CRestUtil::checkAuth

static function checkAuth($query, $scope, &$res)
{
	// compatibility fix: other modules use checkAuth instead of /rest/download
	if(!is_array($query))
	{
		$query = array('auth' => $query);
	}

	foreach(GetModuleEvents('rest', 'OnRestCheckAuth', true) as $eventHandler)
	{
		$eventResult = ExecuteModuleEventEx($eventHandler, array($query, $scope, &$res));
		if($eventResult !== null)
		{
			return $eventResult;
		}
	}

	$res = array(
		"error" => "NO_AUTH_FOUND",
		"error_description" => "Wrong authorization data",
	);

	return false;
}