forked from GNUsocial/gnu-social
600 lines
17 KiB
PHP
600 lines
17 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Plugin to add a StatusNet Facebook application
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Plugin
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @copyright 2009-2010 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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exit(1);
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}
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define("FACEBOOK_CONNECT_SERVICE", 3);
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require_once INSTALLDIR . '/plugins/Facebook/facebookutil.php';
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/**
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* Facebook plugin to add a StatusNet Facebook canvas application
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* and allow registration and authentication via Facebook Connect
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*
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* @category Plugin
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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class FacebookPlugin extends Plugin
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{
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const VERSION = STATUSNET_VERSION;
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/**
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* Initializer for the plugin.
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*/
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function initialize()
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{
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// Allow the key and secret to be passed in
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// Control panel will override
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if (isset($this->apikey)) {
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$key = common_config('facebook', 'apikey');
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if (empty($key)) {
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Config::save('facebook', 'apikey', $this->apikey);
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}
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}
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if (isset($this->secret)) {
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$secret = common_config('facebook', 'secret');
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if (empty($secret)) {
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Config::save(
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'facebook',
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'secret',
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$this->secret
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);
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}
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}
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}
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/**
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* Add Facebook app actions to the router table
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*
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* Hook for RouterInitialized event.
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*
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* @param Net_URL_Mapper &$m path-to-action mapper
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*
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* @return boolean hook return
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*/
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function onStartInitializeRouter($m)
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{
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// Facebook App stuff
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$m->connect('facebook/app', array('action' => 'facebookhome'));
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$m->connect('facebook/app/index.php', array('action' => 'facebookhome'));
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$m->connect('facebook/app/settings.php',
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array('action' => 'facebooksettings'));
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$m->connect('facebook/app/invite.php', array('action' => 'facebookinvite'));
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$m->connect('facebook/app/remove', array('action' => 'facebookremove'));
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$m->connect('admin/facebook', array('action' => 'facebookadminpanel'));
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// Facebook Connect stuff
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$m->connect('main/facebookconnect', array('action' => 'FBConnectAuth'));
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$m->connect('main/facebooklogin', array('action' => 'FBConnectLogin'));
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$m->connect('settings/facebook', array('action' => 'FBConnectSettings'));
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$m->connect('xd_receiver.html', array('action' => 'FBC_XDReceiver'));
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return true;
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}
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/**
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* Automatically load the actions and libraries used by the Facebook app
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*
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* @param Class $cls the class
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*
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* @return boolean hook return
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*
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*/
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function onAutoload($cls)
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{
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switch ($cls) {
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case 'FacebookAction':
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case 'FacebookhomeAction':
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case 'FacebookinviteAction':
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case 'FacebookremoveAction':
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case 'FacebooksettingsAction':
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case 'FacebookadminpanelAction':
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include_once INSTALLDIR . '/plugins/Facebook/' .
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strtolower(mb_substr($cls, 0, -6)) . '.php';
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return false;
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case 'FBConnectAuthAction':
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case 'FBConnectLoginAction':
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case 'FBConnectSettingsAction':
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case 'FBC_XDReceiverAction':
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include_once INSTALLDIR . '/plugins/Facebook/' .
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mb_substr($cls, 0, -6) . '.php';
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return false;
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case 'FBCLoginGroupNav':
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include_once INSTALLDIR . '/plugins/Facebook/FBCLoginGroupNav.php';
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return false;
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case 'FBCSettingsNav':
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include_once INSTALLDIR . '/plugins/Facebook/FBCSettingsNav.php';
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return false;
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case 'FacebookQueueHandler':
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include_once INSTALLDIR . '/plugins/Facebook/facebookqueuehandler.php';
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return false;
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default:
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return true;
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}
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}
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/**
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* Add a Facebook tab to the admin panels
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*
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* @param Widget $nav Admin panel nav
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*
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* @return boolean hook value
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*/
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function onEndAdminPanelNav($nav)
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{
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if (AdminPanelAction::canAdmin('facebook')) {
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$action_name = $nav->action->trimmed('action');
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$nav->out->menuItem(
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common_local_url('facebookadminpanel'),
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_m('Facebook'),
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_m('Facebook integration configuration'),
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$action_name == 'facebookadminpanel',
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'nav_facebook_admin_panel'
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);
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}
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return true;
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}
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/**
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* Override normal HTML output to force the content type to
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* text/html and add in xmlns:fb
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*
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* @param Action $action the current action
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*
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* @return void
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*/
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function onStartShowHTML($action)
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{
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if ($this->reqFbScripts($action)) {
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// XXX: Horrible hack to make Safari, FF2, and Chrome work with
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// Facebook Connect. These browser cannot use Facebook's
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// DOM parsing routines unless the mime type of the page is
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// text/html even though Facebook Connect uses XHTML. This is
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// A bug in Facebook Connect, and this is a temporary solution
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// until they fix their JavaScript libs.
