diff --git a/function/common.php b/function/common.php
index 0c7d6f9..b14dbc4 100644
--- a/function/common.php
+++ b/function/common.php
@@ -1,6 +1,22 @@
 <?php
 
-$commonEnv = [
+$CommonEnv = [
+    'APIKey', // used in heroku.
+    'Region', // used in SCF.
+    'SecretId', // used in SCF.
+    'SecretKey', // used in SCF.
+    'admin',
+    'adminloginpage',
+    'background',
+    'disktag',
+    'function_name', // used in heroku.
+    'language',
+    'passfile',
+    'sitename',
+    'theme',
+];
+
+$ShowedCommonEnv = [
     //'APIKey', // used in heroku.
     //'Region', // used in SCF.
     //'SecretId', // used in SCF.
@@ -16,7 +32,7 @@ $commonEnv = [
     'theme',
 ];
 
-$innerEnv = [
+$InnerEnv = [
     'Onedrive_ver',
     'client_id',
     'client_secret',
@@ -28,7 +44,7 @@ $innerEnv = [
     'token_expires',
 ];
 
-$ShowedinnerEnv = [
+$ShowedInnerEnv = [
     //'Onedrive_ver',
     //'client_id',
     //'client_secret',
@@ -417,8 +433,8 @@ function bigfileupload($path)
         //echo json_encode($getoldupinfo, JSON_PRETTY_PRINT);
         if (isset($getoldupinfo['file'])&&$getoldupinfo['size']<5120) {
             $getoldupinfo_j = curl_request($getoldupinfo['@microsoft.graph.downloadUrl']);
-            $getoldupinfo = json_decode($getoldupinfo_j , true);
-            if ( json_decode( curl_request($getoldupinfo['uploadUrl']), true)['@odata.context']!='' ) return output($getoldupinfo_j);
+            $getoldupinfo = json_decode($getoldupinfo_j['body'], true);
+            if ( json_decode( curl_request($getoldupinfo['uploadUrl'])['body'], true)['@odata.context']!='' ) return output($getoldupinfo_j['body'], $getoldupinfo_j['stat']);
         }
         if (!$_SERVER['admin']) $filename = spurlencode( $fileinfo['name'] ) . '.scfupload';
         $response=MSAPI('createUploadSession',path_format($path1 . '/' . $filename),'{"item": { "@microsoft.graph.conflictBehavior": "fail"  }}',$_SERVER['access_token']);
diff --git a/function/heroku.php b/function/heroku.php
index e3b6771..7e1daa5 100644
--- a/function/heroku.php
+++ b/function/heroku.php
@@ -39,9 +39,9 @@ function getGET()
 
 function getConfig($str, $disktag = '')
 {
-    global $innerEnv;
+    global $InnerEnv;
     if ($disktag=='') $disktag = $_SERVER['disktag'];
-    if (in_array($str, $innerEnv)) {
+    if (in_array($str, $InnerEnv)) {
         return json_decode(getenv($disktag), true)[$str];
     }
     return getenv($str);
@@ -49,7 +49,7 @@ function getConfig($str, $disktag = '')
 
