/home/kueuepay/public_html/vendor/laravel/passport/src/Http/Middleware/CheckCredentials.php
<?php

namespace Laravel\Passport\Http\Middleware;

use Closure;
use Laravel\Passport\Exceptions\AuthenticationException;
use Laravel\Passport\TokenRepository;
use League\OAuth2\Server\Exception\OAuthServerException;
use League\OAuth2\Server\ResourceServer;
use Nyholm\Psr7\Factory\Psr17Factory;
use Symfony\Bridge\PsrHttpMessage\Factory\PsrHttpFactory;

abstract class CheckCredentials
{
    /**
     * The Resource Server instance.
     *
     * @var \League\OAuth2\Server\ResourceServer
     */
    protected $server;

    /**
     * Token Repository.
     *
     * @var \Laravel\Passport\TokenRepository
     */
    protected $repository;

    /**
     * Create a new middleware instance.
     *
     * @param  \League\OAuth2\Server\ResourceServer  $server
     * @param  \Laravel\Passport\TokenRepository  $repository
     * @return void
     */
    public function __construct(ResourceServer $server, TokenRepository $repository)
    {
        $this->server = $server;
        $this->repository = $repository;
    }

    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @param  mixed  ...$scopes
     * @return mixed
     *
     * @throws \Laravel\Passport\Exceptions\AuthenticationException
     */
    public function handle($request, Closure $next, ...$scopes)
    {
        $psr = (new PsrHttpFactory(
            new Psr17Factory,
            new Psr17Factory,
            new Psr17Factory,
            new Psr17Factory
        ))->createRequest($request);

        try {
            $psr = $this->server->validateAuthenticatedRequest($psr);
        } catch (OAuthServerException $e) {
            throw new AuthenticationException;
        }

        $this->validate($psr, $scopes);

        return $next($request);
    }

    /**
     * Validate the scopes and token on the incoming request.
     *
     * @param  \Psr\Http\Message\ServerRequestInterface  $psr
     * @param  array  $scopes
     * @return void
     *
     * @throws \Laravel\Passport\Exceptions\MissingScopeException|\Illuminate\Auth\AuthenticationException
     */
    protected function validate($psr, $scopes)
    {
        $token = $this->repository->find($psr->getAttribute('oauth_access_token_id'));

        $this->validateCredentials($token);

        $this->validateScopes($token, $scopes);
    }

    /**
     * Validate token credentials.
     *
     * @param  \Laravel\Passport\Token  $token
     * @return void
     *
     * @throws \Laravel\Passport\Exceptions\AuthenticationException
     */
    abstract protected function validateCredentials($token);

    /**
     * Validate token scopes.
     *
     * @param  \Laravel\Passport\Token  $token
     * @param  array  $scopes
     * @return void
     *
     * @throws \Laravel\Passport\Exceptions\MissingScopeException
     */
    abstract protected function validateScopes($token, $scopes);
}
Path: home/kueuepay/public_html/vendor/laravel/passport/src/Http/Middleware
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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.
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