<?php
/**
 *   * What's interesting to do with this method?
 *   * Return an ETag header that's a hash of the outline?
 *       * Helpful in conjunction with selectors to detect change to suboutline when update sent? 
 */
global $key, $selector, $driver;
xoxoioInit();

list($orig_doc, $orig_root_node) = fetchOutlineWithSelector($key, $selector);
if (!$orig_doc) return $driver->show404();

header("HTTP/1.1 200 OK", 200);
header("Content-Type: application/xhtml+xml; charset=utf8");
header("Etag: ".buildEtagForOutlineNode($orig_doc, $orig_root_node));

$data = $orig_doc->saveXML($orig_root_node);
header("Content-Length: ".strlen($data));
?>