/**
* Setup a default Facebook app
**/
public function requireDefaultRecords()
{
$facebook = FacebookApp::get()->count();
if (!$facebook) {
$facebook = FacebookApp::create();
$facebook->write();
}
}
/**
* Log the user in via an existing Facebook account connection.
*
* @return SS_HTTPResponse
**/
public function login()
{
$form = $this->Form();
if ($this->request->getVar("error")) {
$form->sessionMessage("Unable to obtain access to Facebook.", "bad");
return $this->renderWith(array("FacebookController", "Page", "Controller"));
}
$facebookApp = FacebookApp::get()->first();
if (!$facebookApp || !$facebookApp->EnableFacebookLogin) {
$form->sessionMessage("Facebook Login is disabled.", "bad");
} else {
if ($member = Member::currentUser()) {
$member->logOut();
}
$facebook = $facebookApp->getFacebook();
$user = $facebook->getUser();
if ($user) {
$member = Member::get()->filter("FacebookUserID", $user)->first();
if ($member) {
$member->logIn();
$form->sessionMessage("You have logged in with your Facebook account.", "good");
$member->extend("onAfterMemberLogin");
} else {
if ($facebookApp->EnableFacebookSignup) {
// Attempt to sign the user up.
$member = new Member();
// Load the user from Faceook
$user_profile = $facebook->api("/me");
if ($user_profile) {
// Fill in the required fields.
$access_token = Session::get("fb_" . $facebookApp->FacebookConsumerKey . "_access_token");
$signup = $member->connectFacebookAccount($user_profile, $access_token, $facebookApp->config()->get("required_user_fields"));
if ($signup->valid()) {
$member->logIn();
$form->sessionMessage("You have signed up with your Facbeook account.", "good");
// Facebook Hooks
$this->extend("onAfterFacebookSignup", $member);
} else {
$form->sessionMessage($signup->message(), "bad");
}
} else {
$form->sessionMessage("Unable to load your Facbeook account.", "bad");
}
} else {
$form->sessionMessage("Unable to log in with Facebook.", "bad");
}
}
} else {
$params = $facebookApp->getLoginUrlParams();
$url = $facebook->getLoginUrl($params);
if ($url) {
return $this->redirect($url, 302);
} else {
$form->sessionMessage("Unable to login to Facebook at this time.", "bad");
}
}
}
// Extend Failed facebook login
if (!Member::currentUser()) {
$this->extend("onAfterFailedFacebookLogin");
}
return $this->renderWith(array("FacebookController", "Page", "Controller"));
}
/**
* Returns the client_* params for OAuth requests.
*
* @return array
*/
protected function getClientParams()
{
return ['client_id' => $this->app->getId(), 'client_secret' => $this->app->getSecret()];
}
/**
* Fetches the sites Facebook Applications.
*
* @return FacebookApp
**/
public function getFacebookApp()
{
return FacebookApp::get()->first();
}
/**
* Returns the Facebook App for the current site.
*
* @return FacebookApp
**/
public function getFacebookApp()
{
if ($this->facebook) {
return $this->facebook;
}
return $this->facebook = FacebookApp::get()->first();
}
/**
* Clears out the facebook session keys.
**/
public function memberLoggedOut()
{
$facebookApp = FacebookApp::get()->first();
if ($facebookApp) {
foreach (array('state', 'code', 'access_token', 'user_id') as $key) {
Session::clear("fb_" . $facebookApp->FacebookConsumerKey . "_" . $key);
}
}
}
