plugins/FBConnect/FBConnectPlugin.php

   1 <?php
   2 /**
   3  * Laconica, the distributed open-source microblogging tool
   4  *
   5  * Plugin to enable Facebook Connect
   6  *
   7  * PHP version 5
   8  *
   9  * LICENCE: This program is free software: you can redistribute it and/or modify
  10  * it under the terms of the GNU Affero General Public License as published by
  11  * the Free Software Foundation, either version 3 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU Affero General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Affero General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  *
  22  * @category  Plugin
  23  * @package   Laconica
  24  * @author    Zach Copley <zach@controlyourself.ca>
  25  * @copyright 2009 Control Yourself, Inc.
  26  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  27  * @link      http://laconi.ca/
  28  */
  29
  30 if (!defined('LACONICA')) {
  31     exit(1);
  32 }
  33
  34 define("FACEBOOK_CONNECT_SERVICE", 3);
  35
  36 require_once INSTALLDIR . '/lib/facebookutil.php';
  37 require_once INSTALLDIR . '/plugins/FBConnect/FBConnectAuth.php';
  38 require_once INSTALLDIR . '/plugins/FBConnect/FBConnectLogin.php';
  39 require_once INSTALLDIR . '/plugins/FBConnect/FBConnectSettings.php';
  40 require_once INSTALLDIR . '/plugins/FBConnect/FBCLoginGroupNav.php';
  41 require_once INSTALLDIR . '/plugins/FBConnect/FBCSettingsNav.php';
  42 require_once INSTALLDIR . '/plugins/FBConnect/FBC_XDReceiver.php';
  43
  44 /**
  45  * Plugin to enable Facebook Connect
  46  *
  47  * @category Plugin
  48  * @package  Laconica
  49  * @author   Zach Copley <zach@controlyourself.ca>
  50  * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  51  * @link     http://laconi.ca/
  52  */
  53
  54 class FBConnectPlugin extends Plugin
  55 {
  56     function __construct()
  57     {
  58         parent::__construct();
  59     }
  60
  61     // Hook in new actions
  62     function onRouterInitialized(&$m) {
  63         $m->connect('main/facebookconnect', array('action' => 'FBConnectAuth'));
  64         $m->connect('main/facebooklogin', array('action' => 'FBConnectLogin'));
  65         $m->connect('settings/facebook', array('action' => 'FBConnectSettings'));
  66         $m->connect('xd_receiver.html', array('action' => 'FBC_XDReceiver'));
  67      }
  68
  69     // Add in xmlns:fb
  70     function onStartShowHTML($action)
  71     {
  72         // XXX: Horrible hack to make Safari, FF2, and Chrome work with
  73         // Facebook Connect. These browser cannot use Facebook's
  74         // DOM parsing routines unless the mime type of the page is
  75         // text/html even though Facebook Connect uses XHTML.  This is
  76         // A bug in Facebook Connect, and this is a temporary solution
  77         // until they fix their JavaScript libs.
  78         header('Content-Type: text/html');
  79
  80         $action->extraHeaders();
  81
  82         $action->startXML('html',
  83             '-//W3C//DTD XHTML 1.0 Strict//EN',
  84             'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
  85
  86         $language = $action->getLanguage();
  87
  88         $action->elementStart('html',
  89             array('xmlns'  => 'http://www.w3.org/1999/xhtml',
  90                   'xmlns:fb' => 'http://www.facebook.com/2008/fbml',
  91                   'xml:lang' => $language,
  92                   'lang'     => $language));
  93
  94         return false;
  95     }
  96
  97     // Note: this script needs to appear in the <body>
  98
  99     function onStartShowHeader($action)
 100     {
 101         $apikey = common_config('facebook', 'apikey');
 102         $plugin_path = common_path('plugins/FBConnect');
 103
 104         $login_url = common_local_url('FBConnectAuth');
 105         $logout_url = common_local_url('logout');
 106
 107         // XXX: Facebook says we don't need this FB_RequireFeatures(),
 108         // but we actually do, for IE and Safari. Gar.
 109
 110         $html = sprintf('<script type="text/javascript">
 111                             window.onload = function () {
 112                                 FB_RequireFeatures(
 113                                     ["XFBML"],
 114                                         function() {
 115                                             FB.Facebook.init("%s", "../xd_receiver.html");
 116                                         }
 117                                     ); }
 118
 119                             function goto_login() {
 120                                 window.location = "%s";
 121                             }
 122
 123                             function goto_logout() {
 124                                 window.location = "%s";
 125                             }
 126                           </script>', $apikey,
 127                               $login_url, $logout_url);
 128
 129         $action->raw($html);
 130     }
 131
 132     // Note: this script needs to appear as close as possible to </body>
 133
 134     function onEndShowFooter($action)
 135     {
 136
 137         $action->element('script',
 138             array('type' => 'text/javascript',
 139                   'src'  => 'http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php'),
 140                   '');
 141     }
 142
 143     function onEndShowLaconicaStyles($action)
 144     {
 145         $action->element('link', array('rel' => 'stylesheet',
 146             'type' => 'text/css',
 147             'href' => common_path('plugins/FBConnect/FBConnectPlugin.css')));
 148     }
 149
 150     function onStartPrimaryNav($action)
 151     {
 152         $user = common_current_user();
 153
 154         if ($user) {
 155
 156             $flink = Foreign_link::getByUserId($user->id,
 157                 FACEBOOK_CONNECT_SERVICE);
 158             $fbuid = 0;
 159
 160             if ($flink) {
 161
 162                 try {
 163
 164                     $facebook = getFacebook();
 165                     $fbuid = getFacebook()->get_loggedin_user();
 166
 167                 } catch (Exception $e) {
 168                     common_log(LOG_WARNING,
 169                         'Problem getting Facebook client: ' .
