fix in download torrents

pytorrent/routes/torrents.py

@@ -257,9 +257,7 @@ def torrent_file_export_link(torrent_hash: str):
     if not profile:
         return jsonify({"ok": False, "error": "No profile"}), 400
     try:
-        # Note: Export availability is checked before the UI receives a temporary /download URL.
-        item = rtorrent.export_torrent_file(profile, torrent_hash)
-        _cleanup_staged_file(profile, item["path"], bool(item.get("local")))
+        # Note: Create only a short-lived link here; the actual .torrent export runs once when the browser opens /download/<token>.
         link = pdf_preview_links.create_torrent_file_download_link(torrent_hash, int(profile.get("id") or 0), int(default_user_id() or 0))
         return ok({"url": url_for("main.temporary_download", token=link["token"]), "expires_in": link["expires_in"]})
     except Exception as exc:
@@ -276,15 +274,7 @@ def torrent_files_export_zip_link():
     if not hashes:
         return jsonify({"ok": False, "error": "No torrents selected"}), 400
     try:
-        # Note: Each hash is checked before the temporary ZIP export link is returned to the UI.
-        staged_paths = []
-        try:
-            for h in hashes:
-                item = rtorrent.export_torrent_file(profile, h)
-                staged_paths.append((item["path"], bool(item.get("local"))))
-        finally:
-            for path, is_local in staged_paths:
-                _cleanup_staged_file(profile, path, is_local)
+        # Note: Store only the selected hashes in the temporary token; exporting each .torrent now happens once during the real ZIP download.
         link = pdf_preview_links.create_torrent_files_zip_download_link(hashes, int(profile.get("id") or 0), int(default_user_id() or 0))
         return ok({"url": url_for("main.temporary_download", token=link["token"]), "expires_in": link["expires_in"]})
     except Exception as exc: