<?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:----NzY5ODMyNjgzNjgwMzM3MyAzNTk3NTMwMjk1NjAxODA2IDMzMzExMDk0NDUwNzM4NA==