阿里云提示织梦DedeCMS uploadsafe.inc.php上传漏洞的解

if(empty(${$_key.'_size'}))    {        ${$_key.'_size'} = @filesize($$_key);    }

$imtypes = array("image/pjpeg", "image/jpeg", "image/gif", "image/png", "image/xpng", "image/wbmp", "image/bmp");	if(in_array(strtolower(trim(${$_key.'_type'})), $imtypes)){		$image_dd = @getimagesize($$_key); if($image_dd == false){			continue;		}		if (!is_array($image_dd)) {			exit('Upload filetype not allow !');		}	}