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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Plugin to enable Facebook Connect
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Plugin
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @copyright 2009 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
define("FACEBOOK_CONNECT_SERVICE", 3);
require_once INSTALLDIR . '/lib/facebookutil.php';
require_once INSTALLDIR . '/plugins/FBConnect/FBConnectAuth.php';
require_once INSTALLDIR . '/plugins/FBConnect/FBConnectLogin.php';
require_once INSTALLDIR . '/plugins/FBConnect/FBConnectSettings.php';
require_once INSTALLDIR . '/plugins/FBConnect/FBCLoginGroupNav.php';
require_once INSTALLDIR . '/plugins/FBConnect/FBCSettingsNav.php';
require_once INSTALLDIR . '/plugins/FBConnect/FBC_XDReceiver.php';
/**
* Plugin to enable Facebook Connect
*
* @category Plugin
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class FBConnectPlugin extends Plugin
{
function __construct()
{
parent::__construct();
}
// Hook in new actions
function onRouterInitialized(&$m) {
$m->connect('main/facebookconnect', array('action' => 'FBConnectAuth'));
$m->connect('main/facebooklogin', array('action' => 'FBConnectLogin'));
$m->connect('settings/facebook', array('action' => 'FBConnectSettings'));
$m->connect('xd_receiver.html', array('action' => 'FBC_XDReceiver'));
}
// Add in xmlns:fb
function onStartShowHTML($action)
{
if ($this->reqFbScripts($action)) {
// XXX: Horrible hack to make Safari, FF2, and Chrome work with
// Facebook Connect. These browser cannot use Facebook's
// DOM parsing routines unless the mime type of the page is
// text/html even though Facebook Connect uses XHTML. This is
// A bug in Facebook Connect, and this is a temporary solution
// until they fix their JavaScript libs.
header('Content-Type: text/html');
$action->extraHeaders();
$action->startXML('html');
$language = $action->getLanguage();
$action->elementStart('html',
array('xmlns' => 'http://www.w3.org/1999/xhtml',
'xmlns:fb' => 'http://www.facebook.com/2008/fbml',
'xml:lang' => $language,
'lang' => $language));
return false;
} else {
return true;
}
}
// Note: this script needs to appear in the <body>
function onStartShowHeader($action)
{
if ($this->reqFbScripts($action)) {
$apikey = common_config('facebook', 'apikey');
$plugin_path = common_path('plugins/FBConnect');
$login_url = common_local_url('FBConnectAuth');
$logout_url = common_local_url('logout');
// XXX: Facebook says we don't need this FB_RequireFeatures(),
// but we actually do, for IE and Safari. Gar.
$html = sprintf('<script type="text/javascript">
$(document).ready(function () {
FB_RequireFeatures(
["XFBML"],
function() {
FB.init("%s", "../xd_receiver.html");
}
); });
function goto_login() {
window.location = "%s";
}
function goto_logout() {
window.location = "%s";
}
</script>', $apikey,
$login_url, $logout_url);
$action->raw($html);
}
}
// Note: this script needs to appear as close as possible to </body>
function onEndShowFooter($action)
{
if ($this->reqFbScripts($action)) {
$action->script('http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php');
}
}
function onEndShowStatusNetStyles($action)
{
if ($this->reqFbScripts($action)) {
$action->cssLink('plugins/FBConnect/FBConnectPlugin.css');
}
}
/**
* Does the Action we're plugged into require the FB Scripts? We only
* want to output FB namespace, scripts, CSS, etc. on the pages that
* really need them.
*
* @param Action the action in question
*
* @return boolean true
*/
function reqFbScripts($action) {
// If you're logged in w/FB Connect, you always need the FB stuff
$fbuid = $this->loggedIn();
if (!empty($fbuid)) {
return true;
}
// List of actions that require FB stuff
$needy = array('FBConnectLoginAction',
'FBConnectauthAction',
'FBConnectSettingsAction');
if (in_array(get_class($action), $needy)) {
return true;
}
return false;
}
/**
* Is the user currently logged in with FB Connect?
*
* @return mixed $fbuid the Facebook ID of the logged in user, or null
*/
function loggedIn()
{
$user = common_current_user();
if (!empty($user)) {
$flink = Foreign_link::getByUserId($user->id,
FACEBOOK_CONNECT_SERVICE);
$fbuid = 0;
if (!empty($flink)) {
try {
$facebook = getFacebook();
$fbuid = $facebook->get_loggedin_user();
} catch (Exception $e) {
common_log(LOG_WARNING, 'Facebook Connect Plugin - ' .