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header('Content-Type: text/html');
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$action->extraHeaders();
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$action->startXML('html');
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$language = $action->getLanguage();
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$action->elementStart('html',
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array('xmlns' => 'http://www.w3.org/1999/xhtml',
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'xmlns:fb' => 'http://www.facebook.com/2008/fbml',
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'xml:lang' => $language,
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'lang' => $language));
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return false;
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} else {
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return true;
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}
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}
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/**
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* Add in the Facebook Connect JavaScript stuff
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*
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* Note: this script needs to appear in the <body>
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*
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* @param Action $action the current action
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*
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* @return void
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*
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*/
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function onEndShowScripts($action)
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{
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if ($this->reqFbScripts($action)) {
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$apikey = common_config('facebook', 'apikey');
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$plugin_path = 'plugins/Facebook';
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$login_url = common_local_url('FBConnectAuth');
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$logout_url = common_local_url('logout');
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// XXX: Facebook says we don't need this FB_RequireFeatures(),
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// but we actually do, for IE and Safari. Gar.
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$js .= ' $(document).ready(function () {';
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$js .= ' FB_RequireFeatures(';
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$js .= ' ["XFBML"], function() {';
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$js .= ' FB.init("%1$s", "../xd_receiver.html");';
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$js .= ' }';
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$js .= ' );';
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$js .= ' });';
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$js .= ' function goto_login() {';
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$js .= ' window.location = "%2$s";';
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$js .= ' }';
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// The below function alters the logout link so that it logs the user out
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// of Facebook Connect as well as the site. However, for some pages
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// (FB Connect Settings) we need to output the FB Connect scripts (to
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// show an existing FB connection even if the user isn't authenticated
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// with Facebook connect) but NOT alter the logout link. And the only
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// way to reliably do that is with the FB Connect .js libs. Crazy.
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$js .= ' FB.ensureInit(function() {';
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$js .= ' FB.Connect.ifUserConnected(';
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$js .= ' function() { ';
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$js .= ' $(\'#nav_logout a\').attr(\'href\', \'#\');';
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$js .= ' $(\'#nav_logout a\').click(function() {';
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$js .= ' FB.Connect.logoutAndRedirect(\'%3$s\');';
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$js .= ' return false;';
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$js .= ' })';
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$js .= ' },';
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$js .= ' function() {';
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$js .= ' return false;';
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$js .= ' }';
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$js .= ' );';
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$js .= ' });';
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$js = sprintf($js, $apikey, $login_url, $logout_url);
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// Compress the bugger down a bit
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$js = str_replace(' ', '', $js);
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$action->inlineScript($js);
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}
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}
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/**
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* Add in an additional Facebook Connect script that's supposed to
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* appear as close as possible to </body>
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*
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* @param Action $action the current action
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*
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* @return void
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*
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*/
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function onEndShowFooter($action)
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{
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if ($this->reqFbScripts($action)) {
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$action->script('http://static.ak.connect.facebook.com' .
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'/js/api_lib/v0.4/FeatureLoader.js.php');
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}
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}
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/**
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* Output Facebook Connect specific CSS link
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*
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* @param Action $action the current action
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*
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* @return void
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*
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*/
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function onEndShowStatusNetStyles($action)
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{
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if ($this->reqFbScripts($action)) {
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$action->cssLink('plugins/Facebook/FBConnect.css');
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}
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}
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/**
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* Does the Action we're plugged into require the FB Scripts? We only
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* want to output FB namespace, scripts, CSS, etc. on the pages that
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* really need them.
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*
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* @param Action $action the current action
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*
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* @return boolean true
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*/
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function reqFbScripts($action)
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{
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// If you're logged in w/FB Connect, you always need the FB stuff
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$fbuid = $this->loggedIn();
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if (!empty($fbuid)) {
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return true;
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}
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// List of actions that require FB stuff
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$needy = array('FBConnectLoginAction',
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'FBConnectauthAction',
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'FBConnectSettingsAction');
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if (in_array(get_class($action), $needy)) {
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return true;
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}
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return false;
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}
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/**
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* Is the user currently logged in with FB Connect?
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*
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* @return mixed $fbuid the Facebook ID of the logged in user, or null
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*/
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function loggedIn()
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{
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$user = common_current_user();
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if (!empty($user)) {
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$flink = Foreign_link::getByUserId($user->id,
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FACEBOOK_CONNECT_SERVICE);
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$fbuid = 0;
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if (!empty($flink)) {
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try {
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$facebook = getFacebook();
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$fbuid = $facebook->get_loggedin_user();
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} catch (Exception $e) {
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common_log(LOG_WARNING, 'Facebook Connect Plugin - ' .
