/**
* Get an instance of the Facebook object for API calls
*
* @return Facebook
*/
public static function getFacebookPlatform()
{
if (self::$_facebookPlatform === null) {
// using different facebook sdk
self::$_facebookPlatform = new Facebook(array('appId' => self::getApiKey(), 'secret' => self::getAppSecret(), 'cookie' => true));
}
return self::$_facebookPlatform;
}
/**
* Gets information about the user
*
* @param array $fields
* @return array
*/
public function getFacebookInfo()
{
$facebookUid = $this->getCurrentFacebookUid();
$userInfo = null;
if ($facebookUid) {
try {
$userInfo = sfFacebookGraph::getCurrentUserInfo();
} catch (Exception $e) {
}
}
return $userInfo;
}
/**
* Executes the filter chain.
*
* @param sfFilterChain $filterChain
*/
public function execute($filterChain)
{
$facebookUid = sfFacebookGraph::getCurrentUser();
$user = $this->context->getUser();
// check for logged in user
if ($facebookUid && !$user->isFacebookConnected()) {
sfFacebookGraphUserProfile::getCurrentFacebookUser($user);
}
// check for logged out
if ($user->isFacebookAuthenticated() && !$user->isFacebookConnected()) {
$user->signOut();
}
$filterChain->execute();
}
/**
* Get Facebook logout url for user
*
* @return string
*/
public function getFacebookLogoutUrl()
{
return sfFacebookGraph::getFacebookPlatform()->getLogoutUrl();
}
/**
* Get Facebook logout url for user
*
* @param string $redirect
*
* @return string
*/
public function getFacebookLogoutUrl($redirect = '')
{
$params = array();
if ($redirect) {
$params['next'] = $redirect;
}
return sfFacebookGraph::getFacebookPlatform()->getLogoutUrl($params);
}
