feat: aggiunta ricerca tramite regex nella pagina ricerca supodrata con modal che fornisce rapide indicazioni.

routes/tickets.js

@@ -212,20 +212,45 @@ router.get('/', async (req, res) => {
     }
     const searchTerm = search || sub_search;
     if (searchTerm) {
-      conditions.push(`(
-        t.title ILIKE $${paramIdx} OR 
-        t.tn ILIKE $${paramIdx} OR
-        EXISTS (
-          SELECT 1 FROM article art
-          LEFT JOIN article_data_mime adm ON art.id = adm.article_id
-          WHERE art.ticket_id = t.id AND (
-            adm.a_subject ILIKE $${paramIdx} OR
-            adm.a_body ILIKE $${paramIdx}
+      const isRegex = req.query.is_regex === 'true' || req.query.is_regex === '1';
+      if (isRegex) {
+        // Validate regex pattern to prevent DB syntax error
+        try {
+          new RegExp(searchTerm);
+        } catch (regexErr) {
+          return res.status(400).json({ error: `Espressione regolare non valida: ${regexErr.message}` });
+        }
+
+        conditions.push(`(
+          t.title ~* $${paramIdx} OR 
+          t.tn ~* $${paramIdx} OR
+          EXISTS (
+            SELECT 1 FROM article art
+            LEFT JOIN article_data_mime adm ON art.id = adm.article_id
+            WHERE art.ticket_id = t.id AND (
+              adm.a_subject ~* $${paramIdx} OR
+              adm.a_body ~* $${paramIdx}
+            )
           )
-        )
-      )`);
-      params.push(`%${searchTerm}%`);
-      paramIdx++;
+        )`);
+        params.push(searchTerm);
+        paramIdx++;
+      } else {
+        conditions.push(`(
+          t.title ILIKE $${paramIdx} OR 
+          t.tn ILIKE $${paramIdx} OR
+          EXISTS (
+            SELECT 1 FROM article art
+            LEFT JOIN article_data_mime adm ON art.id = adm.article_id
+            WHERE art.ticket_id = t.id AND (
+              adm.a_subject ILIKE $${paramIdx} OR
+              adm.a_body ILIKE $${paramIdx}
+            )
+          )
+        )`);
+        params.push(`%${searchTerm}%`);
+        paramIdx++;
+      }
     }
 
     const whereClause = conditions.length > 0