Nginx – How to convert Apache rewrite rules to nginx

Try this

server {
  error_page   405   = @handler;
  error_page   404   = @handler;

  location / {
    if (-f $request_filename) {
      break;
    }

    if (!-e $request_filename) {
      rewrite . /index.php last;
    }
  }

  location @handler { 
    rewrite / /index.php;
  }

  location ~ \.php/ {
    rewrite ^(.*.php)/ $1 last;
  }

  location ~ \.php$ {
    if (!-e $request_filename) { rewrite / /index.php last; }

    fastcgi_pass   127.0.0.1:9000;
    fastcgi_index  index.php;
    fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
    include        fastcgi_params;
  }

}

And in your fastcgi_params

fastcgi_param  QUERY_STRING       $query_string;
fastcgi_param  REQUEST_METHOD     $request_method;
fastcgi_param  CONTENT_TYPE       $content_type;
fastcgi_param  CONTENT_LENGTH     $content_length;

fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
fastcgi_param  REQUEST_URI        $request_uri;
fastcgi_param  DOCUMENT_URI       $document_uri;
fastcgi_param  DOCUMENT_ROOT      $document_root;
fastcgi_param  SERVER_PROTOCOL    $server_protocol;

fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
fastcgi_param  SERVER_SOFTWARE    nginx/$nginx_version;

fastcgi_param  REMOTE_ADDR        $remote_addr;
fastcgi_param  REMOTE_PORT        $remote_port;
fastcgi_param  SERVER_ADDR        $server_addr;
fastcgi_param  SERVER_PORT        $server_port;
fastcgi_param  SERVER_NAME        $server_name;

# PHP only, required if PHP was built with --enable-force-cgi-redirect
fastcgi_param  REDIRECT_STATUS    200;

Disclaimer: None of the following are tested. Please use it with caution. If anything goes wrong, please turn on debugging as mentioned at http://nginx.org/en/docs/debugging_log.html .

See if it's a real file or directory, if so, serve it,
then send all requests for / to Director.php

This may be achieved with...

server {
  index Directory.php;
  location / {
    try_files $uri $uri/ /Directory.php;
  }
}

The index directive is enough for directory index. To send all requests to Director.php, then location block is needed.

If the URL has one segment, pass it as rt

You may try the following...

rewrite "^/([a-zA-Z0-9\-\_]+)/$" "/Director.php?rt=$1" last;

Please remember the quotes around the rewrites. It is preferable to use quotes, and is needed on certain conditions (that is mentioned in the link provided earlier by @jerm).

If the URL has two segments, pass it as rt and action

You may try the following...

rewrite "^/([a-zA-Z0-9\-\_]+)/([a-zA-Z0-9\-\_]+)/$" "/Director.php?rt=$1&action=$2" last;

Please note that I haven't done anything for QSA in the above examples. You may try $args variable in Nginx to pass the existing query string to the new query string. Ref: http://nginx.org/en/docs/http/ngx_http_core_module.html#variables

I hope that helps to arrive at the full working solution!