HACK: special case for :vector.im threepids

Author: sandhose

crates/syn2mas/src/migration.rs

@@ -354,10 +354,18 @@ async fn migrate_threepids(
         } = threepid_res.into_synapse("reading threepid")?;
         let created_at: DateTime<Utc> = added_at.into();
 
-        let username = synapse_user_id
+        let Ok(username) = synapse_user_id
             .extract_localpart(&state.server_name)
-            .into_extract_localpart(synapse_user_id.clone())?
-            .to_owned();
+            .into_extract_localpart(synapse_user_id.clone())
+            .map(str::to_owned)
+        else {
+            // HACK(matrix.org): for some reason, m.org has threepids for the :vector.im
+            // server. We skip them, and log for potential other servers.
+            if !synapse_user_id.0.ends_with(":vector.im") {
+                tracing::warn!("Unexpected MXID for threepid: {}", synapse_user_id);
+            }
+            continue;
+        };
         let Some(user_infos) = state.users.get(username.as_str()).copied() else {
             return Err(Error::MissingUserFromDependentTable {
                 table: "user_threepids".to_owned(),