优化一处理表单结构

app/admin/controller/api/Upload.php

@@ -331,6 +331,7 @@ class Upload extends Controller
         $bins = hex2bin($hexs);
         /* 匹配十六进制中的 <% ( ) %> 或 <? ( ) ?> 或 <script | /script> */
         foreach (['<?php ', '<% ', '<script '] as $key) if (stripos($bins, $key) !== false) return true;
-        return preg_match("/(3c25.*?28.*?29.*?253e)|(3c3f.*?28.*?29.*?3f3e)|(3C534352495054)|(2F5343524950543E)|(3C736372697074)|(2F7363726970743E)/is", $hexs);
+        $result = preg_match("/(3c25.*?28.*?29.*?253e)|(3c3f.*?28.*?29.*?3f3e)|(3C534352495054)|(2F5343524950543E)|(3C736372697074)|(2F7363726970743E)/is", $hexs);
+        return $result === false || $result > 0;
     }
 }

app/admin/view/config/system.html

@@ -51,7 +51,7 @@
         <div class="layui-form-item margin-bottom-5">
             <div class="help-label label-required-prev"><b>浏览器小图标</b>Browser Icon</div>
             <div class="relative block label-required-null">
-                <label><input class="layui-input" required pattern="url" vali-name="图标文件" data-tips-image data-tips-hover placeholder="请上传浏览器图标" value="{:sysconf('site_icon')}" name="site_icon"></label>
+                <input class="layui-input" required pattern="url" vali-name="图标文件" data-tips-image data-tips-hover placeholder="请上传浏览器图标" value="{:sysconf('site_icon')}" name="site_icon">
                 <a class="input-right-icon layui-icon layui-icon-upload-drag" data-file="btn" data-type="png,jpg,jpeg" data-field="site_icon"></a>
             </div>
             <div class="help-block sub-span-blue">