/**
* Authorize the tree.
*
* @param TreeBuilder $builder
*/
public function authorize(TreeBuilder $builder)
{
// Try the option first.
$permission = $builder->getTreeOption('permission');
/*
* If the option is not set then
* try and automate the permission.
*/
if (!$permission && ($module = $this->modules->active()) && ($stream = $builder->getTreeStream())) {
$permission = $module->getNamespace($stream->getSlug() . '.read');
}
if (!$this->authorizer->authorize($permission)) {
abort(403);
}
}
