function loginFacebookUser()
{
$app = JFactory::getApplication();
$jfbcLibrary = JFBConnectFacebookLibrary::getInstance();
$fbUserId = $jfbcLibrary->getUserId(FALSE);
#echo "Con. Logging in FB User : "******"<br>";
require_once JPATH_ADMINISTRATOR . DS . 'components' . DS . 'com_jfbconnect' . DS . 'models' . DS . 'usermap.php';
$userMapModel = new JFBConnectModelUserMap();
$configModel = $jfbcLibrary->configModel;
$user = JFactory::getUser();
if ($user->guest) {
# Guest: Check if they have a Joomla user and log that user in. If not, create them one
$jUserId = $userMapModel->getJoomlaUserId($fbUserId);
if (!$fbUserId) {
# Facebook isn't returning information about this user. Redirect them.
$app->enqueueMessage('We were unable to retrieve your Facebook account information. Please try again');
$app->redirect('index.php');
}
# Check if automatic email mapping is allowed, and see if that email is registered
# AND the Facebook user doesn't already have a Joomla account
if ($configModel->getSetting('facebook_auto_map_by_email') && !$jUserId) {
$fbProfileFields = $jfbcLibrary->getUserProfile($fbUserId, array('email'));
if ($fbProfileFields != null && $fbProfileFields['email']) {
$fbEmail = $fbProfileFields['email'];
$jUserEmailId = $userMapModel->getJoomlaUserIdFromEmail($fbEmail);
if ($jUserEmailId && $jUserEmailId != 0) {
// Found a user with the same email address
// do final check to make sure there isn't a FB account already mapped to it
$jUserId = $userMapModel->getFacebookUserId($jUserEmailId);
if (!$jUserId) {
if ($userMapModel->mapUser($fbUserId, $jUserEmailId)) {
$app->enqueueMessage(JText::_('MAP USER SUCCESS'));
} else {
$app->enqueueMessage(JText::_('MAP USER FAIL'));
}
$app->enqueueMessage(JText::_('MAP USER SUCCESS'));
$jUserId = $jUserEmailId;
// Update the temp jId so that we login below
}
}
}
}
if ($configModel->getSetting('create_new_users') && $jUserId == null) {
# User not in system, create new users setting enabled. Redirect to the login/register form
$app->redirect(JRoute::_('index.php?option=com_jfbconnect&view=loginregister', false));
}
#set the initial registration variable so that the user plugin knows to map user and trigger onAfterRegistration
if ($jUserId == null) {
$jfbcLibrary->setInitialRegistration();
}
require_once JPATH_COMPONENT . DS . 'controllers' . DS . 'loginregister.php';
$loginController = new JFBConnectControllerLoginRegister();
$loginController->login();
// Perform the login function
} else {
#echo "Updating mapping only";
if ($userMapModel->mapUser($fbUserId)) {
$app->enqueueMessage(JText::_('MAP USER SUCCESS'));
} else {
$app->enqueueMessage(JText::_('MAP USER FAIL'));
}
}
$return = base64_decode(JRequest::getVar('return'));
$app->redirect($return);
}