 function setConfig($arr, $disktag = '')
 {
-    global $innerEnv;
+    global $InnerEnv;
     if ($disktag=='') $disktag = $_SERVER['disktag'];
     $disktags = explode("|",getConfig('disktag'));
     $diskconfig = json_decode(getenv($disktag), true);
@@ -57,7 +57,7 @@ function setConfig($arr, $disktag = '')
     $indisk = 0;
     $oparetdisk = 0;
     foreach ($arr as $k => $v) {
-        if (in_array($k, $innerEnv)) {
+        if (in_array($k, $InnerEnv)) {
             $diskconfig[$k] = $v;
             $indisk = 1;
         } elseif ($k=='disktag_add') {
@@ -90,6 +90,8 @@ function setConfig($arr, $disktag = '')
 function get_refresh_token()
 {
     global $constStr;
+    global $CommonEnv;
+    foreach ($CommonEnv as $env) $envs .= '\'' . $env . '\', ';
     $url = path_format($_SERVER['PHP_SELF'] . '/');
     if ($_GET['authorization_code'] && isset($_GET['code'])) {
         $_SERVER['disktag'] = $_COOKIE['disktag'];
@@ -147,6 +149,9 @@ function get_refresh_token()
     }
     if ($_GET['install0']) {
         if ($_POST['disktag_add']!='' && ($_POST['Onedrive_ver']=='MS' || $_POST['Onedrive_ver']=='CN' || $_POST['Onedrive_ver']=='MSC')) {
+            if (in_array($_COOKIE['disktag'], $CommonEnv)) {
+                return message('Do not input ' . $envs . '<br><button onclick="location.href = location.href;">'.getconstStr('Reflesh').'</button><script>document.cookie=\'disktag=; path=/\';</script>', 'Error', 201);
+            }
             $_SERVER['disktag'] = $_COOKIE['disktag'];
             $tmp['disktag_add'] = $_POST['disktag_add'];
             $tmp['diskname'] = $_POST['diskname'];
@@ -199,6 +204,11 @@ function_name:' . $_SERVER['function_name'] . '<br>
                 alert(\'Input Disk Tag\');
                 return false;
             }
+            envs = [' . $envs . '];
+            if (envs.indexOf(t.disktag_add.value)>-1) {
+                alert(\'' . $envs . '\');
+                return false;
+            }
             var reg = /^[a-zA-Z]([-_a-zA-Z0-9]{1,20})$/;
             if (!reg.test(t.disktag_add.value)) {
                 alert(\''.getconstStr('TagFormatAlert').'\');
@@ -345,11 +355,10 @@ function updateHerokuapp($function_name, $apikey)
 function EnvOpt($function_name, $needUpdate = 0)
 {
     global $constStr;
-    global $commonEnv;
-    global $innerEnv;
-    global $ShowedinnerEnv;
-    asort($commonEnv);
-    asort($ShowedinnerEnv);
+    global $ShowedCommonEnv;
+    global $ShowedInnerEnv;
+    asort($ShowedCommonEnv);
+    asort($ShowedInnerEnv);
     $html = '<title>OneManager '.getconstStr('Setup').'</title>';
     if ($_POST['updateProgram']==getconstStr('updateProgram')) {
         $response = json_decode(updateHerokuapp(getConfig('function_name'), getConfig('APIKey'))['body'], true);
@@ -374,10 +383,10 @@ function_name:' . $_SERVER['function_name'] . '<br>
         }
         $_SERVER['disk_oprating'] = '';
         foreach ($_POST as $k => $v) {
-            if (in_array($k, $commonEnv)) {
+            if (in_array($k, $ShowedCommonEnv)) {
                 if (!(getConfig($k)==''&&$v=='')) $tmp[$k] = $v;
             }
-            if (in_array($k, $innerEnv)||$k=='disktag_del' || $k=='disktag_add') {
+            if (in_array($k, $ShowedInnerEnv)||$k=='disktag_del' || $k=='disktag_add') {
                 $tmp[$k] = $v;
             }
             if ($k == 'disk') $_SERVER['disk_oprating'] = $v;
@@ -425,7 +434,7 @@ function_name:' . $_SERVER['function_name'] . '<br>
         <tr>
             <td colspan="2">'.getconstStr('PlatformConfig').'</td>
         </tr>';
-    foreach ($commonEnv as $key) {
+    foreach ($ShowedCommonEnv as $key) {
         if ($key=='language') {
             $html .= '
         <tr>
@@ -494,7 +503,7 @@ function_name:' . $_SERVER['function_name'] . '<br>
                 $html .= '
     <form name="'.$disktag.'" action="" method="post">
         <input type="hidden" name="disk" value="'.$disktag.'">';
-                foreach ($ShowedinnerEnv as $key) {
+                foreach ($ShowedInnerEnv as $key) {
                     $html .= '
         <tr>
             <td><label>' . $key . '</label></td>
diff --git a/function/normal.php b/function/normal.php
index 7d0bc0b..4e0f3de 100644
--- a/function/normal.php
+++ b/function/normal.php
@@ -38,14 +38,14 @@ function getGET()
 
