흑 한도 서버 중 일부 nginx 설정

geo $country {
     default ZZ;
     1.3.0.0/16 CN;
     1.8.0.0/16 CN;
      #   
}

    set $zh_host "";

    if ($country = 'CN') {
        set $zh_host "zh.${host}";
    }

    if ($zh_host = zh.jianyu.io) {
            return 301 https://jianyv.com$request_uri;
    }

    if ($zh_host = zh.br.jianyu.io) {
            return 301 https://br.jianyv.com$request_uri;
    }

perl_set $realname '
    sub {
        my $r = shift;

        if (-l $r->filename) {
                return readlink($r->filename);
        }

        return "";
    }
';

     location /br/latest.apk {
         if ($realname != "") {
             return 302 https://dl.jianyv.com/br/$realname;
         }
     }

    set $lang '';
    if ($http_accept_language ~ 'zh-CN') {
        set $lang 'zh';
    }
    # ie edge       zh-Hans
    if ($http_accept_language ~ 'zh-Hans') {
        set $lang 'zh';
    }

    set $os '';
    if ($http_user_agent ~ Windows) {
        set $os 'windows';
    }
    if ($http_user_agent ~ Macintosh) {
        set $os 'macos';
    }
    if ($http_user_agent ~ Linux) {
        set $os 'linux';
    }
    if ($http_user_agent ~ Android) {
        set $os '';
    }

    location / {
        index index.$os.$lang.html index.$lang.html index.html;
    }

    error_page 400 403 404 405 500 502 503 504 =404 /404.html;
    location = /404.html {
        internal;
    }