preview via files

src/main/java/app/controllers/FileController.java

@@ -106,6 +106,7 @@ public class FileController {
 
         HttpHeaders headers = new HttpHeaders();
         headers.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + encodeFileName(dbFile.getFilename()));
+        headers.add(HttpHeaders.CACHE_CONTROL,"max-age="+(60*60*24*30));
         return ResponseEntity.ok()
                 .headers(headers)
                 .contentLength(dbFile.getFilesize())

src/main/java/app/updates/PreviewUpdater.java

@@ -72,10 +72,10 @@ public class PreviewUpdater extends BaseUpdater{
     public String getPreview(String map) {
         String url;
         //Check dbfile
-        //try {
-        //    url = fileController.getUrlWithNameAndTag(map, "map");
-        //    return url;
-        //} catch (Exception ignored) {}
+        try {
+            url = fileController.getUrlWithNameAndTag(map, "map");
+            return url;
+        } catch (Exception ignored) {}
 
         //Check jpg
         url = preview.formatted(domain, map, "jpg");