 function getConfig($str, $disktag = '')
 {
-    global $innerEnv;
+    global $InnerEnv;
     //include 'config.php';
     if ($disktag=='') $disktag = $_SERVER['disktag'];
     $s = file_get_contents('config.php');
     $configs = substr($s, 18, -2);
     if ($configs!='') {
         $envs = json_decode($configs, true);
-        if (in_array($str, $innerEnv)) {
+        if (in_array($str, $InnerEnv)) {
             if (isset($envs[$disktag][$str])) return $envs[$disktag][$str];
         } else if (isset($envs[$str])) return $envs[$str];
     }
@@ -54,7 +54,7 @@ function getConfig($str, $disktag = '')
 
 function setConfig($arr, $disktag = '')
 {
-    global $innerEnv;
+    global $InnerEnv;
     if ($disktag=='') $disktag = $_SERVER['disktag'];
     //include 'config.php';
     $s = file_get_contents('config.php');
@@ -64,7 +64,7 @@ function setConfig($arr, $disktag = '')
     //$indisk = 0;
     $operatedisk = 0;
     foreach ($arr as $k => $v) {
-        if (in_array($k, $innerEnv)) {
+        if (in_array($k, $InnerEnv)) {
             $envs[$disktag][$k] = $v;
             /*$diskconfig[$k] = $v;
             $indisk = 1;*/
@@ -103,6 +103,8 @@ function setConfig($arr, $disktag = '')
 function get_refresh_token()
 {
     global $constStr;
+    global $CommonEnv;
+    foreach ($CommonEnv as $env) $envs .= '\'' . $env . '\', ';
     $url = path_format($_SERVER['PHP_SELF'] . '/');
     if ($_GET['authorization_code'] && isset($_GET['code'])) {
         $_SERVER['disktag'] = $_COOKIE['disktag'];
@@ -160,6 +162,9 @@ function get_refresh_token()
     }
     if ($_GET['install0']) {
         if ($_POST['disktag_add']!='' && ($_POST['Onedrive_ver']=='MS' || $_POST['Onedrive_ver']=='CN' || $_POST['Onedrive_ver']=='MSC')) {
+            if (in_array($_COOKIE['disktag'], $CommonEnv)) {
+                return message('Do not input ' . $envs . '<br><button onclick="location.href = location.href;">'.getconstStr('Reflesh').'</button><script>document.cookie=\'disktag=; path=/\';</script>', 'Error', 201);
+            }
             $_SERVER['disktag'] = $_COOKIE['disktag'];
             $tmp['disktag_add'] = $_POST['disktag_add'];
             $tmp['diskname'] = $_POST['diskname'];
@@ -211,6 +216,11 @@ Can not write config to file.<br>
                 alert(\'Input Disk Tag\');
                 return false;
             }
+            envs = [' . $envs . '];
+            if (envs.indexOf(t.disktag_add.value)>-1) {
+                alert(\'' . $envs . '\');
+                return false;
+            }
             var reg = /^[a-zA-Z]([-_a-zA-Z0-9]{1,20})$/;
             if (!reg.test(t.disktag_add.value)) {
                 alert(\''.getconstStr('TagFormatAlert').'\');
@@ -313,11 +323,10 @@ function RewriteEngineOn()
 function EnvOpt($function_name, $needUpdate = 0)
 {
     global $constStr;
-    global $commonEnv;
-    global $innerEnv;
-    global $ShowedinnerEnv;
-    asort($commonEnv);
-    asort($ShowedinnerEnv);
+    global $ShowedCommonEnv;
+    global $ShowedInnerEnv;
+    asort($ShowedCommonEnv);
+    asort($ShowedInnerEnv);
     $html = '<title>OneManager '.getconstStr('Setup').'</title>';
     /*if ($_POST['updateProgram']==getconstStr('updateProgram')) {
         $response = json_decode(updataProgram($function_name, $Region, $namespace), true)['Response'];
@@ -339,7 +348,7 @@ namespace:' . $namespace . '<br>
     if ($_POST['submit1']) {
         $_SERVER['disk_oprating'] = '';
         foreach ($_POST as $k => $v) {
-            if (in_array($k, $commonEnv)||in_array($k, $innerEnv)||$k=='disktag_del' || $k=='disktag_add') {
+            if (in_array($k, $ShowedCommonEnv)||in_array($k, $ShowedInnerEnv)||$k=='disktag_del' || $k=='disktag_add') {
                 $tmp[$k] = $v;
             }
             if ($k == 'disk') $_SERVER['disk_oprating'] = $v;
@@ -384,7 +393,7 @@ namespace:' . $namespace . '<br>
         <tr>
             <td colspan="2">'.getconstStr('PlatformConfig').'</td>
         </tr>';
-    foreach ($commonEnv as $key) {
+    foreach ($ShowedCommonEnv as $key) {
         if ($key=='language') {
             $html .= '
         <tr>
@@ -453,7 +462,7 @@ namespace:' . $namespace . '<br>
                 $html .= '
     <form name="'.$disktag.'" action="" method="post">
         <input type="hidden" name="disk" value="'.$disktag.'">';
-                foreach ($ShowedinnerEnv as $key) {
+                foreach ($ShowedInnerEnv as $key) {
                     $html .= '
         <tr>
             <td><label>' . $key . '</label></td>
diff --git a/function/scf.php b/function/scf.php
index 2a54565..8a09b47 100644
--- a/function/scf.php
+++ b/function/scf.php
@@ -53,9 +53,9 @@ function GetPathSetting($event, $context)
 
