606 lines
16 KiB
PHP
606 lines
16 KiB
PHP
<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2010-2011, StatusNet, Inc.
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*
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* A plugin for integrating Facebook with StatusNet. Includes single-sign-on
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* and publishing notices to Facebook using Facebook's Graph API.
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*
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* PHP version 5
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*
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* 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 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 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_SERVICE", 2);
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/**
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* Main class for Facebook Bridge plugin
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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 2010-2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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class FacebookBridgePlugin extends Plugin
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{
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public $appId; // Facebook application ID
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public $secret; // Facebook application secret
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public $facebook = null; // Facebook application instance
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public $dir = null; // Facebook plugin dir
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/**
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* Initializer for this plugin
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*
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* Gets an instance of the Facebook API client object
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function initialize()
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{
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// Allow the id and key to be passed in
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// Control panel will override
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if (isset($this->appId)) {
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$appId = common_config('facebook', 'appid');
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if (empty($appId)) {
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Config::save(
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'facebook',
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'appid',
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$this->appId
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);
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}
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}
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if (isset($this->secret)) {
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$secret = common_config('facebook', 'secret');
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if (empty($secret)) {
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Config::save('facebook', 'secret', $this->secret);
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}
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}
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$this->facebook = Facebookclient::getFacebook(
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$this->appId,
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$this->secret
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);
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return true;
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}
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/**
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* Load related modules when needed
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*
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* @param string $cls Name of the class to be loaded
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function onAutoload($cls)
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{
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$dir = dirname(__FILE__);
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switch ($cls)
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{
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case 'Facebook': // Facebook PHP SDK
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include_once $dir . '/extlib/base_facebook.php';
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include_once $dir . '/extlib/facebook.php';
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return false;
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}
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return parent::onAutoload($cls);
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}
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/**
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* Database schema setup
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*
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* We maintain a table mapping StatusNet notices to Facebook items
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*
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* @see Schema
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* @see ColumnDef
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function onCheckSchema()
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{
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$schema = Schema::get();
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$schema->ensureTable('notice_to_item', Notice_to_item::schemaDef());
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return true;
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}
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/*
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* Does this $action need the Facebook JavaScripts?
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*/
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function needsScripts($action)
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{
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static $needy = array(
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'FacebookloginAction',
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'FacebookfinishloginAction',
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'FacebookadminpanelAction',
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'FacebooksettingsAction'
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);
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if (in_array(get_class($action), $needy)) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Map URLs to actions
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*
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* @param URLMapper $m path-to-action mapper
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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public function onRouterInitialized(URLMapper $m)
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{
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// Always add the admin panel route
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$m->connect('panel/facebook', array('action' => 'facebookadminpanel'));
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$m->connect(
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'main/facebooklogin',
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array('action' => 'facebooklogin')
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);
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$m->connect(
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'main/facebookfinishlogin',
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array('action' => 'facebookfinishlogin')
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);
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$m->connect(
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'settings/facebook',
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array('action' => 'facebooksettings')
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);
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$m->connect(
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'facebook/deauthorize',
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array('action' => 'facebookdeauthorize')
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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, but only if there's a Facebook
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* application defined for the plugin to use.
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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 = $action->trimmed('action');
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if ($this->hasApplication()) {
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$action->menuItem(
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// TRANS: Menu item for "Facebook" login.
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common_local_url('facebooklogin'),
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_m('MENU', 'Facebook'),
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// TRANS: Menu title for "Facebook" login.
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_m('Login or register using Facebook.'),
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'facebooklogin' === $action_name
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);
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}
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return true;
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}
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/**
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* If the plugin's installed, this should be accessible to admins
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*/
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function onAdminPanelCheck($name, &$isOK)
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{
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if ($name == 'facebook') {
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$isOK = true;
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return false;
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}
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return true;
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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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// TRANS: Menu item for "Facebook" in administration panel.
