gistfile1.php

<?php

function before($route)
{
  # Authentication if required
  $uri = request_uri();
  $is_admin = preg_match('%^/admin(/.+)?$%', $uri);
  $auth_required =  $is_admin && $uri != "/admin/login" && $uri != "/admin/logout";
  if($auth_required) authentication_is_required();
  
  # Layouts
  $layout_name= $is_admin ? 'admin' : 'default';
  $layout_path = "layouts/{$layout_name}.html.php";
  layout($layout_path);
  if(option('env') > ENV_DEVELOPMENT) error_layout($layout_path);
  
  # other ui options
  if($is_admin)
  {
    before_admin();
  }
  else
  {
    $is_file = preg_match('%^/(.+)/\d+/file/(\w+)?$%', $uri);
    if(!$is_file) before_public();
  }
}