<?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:----Njc1NjQxMjc1OTE4MDIxNiAxMzM5NDk2ODY3MDAyODY1IDc3Mjk3MjkzNTAyMjQ4ODI=