 170                             $e->getMessage());
 171                 }
 172
 173                 // Display Facebook Logged in indicator w/Facebook favicon
 174
 175                 if ($fbuid > 0) {
 176
 177                     $action->elementStart('li', array('id' => 'nav_fb'));
 178                     $action->elementStart('fb:profile-pic', array('uid' => $flink->foreign_id,
 179                         'linked' => 'false',
 180                         'width' => 16,
 181                         'height' => 16));
 182                     $action->elementEnd('fb:profile-pic');
 183
 184                     $iconurl =  common_path('/plugins/FBConnect/fbfavicon.ico');
 185                     $action->element('img', array('src' => $iconurl));
 186
 187                     $action->elementEnd('li');
 188
 189                 }
 190             }
 191
 192             $action->menuItem(common_local_url('all', array('nickname' => $user->nickname)),
 193                 _('Home'), _('Personal profile and friends timeline'), false, 'nav_home');
 194             $action->menuItem(common_local_url('profilesettings'),
 195                 _('Account'), _('Change your email, avatar, password, profile'), false, 'nav_account');
 196             if (common_config('xmpp', 'enabled')) {
 197                 $action->menuItem(common_local_url('imsettings'),
 198                     _('Connect'), _('Connect to IM, SMS, Twitter'), false, 'nav_connect');
 199             } else {
 200              $action->menuItem(common_local_url('smssettings'),
 201                  _('Connect'), _('Connect to SMS, Twitter'), false, 'nav_connect');
 202             }
 203             $action->menuItem(common_local_url('invite'),
 204                 _('Invite'),
 205                 sprintf(_('Invite friends and colleagues to join you on %s'),
 206                 common_config('site', 'name')),
 207                 false, 'nav_invitecontact');
 208
 209             // Need to override the Logout link to make it do FB stuff
 210             if ($flink && $fbuid > 0) {
 211
 212                 $logout_url = common_local_url('logout');
 213                 $title =  _('Logout from the site');
 214                 $text = _('Logout');
 215
 216                 $html = sprintf('<li id="nav_logout"><a href="%s" title="%s" ' .
 217                     'onclick="FB.Connect.logout(function() { goto_logout() })">%s</a></li>',
 218                     $logout_url, $title, $text);
 219
 220                 $action->raw($html);
 221
 222              } else {
 223                  $action->menuItem(common_local_url('logout'),
 224                      _('Logout'), _('Logout from the site'), false, 'nav_logout');
 225              }
 226          }
 227          else {
 228              if (!common_config('site', 'closed')) {
 229                  $action->menuItem(common_local_url('register'),
 230                      _('Register'), _('Create an account'), false, 'nav_register');
 231              }
 232              $action->menuItem(common_local_url('openidlogin'),
 233                  _('OpenID'), _('Login with OpenID'), false, 'nav_openid');
 234              $action->menuItem(common_local_url('login'),
 235                  _('Login'), _('Login to the site'), false, 'nav_login');
 236          }
 237
 238          $action->menuItem(common_local_url('doc', array('title' => 'help')),
 239              _('Help'), _('Help me!'), false, 'nav_help');
 240          $action->menuItem(common_local_url('peoplesearch'),
 241              _('Search'), _('Search for people or text'), false, 'nav_search');
 242
 243         return false;
 244     }
 245
 246     function onStartShowLocalNavBlock($action)
 247     {
 248         $action_name = get_class($action);
 249
 250         $login_actions = array('LoginAction', 'RegisterAction',
 251             'OpenidloginAction', 'FBConnectLoginAction');
 252
 253         if (in_array($action_name, $login_actions)) {
 254             $nav = new FBCLoginGroupNav($action);
 255             $nav->show();
 256             return false;
 257         }
 258
 259         $connect_actions = array('SmssettingsAction',
 260             'TwittersettingsAction', 'FBConnectSettingsAction');
 261
 262         if (in_array($action_name, $connect_actions)) {
 263             $nav = new FBCSettingsNav($action);
 264             $nav->show();
 265             return false;
 266         }
 267
 268         return true;
 269     }
 270
 271     function onStartLogout($action)
 272     {
 273         $user = common_current_user();
 274
 275         $flink = Foreign_link::getByUserId($user->id, FACEBOOK_CONNECT_SERVICE);
 276
 277         $action->logout();
 278
 279         if ($flink) {
 280
 281             $facebook = getFacebook();
 282
 283             try {
 284                 $fbuid = $facebook->get_loggedin_user();
 285
 286                 if ($fbuid > 0) {
 287                     $facebook->logout(common_local_url('public'));
 288                 }
 289
 290             } catch (Exception $e) {
 291                 common_log(LOG_WARNING, 'Could\'t logout of Facebook: ' .
 292                     $e->getMessage());
 293             }
 294         }
 295
 296         return true;
 297     }
 298
 299 }