events_ids,
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
event_map.update(missing_events)
|
|
|
|
defer.returnValue([
|
|
event_map[e_id] for e_id in event_id_list
|
|
if e_id in event_map and event_map[e_id]
|
|
])
|
|
|
|
def _get_events_txn(self, txn, event_ids, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False):
|
|
if not event_ids:
|
|
return []
|
|
|
|
event_map = self._get_events_from_cache(
|
|
event_ids,
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
missing_events_ids = [e for e in event_ids if e not in event_map]
|
|
|
|
if not missing_events_ids:
|
|
return [
|
|
event_map[e_id] for e_id in event_ids
|
|
if e_id in event_map and event_map[e_id]
|
|
]
|
|
|
|
missing_events = self._fetch_events_txn(
|
|
txn,
|
|
missing_events_ids,
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
event_map.update(missing_events)
|
|
|
|
return [
|
|
event_map[e_id] for e_id in event_ids
|
|
if e_id in event_map and event_map[e_id]
|
|
]
|
|
|
|
def _invalidate_get_event_cache(self, event_id):
|
|
for check_redacted in (False, True):
|
|
for get_prev_content in (False, True):
|
|
self._get_event_cache.invalidate(
|
|
(event_id, check_redacted, get_prev_content)
|
|
)
|
|
|
|
def _get_event_txn(self, txn, event_id, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False):
|
|
|
|
events = self._get_events_txn(
|
|
txn, [event_id],
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
return events[0] if events else None
|
|
|
|
def _get_events_from_cache(self, events, check_redacted, get_prev_content,
|
|
allow_rejected):
|
|
event_map = {}
|
|
|
|
for event_id in events:
|
|
try:
|
|
ret = self._get_event_cache.get(
|
|
(event_id, check_redacted, get_prev_content,)
|
|
)
|
|
|
|
if allow_rejected or not ret.rejected_reason:
|
|
event_map[event_id] = ret
|
|
else:
|
|
event_map[event_id] = None
|
|
except KeyError:
|
|
pass
|
|
|
|
return event_map
|
|
|
|
def _do_fetch(self, conn):
|
|
"""Takes a database connection and waits for requests for events from
|
|
the _event_fetch_list queue.
|
|
"""
|
|
event_list = []
|
|
i = 0
|
|
while True:
|
|
try:
|
|
with self._event_fetch_lock:
|
|
event_list = self._event_fetch_list
|
|
self._event_fetch_list = []
|
|
|
|
if not event_list:
|
|
single_threaded = self.database_engine.single_threaded
|
|
if single_threaded or i > EVENT_QUEUE_ITERATIONS:
|
|
self._event_fetch_ongoing -= 1
|
|
return
|
|
else:
|
|
self._event_fetch_lock.wait(EVENT_QUEUE_TIMEOUT_S)
|
|
i += 1
|
|
continue
|
|
i = 0
|
|
|
|
event_id_lists = zip(*event_list)[0]
|
|
event_ids = [
|
|
item for sublist in event_id_lists for item in sublist
|
|
]
|
|
|
|
rows = self._new_transaction(
|
|
conn, "do_fetch", [], None, self._fetch_event_rows, event_ids
|
|
)
|
|
|
|
row_dict = {
|
|
r["event_id"]: r
|
|
for r in rows
|
|
}
|
|
|
|
# We only want to resolve deferreds from the main thread
|
|
def fire(lst, res):
|
|
for ids, d in lst:
|
|
if not d.called:
|
|
try:
|
|
with PreserveLoggingContext():
|
|
d.callback([
|
|
res[i]
|
|
for i in ids
|
|
if i in res
|
|
])
|
|
except:
|
|
logger.exception("Failed to callback")
|
|
with PreserveLoggingContext():
|
|
reactor.callFromThread(fire, event_list, row_dict)
|
|
except Exception as e:
|
|
logger.exception("do_fetch")
|
|
|
|
# We only want to resolve deferreds from the main thread
|
|
def fire(evs):
|
|
for _, d in evs:
|
|
if not d.called:
|
|
with PreserveLoggingContext():
|
|
d.errback(e)
|
|
|
|
if event_list:
|
|
with PreserveLoggingContext():
|
|
reactor.callFromThread(fire, event_list)
|
|
|
|
@defer.inlineCallbacks
|
|
def _enqueue_events(self, events, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False):
|
|
"""Fetches events from the database using the _event_fetch_list. This
|
|
allows batch and bulk fetching of events - it allows us to fetch events
|
|
without having to create a new transaction for each request for events.
