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<?php
/**
* Laconica, 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 Laconica
* @author Zach Copley <zach@controlyourself.ca>
* @copyright 2009 Control Yourself, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
if (!defined('LACONICA')) {
exit(1);
}
require_once INSTALLDIR . '/plugins/FBConnect/FBConnectLogin.php';
require_once INSTALLDIR . '/lib/facebookutil.php';
/**
* Plugin to enable Facebook Connect
*
* @category Plugin
* @package Laconica
* @author Zach Copley <zach@controlyourself.ca>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
class FBConnectPlugin extends Plugin
{
function __construct()
{
parent::__construct();
}
// Hook in new actions
function onRouterInitialized(&$m) {
$m->connect('main/facebookconnect', array('action' => 'fbconnectlogin'));
}
// Add in xmlns:fb
function onStartShowHTML($action)
{
// XXX: This is probably a bad place to do general processing
// so maybe I need to make some new events? Maybe in
// Action::prepare?
$name = get_class($action);
common_debug("action: $name");
// Avoid a redirect loop
if ($name != 'FBConnectloginAction') {
$this->checkFacebookUser($action);
}
$httpaccept = isset($_SERVER['HTTP_ACCEPT']) ?
$_SERVER['HTTP_ACCEPT'] : null;
// XXX: allow content negotiation for RDF, RSS, or XRDS
$cp = common_accept_to_prefs($httpaccept);
$sp = common_accept_to_prefs(PAGE_TYPE_PREFS);
$type = common_negotiate_type($cp, $sp);
if (!$type) {
throw new ClientException(_('This page is not available in a '.
'media type you accept'), 406);
}
header('Content-Type: '.$type);
$action->extraHeaders();
$action->startXML('html',
'-//W3C//DTD XHTML 1.0 Strict//EN',
'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
$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' => $language));
return false;
}
function onEndShowLaconicaScripts($action)
{
$action->element('script',
array('type' => 'text/javascript',
'src' => 'http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php'),
' ');
$apikey = common_config('facebook', 'apikey');
$plugin_path = common_path('plugins/FBConnect');
$login_url = common_get_returnto() || common_local_url('public');
$html = sprintf('<script type="text/javascript">FB.init("%s", "%s/xd_receiver.htm");
function refresh_page() {
window.location = "%s";
}
</script>', $apikey, $plugin_path, $login_url);
$action->raw($html);
}
function onStartPrimaryNav($action)
{
$user = common_current_user();
if ($user) {
$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');
}
$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
$logout_url = common_local_url('logout');
$title = _('Logout from the site');
$text = _('Logout');
$html = sprintf('<li id="nav_logout"><a href="%s" title="%s" ' .
'onclick="FB.Connect.logoutAndRedirect(\'%s\')">%s</a></li>',
$logout_url, $title, $logout_url, $text);
$action->raw($html);
}
else {
if (!common_config('site', 'closed')) {
$action->menuItem(common_local_url('register'),
_('Register'), _('Create an account'), false, 'nav_register');
}
$action->menuItem(common_local_url('openidlogin'),
_('OpenID'), _('Login with OpenID'), false, 'nav_openid');
$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');
$action->menuItem(common_local_url('peoplesearch'),
_('Search'), _('Search for people or text'), false, 'nav_search');
// Tack on "Connect with Facebook" button
// XXX: Maybe this looks bad and should not go here. Where should it go?
if (!$user) {
$action->elementStart('li');
$action->element('fb:login-button', array('onlogin' => 'refresh_page()',
'length' => 'long'));
$action->elementEnd('li');
}
return false;
}
function checkFacebookUser() {
try {
$facebook = getFacebook();
$fbuid = $facebook->get_loggedin_user();
$user = common_current_user();
// If you're a Facebook user and you're logged in do nothing
// If you're a Facebook user and you're not logged in
// redirect to Facebook connect login page because that means you have clicked
// the 'connect with Facebook' button and have cookies
if ($fbuid > 0) {
if ($facebook->api_client->users_isAppUser($fbuid) ||
$facebook->api_client->added) {
// user should be connected...
common_debug("Facebook user found: $fbuid");
if ($user) {
common_debug("Facebook user is logged in.");
return;
} else {
common_debug("Facebook user is NOT logged in.");
common_redirect(common_local_url('fbconnectlogin'), 303);
}
} else {
common_debug("No Facebook connect user found.");
}
}
} catch (Exception $e) {
common_debug('Expired FB session.');
}
}
function onStartLogout($action)
{
common_debug("onEndLogout()");
common_set_user(null);
common_real_login(false); // not logged in
common_forgetme(); // don't log back in!
try {
$facebook = getFacebook();
$fbuid = $facebook->get_loggedin_user();
// XXX: ARGGGH this doesn't work right!
if ($fbuid) {
$facebook->expire_session();
$facebook->logout(common_local_url('public'));
}
} catch (Exception $e) {
common_debug('Problem expiring FB session');
}
common_debug("logged out.");
return false;
}
}
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