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-rw-r--r--synapse/handlers/room.py14
1 files changed, 6 insertions, 8 deletions
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index 2fc8264858..f64a8690a5 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -60,7 +60,6 @@ from synapse.event_auth import validate_event_for_room_version
 from synapse.events import EventBase
 from synapse.events.utils import copy_and_fixup_power_levels_contents
 from synapse.federation.federation_client import InvalidResponseError
-from synapse.handlers.federation import get_domains_from_state
 from synapse.handlers.relations import BundledAggregations
 from synapse.module_api import NOT_SPAM
 from synapse.rest.admin._base import assert_user_is_admin
@@ -1462,17 +1461,16 @@ class TimestampLookupHandler:
                 timestamp,
             )
 
-            # Find other homeservers from the given state in the room
-            curr_state = await self._storage_controllers.state.get_current_state(
-                room_id
+            likely_domains = (
+                await self._storage_controllers.state.get_current_hosts_in_room(room_id)
             )
-            curr_domains = get_domains_from_state(curr_state)
-            likely_domains = [
-                domain for domain, depth in curr_domains if domain != self.server_name
-            ]
 
             # Loop through each homeserver candidate until we get a succesful response
             for domain in likely_domains:
+                # We don't want to ask our own server for information we don't have
+                if domain == self.server_name:
+                    continue
+
                 try:
                     remote_response = await self.federation_client.timestamp_to_event(
                         domain, room_id, timestamp, direction