 function getConfig($str, $disktag = '')
 {
-    global $innerEnv;
+    global $InnerEnv;
     if ($disktag=='') $disktag = $_SERVER['disktag'];
-    if (in_array($str, $innerEnv)) {
+    if (in_array($str, $InnerEnv)) {
         return json_decode(getenv($disktag), true)[$str];
     }
     return getenv($str);
@@ -63,7 +63,7 @@ function getConfig($str, $disktag = '')
 
 function setConfig($arr, $disktag = '')
 {
-    global $innerEnv;
+    global $InnerEnv;
     if ($disktag=='') $disktag = $_SERVER['disktag'];
     $disktags = explode("|",getConfig('disktag'));
     $diskconfig = json_decode(getenv($disktag), true);
@@ -71,7 +71,7 @@ function setConfig($arr, $disktag = '')
     $indisk = 0;
     $oparetdisk = 0;
     foreach ($arr as $k => $v) {
-        if (in_array($k, $innerEnv)) {
+        if (in_array($k, $InnerEnv)) {
             $diskconfig[$k] = $v;
             $indisk = 1;
         } elseif ($k=='disktag_add') {
@@ -111,6 +111,8 @@ function WaitSCFStat()
 function get_refresh_token()
 {
     global $constStr;
+    global $CommonEnv;
+    foreach ($CommonEnv as $env) $envs .= '\'' . $env . '\', ';
     $url = path_format($_SERVER['PHP_SELF'] . '/');
     if ($_GET['authorization_code'] && isset($_GET['code'])) {
         $_SERVER['disktag'] = $_COOKIE['disktag'];
@@ -169,6 +171,9 @@ function get_refresh_token()
     }
     if ($_GET['install0']) {
         if ($_POST['disktag_add']!='' && ($_POST['Onedrive_ver']=='MS' || $_POST['Onedrive_ver']=='CN' || $_POST['Onedrive_ver']=='MSC')) {
+            if (in_array($_COOKIE['disktag'], $CommonEnv)) {
+                return message('Do not input ' . $envs . '<br><button onclick="location.href = location.href;">'.getconstStr('Reflesh').'</button><script>document.cookie=\'disktag=; path=/\';</script>', 'Error', 201);
+            }
             $_SERVER['disktag'] = $_COOKIE['disktag'];
             $tmp['disktag_add'] = $_POST['disktag_add'];
             $tmp['diskname'] = $_POST['diskname'];
@@ -223,6 +228,11 @@ namespace:' . $_SERVER['namespace'] . '<br>
                 alert(\'Input Disk Tag\');
                 return false;
             }
+            envs = [' . $envs . '];
+            if (envs.indexOf(t.disktag_add.value)>-1) {
+                alert(\'' . $envs . '\');
+                return false;
+            }
             var reg = /^[a-zA-Z]([-_a-zA-Z0-9]{1,20})$/;
             if (!reg.test(t.disktag_add.value)) {
                 alert(\''.getconstStr('TagFormatAlert').'\');
@@ -418,9 +428,9 @@ function updateEnvironment($Envs, $function_name, $Region, $Namespace, $SecretId
 function SetbaseConfig($Envs, $function_name, $Region, $Namespace, $SecretId, $SecretKey)
 {
     echo json_encode($Envs,JSON_PRETTY_PRINT);
-    $trynum = 0;
+    /*$trynum = 0;
