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khosb/modules/oauth/classes/Auth/Facebook_Connect.php
2013-05-27 22:10:41 +10:00

122 lines
2.7 KiB
PHP

<?php defined('SYSPATH') or die('No direct access allowed.');
/**
* This class provides Authentication using Facebook
*
* @package OAuth
* @category Classes
* @author Deon George
* @copyright (c) 2009-2013 Open Source Billing
* @license http://dev.osbill.net/license.html
*/
class Auth_Facebook extends Auth_ORM_External {
// Our Facebook config data
private $config;
private $data;
private $me;
// Facebook UID
private $uid;
public function __construct(Model_Oauth $oo) {
// If our user refused, then no point continuing
if ($problem = Arr::get($_REQUEST,'error'))
switch ($problem) {
case 'access_denied':
HTTP::redirect('login');
default:
throw HTTP_Exception::factory(501,'Unknown OAuth Problem :problem',array(':problem'=>$problem));
}
parent::__construct($oo);
include Kohana::find_file('vendor', 'facebook');
// Load configuration "config/facebook"
$this->config = Kohana::$config->load('facebook');
// Create new Facebook object
$this->ao = new Facebook(array(
'appId' => $oo->app_id,
'secret' => $oo->secret,
'cookie' => $this->config->cookie,
'session_type' => $this->config->session_type,
));
try {
$this->me = $this->ao->api('/' . $this->ao->getUser(), 'GET');
} catch (FacebookApiException $e) {
// Do nothing.
}
}
/**
* Returns user data, default in case of failure.
*
* @param $key
* @param null $default
* @return mixed
* @throws FacebookApiException
*/
public function get($key,$default=NULL) {
if (! $uid = $this->user_id()) {
$this->login_url();
throw new FacebookApiException('User is not logged in.');
}
if (empty($this->data))
$this->data = $this->ao->api(array(
'method' => 'fql.query',
'query' => sprintf('SELECT %s FROM user WHERE uid = %s',$this->config_fields,$uid),
));
return (! empty($this->data[0][$key])) ? $this->data[0][$key] : $default;
}
/**
* Is user currently logged into facebook?
*/
public function logged_in($role=NULL,$debug=NULL) {
return $this->ao->getUser() ? TRUE : FALSE;
}
/**
* Creates a login url, based on scope, redirect_uri and display.
*
* @return string
*/
public function login_url() {
return urldecode($this->ao->getLoginUrl(array(
'scope' => $this->config->scope,
'redirect_uri' => $this->config->redirect_uri,
'display' => $this->config->display,
)));
}
/**
* Creates a logout url based on next.
*
* @return string
*/
public function logout_url() {
return urldecode($this->ao->getLogoutUrl(array('next'=>$this->config->next)));
}
/**
* Return user id if success, otherwise FALSE.
*/
public function user_id() {
if ($this->logged_in()) {
$this->uid = $this->ao->getUser();
return $this->uid;
} else {
return FALSE;
}
}
}
?>