Drupal - Amazon Elastic Load Balancer HTTPS Settings

elb.aws.settings.inc

<?php

/**
 * @file
 * Amazon Elastic Load Balancer Settings.
 *
 * Force server to use https:// path if SSL is handled at load balancer.
 *
 * @see http://drupal.org/node/185161#comment-5452038
 */


// We're running HTTPS natively in the web server.
if ( isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' ) {
  $base_root = 'https';
}
// We're behind a proxy that talks to the web server via HTTP.
elseif ( isset($_SERVER['HTTP_X_FORWARDED_PROTO']) ) {
  $base_root = $_SERVER['HTTP_X_FORWARDED_PROTO'];
}
// There's no HTTPS spoor -- we must be running HTTP.
else {
  $base_root = 'http';
}

$base_url = $base_root .= '://'. $_SERVER['HTTP_HOST'];

// $_SERVER['SCRIPT_NAME'] can, in contrast to $_SERVER['PHP_SELF'], not be modified by a visitor.
if ( $dir = trim(dirname($_SERVER['SCRIPT_NAME']), '\,/') ) {
  $base_path = "/$dir";
  $base_url .= $base_path;
  $base_path .= '/';
}
else {
  $base_path = '/';
}