Facebook_ion_auth dont save user after authorization - access_token empty

[onthefrontline]

On library Facebook_ion_auth.php, after authorization, access_token comes empty.

In this line:

$response = file_get_contents($token_url);
$params = null;
parse_str($response, $params);

I have to add two lines:

$json = json_decode($response, true); //decode response to get access_token
$params['access_token'] = $json['access_token'];

And works.

[vlahx]

Maybe that changes helps:

$this->CI->load->config('facebook_ion_auth', TRUE);
        $appid = $this->app_id = $this->CI->config->item('app_id');
		$redir = $this->my_url = $this->CI->config->item('redirect_uri');
        $appsecret = $this->app_secret = $this->CI->config->item('app_secret');
        $scope = $this->scope = $this->CI->config->item('scope');

//////////////////////////////////////////////////////////////////////////////////////////////////////////

$token_url = "https://graph.facebook.com/oauth/access_token?"
                    . "client_id=" . $appid . "&redirect_uri=" . $redir
                    . "&client_secret=" . $appsecret . "&code=" . $code;
                $response = json_decode(file_get_contents($token_url));
                $this->CI->session->set_userdata('access_token', $response->access_token);		
                $graph_url = "https://graph.facebook.com/me?access_token=".$response->access_token . '&fields=name,id,email';

//////////////////////////////////////////////////////////////////////////////////////////////////////////////

$graph_url = "https://graph.facebook.com/me?access_token=".$response->access_token . '&fields=name,id,email,picture';
                $user = json_decode(file_get_contents($graph_url));
                // check if this user is already registered
                if(!$this->CI->ion_auth_model->identity_check($user->email)){
                    $name = explode(" ", $user->name);
                    $register = $this->CI->ion_auth->register($user->name, 'facebookdoesnothavepass123^&*%', $user->email, array('first_name' => $name[0], 'last_name' => $name[1]));
                   $login = $this->CI->ion_auth->login($user->email, 'facebookdoesnothavepass123^&*%', 1);
                } else {
                   $login = $this->CI->ion_auth->login($user->email, 'facebookdoesnothavepass123^&*%', 1);
                }
                return true;

Because $token_url returned with empty fields, i made these changed and use .$response->access_token instead $params['access_token'], of course using json_encode.

For me, its working wonderfull.