diff --git a/conststr.php b/conststr.php
index 2be8e31..550bc65 100644
--- a/conststr.php
+++ b/conststr.php
@@ -13,7 +13,7 @@ $constStr = [
         'zh-cn' => '中文',
         'ja' => '日本語',
         'ko-kr' => '한국어',
-        'fa' => 'Persian',
+        'fa' => 'فارسی',
     ],
     'Week' => [
         'en-us' => [
diff --git a/function/common.php b/function/common.php
index 3030ad9..31dc11c 100644
--- a/function/common.php
+++ b/function/common.php
@@ -91,7 +91,7 @@ function getcache($str)
     return $cache->fetch($str);
 }
 
-function savecache($key, $value, $exp = 3300)
+function savecache($key, $value, $exp = 1800)
 {
     $cache = null;
     $cache = new \Doctrine\Common\Cache\FilesystemCache(sys_get_temp_dir(), __DIR__.'/Onedrive/'.$_SERVER['disktag']);
@@ -566,7 +566,7 @@ function main($path)
         error_log('Get access token:'.json_encode($ret, JSON_PRETTY_PRINT));
         $_SERVER['access_token'] = $ret['access_token'];
         savecache('access_token', $_SERVER['access_token'], $ret['expires_in'] - 300);
-        if (time()>getConfig('token_expires')) setConfig([ 'refresh_token' => $ret['refresh_token'], 'token_expires' => time()+30*24*60*60 ]);
+        if (time()>getConfig('token_expires')) setConfig([ 'refresh_token' => $ret['refresh_token'], 'token_expires' => time()+7*24*60*60 ]);
     }
 
     $_SERVER['retry'] = 0;
@@ -624,8 +624,10 @@ function main($path)
                 if (strtolower(splitlast($filename,'.')[1])==strtolower($_GET['random'])) $tmp[$filename] = $files['children'][$filename]['@microsoft.graph.downloadUrl'];
             }
             $tmp = array_values($tmp);
-            if (count($tmp)>0) return output('', 302, [ 'Location' => $tmp[rand(0,count($tmp)-1)] ]);
-            else return output('',404);
+            if (count($tmp)>0) {
+		if (isset($_GET['url'])) return output($tmp[rand(0,count($tmp)-1)], 200);
+		return output('', 302, [ 'Location' => $tmp[rand(0,count($tmp)-1)] ]);
+            } else return output('',404);
         } else return output('',401);
     }
     if (isset($files['file']) && !$_GET['preview']) {