private function getSession()
{
//only try to find a session once even if we failed.
if ($this->fb_session_tried) {
return $this->fb_session;
}
if (!$this->fb_session) {
$userinfo = vB::getCurrentSession()->fetch_userinfo();
if ($userinfo['fbaccesstoken']) {
$this->setSession($userinfo['fbaccesstoken']);
}
}
if (!$this->fb_session) {
$authtoken = $this->getAuthFromPHPSession();
if ($authtoken) {
$this->setSession($authtoken);
}
}
if (!$this->fb_session) {
//The javascript helper uses cookies internally. We don't really want to be dealing
//with cookies here, however unwinding this make require getting deeper into the
//Facebook SDK than is prudent.
$helper = new Facebook\FacebookJavaScriptLoginHelper();
try {
$this->fb_session = $helper->getSession();
if ($this->fb_session) {
$this->fb_session->validate();
$this->storeInPHPSession($this->fb_session->getToken());
}
} catch (Facebook\FacebookAuthorizationException $e) {
//deliberate fallthrough. If we don't authorize we'll treat the
//user as not logged in but we will assume that FB is enabled.
//usually this means we have an expired token and the user will
//need to log in again.
$this->fb_session = null;
}
}
$this->fb_session_tried = true;
return $this->fb_session;
}
/**
* Autologin
*
* @param $arrCookieData The Data ot the Session-Cookies
* @return bool
*/
public function autologin($arrCookieData)
{
$this->init_fb();
try {
$helper = new Facebook\FacebookJavaScriptLoginHelper();
$session = $helper->getSession();
if ($session) {
$me = $this->getMe($session);
if ($me) {
$uid = $me['uid'];
$userid = $this->pdh->get('user', 'userid_for_authaccount', array($uid, 'facebook'));
if ($userid) {
$userdata = $this->pdh->get('user', 'data', array($userid));
return $userdata ? $userdata : false;
}
}
}
} catch (Exception $e) {
$this->core->message($e->getMessage(), "Facebook Exception autologin()", 'red');
}
return false;
}
