MSC4370: Federation endpoint for retrieving current extremities

vona/federation/__init__.py

@@ -485,3 +485,13 @@ async def backfill(room):
 		"origin_server_ts": int(str(time.time() * 1000).split(".")[0]),
 		"pdus": send_join(bullshit, room)["state"]
 	})
+
+
+@server.route("/_matrix/federation/unstable/org.matrix.msc4370/extremities/<room>")
+@server.route("/_matrix/federation/v1/extremities/<room>")
+async def extremities(room):
+	return jsonify({
+		"prev_events": [
+			globals.make_event_id(seed=f"6_{room}"),
+		]
+	})