<?php

namespace ActivityPub\Auth;

use ActivityPub\Objects\ObjectsService;
use Exception;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpKernel\KernelEvents;

/**
 * The AuthListener class answers the question, "is this request authorized
 * to act on behalf of this Actor?"
 *
 * It delegates most of the work to a passed-in Callable to allow library clients to
 * plug in their own authentication methods.
 */
class AuthListener implements EventSubscriberInterface
{
    /**
     * The Callable that is called to determine if a request is authorized for an Actor
     *
     * @var Callable
     */
    private $authFunction;

    /** @var ObjectsService */
    private $objectsService;

    /**
     * Constructs a new AuthenticationService
     *
     * @param Callable $authFunction A Callable that should accept
     * @param ObjectsService $objectsService
     */
    public function __construct(callable $authFunction, ObjectsService $objectsService)
    {
        $this->authFunction = $authFunction;
        $this->objectsService = $objectsService;
    }

    public static function getSubscribedEvents()
    {
        return array(
            KernelEvents::REQUEST => 'checkAuth'
        );
    }

    public function checkAuth(GetResponseEvent $event)
    {
        $request = $event->getRequest();
        if ( $request->attributes->has( 'actor' ) ) {
            return;
        }
        $actorId = call_user_func( $this->authFunction );
        if ( $actorId && !empty( $actorId ) ) {
            $actor = $this->objectsService->dereference( $actorId );
            if ( !$actor ) {
                throw new Exception( "Actor $actorId does not exist" );
            }
            $request->attributes->set( 'actor', $actor );
        }
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NzYzOTg3MDg3ODgzNTAzIDUzMjM3NjQ0MDIxODI1NjMgNDIzNjY3MTc3OTYzMDM1Ng==