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_m('MENU','Facebook'),
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// TRANS: Menu title for "Facebook" in administration panel.
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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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* Add a tab for user-level Facebook settings if the user
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* has a link to Facebook
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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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if ($this->hasApplication()) {
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$action_name = $action->trimmed('action');
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$user = common_current_user();
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$flink = null;
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if (!empty($user)) {
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$flink = Foreign_link::getByUserID(
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$user->id,
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FACEBOOK_SERVICE
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);
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}
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if (!empty($flink)) {
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$action->menuItem(
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common_local_url('facebooksettings'),
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// TRANS: Menu item for "Facebook" in user settings.
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_m('MENU','Facebook'),
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// TRANS: Menu title for "Facebook" in user settings.
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_m('Facebook settings.'),
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$action_name === 'facebooksettings'
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);
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}
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}
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}
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/*
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* Is there a Facebook application for the plugin to use?
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*
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* Checks to see if a Facebook application ID and secret
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* have been configured and a valid Facebook API client
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* object exists.
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*
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*/
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function hasApplication()
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{
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if (!empty($this->facebook)) {
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$appId = $this->facebook->getAppId();
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$secret = $this->facebook->getApiSecret();
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if (!empty($appId) && !empty($secret)) {
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return true;
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}
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}
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return false;
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}
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/*
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* Output a Facebook div for the Facebook JavaSsript SDK to use
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*
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* @param Action $action the current action
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*
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*/
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function onStartShowHeader($action)
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{
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// output <div id="fb-root"></div> as close to <body> as possible
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$action->element('div', array('id' => 'fb-root'));
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return true;
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}
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/*
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* Load the Facebook JavaScript SDK on pages that need them.
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*
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* @param Action $action the current action
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*
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*/
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function onEndShowScripts($action)
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{
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if ($this->needsScripts($action)) {
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$action->script('https://connect.facebook.net/en_US/all.js');
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$script = <<<ENDOFSCRIPT
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function setCookie(name, value) {
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var date = new Date();
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date.setTime(date.getTime() + (5 * 60 * 1000)); // 5 mins
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var expires = "; expires=" + date.toGMTString();
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document.cookie = name + "=" + value + expires + "; path=/";
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}
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FB.init({appId: %1\$s, status: true, cookie: true, xfbml: true, oauth: true});
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$('#facebook_button').bind('click', function(event) {
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event.preventDefault();
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FB.login(function(response) {
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if (response.authResponse) {
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// put the access token in a cookie for the next step
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setCookie('fb_access_token', response.authResponse.accessToken);
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window.location.href = '%2\$s';
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} else {
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// NOP (user cancelled login)
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}
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}, {scope:'read_stream,publish_stream,offline_access,user_status,user_location,user_website,email'});
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});
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ENDOFSCRIPT;
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$action->inlineScript(
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sprintf(
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$script,
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json_encode($this->facebook->getAppId()),
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common_local_url('facebookfinishlogin')
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)
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);
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}
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}
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/*
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* Log the user out of Facebook, per the Facebook authentication guide
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*
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* @param Action action the current action
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*/
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function onStartLogout($action)
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{
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if ($this->hasApplication()) {
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$cur = common_current_user();
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$flink = Foreign_link::getByUserID($cur->id, FACEBOOK_SERVICE);
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if (!empty($flink)) {
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$this->facebook->setAccessToken($flink->credentials);
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if (common_config('singleuser', 'enabled')) {
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$user = User::singleUser();
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$destination = common_local_url(
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'showstream',
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array('nickname' => $user->nickname)
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);
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} else {
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$destination = common_local_url('public');
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}
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$logoutUrl = $this->facebook->getLogoutUrl(
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array('next' => $destination)
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);
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common_log(
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LOG_INFO,
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sprintf(
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"Logging user out of Facebook (fbuid = %s)",
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$fbuid
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),
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__FILE__
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);
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$action->logout();
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common_redirect($logoutUrl, 303);
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}
