Added missing default statement in switch case (#653)

library/ajax/index_data.php

@@ -132,6 +132,9 @@ switch ($mode) {
 			<td>' . $user_ratio . '</td>
 		';
         break;
+
+    default:
+        $this->ajax_die('Invalid mode');
 }
 
 $this->response['html'] = $html;

library/ajax/manage_admin.php

@@ -110,6 +110,9 @@ switch ($mode) {
         $this->response['unlock_cron_html'] = '<span class="seed bold">' . $lang['ADMIN_UNLOCKED'] . '</span>';
 
         break;
+
+    default:
+        $this->ajax_die('Invalid mode');
 }
 
 $this->response['mode'] = $mode;

library/ajax/manage_user.php

@@ -104,6 +104,9 @@ switch ($mode) {
         $this->response['info'] = $lang['USER_ACTIVATE_OFF'];
 
         break;
+
+    default:
+        $this->ajax_die('Invalid mode');
 }
 
 $this->response['mode'] = $mode;

library/ajax/mod_action.php

@@ -133,4 +133,7 @@ switch ($mode) {
 			</table><br />
 		';
         break;
+
+    default:
+        $this->ajax_die('Invalid mode');
 }

library/ajax/user_register.php

@@ -44,6 +44,9 @@ switch ($mode) {
             $html = '<img src="./styles/images/good.gif"> <span class="seedmed bold">' . $text . '</span>';
         }
         break;
+
+    default:
+        $this->ajax_die('Invalid mode');
 }
 
 $this->response['html'] = $html;

src/Legacy/Caches.php

@@ -71,7 +71,8 @@ class Caches
                         $this->ref[$cache_name] =& $this->obj[$cache_name];
                         break;
 
-                    default: //filecache
+                    case 'filecache':
+                    default:
                         if (!isset($this->obj[$cache_name])) {
                             $this->obj[$cache_name] = new Cache\File($this->cfg['db_dir'] . $cache_name . '/', $this->cfg['prefix']);
                         }