|
|
"""
|
|
if not events:
|
|
defer.returnValue({})
|
|
|
|
events_d = defer.Deferred()
|
|
with self._event_fetch_lock:
|
|
self._event_fetch_list.append(
|
|
(events, events_d)
|
|
)
|
|
|
|
self._event_fetch_lock.notify()
|
|
|
|
if self._event_fetch_ongoing < EVENT_QUEUE_THREADS:
|
|
self._event_fetch_ongoing += 1
|
|
should_start = True
|
|
else:
|
|
should_start = False
|
|
|
|
if should_start:
|
|
with PreserveLoggingContext():
|
|
self.runWithConnection(
|
|
self._do_fetch
|
|
)
|
|
|
|
with PreserveLoggingContext():
|
|
rows = yield events_d
|
|
|
|
if not allow_rejected:
|
|
rows[:] = [r for r in rows if not r["rejects"]]
|
|
|
|
res = yield defer.gatherResults(
|
|
[
|
|
preserve_fn(self._get_event_from_row)(
|
|
row["internal_metadata"], row["json"], row["redacts"],
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
rejected_reason=row["rejects"],
|
|
)
|
|
for row in rows
|
|
],
|
|
consumeErrors=True
|
|
)
|
|
|
|
defer.returnValue({
|
|
e.event_id: e
|
|
for e in res if e
|
|
})
|
|
|
|
def _fetch_event_rows(self, txn, events):
|
|
rows = []
|
|
N = 200
|
|
for i in range(1 + len(events) / N):
|
|
evs = events[i * N:(i + 1) * N]
|
|
if not evs:
|
|
break
|
|
|
|
sql = (
|
|
"SELECT "
|
|
" e.event_id as event_id, "
|
|
" e.internal_metadata,"
|
|
" e.json,"
|
|
" r.redacts as redacts,"
|
|
" rej.event_id as rejects "
|
|
" FROM event_json as e"
|
|
" LEFT JOIN rejections as rej USING (event_id)"
|
|
" LEFT JOIN redactions as r ON e.event_id = r.redacts"
|
|
" WHERE e.event_id IN (%s)"
|
|
) % (",".join(["?"] * len(evs)),)
|
|
|
|
txn.execute(sql, evs)
|
|
rows.extend(self.cursor_to_dict(txn))
|
|
|
|
return rows
|
|
|
|
def _fetch_events_txn(self, txn, events, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False):
|
|
if not events:
|
|
return {}
|
|
|
|
rows = self._fetch_event_rows(
|
|
txn, events,
|
|
)
|
|
|
|
if not allow_rejected:
|
|
rows[:] = [r for r in rows if not r["rejects"]]
|
|
|
|
res = [
|
|
self._get_event_from_row_txn(
|
|
txn,
|
|
row["internal_metadata"], row["json"], row["redacts"],
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
rejected_reason=row["rejects"],
|
|
)
|
|
for row in rows
|
|
]
|
|
|
|
return {
|
|
r.event_id: r
|
|
for r in res
|
|
}
|
|
|
|
@defer.inlineCallbacks
|
|
def _get_event_from_row(self, internal_metadata, js, redacted,
|
|
check_redacted=True, get_prev_content=False,
|
|
rejected_reason=None):
|
|
d = json.loads(js)
|
|
internal_metadata = json.loads(internal_metadata)
|
|
|
|
if rejected_reason:
|
|
rejected_reason = yield self._simple_select_one_onecol(
|
|
table="rejections",
|
|
keyvalues={"event_id": rejected_reason},
|
|
retcol="reason",
|
|
desc="_get_event_from_row",
|
|
)
|
|
|
|
ev = FrozenEvent(
|
|
d,
|
|
internal_metadata_dict=internal_metadata,
|
|
rejected_reason=rejected_reason,
|
|
)
|
|
|
|
if check_redacted and redacted:
|
|
ev = prune_event(ev)
|
|
|
|
redaction_id = yield self._simple_select_one_onecol(
|
|
table="redactions",
|
|
keyvalues={"redacts": ev.event_id},
|
|
retcol="event_id",
|
|
desc="_get_event_from_row",
|
|
)
