Facebook.php
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<?php
/**
* Note: If there is an inconsistent error
* it's due to how I changed the FB load
* process, may need to change how JS is loaded
* Proabably move FB.init and FB.Event.subscribe
* to my init method
*
* This needs to go in the <html tag
* xmlns:fb="http://www.facebook.com/2008/fbml"
*
* http://wpdev.tenzinghost.com
* API Key: 83f54e078b9aa0e303bba959dc0a566f
* App Secret: e542aca35ab698121fa5917211013a41
* App ID: 105917066126941
*
* http://wp.cb
* API Key: 3bcccfd8c28c52197141266d9e417649
* App Secret: 9bfcd828bc6ccef12336dea57df93ecb
* App ID: 138943536118944
*
* Graph API Reference:
* http://developers.facebook.com/docs/reference/api/user
*/
namespace Tz\WordPress\Tools\Auth\Facebook;
use Tz\WordPress\Tools;
use Tz\WordPress\Tools\Auth;
use FB;
use Exception;
use InvalidArgumentException;
const OPTION_NAME = 'tz_auth_fb';
//setcookie('wpfb_logout', '', time() - 3600, '/');
call_user_func(function() {
Vars::$options = new Tools\WP_Option(OPTION_NAME, Array('button_title' => 'Login', 'ext_perms' => Array('email' => 1)));
Tools\add_actions(__NAMESPACE__ . '\Actions');
Tools\add_shortcodes(__NAMESPACE__ . '\ShortCodes');
if (is_admin()) {
require_once(__DIR__ . DIRECTORY_SEPARATOR . 'Settings.php');
}
});
/**
* Generates markup for a Facebook Login button
* @param {Boolean} $echo TRUE to echo the button, false to return a string
* @returns NULL|String
*/
function drawLoginButton($echo = true) {
$title = Vars::$options['button_title'] ?: 'Login';
$btn = '<a id="TzFB" class="fb_button fb_button_medium"><span class="fb_button_text">' . $title . '</span></a>';
// $btn = '<fb:login-button></fb:login-button>';
if (!$echo) {
return $btn;
}
echo $btn;
}
// This might need some work...what happens if the object fails?
function getSDK() {
static $instance = false;
if (false === $instance) {
require_once(__DIR__ . DIRECTORY_SEPARATOR . 'facebook-sdk.php');
$instance = new FB\Facebook(Array(
'appId' => Vars::$options['application_id']
, 'secret' => Vars::$options['application_secret']
, 'cookie' => true
, 'domain' => Vars::$options['domain_name']
));
}
return $instance;
}
function load() {
Vars::$loaded = true;
?>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({appId: '<?php echo Vars::$options['application_id']; ?>', status: true, cookie: true, xfbml: true});
FB.Event.subscribe('auth.login', function(response) { window.location.reload(); });
<?php if (isset($_COOKIE['wpfb_logout'])): ?>
FB.getLoginStatus(function(response) {
if (response.session) {
FB.logout(function() {
var date = new Date();
date.setTime(date.getTime() - 1);
document.cookie = 'wpfb_logout=;expires=' + date.toGMTString() + ';path=/';
// window.location.reload();
});
}
});
<?php endif; ?>
};
(function() {
var e = document.createElement('script');
e.async = true;
e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
document.getElementById('fb-root').appendChild(e);
}());
</script>
<?php
}
class Actions {
public static function set_current_user() {
$sdk = getSDK();
if (null === ($sess = $sdk->getSession())) {
return;
}
if (isset($_COOKIE['wpfb_logout'])) {
$sdk->setSession();
return;
}
// if user is not logged in do the following
// if user is logged in merge account? do checks?
try {
$info = $sdk->api('/me');
$username = 'fbc' . $sess['uid'];
} catch (FB\FacebookApiException $e) {
// Load up an error thingie
return;
}
if (is_user_logged_in()) {
// was user already logged in from Facebook/other or were they logged in and then linked with facebook
// merge account
// return
}
require_once(ABSPATH . WPINC . DIRECTORY_SEPARATOR . 'registration.php');
if (username_exists($username)) {
$user = Auth\signin($username);
} else {
if (false !== get_user_by('email', $info['email'])) {
// Not sure if I can throw exception, this is outside the theme stuff...
throw new Exception('email conflict');
}
try {
$key = Auth\register($username, $info['email'], _generate_password());
$id = Auth\activate($key);
$user = Auth\signin($username);
_update_user(Array(
'ID' => $user->ID
, 'user_nicename' => $info['name']
, 'first_name' => $info['first_name']
, 'last_name' => $info['last_name']
, 'nickname' => $info['name']
, 'display_name' => $info['name']
, 'user_url' => ($info['user_website'] ?: '')
));
update_user_meta($user->ID, 'fbuid', $info['id']);
} catch (Exception $e) {
// many types of exceptions
}
}
}
public static function wp_enqueue_scripts() {
_enqueue_script('tz-facebook', Tools\url('tz-facebook.js', __FILE__), Array('addEvent'));
_localize_script('tz-facebook', 'TzFBData', Array('ext_perms' => implode(',', array_keys(Vars::$options['ext_perms']))));
}
/**
* Destroy Facebook session data on site if the log out of WordPress
*/
public static function wp_logout() {
setcookie('wpfb_logout', 1, 0, '/', Vars::$options['domain_name']);
}
}
class ShortCodes {
public static function fb_login_button() {
$sdk = getSDK();
if ($sdk->getSession()) {
ob_start();
print_r($sdk->getSession());
print_r($_COOKIE);
print_r($sdk->api('/me'));
$data = '<pre>' . ob_get_contents() . '</pre>';
ob_end_clean();
return $data;
} else {
return drawLoginButton(false);
}
}
}
class Vars {
/**
* WordPress option for this module
* @type WP_Option
*/
public static $options;
public static $loaded = false;
}
?>