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'Problem getting Facebook user: ' .
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$e->getMessage());
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}
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if ($fbuid > 0) {
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return $fbuid;
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}
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}
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}
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return null;
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}
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/**
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* Add in a Facebook Connect avatar to the primary nav menu
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*
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* @param Action $action the current action
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*
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* @return void
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*
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*/
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function onStartPrimaryNav($action)
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{
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$user = common_current_user();
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$connect = 'FBConnectSettings';
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if (common_config('xmpp', 'enabled')) {
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$connect = 'imsettings';
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} else if (common_config('sms', 'enabled')) {
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$connect = 'smssettings';
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}
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if (!empty($user)) {
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$fbuid = $this->loggedIn();
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if (!empty($fbuid)) {
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/* Default FB silhouette pic for FB users who haven't
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uploaded a profile pic yet. */
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$silhouetteUrl =
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'http://static.ak.fbcdn.net/pics/q_silhouette.gif';
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$url = $this->getProfilePicURL($fbuid);
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$action->elementStart('li', array('id' => 'nav_fb'));
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$action->element('img', array('id' => 'fbc_profile-pic',
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'src' => (!empty($url)) ? $url : $silhouetteUrl,
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'alt' => 'Facebook Connect User',
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'width' => '16'), '');
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$iconurl = common_path('plugins/Facebook/fbfavicon.ico');
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$action->element('img', array('id' => 'fb_favicon',
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'src' => $iconurl));
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$action->elementEnd('li');
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}
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}
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return true;
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}
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/*
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* Add a login tab for Facebook Connect
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*
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* @param Action &action the current action
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*
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* @return void
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*/
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function onEndLoginGroupNav(&$action)
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{
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$action_name = $action->trimmed('action');
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$action->menuItem(common_local_url('FBConnectLogin'),
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_m('Facebook'),
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_m('Login or register using Facebook'),
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'FBConnectLogin' === $action_name);
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return true;
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}
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/*
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* Add a tab for managing Facebook Connect settings
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*
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* @param Action &action the current action
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*
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* @return void
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*/
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function onEndConnectSettingsNav(&$action)
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{
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$action_name = $action->trimmed('action');
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$action->menuItem(common_local_url('FBConnectSettings'),
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_m('Facebook'),
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_m('Facebook Connect Settings'),
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$action_name === 'FBConnectSettings');
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return true;
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}
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/**
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* Have the logout process do some Facebook Connect cookie cleanup
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*
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* @param Action $action the current action
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*
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* @return void
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*/
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function onStartLogout($action)
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{
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$action->logout();
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$fbuid = $this->loggedIn();
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if (!empty($fbuid)) {
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try {
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$facebook = getFacebook();
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$facebook->expire_session();
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} catch (Exception $e) {
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common_log(LOG_WARNING, 'Facebook Connect Plugin - ' .
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'Could\'t logout of Facebook: ' .
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$e->getMessage());
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}
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}
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return true;
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}
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/**
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* Get the URL of the user's Facebook avatar
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*
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* @param int $fbuid the Facebook user ID
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*
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* @return string $url the url for the user's Facebook avatar
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*/
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function getProfilePicURL($fbuid)
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{
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$facebook = getFacebook();
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$url = null;
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try {
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$fqry = 'SELECT pic_square FROM user WHERE uid = %s';
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$result = $facebook->api_client->fql_query(sprintf($fqry, $fbuid));
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if (!empty($result)) {
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$url = $result[0]['pic_square'];
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}
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} catch (Exception $e) {
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common_log(LOG_WARNING, 'Facebook Connect Plugin - ' .
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"Facebook client failure requesting profile pic!");
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}
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return $url;
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}
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/**
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* Add a Facebook queue item for each notice
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*
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* @param Notice $notice the notice
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* @param array &$transports the list of transports (queues)
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*
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* @return boolean hook return
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*/
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function onStartEnqueueNotice($notice, &$transports)
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{
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array_push($transports, 'facebook');
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return true;
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}
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/**
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* Register Facebook notice queue handler
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*
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* @param QueueManager $manager
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*
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* @return boolean hook return
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*/
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function onEndInitializeQueueManager($manager)
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{
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$manager->connect('facebook', 'FacebookQueueHandler');
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return true;
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}
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function onPluginVersion(&$versions)
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{
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$versions[] = array(
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'name' => 'Facebook',
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'version' => self::VERSION,
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'author' => 'Zach Copley',
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'homepage' => 'http://status.net/wiki/Plugin:Facebook',
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'rawdescription' => _m(
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'The Facebook plugin allows you to integrate ' .
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'your StatusNet instance with ' .
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'<a href="http://facebook.com/">Facebook</a> ' .
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'and Facebook Connect.'
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)
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);
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return true;
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}
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}
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