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return true;
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}
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}
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/*
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* Add fbml namespace to our HTML, so Facebook's JavaScript SDK can parse
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* and render XFBML tags
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*
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* @param Action $action the current action
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* @param array $attrs array of attributes for the HTML tag
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*
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* @return nothing
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*/
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function onStartHtmlElement($action, $attrs) {
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if ($this->needsScripts($action)) {
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$attrs = array_merge(
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$attrs,
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array('xmlns:fb' => 'http://www.facebook.com/2008/fbml')
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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 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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if (self::hasApplication() && $notice->isLocal() && $notice->inScope(null)) {
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array_push($transports, 'facebook');
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}
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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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if (self::hasApplication()) {
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$manager->connect('facebook', 'FacebookQueueHandler');
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}
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return true;
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}
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/**
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* If a notice gets deleted, remove the Notice_to_item mapping and
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* delete the item on Facebook
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*
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* @param User $user The user doing the deleting
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* @param Notice $notice The notice getting deleted
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*
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* @return boolean hook value
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*/
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function onStartDeleteOwnNotice(User $user, Notice $notice)
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{
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$client = new Facebookclient($notice);
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$client->streamRemove();
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return true;
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}
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/**
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* Notify remote users when their notices get favorited.
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*
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* @param Profile or User $profile of local user doing the faving
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* @param Notice $notice being favored
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* @return hook return value
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*/
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function onEndFavorNotice(Profile $profile, Notice $notice)
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{
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$client = new Facebookclient($notice, $profile);
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$client->like();
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return true;
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}
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/**
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* Notify remote users when their notices get de-favorited.
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*
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* @param Profile $profile Profile person doing the de-faving
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* @param Notice $notice Notice being favored
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*
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* @return hook return value
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*/
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function onEndDisfavorNotice(Profile $profile, Notice $notice)
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{
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$client = new Facebookclient($notice, $profile);
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$client->unLike();
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return true;
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}
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/**
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* Add links in the user's profile block to their Facebook profile URL.
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*
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* @param Profile $profile The profile being shown
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* @param Array &$links Writeable array of arrays (href, text, image).
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*
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* @return boolean hook value (true)
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*/
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function onOtherAccountProfiles($profile, &$links)
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{
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$fuser = null;
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$flink = Foreign_link::getByUserID($profile->id, FACEBOOK_SERVICE);
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if (!empty($flink)) {
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$fuser = $this->getFacebookUser($flink->foreign_id);
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if (!empty($fuser)) {
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$links[] = array("href" => $fuser->link,
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"text" => sprintf(_("%s on Facebook"), $fuser->name),
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"image" => $this->path("images/f_logo.png"));
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}
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}
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return true;
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}
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function getFacebookUser($id) {
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$key = Cache::key(sprintf("FacebookBridgePlugin:userdata:%s", $id));
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$c = Cache::instance();
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if ($c) {
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$obj = $c->get($key);
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if ($obj) {
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return $obj;
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}
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}
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$url = sprintf("https://graph.facebook.com/%s", $id);
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$client = new HTTPClient();
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$resp = $client->get($url);
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if (!$resp->isOK()) {
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return null;
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}
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$user = json_decode($resp->getBody());
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if ($user->error) {
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return null;
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}
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if ($c) {
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$c->set($key, $user);
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}
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return $user;
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}
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/*
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* Add version info for this plugin
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*
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* @param array &$versions plugin version descriptions
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*/
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function onPluginVersion(array &$versions)
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{
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$versions[] = array(
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'name' => 'Facebook Bridge',
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'version' => GNUSOCIAL_VERSION,
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'author' => 'Craig Andrews, Zach Copley',
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'homepage' => 'http://status.net/wiki/Plugin:FacebookBridge',
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'rawdescription' =>
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// TRANS: Plugin description.
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_m('A plugin for integrating StatusNet with Facebook.')
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);
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return true;
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}
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}
|