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Nginx 热链接保护存在问题

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Nginx 热链接保护存在问题

我正在尝试在 nginx 中实现图像热链接保护问题，我需要帮助。我有一个很大的问题，我的网站的图片被提交到 StumbleUpon 等社交网络，带有直接链接，如

http://example.com/xxxxx.jpg

有时会巨大的流量并增加 CPU 使用率和带宽使用率。我想阻止其他引荐来源直接访问我的图片并保护它们不被盗链。

这是我的 vhost.conf 中的代码

 server {
  access_log off;

  error_log  logs/vhost-error_log warn;
  listen    80;
  server_name  mydomain.com www.mydomain.com;

  # uncomment location below to make nginx serve static files instead of Apache
  # NOTE this will cause issues with bandwidth accounting as files wont be logged
  location ~* \.(gif|jpg|jpeg|png|wmv|avi|mpg|mpeg|mp4|htm|html|js|css)$ {
   root   /home/username/public_html;
   expires 1d;
  }

   root   /home/mydomain/public_html;
}


  location / {
   client_max_body_size    10m;
   client_body_buffer_size 128k;

   proxy_send_timeout   90;
   proxy_read_timeout   90;

   proxy_buffer_size    4k;
   # you can increase proxy_buffers here to suppress "an upstream response
   #  is buffered to a temporary file" warning
   proxy_buffers     16 32k;
   proxy_busy_buffers_size 64k;
   proxy_temp_file_write_size 64k;

   proxy_connect_timeout 30s;

   proxy_redirect  http://www.mydomain.com:81   http://www.mydomain.com;
   proxy_redirect  http://mydomain.com:81   http://mydomain.com;

   proxy_pass   http://ip_address/;

   proxy_set_header   Host   $host;
   proxy_set_header   X-Real-IP  $remote_addr;
   proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;

   expires       24h;

  }
  }

为了保护热链接，我添加了此代码

location ~* (\.jpg|\.png|\.gif|\.jpeg)$ {
     valid_referers blocked www.mydomain.com mydomain.com;
     if ($invalid_referer) {
        return 403;
     }

这是该域的当前 nginx 代码，但它不起作用：

 server {
  access_log off;

  error_log  logs/vhost-error_log warn;
  listen    80;
  server_name  mydomain.com www.mydomain.com;

  # uncomment location below to make nginx serve static files instead of Apache
  # NOTE this will cause issues with bandwidth accounting as files wont be logged
  location ~* \.(gif|jpg|jpeg|png|wmv|avi|mpg|mpeg|mp4|htm|html|js|css)$ {
   root   /home/username/public_html;
   expires 1d;
  }

   root   /home/mydomain/public_html;
}
  location ~* (\.jpg|\.png|\.gif|\.jpeg)$ {
     valid_referers blocked www.mydomain.com mydomain.com;
     if ($invalid_referer) {
        return 403;
     }


  location / {
   client_max_body_size    10m;
   client_body_buffer_size 128k;

   proxy_send_timeout   90;
   proxy_read_timeout   90;

   proxy_buffer_size    4k;
   # you can increase proxy_buffers here to suppress "an upstream response
   #  is buffered to a temporary file" warning
   proxy_buffers     16 32k;
   proxy_busy_buffers_size 64k;
   proxy_temp_file_write_size 64k;

   proxy_connect_timeout 30s;

   proxy_redirect  http://www.mydomain.com:81   http://www.mydomain.com;
   proxy_redirect  http://mydomain.com:81   http://mydomain.com;

   proxy_pass   http://ip_address/;

   proxy_set_header   Host   $host;
   proxy_set_header   X-Real-IP  $remote_addr;
   proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;

   expires       24h;

  }
  }

我怎样才能解决这个问题？

答案1

您应该在以下网址询问此问题：https://serverfault.com/

我当前的网站使用这个：



## Stop Image and Document Hijacking, alow Google, MSN PicSearch
location ~* \.(png|gif|jpg|jpeg)$ {
        set $testref "";
        if ($http_referer !~ ^(http://mydomain.com|http://www.google|http://images.search.yahoo|http://www.bing|http://pictures.ask)){
           set $testref I;
        }
        if ($http_user_agent !~* (Googlebot|psbot|msnbot|Yahoo|Ask)) {
           set $testref "${testref}G";
        }
        if ($testref = IG){
           return 444;
        }
}

您只能使用第一个“if”部分，第二个部分不阻止 Google 和其他图像蜘蛛。第一部分从 mydomain（和 google 等）查找引荐来源，并在其他情况下返回 444。它可以被替换为返回 blank.gif 图像。

答案2

您可以使用valid_referersNginx 中的选项来实现这一点。请参阅https://www.atulhost.com/hotlink-protection-nginx

相关代码为：

location ~* \.(gif|jpg|jpeg|png|wmv|avi|mpg|mpeg|mp4|htm|html|js|css)$ {
  valid_referers none blocked example.org www.exampleorg ~\.google\. ~\.yahoo\. ~\.bing\. ~\.facebook\. ~\.fbcdn\.;
  if ($invalid_referer) {
    return 403;
  }

  root   /home/username/public_html;
  expires 1d;
}

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