jwt.php

<?php
 
namespace Bitrix\Pull\Auth;
 
use Bitrix\Main;
use Bitrix\Pull\Config;
 
final class Jwt
{
    public const DEFAULT_TTL = 12 * 3600;
 
    public static function create(array $channels = [], int $userId = 0, array $options = []): array
    {
        if (empty($channels) && $userId === 0)
        {
            throw new Main\ArgumentException("Either channel list or user id must be specified");
        }
 
        $ttl = is_integer($options['ttl']) && $options['ttl'] > 0 ? $options['ttl'] :  self::DEFAULT_TTL;
 
        $time = time();
        $exp = $time + $ttl;
        $data = [
            'iss' => (string)Config::getHostId(),
            'iat' => $time,
            'exp' => $exp,
        ];
        if ($userId > 0)
        {
            $data['sub'] = (string)$userId;
        }
        if (!empty($channels))
        {
            $data['chan'] = implode(',', $channels);
        }
        $secret = Config::getSignatureKey();
 
        return [Main\Web\JWT::encode($data, $secret), $exp];
    }
 
    public static function decode(string $jwt, string $secret)
    {
        return Main\Web\JWT::decode($jwt, $secret);
    }
}