<?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:----NTgzNzE4NzQzODE1NzkwMyA2MDIwMDAxNDg0NDg2ODExIDE3OTc4OTk5MzM0NjQ5NzI=