function protected_node_init in Protected Node 6

Same name and namespace in other branches

1. 7 protected_node.module \protected_node_init()
2. 1.0.x protected_node.module \protected_node_init()

Implementation of hook_init(). @link http://api.drupal.org/api/function/hook_init/6

File

./protected_node.module, line 148

Code

function protected_node_init() {
  global $user;

  // are we about to display a node?
  // can user see all nodes anyway?
  if (user_access('bypass password protection')) {
    return;
  }
  $nid = FALSE;
  $param2 = arg(2);
  if (arg(0) == 'node' && is_numeric(arg(1))) {
    if ($param2 === NULL) {
      $nid = protected_node_is_locked(arg(1), 'view');
      if ($nid === -1) {
        return;
      }
    }
    elseif ($param2 == 'edit' || $param2 == 'delete') {
      $nid = protected_node_is_locked(arg(1), $param2);
    }
    else {

      // any access right?
      $nid = protected_node_is_locked(arg(1));
    }
    if ($nid === TRUE || $nid === -1) {
      drupal_access_denied();
      exit;
    }
  }
  elseif (arg(0) == 'system' && arg(1) == 'files') {
    if (!empty($param2)) {

      // $param2 is a filename in this case
      $nid = protected_node_and_attachment($param2);
    }
  }
  if ($nid) {
    $query = drupal_get_destination();
    if (!empty($_SERVER['HTTP_REFERER'])) {
      $query .= '&back=' . urlencode($_SERVER['HTTP_REFERER']);
    }
    $query .= '&protected_page=' . $nid;
    drupal_goto('protected-node', $query);
  }
}