Enabled Fastbook/OAuth login

modules/oauth/classes/Oauth/Plugin/Facebook.php

@@ -0,0 +1,51 @@
+<?php defined('SYSPATH') or die('No direct access allowed.');
+
+/**
+ * This class provides Facebook Authentication
+ *
+ * @package    OAuth
+ * @category   Plugins
+ * @author     Deon George
+ * @copyright  (c) 2009-2013 Open Source Billing
+ * @license    http://dev.osbill.net/license.html
+ */
+
+class Oauth_Plugin_Facebook extends Oauth_Plugin {
+	public function html() {
+		// @todo Needs to work with https
+		Script::factory()
+			->type('src')
+			->data('http://connect.facebook.net/en_US/all.js');
+
+		Script::factory()
+			->type('stdin')
+			->data('
+$(document).ready(function(){
+	window.fbAsyncInit = function() {
+		// Initialize the Facebook JavaScript SDK
+		FB.init({
+			appId: '.$this->oo->app_id.',
+			xfbml: false,
+			status: true,
+			cookie: true,
+		});
+
+		// Check if the current user is logged in and has authorized the app
+		//FB.getLoginStatus(checkLoginStatus);
+	}
+
+	$(".fb-login").click(function() {
+		FB.login(checkLoginStatus, {scope:"email"});
+
+		// We stop the click, but pick up the href in the javascript
+		return false;
+	});
+});
+		');
+
+		Script::factory()
+			->type('file')
+			->data('media/js/facebook.js');
+	}
+}
+?>