function path_alias_xt_url_inbound_alter in Extended Path Aliases 7

Implements hook_url_inbound_alter().

File

./path_alias_xt.module, line 75

Extended Path Aliases.

Code

function path_alias_xt_url_inbound_alter(&$path, $original_path, $path_language) {

  // While drupal_get_path_alias() can't be overridden, drupal_get_normal_path()
  // does let us augment its behaviour by implementing this hook.
  // The system path as calculated and passed to us by drupal_get_normal_path(),
  // when no alternative system path was found by that function, we apply our
  // algorithm to create an system (aka normal) path.
  // @see includes/path.inc
  // Remove whatever alterations PURL has done to determine the actual path.
  if (module_exists('purl') && purl_inited()) {
    $original_path = purl_get_normal_path($path);
  }
  if (!empty($original_path) && $path == $original_path) {

    // drupal_get_normal_path() did not find a system path.
    // See [#2162621]. This deals with special UTF characters in paths.
    // @todo: make this should be configurable?
    $candidate_alias = $original_path;

    // This needs to use explode() and not strrpos() / drupal_substr(), because
    // strrpos() is not unicode safe, so unicode characters can lead to an
    // endless loop.
    $parts = explode('/', $candidate_alias);
    $path_suffix = array();
    while (count($parts) > 0) {

      // If the truncated path exists as a menu item (incl. paged views), abort.
      // E.g.: we won't replace and extend the user alias 'admin' in this path:
      // admin/structure/block/manage/system/navigation/configure, because
      // admin/structure/block is in the menu-router table.
      if ($menu_item_path = _path_alias_xt_get_menu_item($candidate_alias)) {
        return;
      }
      array_unshift($path_suffix, array_pop($parts));
      $candidate_alias = implode('/', $parts);
      if ($src = drupal_lookup_path('source', $candidate_alias, $path_language)) {

        // If 'user' is aliased to MyAccount, then MyAccount/edit needs to
        // transform to 'user/123/edit'.
        if ($src == 'user') {
          global $user;
          $src .= '/' . $user->uid;
        }
        $path = $src . '/' . implode('/', $path_suffix);
        return;
      }
    }
  }
}