PSR7-Middleware.md

PSR7 Middleware

Because PSR7 doesn't define an interface for the middleware, we assume the presence of the PSR ServerRequestInterface and ResponseInterface in your iddleware queue.

The example implementation here is assuming that your queue handler is a callable.

It should be very easy to implement the authentication library in a PSR7 middleware by using the AuthenticationService.

use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

/**
 * PSR 7 Authenticator Middleware
 */
class Psr7AuthenticationMiddleware extends AuthenticationMiddleware
{

    public function handle(ServerRequestInterface $request, ResponseInterface $response, callable $next)
    {
        $service = $this->provider->getAuthenticationService($request);
        $request = $this->addAttribute($request, $this->serviceAttribute, $service);

        $service->authenticate($request);

        $identity = $service->getIdentity();
        $request = $this->addAttribute($request, $this->identityAttribute, $identity);

        $response = $next($request, $response);
        if ($response instanceof ResponseInterface) {
            $result = $service->persistIdentity($request, $response);

            return $result->getResponse();
        }

        return $response;
    }
}