Fixes #6755 Batch removal of Errors and Warnings in Monitor System protocol viewer does not work

Author: tbrehm

interface/web/monitor/log_del.php

@@ -34,17 +34,13 @@
 //* Check permissions for module
 $app->auth->check_module_permissions('monitor');
 
-$type = $app->functions->intval($_GET['type']);
-if ($type == "batch") {
+if ($_GET['type'] == "batch") {
   $loglevel = $app->functions->intval($_GET['loglevel']);
-  $app->db->query("UPDATE sys_log SET loglevel = 0 WHERE loglevel = ?", $loglevel);
+  if($loglevel >= 0 && $loglevel <= 2) $app->db->query("UPDATE sys_log SET loglevel = 0 WHERE loglevel = ?", $loglevel);
 } else {
   $syslog_id = $app->functions->intval($_GET['id']);
-  $app->db->query("UPDATE sys_log SET loglevel = 0 WHERE syslog_id = ?", $syslog_id);
+  if($syslog_id > 0) $app->db->query("UPDATE sys_log SET loglevel = 0 WHERE syslog_id = ?", $syslog_id);
 }
 
 header('Location: log_list.php');
 exit;
-
-
-?>