'Problem getting Facebook user: ' .
$e->getMessage());
}
if ($fbuid > 0) {
return $fbuid;
}
}
}
return null;
}
function onStartPrimaryNav($action)
{
$user = common_current_user();
if (!empty($user)) {
$fbuid = $this->loggedIn();
if (!empty($fbuid)) {
/* Default FB silhouette pic for FB users who haven't
uploaded a profile pic yet. */
$silhouetteUrl =
'http://static.ak.fbcdn.net/pics/q_silhouette.gif';
$url = $this->getProfilePicURL($fbuid);
$action->elementStart('li', array('id' => 'nav_fb'));
$action->element('img', array('id' => 'fbc_profile-pic',
'src' => (!empty($url)) ? $url : $silhouetteUrl,
'alt' => 'Facebook Connect User',
'width' => '16'), '');
$iconurl = common_path('plugins/FBConnect/fbfavicon.ico');
$action->element('img', array('id' => 'fb_favicon',
'src' => $iconurl));
$action->elementEnd('li');
}
$action->menuItem(common_local_url('all', array('nickname' => $user->nickname)),
_('Home'), _('Personal profile and friends timeline'), false, 'nav_home');
$action->menuItem(common_local_url('profilesettings'),
_('Account'), _('Change your email, avatar, password, profile'), false, 'nav_account');
if (common_config('xmpp', 'enabled')) {
$action->menuItem(common_local_url('imsettings'),
_('Connect'), _('Connect to IM, SMS, Twitter'), false, 'nav_connect');
} else {
$action->menuItem(common_local_url('smssettings'),
_('Connect'), _('Connect to SMS, Twitter'), false, 'nav_connect');
}
if (common_config('invite', 'enabled')) {
$action->menuItem(common_local_url('invite'),
_('Invite'),
sprintf(_('Invite friends and colleagues to join you on %s'),
common_config('site', 'name')),
false, 'nav_invitecontact');
}
// Need to override the Logout link to make it do FB stuff
if (!empty($fbuid)) {
$logout_url = common_local_url('logout');
$title = _('Logout from the site');
$text = _('Logout');
$html = sprintf('<li id="nav_logout"><a href="#" title="%s" ' .
'onclick="FB.Connect.logoutAndRedirect(\'%s\');">%s</a></li>',
$title, $logout_url, $text);
$action->raw($html);
} else {
$action->menuItem(common_local_url('logout'),
_('Logout'), _('Logout from the site'), false, 'nav_logout');
}
}
else {
if (!common_config('site', 'closed')) {
$action->menuItem(common_local_url('register'),
_('Register'), _('Create an account'), false, 'nav_register');
}
$action->menuItem(common_local_url('login'),
_('Login'), _('Login to the site'), false, 'nav_login');
}
$action->menuItem(common_local_url('doc', array('title' => 'help')),
_('Help'), _('Help me!'), false, 'nav_help');
$action->menuItem(common_local_url('peoplesearch'),
_('Search'), _('Search for people or text'), false, 'nav_search');
return false;
}
function onStartShowLocalNavBlock($action)
{
$action_name = get_class($action);
$login_actions = array('LoginAction', 'RegisterAction',
'OpenidloginAction', 'FBConnectLoginAction');
if (in_array($action_name, $login_actions)) {
$nav = new FBCLoginGroupNav($action);
$nav->show();
return false;
}
$connect_actions = array('SmssettingsAction', 'ImsettingsAction',
'TwittersettingsAction', 'FBConnectSettingsAction');
if (in_array($action_name, $connect_actions)) {
$nav = new FBCSettingsNav($action);
$nav->show();
return false;
}
return true;
}
function onStartLogout($action)
{
$action->logout();
$fbuid = $this->loggedIn();
if (!empty($fbuid)) {
try {
$facebook = getFacebook();
$facebook->expire_session();
} catch (Exception $e) {
common_log(LOG_WARNING, 'Facebook Connect Plugin - ' .
'Could\'t logout of Facebook: ' .
$e->getMessage());
}
}
return true;
}
function getProfilePicURL($fbuid)
{
$facebook = getFacebook();
$url = null;
try {
$fqry = 'SELECT pic_square FROM user WHERE uid = %s';
$result = $facebook->api_client->fql_query(sprintf($fqry, $fbuid));
if (!empty($result)) {
$url = $result[0]['pic_square'];
}
} catch (Exception $e) {
common_log(LOG_WARNING, 'Facebook Connect Plugin - ' .
"Facebook client failure requesting profile pic!");
}
return $url;
}
}
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