RolePermissionService::validatePermission

protected function validatePermission($permissionSet, $action, $permission): bool
{
	return isset($permissionSet[$action]) && isset($permission['value']) && in_array($permission['value'], [
			CCrmPerms::PERM_ALL,
			CCrmPerms::PERM_DEPARTMENT,
			CCrmPerms::PERM_NONE,
			CCrmPerms::PERM_SUBDEPARTMENT,
			CCrmPerms::PERM_OPEN,
			CCrmPerms::PERM_SELF,
			0
		]);
}