/home/kueuepay/public_html/vendor/league/oauth2-server/src/Entities/Traits/AccessTokenTrait.php
<?php
/**
 * @author      Alex Bilbie <hello@alexbilbie.com>
 * @copyright   Copyright (c) Alex Bilbie
 * @license     http://mit-license.org/
 *
 * @link        https://github.com/thephpleague/oauth2-server
 */

namespace League\OAuth2\Server\Entities\Traits;

use DateTimeImmutable;
use Lcobucci\JWT\Configuration;
use Lcobucci\JWT\Signer\Key\InMemory;
use Lcobucci\JWT\Signer\Rsa\Sha256;
use Lcobucci\JWT\Token;
use League\OAuth2\Server\CryptKey;
use League\OAuth2\Server\Entities\ClientEntityInterface;
use League\OAuth2\Server\Entities\ScopeEntityInterface;

trait AccessTokenTrait
{
    /**
     * @var CryptKey
     */
    private $privateKey;

    /**
     * @var Configuration
     */
    private $jwtConfiguration;

    /**
     * Set the private key used to encrypt this access token.
     */
    public function setPrivateKey(CryptKey $privateKey)
    {
        $this->privateKey = $privateKey;
    }

    /**
     * Initialise the JWT Configuration.
     */
    public function initJwtConfiguration()
    {
        $this->jwtConfiguration = Configuration::forAsymmetricSigner(
            new Sha256(),
            InMemory::plainText($this->privateKey->getKeyContents(), $this->privateKey->getPassPhrase() ?? ''),
            InMemory::plainText('empty', 'empty')
        );
    }

    /**
     * Generate a JWT from the access token
     *
     * @return Token
     */
    private function convertToJWT()
    {
        $this->initJwtConfiguration();

        return $this->jwtConfiguration->builder()
            ->permittedFor($this->getClient()->getIdentifier())
            ->identifiedBy($this->getIdentifier())
            ->issuedAt(new DateTimeImmutable())
            ->canOnlyBeUsedAfter(new DateTimeImmutable())
            ->expiresAt($this->getExpiryDateTime())
            ->relatedTo((string) $this->getUserIdentifier())
            ->withClaim('scopes', $this->getScopes())
            ->getToken($this->jwtConfiguration->signer(), $this->jwtConfiguration->signingKey());
    }

    /**
     * Generate a string representation from the access token
     */
    public function __toString()
    {
        return $this->convertToJWT()->toString();
    }

    /**
     * @return ClientEntityInterface
     */
    abstract public function getClient();

    /**
     * @return DateTimeImmutable
     */
    abstract public function getExpiryDateTime();

    /**
     * @return string|int
     */
    abstract public function getUserIdentifier();

    /**
     * @return ScopeEntityInterface[]
     */
    abstract public function getScopes();

    /**
     * @return string
     */
    abstract public function getIdentifier();
}
Best Practice

Best Practices

To ensure a smooth integration process and optimal performance, follow these best practices:

  1. Use secure HTTPS connections for all API requests.
  2. Implement robust error handling to handle potential issues gracefully.
  3. Regularly update your integration to stay current with any API changes or enhancements.