diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index 2b8aa9443d..e232908e05 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
@@ -492,7 +494,7 @@ 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 +920,8 @@ 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+ # invite rejections and rescinded knocks that we have generated ourselves.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:
@@ -1125,6 +1127,13 @@ 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,
|