     while( json_decode(getfunctioninfo($_SERVER['function_name'], $_SERVER['Region'], $_SERVER['namespace'], $SecretId, $SecretKey),true)['Response']['Status']!='Active' ) echo '
-'.++$trynum;
+'.++$trynum;*/
     //json_decode($a,true)['Response']['Environment']['Variables'][0]['Key']
     $tmp = json_decode(getfunctioninfo($function_name, $Region, $Namespace, $SecretId, $SecretKey),true)['Response']['Environment']['Variables'];
     foreach ($tmp as $tmp1) {
@@ -487,11 +497,10 @@ function updateProgram($function_name, $Region, $Namespace, $SecretId, $SecretKe
 function EnvOpt($function_name, $needUpdate = 0)
 {
     global $constStr;
-    global $commonEnv;
-    global $innerEnv;
-    global $ShowedinnerEnv;
-    asort($commonEnv);
-    asort($ShowedinnerEnv);
+    global $ShowedCommonEnv;
+    global $ShowedInnerEnv;
+    asort($ShowedCommonEnv);
+    asort($ShowedInnerEnv);
     $html = '<title>OneManager '.getconstStr('Setup').'</title>';
     if ($_POST['updateProgram']==getconstStr('updateProgram')) {
         $response = json_decode(updateProgram($function_name, $_SERVER['Region'], $_SERVER['namespace'], getConfig('SecretId'), getConfig('SecretKey')), true)['Response'];
@@ -514,7 +523,7 @@ namespace:' . $namespace . '<br>
     if ($_POST['submit1']) {
         $_SERVER['disk_oprating'] = '';
         foreach ($_POST as $k => $v) {
-            if (in_array($k, $commonEnv)||in_array($k, $innerEnv)||$k=='disktag_del' || $k=='disktag_add') {
+            if (in_array($k, $ShowedCommonEnv)||in_array($k, $ShowedInnerEnv)||$k=='disktag_del' || $k=='disktag_add') {
                 $tmp[$k] = $v;
             }
             if ($k == 'disk') $_SERVER['disk_oprating'] = $v;
@@ -568,7 +577,7 @@ namespace:' . $_SERVER['namespace'] . '<br>
         <tr>
             <td colspan="2">'.getconstStr('PlatformConfig').'</td>
         </tr>';
-    foreach ($commonEnv as $key) {
+    foreach ($ShowedCommonEnv as $key) {
         if ($key=='language') {
             $html .= '
         <tr>
@@ -637,7 +646,7 @@ namespace:' . $_SERVER['namespace'] . '<br>
                 $html .= '
     <form name="'.$disktag.'" action="" method="post">
         <input type="hidden" name="disk" value="'.$disktag.'">';
-                foreach ($ShowedinnerEnv as $key) {
+                foreach ($ShowedInnerEnv as $key) {
                     $html .= '
         <tr>
             <td><label>' . $key . '</label></td>
diff --git a/version b/version
index 956463f..a813a8f 100644
--- a/version
+++ b/version
@@ -1,7 +1,10 @@
+20200225-1310.12
+Can update by one click any time. fix bugs: special tag, reupload.
+可以不管版本直接一键更新（覆盖）了。修复可以使用特殊onedrive标签的bug，修复断网续传的问题。
+
 20200222-2130.11
 you can set background now. fix bug: 2nd disk upload.
 可以设置背景图片了。第2个盘上传后链接不对。
-
 20200222-1700.09
 Can copy file and folder now.
 可以复制文件跟目录了。