www.content-rich-site.com/I_don't_want_to_see_a_404

I think this is a bug in common.inc / menu.inc 404 handling.

It sets the active menu handler to the path "i404" and then calls menu_execute_active_handler() which just fetches the path back out of _GET[q] again.

So it can't call the i404 callback: it tries again to find q, fails and then runs its backup simple "page not found" display.

I'm new to drupal, but I think that menu_execute_active_handler shouldn't get it from _GET but should check what has been set as the active handler.

Or it might be that this i404 module won't work under the new system ? Can't see where to do it anyway.

Nevertheless there might be 'page not found' errors. Instead of searching the content of nodes with the incoming URL pieces I suggest searching the URL aliases!

Here's my version of ii404:

function ii404_help($section) {
  switch ($section) {
    case 'admin/modules#description':
      return t('Perform a search when a page is not found.');
  }
}
function ii404_menu() {
  $items[] = array('path' => 'ii404',
    'title' => t('Page not found'),
    'callback' => 'ii404_page',
    'access' => 1,
    'type' => MENU_CALLBACK);
  return $items;
}
function ii404_page() {
  drupal_set_header('HTTP/1.0 404 Not Found');  // needed esp. for gsitemap to work
  drupal_set_title(t("Page not found"));
  // These are words that should be ignored in the URL
  $no = array("dump", "zip", "avi", "a", "de", "en", "html");
  $uri = $_SERVER['SERVER_PROTOCOL'];
  $uri = strtolower(substr($uri, 0, strpos($uri, '/')));
  $uri .= "://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
  global $base_url;
  $uri = substr($uri, strlen($base_url) + 1);
  $uri = urldecode($uri);
  $output = "<p>".t("The page you requested was not found:")." $base_url/$uri</p>";
  $output.= "<p>".t("Maybe it is still available on the")." <a href=\"http://www.formerwebserver.url/$uri\">".t("former webserver")."</a>.</p>";

  
  $keys = split("[^A-Za-z]+", $uri);
  $keys = array_diff($keys, $no);
  //$keys = trim(implode(" ", $keys));

if ($keys) {
  $where = implode ('%\' or dst like \'%', $keys);
  $where = "dst like '%".$where."%'";
  $dstsql = "SELECT * FROM {url_alias} WHERE ".$where." ORDER BY dst ASC LIMIT 0,33";
  $result = db_query($dstsql);

    if ($result) {
//      $output .= t("<p>For your convenience, a search was performed using the query '<i>%keys</i>':</p>", array("%keys" => $keys));
	  while ($data = db_fetch_object($result)) {
		$list[] = (l($data->dst, $data->src));
	  }
	  $output.= theme('item_list', $list, "Similar links");

    }
    else {
//      $output.= t("<p>A search was performed for '<i>%keys</i>', but nothing was found.</p>", array("%keys" => $keys));
    }


  print theme('page', $output);
}

}