diff options
Diffstat (limited to 'plugins/Facebook/FacebookPlugin.php')
| -rw-r--r-- | plugins/Facebook/FacebookPlugin.php | 553 |
1 files changed, 553 insertions, 0 deletions
diff --git a/plugins/Facebook/FacebookPlugin.php b/plugins/Facebook/FacebookPlugin.php new file mode 100644 index 000000000..b68534b24 --- /dev/null +++ b/plugins/Facebook/FacebookPlugin.php @@ -0,0 +1,553 @@ +<?php +/** + * StatusNet, the distributed open-source microblogging tool + * + * Plugin to add a StatusNet Facebook application + * + * PHP version 5 + * + * LICENCE: This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * @category Plugin + * @package StatusNet + * @author Zach Copley <zach@status.net> + * @copyright 2009 StatusNet, Inc. + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://status.net/ + */ + +if (!defined('STATUSNET')) { + exit(1); +} + +define("FACEBOOK_CONNECT_SERVICE", 3); + +require_once INSTALLDIR . '/plugins/Facebook/facebookutil.php'; + +/** + * Facebook plugin to add a StatusNet Facebook application + * + * @category Plugin + * @package StatusNet + * @author Zach Copley <zach@status.net> + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://status.net/ + */ + +class FacebookPlugin extends Plugin +{ + + /** + * Add Facebook app actions to the router table + * + * Hook for RouterInitialized event. + * + * @param Net_URL_Mapper &$m path-to-action mapper + * + * @return boolean hook return + */ + + function onRouterInitialized($m) + { + + // Facebook App stuff + + $m->connect('facebook/app', array('action' => 'facebookhome')); + $m->connect('facebook/app/index.php', array('action' => 'facebookhome')); + $m->connect('facebook/app/settings.php', + array('action' => 'facebooksettings')); + $m->connect('facebook/app/invite.php', array('action' => 'facebookinvite')); + $m->connect('facebook/app/remove', array('action' => 'facebookremove')); + + // Facebook Connect stuff + + $m->connect('main/facebookconnect', array('action' => 'FBConnectAuth')); + $m->connect('main/facebooklogin', array('action' => 'FBConnectLogin')); + $m->connect('settings/facebook', array('action' => 'FBConnectSettings')); + $m->connect('xd_receiver.html', array('action' => 'FBC_XDReceiver')); + + return true; + } + + /** + * Automatically load the actions and libraries used by the Facebook app + * + * @param Class $cls the class + * + * @return boolean hook return + * + */ + + function onAutoload($cls) + { + switch ($cls) { + case 'FacebookAction': + case 'FacebookhomeAction': + case 'FacebookinviteAction': + case 'FacebookremoveAction': + case 'FacebooksettingsAction': + include_once INSTALLDIR . '/plugins/Facebook/' . + strtolower(mb_substr($cls, 0, -6)) . '.php'; + return false; + case 'FBConnectAuthAction': + case 'FBConnectLoginAction': + case 'FBConnectSettingsAction': + case 'FBC_XDReceiverAction': + include_once INSTALLDIR . '/plugins/Facebook/' . + mb_substr($cls, 0, -6) . '.php'; + return false; + case 'FBCLoginGroupNav': + include_once INSTALLDIR . '/plugins/Facebook/FBCLoginGroupNav.php'; + return false; + case 'FBCSettingsNav': + include_once INSTALLDIR . '/plugins/Facebook/FBCSettingsNav.php'; + return false; + default: + return true; + } + } + + /** + * Override normal HTML output to force the content type to + * text/html and add in xmlns:fb + * + * @param Action $action the current action + * + * @return void + */ + + function onStartShowHTML($action) + { + + if ($this->reqFbScripts($action)) { + + // XXX: Horrible hack to make Safari, FF2, and Chrome work with + // Facebook Connect. These browser cannot use Facebook's + // DOM parsing routines unless the mime type of the page is + // text/html even though Facebook Connect uses XHTML. This is + // A bug in Facebook Connect, and this is a temporary solution + // until they fix their JavaScript libs. + + header('Content-Type: text/html'); + + $action->extraHeaders(); + + $action->startXML('html'); + + $language = $action->getLanguage(); + + $action->elementStart('html', + array('xmlns' => 'http://www.w3.org/1999/xhtml', + 'xmlns:fb' => 'http://www.facebook.com/2008/fbml', + 'xml:lang' => $language, + 'lang' => $language)); + + return false; + + } else { + + return true; + } + } + + /** + * Add in the Facebook Connect JavaScript stuff + * + * Note: this script needs to appear in the <body> + * + * @param Action $action the current action + * + * @return void + * + */ + + function onEndShowScripts($action) + { + if ($this->reqFbScripts($action)) { + + $apikey = common_config('facebook', 'apikey'); + $plugin_path = common_path('plugins/Facebook'); + + $login_url = common_local_url('FBConnectAuth'); + $logout_url = common_local_url('logout'); + + // XXX: Facebook says we don't need this FB_RequireFeatures(), + // but we actually do, for IE and Safari. Gar. + + $js = '<script type="text/javascript">'; + $js .