improve api/addfav to support urlencoded share content

themes/tajian/controller/ApiController.php

@@ -58,6 +58,8 @@ Class ApiController extends SiteController {
         if (empty($content)) {
             $code = 0;
             $err = '请粘贴填写分享内容！';
+        }else {
+            $content = urldecode($content);
         }
 
         $tagName = '';