# 工作进程的数量
worker_processes 1;
events {
  worker_connections 1024; # 每个工作进程连接数
}

http {
  include    mime.types;
  default_type application/octet-stream;

  # 日志格式
  log_format access '$remote_addr - $remote_user [$time_local] $host "$request" '
         '$status $body_bytes_sent "$http_referer" '
         '"$http_user_agent" "$http_x_forwarded_for" "$clientip"';
  access_log /srv/log/nginx/access.log access; # 日志输出目录
  gzip on;
  sendfile on;

  # 链接超时时间，自动断开
  keepalive_timeout 60;

  # 虚拟主机
  server {
    listen    8080;
    server_name localhost; # 浏览器访问域名

    charset utf-8;
    access_log logs/localhost.access.log access;

    # 路由
    location / {
      root  www; # 访问根目录
      index index.html index.htm; # 入口文件
    }
  }

  # 引入其他的配置文件
  include servers/*;
}

server {
  listen    8080;
  server_name xx_domian; # 浏览器访问域名

  charset utf-8;
  access_log logs/xx_domian.access.log access;

  # 路由
  location / {
    root  www; # 访问根目录
    index index.html index.htm; # 入口文件
  }
}

location ~.*\.css$ {
  expires 1d;
  break;
}
location ~.*\.js$ {
  expires 1d;
  break;
}

location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$ {
  access_log off;
  expires 15d;  #保存15天
  break;
}

# curl -x127.0.0.1:80 http://www.test.com/static/image/common/logo.png -I #测试图片的max-age

location ~* \.(js|css|png|jpg|gif)$ {
  add_header Cache-Control no-store;
}

location ~* \.(gif|jpg|png)$ {
  # 只允许 192.168.0.1 请求资源
  valid_referers none blocked 192.168.0.1;
  if ($invalid_referer) {
    rewrite ^/ http://$host/logo.png;
  }
}

server {
  # 开启gzip 压缩
  gzip on;
  # 设置gzip所需的http协议最低版本 （HTTP/1.1, HTTP/1.0）
  gzip_http_version 1.1;
  # 设置压缩级别，压缩级别越高压缩时间越长 （1-9）
  gzip_comp_level 4;
  # 设置压缩的最小字节数， 页面Content-Length获取
  gzip_min_length 1000;
  # 设置压缩文件的类型 （text/html)
  gzip_types text/plain application/javascript text/css;
}

# 根据状态码，返回对于的错误页面
error_page 500 502 503 504 /50x.html;
location = /50x.html {
  root /source/error_page;
}

## 配置反向代理的参数
server {
  listen  8080;
  server_name xx_domain

  ## 1. 用户访问 http://xx_domain，则反向代理到 https://github.com
  location / {
    proxy_pass https://github.com;
    proxy_redirect   off;
    proxy_set_header  Host       $host;    # 传递域名
    proxy_set_header  X-Real-IP    $remote_addr; # 传递ip
    proxy_set_header  X-Scheme     $scheme;   # 传递协议
    proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
  }
}