387 lines
12 KiB
PHP
387 lines
12 KiB
PHP
<?php
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/**
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* Laconica, the distributed open-source microblogging tool
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*
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* Plugin to enable Facebook Connect
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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 Laconica
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* @author Zach Copley <zach@controlyourself.ca>
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* @copyright 2009 Control Yourself, 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://laconi.ca/
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*/
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if (!defined('LACONICA')) {
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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 . '/lib/facebookutil.php';
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require_once INSTALLDIR . '/plugins/FBConnect/FBConnectAuth.php';
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require_once INSTALLDIR . '/plugins/FBConnect/FBConnectLogin.php';
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require_once INSTALLDIR . '/plugins/FBConnect/FBConnectSettings.php';
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require_once INSTALLDIR . '/plugins/FBConnect/FBCLoginGroupNav.php';
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require_once INSTALLDIR . '/plugins/FBConnect/FBCSettingsNav.php';
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require_once INSTALLDIR . '/plugins/FBConnect/FBC_XDReceiver.php';
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/**
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* Plugin to enable Facebook Connect
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*
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* @category Plugin
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* @package Laconica
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* @author Zach Copley <zach@controlyourself.ca>
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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://laconi.ca/
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*/
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class FBConnectPlugin extends Plugin
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{
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function __construct()
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{
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parent::__construct();
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}
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// Hook in new actions
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function onRouterInitialized(&$m) {
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$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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$m->connect('xd_receiver.html', array('action' => 'FBC_XDReceiver'));
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}
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// Add in xmlns:fb
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function onStartShowHTML($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' => $language));
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return false;
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} else {
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return true;
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}
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}
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// Note: this script needs to appear in the <body>
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function onStartShowHeader($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 = common_path('plugins/FBConnect');
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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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$html = sprintf('<script type="text/javascript">
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window.onload = function () {
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FB_RequireFeatures(
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["XFBML"],
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function() {
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FB.init("%s", "../xd_receiver.html");
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}
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); }
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function goto_login() {
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window.location = "%s";
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}
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function goto_logout() {
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window.location = "%s";
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}
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</script>', $apikey,
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$login_url, $logout_url);
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$action->raw($html);
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}
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}
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// Note: this script needs to appear as close as possible to </body>
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function onEndShowFooter($action)
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{
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if ($this->reqFbScripts($action)) {
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$action->script('http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php');
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}
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}
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function onEndShowLaconicaStyles($action)
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{
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if ($this->reqFbScripts($action)) {
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$action->cssLink('plugins/FBConnect/FBConnectPlugin.css');
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}
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}
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/**
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* Does the Action we're plugged into require the FB Scripts? We only
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* want to output FB namespace, scripts, CSS, etc. on the pages that
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* really need them.
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*
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* @param Action the action in question
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*
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* @return boolean true
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*/
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function reqFbScripts($action) {
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// 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 $e) {
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common_log(LOG_WARNING,
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'Problem getting Facebook user: ' .
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$e->getMessage());
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}
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if ($fbuid > 0) {
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return $fbuid;
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}
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}
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}
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return null;
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}
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function onStartPrimaryNav($action)
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{
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$user = common_current_user();
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if (!empty($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/FBConnect/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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$action->menuItem(common_local_url('all', array('nickname' => $user->nickname)),
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_('Home'), _('Personal profile and friends timeline'), false, 'nav_home');
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$action->menuItem(common_local_url('profilesettings'),
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_('Account'), _('Change your email, avatar, password, profile'), false, 'nav_account');
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if (common_config('xmpp', 'enabled')) {
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$action->menuItem(common_local_url('imsettings'),
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_('Connect'), _('Connect to IM, SMS, Twitter'), false, 'nav_connect');
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} else {
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$action->menuItem(common_local_url('smssettings'),
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_('Connect'), _('Connect to SMS, Twitter'), false, 'nav_connect');
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}
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if (common_config('invite', 'enabled')) {
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$action->menuItem(common_local_url('invite'),
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_('Invite'),
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sprintf(_('Invite friends and colleagues to join you on %s'),
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common_config('site', 'name')),
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false, 'nav_invitecontact');
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}
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// Need to override the Logout link to make it do FB stuff
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if (!empty($fbuid)) {
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$logout_url = common_local_url('logout');
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$title = _('Logout from the site');
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$text = _('Logout');
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$html = sprintf('<li id="nav_logout"><a href="#" title="%s" ' .
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'onclick="FB.Connect.logoutAndRedirect(\'%s\');">%s</a></li>',
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$title, $logout_url, $text);
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$action->raw($html);
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} else {
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$action->menuItem(common_local_url('logout'),
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_('Logout'), _('Logout from the site'), false, 'nav_logout');
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}
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}
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else {
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if (!common_config('site', 'closed')) {
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$action->menuItem(common_local_url('register'),
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_('Register'), _('Create an account'), false, 'nav_register');
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}
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$action->menuItem(common_local_url('login'),
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_('Login'), _('Login to the site'), false, 'nav_login');
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}
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$action->menuItem(common_local_url('doc', array('title' => 'help')),
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_('Help'), _('Help me!'), false, 'nav_help');
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$action->menuItem(common_local_url('peoplesearch'),
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_('Search'), _('Search for people or text'), false, 'nav_search');
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return false;
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}
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function onStartShowLocalNavBlock($action)
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{
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$action_name = get_class($action);
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$login_actions = array('LoginAction', 'RegisterAction',
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'OpenidloginAction', 'FBConnectLoginAction');
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if (in_array($action_name, $login_actions)) {
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$nav = new FBCLoginGroupNav($action);
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$nav->show();
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return false;
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}
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$connect_actions = array('SmssettingsAction', 'ImsettingsAction',
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'TwittersettingsAction', 'FBConnectSettingsAction');
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if (in_array($action_name, $connect_actions)) {
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$nav = new FBCSettingsNav($action);
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$nav->show();
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return false;
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}
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return true;
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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 $e) {
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common_log(LOG_WARNING, 'Could\'t logout of Facebook: ' .
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$e->getMessage());
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}
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}
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return true;
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}
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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 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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