fixes bug to guang plusstar data show empty

@@ -30,7 +30,7 @@ class HomeController extends AbstractAction
     {
         $uid = $this->getUid($useSession);
         if (!$uid) {
-            $this->go(Helpers::url('/signin.html', array('refer' => $this->server('HTTP_REFERER', '/'))));
+            $this->go(Helpers::url('/signin.html', array('refer' => $this->server('HTTP_REFERER', SITE_MAIN))));
         }
     }
 
@@ -785,7 +785,7 @@ class HomeController extends AbstractAction
         if (empty($orderCode)) {
             $this->error();
         }
-
+        
         $this->_view->display('pay', array(
             'payAppInfo' => array(
                 0 => array(
@@ -806,6 +806,7 @@ class HomeController extends AbstractAction
                 ),
             ),
             'orderCode' => $orderCode,
+            'hasWxShare' => strpos($this->_request->server('HTTP_USER_AGENT', ''), 'MicroMessenger') !== false
         ));
     }