diff --git a/application/admin/controller/api/Plugs.php b/application/admin/controller/api/Plugs.php
index f5501a10f..5c6791e76 100644
--- a/application/admin/controller/api/Plugs.php
+++ b/application/admin/controller/api/Plugs.php
@@ -28,14 +28,13 @@ class Plugs extends Controller
 {
 
     /**
-     * Plugs constructor.
+     * 系统选择器图标
      */
-    public function __construct()
+    public function icon()
     {
-        parent::__construct();
-        if (!NodeService::islogin()) {
-            $this->error('访问授权失败，请重新登录授权再试！');
-        }
+        $this->title = '图标选择器';
+        $this->field = input('field', 'icon');
+        $this->fetch();
     }
 
     /**
@@ -46,13 +45,16 @@ class Plugs extends Controller
      */
     public function plupload()
     {
+        if (!NodeService::islogin()) {
+            $this->error('访问授权失败，请重新登录授权再试！');
+        }
         if (!($file = $this->getUploadFile()) || empty($file)) {
             return json(['uploaded' => false, 'error' => ['message' => '文件上传异常，文件可能过大或未上传']]);
         }
         if (!$file->checkExt(strtolower(sysconf('storage_local_exts')))) {
             return json(['uploaded' => false, 'error' => ['message' => '文件上传类型受限，请在后台配置']]);
         }
-        if ($file->checkExt('php')) {
+        if ($file->checkExt('php,sh')) {
             return json(['uploaded' => false, 'error' => ['message' => '可执行文件禁止上传到本地服务器']]);
         }
         $this->safe = boolval(input('safe'));
@@ -95,14 +97,4 @@ class Plugs extends Controller
         }
     }
 
-    /**
-     * 系统选择器图标
-     */
-    public function icon()
-    {
-        $this->title = '图标选择器';
-        $this->field = input('field', 'icon');
-        $this->fetch();
-    }
-
 }
diff --git a/application/admin/controller/api/Update.php b/application/admin/controller/api/Update.php
index 9ce9b6a9b..bafad5c76 100644
--- a/application/admin/controller/api/Update.php
+++ b/application/admin/controller/api/Update.php
@@ -36,7 +36,7 @@ class Update extends Controller
      */
     public function tree()
     {
-        $sync = new Sync('update');
+        $sync = new Sync('Update');
         $this->success('获取当前文件列表成功！', $sync->build());
     }
 
@@ -46,13 +46,14 @@ class Update extends Controller
      */
     public function read($encode)
     {
-        $file = env('root_path') . decode($encode);
-        if (!file_exists($file)) {
-            $this->error('获取文件内容失败！');
-        } else {
-            $this->success('获取文件内容成功！', [
-                'format' => 'base64', 'content' => base64_encode(file_get_contents($file)),
+        $this->file = env('root_path') . decode($encode);
+        if (file_exists($this->file)) {
+            $this->success('读取文件成功！', [
+                'format'  => 'base64',
+                'content' => base64_encode(file_get_contents($this->file)),
             ]);
+        } else {
+            $this->error('获取文件内容失败！');
         }
     }