<%
  @path = "/etc/nginx/rubber/unicorn_nginx.conf"
%>

upstream unicorn_server {
 # This is the socket we configured in unicorn.rb
 server unix:/var/run/unicorn.sock
 fail_timeout=0;
}

server {
  listen 80;
  client_max_body_size 4G;
  server_name <%= [ rubber_env.domain, rubber_env.web_aliases ].flatten.compact.join(" ") %>;

  sendfile on;
  keepalive_timeout 65;

  # Location of our static files
  root <%= Rubber.root + "/public" %>;
  set $public <%= Rubber.root + "/public" %>;

  location / {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;

    # If you don't find the filename in the static files
    # Then request it from the unicorn server
    if (!-f $request_filename) {
      proxy_pass http://unicorn_server;
      break;
    }

    location ~ ^/assets/ {
      expires 1y;
      add_header Cache-Control public;
      add_header ETag "";
      break;
    }

    location ~ ^/uploads/ {
      expires 1y;
      add_header Cache-Control public;
      add_header ETag "";

      ## optional upload anti-hotlinking rules
      #valid_referers none blocked mysite.com *.mysite.com;
      #if ($invalid_referer) {
      #  return 403;
      #}

      # let NGINX serve images
      location ~* \.(gif|png|jpg|jpeg|bmp|tif|tiff)$ { try_files $uri =404; }
      location ~ /_optimized/ { try_files $uri =404; }

      # attachments must go through the rails application to get the right content-disposition header
      proxy_set_header X-Sendfile-Type X-Accel-Redirect;
      proxy_set_header X-Accel-Mapping $public/=/downloads/;
      proxy_pass http://unicorn_server;
      break;
    }

    try_files $uri @discourse;
  }

  location /downloads/ {
    internal;
    alias $public/;
  }

  location @discourse {
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header Host $http_host;

    proxy_pass http://unicorn_server;
  }

  # this rewrites all the requests to the maintenance.html
  # page if it exists in the doc root. This is for capistrano's
  # disable web task
  if (-f $document_root/system/maintenance.html)
  {
    rewrite  ^(.*)$  /system/maintenance.html last;
    break;
  }

  error_page   500 502 503 504  /500.html;
  location = /500.html
  {
    root <%= Rubber.root + "/public" %>;
  }
  error_page 404  /404.html;
  location = /404.html
  {
    root <%= Rubber.root + "/public" %>;
  }
}