|
|
|
|
ev.unsigned["redacted_by"] = redaction_id
|
|
# Get the redaction event.
|
|
|
|
because = yield self.get_event(
|
|
redaction_id,
|
|
check_redacted=False,
|
|
allow_none=True,
|
|
)
|
|
|
|
if because:
|
|
# It's fine to do add the event directly, since get_pdu_json
|
|
# will serialise this field correctly
|
|
ev.unsigned["redacted_because"] = because
|
|
|
|
if get_prev_content and "replaces_state" in ev.unsigned:
|
|
prev = yield self.get_event(
|
|
ev.unsigned["replaces_state"],
|
|
get_prev_content=False,
|
|
allow_none=True,
|
|
)
|
|
if prev:
|
|
ev.unsigned["prev_content"] = prev.content
|
|
ev.unsigned["prev_sender"] = prev.sender
|
|
|
|
self._get_event_cache.prefill(
|
|
(ev.event_id, check_redacted, get_prev_content), ev
|
|
)
|
|
|
|
defer.returnValue(ev)
|
|
|
|
def _get_event_from_row_txn(self, txn, internal_metadata, js, redacted,
|
|
check_redacted=True, get_prev_content=False,
|
|
rejected_reason=None):
|
|
d = json.loads(js)
|
|
internal_metadata = json.loads(internal_metadata)
|
|
|
|
if rejected_reason:
|
|
rejected_reason = self._simple_select_one_onecol_txn(
|
|
txn,
|
|
table="rejections",
|
|
keyvalues={"event_id": rejected_reason},
|
|
retcol="reason",
|
|
)
|
|
|
|
ev = FrozenEvent(
|
|
d,
|
|
internal_metadata_dict=internal_metadata,
|
|
rejected_reason=rejected_reason,
|
|
)
|
|
|
|
if check_redacted and redacted:
|
|
ev = prune_event(ev)
|
|
|
|
redaction_id = self._simple_select_one_onecol_txn(
|
|
txn,
|
|
table="redactions",
|
|
keyvalues={"redacts": ev.event_id},
|
|
retcol="event_id",
|
|
)
|
|
|
|
ev.unsigned["redacted_by"] = redaction_id
|
|
# Get the redaction event.
|
|
|
|
because = self._get_event_txn(
|
|
txn,
|
|
redaction_id,
|
|
check_redacted=False
|
|
)
|
|
|
|
if because:
|
|
ev.unsigned["redacted_because"] = because
|
|
|
|
if get_prev_content and "replaces_state" in ev.unsigned:
|
|
prev = self._get_event_txn(
|
|
txn,
|
|
ev.unsigned["replaces_state"],
|
|
get_prev_content=False,
|
|
)
|
|
if prev:
|
|
ev.unsigned["prev_content"] = prev.content
|
|
ev.unsigned["prev_sender"] = prev.sender
|
|
|
|
self._get_event_cache.prefill(
|
|
(ev.event_id, check_redacted, get_prev_content), ev
|
|
)
|
|
|
|
return ev
|
|
|
|
def _parse_events_txn(self, txn, rows):
|
|
event_ids = [r["event_id"] for r in rows]
|
|
|
|
return self._get_events_txn(txn, event_ids)
|
|
|
|
@defer.inlineCallbacks
|
|
def count_daily_messages(self):
|
|
"""
|
|
Returns an estimate of the number of messages sent in the last day.
|
|
|
|
If it has been significantly less or more than one day since the last
|
|
call to this function, it will return None.
|
|
"""
|
|
def _count_messages(txn):
|
|
now = self.hs.get_clock().time()
|
|
|
|
txn.execute(
|
|
"SELECT reported_stream_token, reported_time FROM stats_reporting"
|
|
)
|
|
last_reported = self.cursor_to_dict(txn)
|
|
|
|
txn.execute(
|
|
"SELECT stream_ordering"
|
|
" FROM events"
|
|
" ORDER BY stream_ordering DESC"
|
|
" LIMIT 1"
|
|
)
|
|
now_reporting = self.cursor_to_dict(txn)
|
|
if not now_reporting:
|
|
logger.info("Calculating daily messages skipped; no now_reporting")
|
|
return None
|
|
now_reporting = now_reporting[0]["stream_ordering"]
|
|
|
|
txn.execute("DELETE FROM stats_reporting")
|
|
txn.execute(
|
|
"INSERT INTO stats_reporting"
|
|
" (reported_stream_token, reported_time)"
|
|
" VALUES (?, ?)",
|
|
(now_reporting, now,)
|
|
)
|
|
|
|
if not last_reported:
|
|
logger.info("Calculating daily messages skipped; no last_reported")