= ' $(document).ready(function () {'; + $js .= ' FB_RequireFeatures('; + $js .= ' ["XFBML"], function() {'; + $js .= ' FB.init("%1$s", "../xd_receiver.html");'; + $js .= ' }'; + $js .= ' );'; + $js .= ' });'; + + $js .= ' function goto_login() {'; + $js .= ' window.location = "%2$s";'; + $js .= ' }'; + + // The below function alters the logout link so that it logs the user out + // of Facebook Connect as well as the site. However, for some pages + // (FB Connect Settings) we need to output the FB Connect scripts (to + // show an existing FB connection even if the user isn't authenticated + // with Facebook connect) but NOT alter the logout link. And the only + // way to reliably do that is with the FB Connect .js libs. Crazy. + + $js .= ' FB.ensureInit(function() {'; + $js .= ' FB.Connect.ifUserConnected('; + $js .= ' function() { '; + $js .= ' $(\'#nav_logout a\').attr(\'href\', \'#\');'; + $js .= ' $(\'#nav_logout a\').click(function() {'; + $js .= ' FB.Connect.logoutAndRedirect(\'%3$s\');'; + $js .= ' return false;'; + $js .= ' })'; + $js .= ' },'; + $js .= ' function() {'; + $js .= ' return false;'; + $js .= ' }'; + $js .= ' );'; + $js .= ' });'; + $js .= '</script>'; + + $js = sprintf($js, $apikey, $login_url, $logout_url); + + // Compress the bugger down a bit + + $js = str_replace(' ', '', $js); + + $action->raw(" $js"); // leading two spaces to make it line up + } + + } + + /** + * Add in an additional Facebook Connect script that's supposed to + * appear as close as possible to </body> + * + * @param Action $action the current action + * + * @return void + * + */ + + function onEndShowFooter($action) + { + if ($this->reqFbScripts($action)) { + $action->script('http://static.ak.connect.facebook.com' . + '/js/api_lib/v0.4/FeatureLoader.js.php'); + } + } + + /** + * Output Facebook Connect specific CSS link + * + * @param Action $action the current action + * + * @return void + * + */ + + function onEndShowStatusNetStyles($action) + { + if ($this->reqFbScripts($action)) { + $action->cssLink('plugins/Facebook/FBConnect.css'); + } + } + + /** + * Does the Action we're plugged into require the FB Scripts? We only + * want to output FB namespace, scripts, CSS, etc. on the pages that + * really need them. + * + * @param Action $action the current action + * + * @return boolean true + */ + + function reqFbScripts($action) + { + + // If you're logged in w/FB Connect, you always need the FB stuff + + $fbuid = $this->loggedIn(); + + if (!empty($fbuid)) { + return true; + } + + // List of actions that require FB stuff + + $needy = array('FBConnectLoginAction', + 'FBConnectauthAction', + 'FBConnectSettingsAction'); + + if (in_array(get_class($action), $needy)) { + return true; + } + + return false; + + } + + /** + * Is the user currently logged in with FB Connect? + * + * @return mixed $fbuid the Facebook ID of the logged in user, or null + */ + + function loggedIn() + { + $user = common_current_user(); + + if (!empty($user)) { + + $flink = Foreign_link::getByUserId($user->id, + FACEBOOK_CONNECT_SERVICE); + $fbuid = 0; + + if (!empty($flink)) { + + try { + + $facebook = getFacebook(); + $fbuid = $facebook->get_loggedin_user(); + + } catch (Exception $e) { + common_log(LOG_WARNING, 'Facebook Connect Plugin - ' . + 'Problem getting Facebook user: ' . + $e->getMessage()); + } + + if ($fbuid > 0) { + return $fbuid; + } + } + } + + return null; + } + + /** + * Add in a Facebook Connect avatar to the primary nav menu + * + * @param Action $action the current action + * + * @return void + * + */ + + function onStartPrimaryNav($action) + { + $user = common_current_user(); + + $connect = 'FBConnectSettings'; + if (common_config('xmpp', 'enabled')) { + $connect = 'imsettings'; + } else if (common_config('sms', 'enabled')) { + $connect = 'smssettings'; + } else if (common_config('twitter', 'enabled')) { + $connect = 'twittersettings'; + } + + if (!empty($user)) { + + $fbuid = $this->loggedIn(); + + if (!empty($fbuid)) { + + /* Default FB silhouette pic for FB users who haven't + uploaded a profile pic yet. */ + + $silhouetteUrl = + 'http://static.ak.fbcdn.net/pics/q_silhouette.gif'; + + $url = $this->getProfilePicURL($fbuid); + + $action->elementStart('li', array('id' => 'nav_fb')); + + $action->element('img', array('id' => 'fbc_profile-pic', + 'src' => (!empty($url)) ? $url : $silhouetteUrl, + 'alt' => 'Facebook Connect User', + 'width' => '16'), ''); + + $iconurl = common_path('plugins/Facebook/fbfavicon.ico'); + $action->element('img', array('id' => 'fb_favicon', + 'src' => $iconurl)); + + $action->elementEnd('li'); + + } + } + + return true; + } + + /** + * Alter the local nav menu to have a Facebook Connect login and + * settings pages + * + * @param Action $action the current action + * + * @return void + * + */ + + function onStartShowLocalNavBlock($action) + { + $action_name = get_class($action); + + $login_actions = array('LoginAction', 'RegisterAction', + 'OpenidloginAction', 'FBConnectLoginAction'); + + if (in_array($action_name, $login_actions)) { + $nav = new FBCLoginGroupNav($action); + $nav->show(); + return false; + } + + $connect_actions = array('SmssettingsAction', 'ImsettingsAction', + 'TwittersettingsAction', 'FBConnectSettingsAction'); + + if (in_array($action_name, $connect_actions)) { + $nav = new FBCSettingsNav($action); + $nav->show(); + return false; + } + + return true; + } + + /** + * Have the logout process do some Facebook Connect cookie cleanup + * + * @param Action $action the current action + * + * @return void + */ + + function onStartLogout($action) + { + $action->logout(); + $fbuid = $this->loggedIn(); + + if (!empty($fbuid)) { + try { + $facebook = getFacebook(); + $facebook->expire_session(); + } catch (Exception $e) { + common_log(LOG_WARNING, 'Facebook Connect Plugin - ' . + 'Could\'t logout of Facebook: ' . + $e->getMessage()); + } + } + + return true; + } + + /** + * Get the URL of the user's Facebook avatar + * + * @param int $fbuid the Facebook user ID + * + * @return string $url the url for the user's Facebook avatar + */ + + function getProfilePicURL($fbuid) + { + $facebook = getFacebook(); + $url = null; + + try { + + $fqry = 'SELECT pic_square FROM user WHERE uid = %s'; + + $result = $facebook->api_client->fql_query(sprintf($fqry, $fbuid)); + + if (!empty($result)) { + $url = $result[0]['pic_square']; + } + + } catch (Exception $e) { + common_log(LOG_WARNING, 'Facebook Connect Plugin - ' . + "Facebook client failure requesting profile pic!"); + } + + return $url; + } + + /** + * Add a Facebook queue item for each notice + * + * @param Notice $notice the notice + * @param array &$transports the list of transports (queues) + * + * @return boolean hook return + */ + + function onStartEnqueueNotice($notice, &$transports) + { + array_push($transports, 'facebook'); + return true; + } + + /** + * broadcast the message when not using queuehandler + * + * @param Notice &$notice the notice + * @param array $queue destination queue + * + * @return boolean hook return + */ + + function onUnqueueHandleNotice(&$notice, $queue) + { + if (($queue == 'facebook') && ($this->_isLocal($notice))) { + facebookBroadcastNotice($notice); + return false; + } + return true; + } + + /** + * Determine whether the notice was locally created + * + * @param Notice $notice the notice + * + * @return boolean locality + */ + + function _isLocal($notice) + { + return ($notice->is_local == Notice::LOCAL_PUBLIC || + $notice->is_local == Notice::LOCAL_NONPUBLIC); + } + + /** + * Add Facebook queuehandler to the list of daemons to start + * + * @param array $daemons the list fo daemons to run + * + * @return boolean hook return + * + */ + + function onGetValidDaemons($daemons) + { + array_push($daemons, INSTALLDIR . + '/plugins/Facebook/facebookqueuehandler.php'); + return true; + } + +} |