Re: Facebook & Session Component

Basically, I'm loosing my CakePHP session after using Facebook's multifriend selector... any ideas? :S Is this something related with Cake security??

2010/9/30 Hugo M <ham1988@gmail.com>

Hi! I'm making a FB Connect site. I have a multi-friend selector. When i send invitations, the user is sent to root. Root is albums/index (because there are picture cards albums). Because the application could have only one album, when I just have one album I sent the user straight to that album.

So I have:


    function index() {
        $albums = $this->Album->find('all');

        //If there's only 1 album, we go straight to the album!
        if (count($albums) == 1) {
            $this->choose($albums[0]['Album']['id']);
        }
    }

    function choose($aid) {
        $album = $this->Album->findByIdAndApplicationId($aid,Configure::read('Application.id'));

        if (empty($album)) {
            throw new Exception("Invalid album id");
            //$this->getBack("Invalid album");
        }

        $this->Session->write('Auth.User.album_id', $aid);
        $this->Session->write('Auth.User.album_name',$album['Album']['name']);
        $this->redirect('/albums/view');
    }

function view($page = 1) {
        $uid = $this->Auth->user('user_id');
        $this->loadModel('User');
        $user = $this->User->find('first', array(
            'contain'=>array(
                'Card'
            ),
            'conditions'=>array('User.id'=>$uid)
        ));
        $cardsPerPage = Configure::read('Album.CardsPerPage');
        $offset = ($page-1) * $cardsPerPage;
        if (!$this->Session->check('Auth.User.album_id')) {

//HERE IS THE PROBLEM

                    $this->Session->setFlash("Choose an album");
                    $this->redirect('/albums/');
        }

The problem is that for some reason, this

    $this->Session->write('Auth.User.album_id', $aid);
        $this->Session->write('Auth.User.album_name',$album['Album']['name']);

is lost when I redirect to albums/view, then this code is executed:

   $this->Session->setFlash("Choose an album");
                    $this->redirect('/albums/');

And I have an infinite loop.

Why this could happen? All other Session variables are ok when I do a debug. Only that variables are lost.

This problem appears ONLY when I come from a Facebook callback (like after sending invitations, or clicking in a Facebook link). When I go to /albums/index by myself I am well redirected to albums/view with the only album selected.

I think may have to do with the fact I'm using Auth.User session space to store other fields.... but it's strange it only happens with Facebook.

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