## Based on 
## http://brainspl.at/nginx.conf.txt
## Thanks to Ezra and Err for this file and the config generator
## Modifed by Hendrik  to suit his needs

#user and group to run as
user  <%= config['user'] || "nginx" %> <%= config['group'] || "nginx" %>;

# number of nginx workers
worker_processes  2;

# pid of nginx master process
pid        <%= config['pid_path'] || 'logs/' %>nginx.pid;

# Number of worker connections. 1024 is a good default
events {
	worker_connections  1024;
}

# start the http module where we config http access.
http {
	# pull in mime-types. You can break out your config 
	# into as many include's as you want to make it cleaner
	include       <%= config['config_path'] || 'conf/' %>mime.types;

	# set a default type for the rare situation that
	# nothing matches from the mimie-type include
	default_type  application/octet-stream;

	# configure log format
	log_format  main  '$remote_addr - $remote_user [$time_local] $status '
                		'"$request" $body_bytes_sent "$http_referer" '
                		'"$http_user_agent" "http_x_forwarded_for"';

	# main access log
	access_log  <%= config['log_path'] || 'logs/' %>access.log  main;

	# main error log
	error_log  <%= config['log_path'] || 'logs/' %>error.log debug;
  #error_log logs/error.log debug_http;

	# no sendfile on OSX 
	sendfile        on;

	# These are good default values.
  tcp_nopush        on;
  tcp_nodelay       off;
  # output compression saves bandwidth 
  gzip            on;
  gzip_http_version 1.0;
  gzip_comp_level 2;
  gzip_proxied any;
  gzip_types      text/plain text/html text/css application/x-javascript text/xml application/xml 
                   application/xml+rss text/javascript;

	# this is where you define your mongrel clusters. 
	# you need one of these blocks for each cluster
	# and each one needs its own name to refer to it later.
<% config['sites'].each do |name, site| %>
<% next unless site['upstream'] %>
  upstream <%= name %> {
<% Array(site['upstream'] || site['upstreams']).each do |server| %>
    server <%= server %>;
<% end %>
  }
<% end %>

<% config['sites'].each do |name, site| %>
  # the server directive is nginx's virtual host directive.
  server {
    # port to listen on. Can also be set to an IP:PORT
    listen       80;

    # sets the domain[s] that this vhost server requests for
    server_name  <%= site['server_name'] %>;

    # doc root
    root <%= (config['root'][ site['root'] || 'default' ] || site['root']) % name %>;

    # vhost specific access log
    access_log  <%= config['log_path'] || 'logs/' %><%= name %>.access.log  main;

    #Set the max size for file uploads to 50Mb
    client_max_body_size  50M;

    # 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 $document_root/maintenance.html){
      rewrite  ^(.*)$  /maintenance.html last;
      break;
    }

<% if site['no_www'] %>
    if ($host ~* "www") {
      rewrite ^(.*)$ http://<%= site['server_name'].split.first %>$1 redirect;
      break;
    }
<% end %>

    location / {
<% Array(site['rewrite'] || site['rewrites']).each do |rewrite| %>
      rewrite <%= rewrite %> break;
<% end %>
<% Array(site['feed'] || site['feeds']).each do |feed_rewrite| %>
    if ($http_user_agent !~ FeedBurner) {
      rewrite <%= feed_rewrite %> break;
    }
<% end %>
<% if site['auth_file'] %>
      auth_basic            "<%= name %> requires credentials.";
      auth_basic_user_file  <%= site['auth_file'] %>;
<% end %>

      # needed to forward user's IP address to rails
      proxy_set_header  X-Real-IP  $remote_addr;

      # needed for HTTPS
      proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_redirect false;
      proxy_max_temp_file_size 0;

      # check for index.html for directory index
      # if its there on the filesystem then rewite 
      # the url to add /index.html to the end of it
      # and then break to send it to the next config rules.
      if (-f $request_filename/index.html) {
        rewrite (.*) $1/index.html break;
      }

      # this is the meat of the rails page caching config
      # it adds .html to the end of the url and then checks
      # the filesystem for that file. If it exists, then we
      # rewite the url to have explicit .html on the end 
      # and then send it on its way to the next config rule.
      # if there is no file on the fs then it sets all the 
      # necessary headers and proxies to our upstream mongrels
      if (-f $request_filename.html) {
        rewrite (.*) $1.html break;
      }

<% if site['upstream'] %>
      if (!-f $request_filename) {
        proxy_pass http://<%= name %>;
        break;
      }
<% end %>
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
      root   html;
    }
  }
<% end %>
}