为某些节点发出403

hook_nodeapi()

$op = load

$op = view

function mymodule_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
  switch ($op) {
    case 'view':
      drupal_access_denied();
      exit();
      break;
  }
}

hook_init()

function mymodule_init() {
  $nodes_403 = array(42, 69, 187);
  if (arg(0) == 'node' && in_array(arg(1), $nodes_403))
    drupal_access_denied();
    exit();
  }
}

node access rights

hook_access()

function mymodule_access($op, $node, $account) {
  $nodes_403 = array(42, 69, 187);

  if (in_array($node->nid, $nodes_403)) {
    return FALSE;
  }
}

access callback

function mymodule_menu_alter(&$items) {
  $items['node/%node']['access callback'] = 'mymodule_access';
}

function mymodule_access($op, $node, $account = NULL) {
  $nodes_403 = array(42, 69, 187);

  if ($op == 'view' && in_array($node->nid, $nodes_403)) {
    return FALSE;
  }

  return node_access($op, $node, $account);
}

hook_menu_alter()