需要帮助为子域重写 Nginx 规则

Question

不久前我做了一点重写规则，将直接访问我网站图片的用户重定向到图片页面，

例如一个人访问 www.mysite.com/i/asdf.jpg 到 www.mysite.com/pic/asdf

这是我使用的重写规则：

location /i/image_(\d+).(gif|jpg|jpeg|png)$ {
  root /home/mysite/public_html;
  valid_referers www.example.com mysite.com;
  if ($invalid_referer) {
   rewrite ^ http://www.example.com/pic/$1 permanent;
  }
 }

我创建了一个包含所有图像的目录“i”的子域。所以现在就像http://i.mysite.com/

是否可以像上面那样进行重写，所以如果文件被不同的引用者直接访问，它将达到相同的重写规则？

谢谢 :)

更新： 现在使用这个：

   server {
 access_log off;

  error_log  logs/vhost-error_log warn;
  listen    80;
  server_name i.imgzzz.com;
    root /home/imgzzz/public_html;
  #location ~ ^/pic/ { alias /home/imgzzz/public_html/i; }
        location ~ ^/pic/(.*)$ { alias /home/imgzzz/public_html/i/$1; }
valid_referers i.imgzzz.com www.imgzzz.com imgzzz.com;
location ~ /image_(\d+).(gif|jpg|jpeg|png)$ {
    if ($invalid_referer) {
        rewrite /image_(\d+).(gif|jpg|jpeg|png)$ /pic/image_$1 last;
    }
}
}

Htaccess 重写：

RewriteBase /
Options +FollowSymlinks
#RewriteEngine on
rewritecond %{http_host} ^imgzzz.com [nc]
rewriterule ^(.*)$ http://www.imgzzz.com/$1 [r=301,nc] 

RewriteCond %{HTTP_REFERER} !^http://(www\.)?imgzzz.com/.*$ [NC]
RewriteRule i/image_(\d+)\.(jpg|jpeg|gif) pic/$1 [L]

RewriteRule ^pic/([0-9]+)/{0,1}$ view.php?name=$1 [QSA,L]
RewriteRule ^pic/full/([0-9]+)/{0,1}$ view-f.php?name=$1 [QSA,L]
RewriteRule ^pic/([0-9]+)/feature/$ view.php?name=$1&pop=1 [QSA,L]

Answer 1

valid_referers i.imgzzz.com www.imgzzz.com imgzzz.com;
位置 ~ /image_(\d+).(gif|jpg|jpeg|png)$ {
    如果（$invalid_referer）{
        最后重写 /image_(\d+).(gif|jpg|jpeg|png)$ /view.php?name=image_$1.$2;
    }
}