/home/kueuepay/www/vendor/league/oauth2-server/src/ResourceServer.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;

use League\OAuth2\Server\AuthorizationValidators\AuthorizationValidatorInterface;
use League\OAuth2\Server\AuthorizationValidators\BearerTokenValidator;
use League\OAuth2\Server\Exception\OAuthServerException;
use League\OAuth2\Server\Repositories\AccessTokenRepositoryInterface;
use Psr\Http\Message\ServerRequestInterface;

class ResourceServer
{
    /**
     * @var AccessTokenRepositoryInterface
     */
    private $accessTokenRepository;

    /**
     * @var CryptKey
     */
    private $publicKey;

    /**
     * @var null|AuthorizationValidatorInterface
     */
    private $authorizationValidator;

    /**
     * New server instance.
     *
     * @param AccessTokenRepositoryInterface       $accessTokenRepository
     * @param CryptKey|string                      $publicKey
     * @param null|AuthorizationValidatorInterface $authorizationValidator
     */
    public function __construct(
        AccessTokenRepositoryInterface $accessTokenRepository,
        $publicKey,
        AuthorizationValidatorInterface $authorizationValidator = null
    ) {
        $this->accessTokenRepository = $accessTokenRepository;

        if ($publicKey instanceof CryptKey === false) {
            $publicKey = new CryptKey($publicKey);
        }
        $this->publicKey = $publicKey;

        $this->authorizationValidator = $authorizationValidator;
    }

    /**
     * @return AuthorizationValidatorInterface
     */
    protected function getAuthorizationValidator()
    {
        if ($this->authorizationValidator instanceof AuthorizationValidatorInterface === false) {
            $this->authorizationValidator = new BearerTokenValidator($this->accessTokenRepository);
        }

        if ($this->authorizationValidator instanceof BearerTokenValidator === true) {
            $this->authorizationValidator->setPublicKey($this->publicKey);
        }

        return $this->authorizationValidator;
    }

    /**
     * Determine the access token validity.
     *
     * @param ServerRequestInterface $request
     *
     * @throws OAuthServerException
     *
     * @return ServerRequestInterface
     */
    public function validateAuthenticatedRequest(ServerRequestInterface $request)
    {
        return $this->getAuthorizationValidator()->validateAuthorization($request);
    }
}
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.