|
|
return None
|
|
|
|
# Close enough to correct for our purposes.
|
|
yesterday = (now - 24 * 60 * 60)
|
|
since_yesterday_seconds = yesterday - last_reported[0]["reported_time"]
|
|
any_since_yesterday = math.fabs(since_yesterday_seconds) > 60 * 60
|
|
if any_since_yesterday:
|
|
logger.info(
|
|
"Calculating daily messages skipped; since_yesterday_seconds: %d" %
|
|
(since_yesterday_seconds,)
|
|
)
|
|
return None
|
|
|
|
txn.execute(
|
|
"SELECT COUNT(*) as messages"
|
|
" FROM events NATURAL JOIN event_json"
|
|
" WHERE json like '%m.room.message%'"
|
|
" AND stream_ordering > ?"
|
|
" AND stream_ordering <= ?",
|
|
(
|
|
last_reported[0]["reported_stream_token"],
|
|
now_reporting,
|
|
)
|
|
)
|
|
rows = self.cursor_to_dict(txn)
|
|
if not rows:
|
|
logger.info("Calculating daily messages skipped; messages count missing")
|
|
return None
|
|
return rows[0]["messages"]
|
|
|
|
ret = yield self.runInteraction("count_messages", _count_messages)
|
|
defer.returnValue(ret)
|
|
|
|
@defer.inlineCallbacks
|
|
def _background_reindex_origin_server_ts(self, progress, batch_size):
|
|
target_min_stream_id = progress["target_min_stream_id_inclusive"]
|
|
max_stream_id = progress["max_stream_id_exclusive"]
|
|
rows_inserted = progress.get("rows_inserted", 0)
|
|
|
|
INSERT_CLUMP_SIZE = 1000
|
|
|
|
def reindex_search_txn(txn):
|
|
sql = (
|
|
"SELECT stream_ordering, event_id FROM events"
|
|
" WHERE ? <= stream_ordering AND stream_ordering < ?"
|
|
" ORDER BY stream_ordering DESC"
|
|
" LIMIT ?"
|
|
)
|
|
|
|
txn.execute(sql, (target_min_stream_id, max_stream_id, batch_size))
|
|
|
|
rows = txn.fetchall()
|
|
if not rows:
|
|
return 0
|
|
|
|
min_stream_id = rows[-1][0]
|
|
event_ids = [row[1] for row in rows]
|
|
|
|
events = self._get_events_txn(txn, event_ids)
|
|
|
|
rows = []
|
|
for event in events:
|
|
try:
|
|
event_id = event.event_id
|
|
origin_server_ts = event.origin_server_ts
|
|
except (KeyError, AttributeError):
|
|
# If the event is missing a necessary field then
|
|
# skip over it.
|
|
continue
|
|
|
|
rows.append((origin_server_ts, event_id))
|
|
|
|
sql = (
|
|
"UPDATE events SET origin_server_ts = ? WHERE event_id = ?"
|
|
)
|
|
|
|
for index in range(0, len(rows), INSERT_CLUMP_SIZE):
|
|
clump = rows[index:index + INSERT_CLUMP_SIZE]
|
|
txn.executemany(sql, clump)
|
|
|
|
progress = {
|
|
"target_min_stream_id_inclusive": target_min_stream_id,
|
|
"max_stream_id_exclusive": min_stream_id,
|
|
"rows_inserted": rows_inserted + len(rows)
|
|
}
|
|
|
|
self._background_update_progress_txn(
|
|
txn, self.EVENT_ORIGIN_SERVER_TS_NAME, progress
|
|
)
|
|
|
|
return len(rows)
|
|
|
|
result = yield self.runInteraction(
|
|
self.EVENT_ORIGIN_SERVER_TS_NAME, reindex_search_txn
|
|
)
|
|
|
|
if not result:
|
|
yield self._end_background_update(self.EVENT_ORIGIN_SERVER_TS_NAME)
|
|
|
|
defer.returnValue(result)
|
|
|
|
def get_current_backfill_token(self):
|
|
"""The current minimum token that backfilled events have reached"""
|
|
|
|
# TODO: Fix race with the persit_event txn by using one of the
|
|
# stream id managers
|
|
return -self.min_stream_token
|
|
|
|
def get_all_new_events(self, last_backfill_id, last_forward_id,
|
|
current_backfill_id, current_forward_id, limit):
|
|
"""Get all the new events that have arrived at the server either as
|
|
new events or as backfilled events"""
|
|
def get_all_new_events_txn(txn):
|
|
sql = (
|
|
"SELECT e.stream_ordering, ej.internal_metadata, ej.json, eg.state_group"
|
|
" FROM events as e"
|
|
" JOIN event_json as ej"
|
|
" ON e.event_id = ej.event_id AND e.room_id = ej.room_id"
|
|
" LEFT JOIN event_to_state_groups as eg"
|
|
" ON e.event_id = eg.event_id"
|
|
" WHERE ? < e.stream_ordering AND e.stream_ordering <= ?"
