mylxsw

location /download/ {
    root /home/data/images;
    if ($request_uri ~* ^.*\/(.*)\.(doc|txt|zip|jpg|jpeg|png|gif|pdf|rar|xls|xlsx|docx|ppt|pptx|wps)(\?name=([^&]+))$) {
        set $filename "$arg_name.$2";
        header_filter_by_lua_block {
            if ngx.status ~= 200 then
                return
            end

            local ua = ngx.req.get_headers()["User-Agent"]