Nginx/Tengine防盗链配置，支持指定链接白名单

防盗链主要用在资源站或文件服务器上，不想让别的网站引用你的资源，避免服务器流量浪费

Minio防盗链配置

location / {

    # 防盗链 白名单
    valid_referers none blocked server_names 4xx.me *.4xx.me 127.0.0.1 ~\.google\. ~\.baidu\. ~\.qq\. ~\.bing\. ~\.soso\. ~\.so\. ~\.sm\. ~\.youdao\. ~\.sogou\.;
    set $flag 1;
    if ($invalid_referer) {
        set $flag 0;
    }
    # 正则表达式匹配
    if ($request_uri ~* "(/logo.ico)|(/image.jpg)") {
      set $flag 1;
    }
    if ($flag = 0) {
        rewrite ^/ https://cdn.jsdelivr.net/gh/qinhua/cdn_assets/img/robber.jpg;
    }

    proxy_pass http://minio:9000;
    proxy_set_header HOST $host;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  }

• 支持排除源站地址
• 支持排除常见搜索引擎
• 支持排除指定资源链接