Check for space membership during a remote join of a restricted room. (#9763)

When receiving a /send_join request for a room with join rules set to 'restricted',
check if the user is a member of the spaces defined in the 'allow' key of the join
rules.
    
This only applies to an experimental room version, as defined in MSC3083.

1 files changed, 5 insertions, 0 deletions

diff --git a/synapse/server.py b/synapse/server.py
index 95a2cd2e5d..045b8f3fca 100644
--- a/synapse/server.py
+++ b/synapse/server.py
@@ -77,6 +77,7 @@ from synapse.handlers.devicemessage import DeviceMessageHandler
 from synapse.handlers.directory import DirectoryHandler
 from synapse.handlers.e2e_keys import E2eKeysHandler
 from synapse.handlers.e2e_room_keys import E2eRoomKeysHandler
+from synapse.handlers.event_auth import EventAuthHandler
 from synapse.handlers.events import EventHandler, EventStreamHandler
 from synapse.handlers.federation import FederationHandler
 from synapse.handlers.groups_local import GroupsLocalHandler, GroupsLocalWorkerHandler
@@ -750,6 +751,10 @@ class HomeServer(metaclass=abc.ABCMeta):
         return SpaceSummaryHandler(self)
 
     @cache_in_self
+    def get_event_auth_handler(self) -> EventAuthHandler:
+        return EventAuthHandler(self)
+
+    @cache_in_self
     def get_external_cache(self) -> ExternalCache:
         return ExternalCache(self)