diff --git a/tools/proftp.php b/tools/proftp.php
index 188af51a..f85290dc 100644
--- a/tools/proftp.php
+++ b/tools/proftp.php
@@ -5,9 +5,9 @@
 		die("Error in connection: " . pg_last_error());
 	}
 	//安全检查：只接受来自westdc.westgis.ac.cn的访问
-	if($_SERVER['HTTP_CLIENT_IP']){  
+	if(@$_SERVER['HTTP_CLIENT_IP']){  
 		$onlineip=$_SERVER['HTTP_CLIENT_IP'];  
-	}elseif($_SERVER['HTTP_X_FORWARDED_FOR']){  
+	}elseif(@$_SERVER['HTTP_X_FORWARDED_FOR']){  
 		$onlineip=$_SERVER['HTTP_X_FORWARDED_FOR'];  
 	}else{  
 		$onlineip=$_SERVER['REMOTE_ADDR'];  
@@ -15,8 +15,8 @@
 	if ($onlineip!='210.77.68.241')
 		die("error! You are not permitted to visit this page.");  
 	//文件生成
-	$onlineappid=(int)$_GET['onlineappid'];
-	$offlineappid=(int)$_GET['offlineappid'];
+	$onlineappid=(int)@$_GET['onlineappid'];
+	$offlineappid=(int)@$_GET['offlineappid'];
 	if (!($onlineappid>0 || $offlineappid>0))
 	{
 		die("Error in parameter.");