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<?php
namespace Bitrix\Sender\Consent;
use Bitrix\Main\Web\Json;
use Bitrix\Sender\ContactTable;
use Bitrix\Sender\Transport;
use Bitrix\Main\ArgumentNullException;
use Bitrix\Main\Security\Sign\TimeSigner;
/**
* Class Consent
* @package Bitrix\Sender\Consent
*/
final class Consent
{
private const SALT = "SENDER_CONSENT_SALT";
/**
* @param string|null $code
*
* @return Transport\Adapter
* @throws \Bitrix\Main\ArgumentException
*/
private static function getTransport(?string $code): Transport\Adapter
{
static $transports = [];
if(!isset($transports[$code]))
{
$transports[$code] = Transport\Adapter::create($code);
}
return $transports[$code];
}
/**
* check if status equal 'deny' or consent request num is beyond the maximum
*
* @param string $status consent status
* @param int|null $requests int consent requests num
*
* @param string|null $code
*
* @return bool
* @throws ArgumentNullException
* @throws \Bitrix\Main\ArgumentException
* @throws \Bitrix\Main\ArgumentOutOfRangeException
*/
public static function isUnsub(string $status, ?int $requests, ?string $code): bool
{
return Consent::getTransport($code)->isConsentAvailable() &&
(
$status === ContactTable::CONSENT_STATUS_DENY ||
Consent::checkIfConsentRequestLimitExceeded($requests, $code) &&
$status !== ContactTable::CONSENT_STATUS_ACCEPT
);
}
/**
* check is consent request num is beyond the maximum
*
* @param int $requests
*
* @param string $code
*
* @return bool
* @throws \Bitrix\Main\ArgumentException
*/
public static function checkIfConsentRequestLimitExceeded(int $requests, string $code): bool
{
return $requests > Consent::getTransport($code)->getConsentMaxRequests();
}
/**
* sign $fields with contact parameters
* @param array $fields
*
* @return string
* @throws ArgumentNullException
* @throws \Bitrix\Main\ArgumentException
*/
public static function encodeTag(array $fields): string
{
if(isset($fields))
{
$signer = new TimeSigner();
$tagString = Json::encode($fields);
return $signer->sign($tagString,"+ 4 weeks", Consent::SALT);
}
throw new ArgumentNullException("fields");
}
/**
* return unsigned tag
* @param string $tag
*
* @return mixed
* @throws \Bitrix\Main\ArgumentException
* @throws \Bitrix\Main\Security\Sign\BadSignatureException
*/
public static function decodeTag(string $tag)
{
$signer = new TimeSigner();
$tag = $signer->unsign($tag,static::SALT);
return Json::decode($tag);
}
}