fix: don't accept incoming pdus if we know about them already
@@ -554,6 +554,12 @@ pub async fn send_transaction_message_route<'a>(
// TODO: redact event if hashing fails
let (event_id, value) = crate::pdu::process_incoming_pdu(pdu);
+ // Skip the pdu if we already know about it
+ if db.rooms.get_pdu_id(&event_id)?.is_some() {
+ resolved_map.insert(event_id, Err("We already know about this event".into()));
+ continue;
+ }
+
let pdu = serde_json::from_value::<PduEvent>(
serde_json::to_value(&value).expect("CanonicalJsonObj is a valid JsonValue"),
)
