/**
* Returns a Facebook api instance.
*
* @return Facebook The instance
*/
public static function getFacebook() {
if (null === self::$facebook) {
self::$facebook = new Facebook(array(
'appId' => sfConfig::get('app_facebook_appId'),
'secret' => sfConfig::get('app_facebook_secret'),
'cookie' => sfConfig::get('app_facebook_cookie'),
));
}
return self::$facebook;
}
/**
* If a <code>Facebook</code> session if open signout from Facebook
* then redirect to <code>sfGuardAuthActions</code> signout.
* Else forward to <code>sfGuardAuthActions</code> signout.
*
* @param sfWebRequest $request
*/
public function executeSignout($request) {
$facebook = kdDoctrineGuardFacebookConnect::getFacebook();
$url = $this->getContext()->getRouting()->generate('sf_guard_signout', array(), true);
if ($facebook->getSession()) {
$url = $facebook->getLogoutUrl(array (
'next' => $url
));
$this->redirect($url);
}
$this->forward('sfGuardAuth', 'signout');
}
/**
* Executes the filter and chains.
*
* @param sfFilterChain $filterChain
*/
public function execute($filterChain) {
if ($this->isFirstCall() && $this->context->getUser()->isAnonymous()) {
$facebook = kdDoctrineGuardFacebookConnect::getFacebook();
$uid = $facebook->getUser();
try {
$me = $facebook->api('/me');
if ($me) {
$sfGuardUser = kdDoctrineGuardFacebookConnect::updateOrCreateUser($me);
$this->context->getUser()->signIn($sfGuardUser);
}
} catch (FacebookApiException $ex) {
$this->getContext()->getLogger()->err($ex);
}
}
$filterChain->execute();
}
/**
* Displays the connection form with a Facebook connect button
*/
public function executeSignin_form()
{
$this->facebook = kdDoctrineGuardFacebookConnect::getFacebook();
parent::executeSignin_form();
}
