diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index 9dfeab09cd..f3694e0973 100644
--- a/synapse/handlers/message.py
+++ b/synapse/handlers/message.py
@@ -1,7 +1,8 @@
# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2017-2018 New Vector Ltd
-# Copyright 2019 The Matrix.org Foundation C.I.C.
+# Copyright 2019-2020 The Matrix.org Foundation C.I.C.
+# Copyrignt 2020 Sorunome
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@@ -40,6 +41,7 @@ from synapse.api.errors import (
)
from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, RoomVersions
from synapse.api.urls import ConsentURIBuilder
+from synapse.config.api import DEFAULT_ROOM_STATE_TYPES
from synapse.events import EventBase
from synapse.events.builder import EventBuilder
from synapse.events.snapshot import EventContext
@@ -432,6 +434,8 @@ class EventCreationHandler:
self._ephemeral_events_enabled = hs.config.enable_ephemeral_messages
+ self._external_cache = hs.get_external_cache()
+
async def create_event(
self,
requester: Requester,
@@ -492,7 +496,7 @@ class EventCreationHandler:
membership = builder.content.get("membership", None)
target = UserID.from_string(builder.state_key)
- if membership in {Membership.JOIN, Membership.INVITE}:
+ if membership in {Membership.JOIN, Membership.INVITE, Membership.KNOCK}:
# If event doesn't include a display name, add one.
profile = self.profile_handler
content = builder.content
@@ -918,8 +922,8 @@ class EventCreationHandler:
room_version = await self.store.get_room_version_id(event.room_id)
if event.internal_metadata.is_out_of_band_membership():
- # the only sort of out-of-band-membership events we expect to see here
- # are invite rejections we have generated ourselves.
+ # the only sort of out-of-band-membership events we expect to see here are
+ # invite rejections and rescinded knocks that we have generated ourselves.
assert event.type == EventTypes.Member
assert event.content["membership"] == Membership.LEAVE
else:
@@ -939,6 +943,8 @@ class EventCreationHandler:
await self.action_generator.handle_push_actions_for_event(event, context)
+ await self.cache_joined_hosts_for_event(event)
+
try:
# If we're a worker we need to hit out to the master.
writer_instance = self._events_shard_config.get_instance(event.room_id)
@@ -978,6 +984,44 @@ class EventCreationHandler:
await self.store.remove_push_actions_from_staging(event.event_id)
raise
+ async def cache_joined_hosts_for_event(self, event: EventBase) -> None:
+ """Precalculate the joined hosts at the event, when using Redis, so that
+ external federation senders don't have to recalculate it themselves.
+ """
+
+ if not self._external_cache.is_enabled():
+ return
+
+ # We actually store two mappings, event ID -> prev state group,
+ # state group -> joined hosts, which is much more space efficient
+ # than event ID -> joined hosts.
+ #
+ # Note: We have to cache event ID -> prev state group, as we don't
+ # store that in the DB.
+ #
+ # Note: We always set the state group -> joined hosts cache, even if
+ # we already set it, so that the expiry time is reset.
+
+ state_entry = await self.state.resolve_state_groups_for_events(
+ event.room_id, event_ids=event.prev_event_ids()
+ )
+
+ if state_entry.state_group:
+ joined_hosts = await self.store.get_joined_hosts(event.room_id, state_entry)
+
+ await self._external_cache.set(
+ "event_to_prev_state_group",
+ event.event_id,
+ state_entry.state_group,
+ expiry_ms=60 * 60 * 1000,
+ )
+ await self._external_cache.set(
+ "get_joined_hosts",
+ str(state_entry.state_group),
+ list(joined_hosts),
+ expiry_ms=60 * 60 * 1000,
+ )
+
async def _validate_canonical_alias(
self, directory_handler, room_alias_str: str, expected_room_id: str
) -> None:
@@ -1125,6 +1169,13 @@ class EventCreationHandler:
# TODO: Make sure the signatures actually are correct.
event.signatures.update(returned_invite.signatures)
+ if event.content["membership"] == Membership.KNOCK:
+ event.unsigned[
+ "knock_room_state"
+ ] = await self.store.get_stripped_room_state_from_event_context(
+ context, DEFAULT_ROOM_STATE_TYPES,
+ )
+
if event.type == EventTypes.Redaction:
original_event = await self.store.get_event(
event.redacts,
|
