diff --git a/third_party/phpcommon b/third_party/phpcommon
index 21cbf16..2e7067d 160000
--- a/third_party/phpcommon
+++ b/third_party/phpcommon
@@ -1 +1 @@
-Subproject commit 21cbf1616cd145c248452eaf77b1e1c7c14c82bd
+Subproject commit 2e7067d848c09897f27e6486c38399b27126ca26
diff --git a/webapp/controller/KefuController.class.php b/webapp/controller/KefuController.class.php
index ce41a0b..861ed0d 100644
--- a/webapp/controller/KefuController.class.php
+++ b/webapp/controller/KefuController.class.php
@@ -370,22 +370,6 @@ class KefuController {
         }
     }
 
-    function httpsRequest($url, $data = null)
-    {
-        $curl = curl_init();
-        curl_setopt($curl, CURLOPT_URL, $url);
-        #curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
-        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
-        if (!empty($data)){
-            curl_setopt($curl, CURLOPT_POST, 1);
-            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
-        }
-        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
-        $output = curl_exec($curl);
-        curl_close($curl);
-        return $output;
-    }
-
     private function getMediaId($gameid)
     {
         $type = "image";
@@ -395,10 +379,14 @@ class KefuController {
         );
         $access_token = $this->getAccessToken($gameid);
         $url = "https://api.weixin.qq.com/cgi-bin/media/upload?access_token=$access_token&type=$type";
-        $res_str = $this->httpsRequest($url, $filedata);
-        $res = json_decode($res_str, true);
-        if(isset($res['media_id'])) {
-            return $res['media_id'];
+        $response = '';
+        if (phpcommon\upload($url, $filedata, $response)) {
+            $jsonobj = json_decode($response, true);
+            if(isset($jsonobj['media_id'])) {
+                return $jsonobj['media_id'];
+            } else {
+                return '';
+            }
         } else {
             return '';
         }