Fix for facebook was not playing along with nette sessions

FacebookPresenter.php

<?php

namespace UserModule;

use FixFacebook;

class FacebookPresenter extends AbstractSignPresenter
{

    public function actionLogin()
    {
        $this->redirectUrl($this->getFacebook()->getLoginUrl(array(
            'scope' => array('email'),
            'redirect_uri' => $this->link('//default', array(
                'backlink' => $this->backlink,
            )),
        )));
    }

    public function actionDefault()
    {
        if ($this->getParam('error') == 'access_denied' && $this->getParam('error_reason') == 'user_denied') {
            $this->flashMessage('You have canceled authentication!', 'error');
            $this->redirect('Sign:in');
        }

        $facebook = $this->getFacebook();

        $userId = $facebook->getUser();
        if ($userId) {
            $attributes = $facebook->api('/me', 'GET');
            $attributes['user_id'] = $userId;
            $email = $attributes['email'];
            $user = $this->database->user->getByEmail($email);
            if (!$user) {
                $registration = $this->session->getSection('registration');
                $registration['email'] = $email;
                $registration['service'] = 'Facebook';
                $registration['attributes'] = $attributes;
                $this->session->close();
                $this->redirect('Registration:', array(
                    'backlink' => $this->backlink,
                ));
            } else {
                $this->getUser()->login('Facebook', $attributes);
                $this->flashMessage('You have been successfully signed in.');
                $this->getApplication()->restoreRequest($this->backlink);
                $this->redirect($this->afterSignIn);
            }
        } else {
            $this->flashMessage('Something went wrong with authentication via Facebook. Please <a href="%s" class="facebook">try again</a> or use <a href="%s" class="sign-in">Sign-In</a>.', array(
                $this->link('login'),
                $this->link('Sign:in'),
            ));
        }
    }

    /**
     * @return FixFacebook
     */
    private function getFacebook()
    {
        $parameters = $this->context->parameters['services']['facebook']['app'];
        return new FixFacebook(array(
            'appId' => $parameters['id'],
            'secret' => $parameters['secret'],
        ), $this->session);
    }

}

FixFacebook.php

<?php

class FixFacebook extends BaseFacebook
{

    /**
     * @var Nette\Http\Session
     */
    private $session;

    public function __construct($config, Nette\Http\Session $session)
    {
        $this->session = $session->getSection('facebook');
        $session->start();
        parent::__construct($config);
    }

    protected static $kSupportedKeys =
        array('state', 'code', 'access_token', 'user_id');

    protected function setPersistentData($key, $value)
    {
        if (!in_array($key, self::$kSupportedKeys)) {
            self::errorLog('Unsupported key passed to setPersistentData.');
            return;
        }

        $this->session[$key] = $value;
    }

    protected function getPersistentData($key, $default = false)
    {
        if (!in_array($key, self::$kSupportedKeys)) {
            self::errorLog('Unsupported key passed to getPersistentData.');
            return $default;
        }

        return isset($this->session[$key]) ? $this->session[$key] : $default;
    }

    protected function clearPersistentData($key)
    {
        if (!in_array($key, self::$kSupportedKeys)) {
            self::errorLog('Unsupported key passed to clearPersistentData.');
            return;
        }

        unset($this->session[$key]);
    }

    protected function clearAllPersistentData()
    {
        foreach (self::$kSupportedKeys as $key) {
            $this->clearPersistentData($key);
        }
    }

}