Nginx禁止指定UA访问的方法

if ($http_user_agent ~* "qihoobot|Baidu|Baiduspider|Baiduspider-image|Baiduspider-video|Baiduspider-news|Baiduspider-favo|Baiduspider-cpro|Baiduspider-ads|Baiduboxapp|YisouSpider|EasouSpider|YodaoBot|YoudaoBot|Sosospider|Sogou|^$") {
    return 444;
  }

if ($http_user_agent ~* "Scrapy|HttpClient|Curl|Wget|Idm|Aria2|Axel|Thunder|Youtube-dl|Movgrab|rtorrent|ctorrent|Transmission-cli|vuze") {
    return 444;
  }

if ($http_user_agent ~* "360|360SE|360EE|2345Explorer|maxthon|sogou|theworld|qiyu|green|qq|qqbrowser|tt|liebao|lbbrowser|tao|taobao|coolnovo|saayaa|uc|mi|xiaomi|baidu|yandex|micromessenger|wechat|weibo|douban|suning|iqiyi|alipay|ali-ap|ali-ap-pd|ali-am|ali-tb|ali-tb-pd|ali-tm|ali-tm-pd") {
    return 444;
  }

if ($http_user_agent ~* "yunos") {
    return 444;
  }

if ($http_user_agent ~* "UA关键词") {
    ...
  }