Upload app.py

app.py

@@ -199,6 +199,19 @@ def _rag_search(vs, query: str, k: int, article_filter: str, category_filter: st
     want_category = None if category_filter in (None, "", "All categories")           else category_filter
 
     backend_type = type(vs).__name__
+    
+    ## potential security fix as catchall for FAISS search failure
+    #if "FAISS" in backend_type:
+    #try:
+    #    pool_size = min(k * 10, 80)
+    #    pool = vs.similarity_search(query, k=pool_size)
+    #
+    #    # ... rest of your filtering code ...
+    #    
+    #except Exception as e:
+    #    logger.error("FAISS similarity_search failed: %s", e)
+    #    # Fallback: try without k limit or return empty
+    #    return vs.similarity_search(query, k=k)
 
     if "FAISS" in backend_type:
         # FAISS: post-filtering (unchanged)