|
|
" ORDER BY e.stream_ordering ASC"
|
|
" LIMIT ?"
|
|
)
|
|
if last_forward_id != current_forward_id:
|
|
txn.execute(sql, (last_forward_id, current_forward_id, limit))
|
|
new_forward_events = txn.fetchall()
|
|
|
|
if len(new_forward_events) == limit:
|
|
upper_bound = new_forward_events[-1][0]
|
|
else:
|
|
upper_bound = current_forward_id
|
|
|
|
sql = (
|
|
"SELECT -event_stream_ordering FROM current_state_resets"
|
|
" WHERE ? < event_stream_ordering"
|
|
" AND event_stream_ordering <= ?"
|
|
" ORDER BY event_stream_ordering ASC"
|
|
)
|
|
txn.execute(sql, (last_forward_id, upper_bound))
|
|
state_resets = txn.fetchall()
|
|
|
|
sql = (
|
|
"SELECT -event_stream_ordering, event_id, state_group"
|
|
" FROM ex_outlier_stream"
|
|
" WHERE ? > event_stream_ordering"
|
|
" AND event_stream_ordering >= ?"
|
|
" ORDER BY event_stream_ordering DESC"
|
|
)
|
|
txn.execute(sql, (last_forward_id, upper_bound))
|
|
forward_ex_outliers = txn.fetchall()
|
|
else:
|
|
new_forward_events = []
|
|
state_resets = []
|
|
forward_ex_outliers = []
|
|
|
|
sql = (
|
|
"SELECT -e.stream_ordering, ej.internal_metadata, ej.json,"
|
|
" eg.state_group"
|
|
" FROM events as e"
|
|
" JOIN event_json as ej"
|
|
" ON e.event_id = ej.event_id AND e.room_id = ej.room_id"
|
|
" LEFT JOIN event_to_state_groups as eg"
|
|
" ON e.event_id = eg.event_id"
|
|
" WHERE ? > e.stream_ordering AND e.stream_ordering >= ?"
|
|
" ORDER BY e.stream_ordering DESC"
|
|
" LIMIT ?"
|
|
)
|
|
if last_backfill_id != current_backfill_id:
|
|
txn.execute(sql, (-last_backfill_id, -current_backfill_id, limit))
|
|
new_backfill_events = txn.fetchall()
|
|
|
|
if len(new_backfill_events) == limit:
|
|
upper_bound = new_backfill_events[-1][0]
|
|
else:
|
|
upper_bound = current_backfill_id
|
|
|
|
sql = (
|
|
"SELECT -event_stream_ordering, event_id, state_group"
|
|
" FROM ex_outlier_stream"
|
|
" WHERE ? > event_stream_ordering"
|
|
" AND event_stream_ordering >= ?"
|
|
" ORDER BY event_stream_ordering DESC"
|
|
)
|
|
txn.execute(sql, (-last_backfill_id, -upper_bound))
|
|
backward_ex_outliers = txn.fetchall()
|
|
else:
|
|
new_backfill_events = []
|
|
backward_ex_outliers = []
|
|
|
|
return AllNewEventsResult(
|
|
new_forward_events, new_backfill_events,
|
|
forward_ex_outliers, backward_ex_outliers,
|
|
state_resets,
|
|
)
|
|
return self.runInteraction("get_all_new_events", get_all_new_events_txn)
|
|
|
|
|
|
AllNewEventsResult = namedtuple("AllNewEventsResult", [
|
|
"new_forward_events", "new_backfill_events",
|
|
"forward_ex_outliers", "backward_ex_outliers",
|
|
"state_resets"
|
|
])
|