]> git.mxchange.org Git - quix0rs-gnu-social.git/blob - plugins/FBConnect/FBConnectPlugin.php
Merge branch 'oembed-provider' into 0.8.x
[quix0rs-gnu-social.git] / 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
73         if ($this->reqFbScripts($action)) {
74
75             // XXX: Horrible hack to make Safari, FF2, and Chrome work with
76             // Facebook Connect. These browser cannot use Facebook's
77             // DOM parsing routines unless the mime type of the page is
78             // text/html even though Facebook Connect uses XHTML.  This is
79             // A bug in Facebook Connect, and this is a temporary solution
80             // until they fix their JavaScript libs.
81             header('Content-Type: text/html');
82
83             $action->extraHeaders();
84
85             $action->startXML('html',
86                 '-//W3C//DTD XHTML 1.0 Strict//EN',
87                 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
88
89             $language = $action->getLanguage();
90
91             $action->elementStart('html',
92                 array('xmlns'  => 'http://www.w3.org/1999/xhtml',
93                       'xmlns:fb' => 'http://www.facebook.com/2008/fbml',
94                       'xml:lang' => $language,
95                       'lang'     => $language));
96
97             return false;
98
99         } else {
100
101             return true;
102         }
103     }
104
105     // Note: this script needs to appear in the <body>
106
107     function onStartShowHeader($action)
108     {
109         if ($this->reqFbScripts($action)) {
110
111             $apikey = common_config('facebook', 'apikey');
112             $plugin_path = common_path('plugins/FBConnect');
113
114             $login_url = common_local_url('FBConnectAuth');
115             $logout_url = common_local_url('logout');
116
117             // XXX: Facebook says we don't need this FB_RequireFeatures(),
118             // but we actually do, for IE and Safari. Gar.
119
120             $html = sprintf('<script type="text/javascript">
121                                 window.onload = function () {
122                                     FB_RequireFeatures(
123                                         ["XFBML"],
124                                             function() {
125                                                 FB.init("%s", "../xd_receiver.html",
126                                                  {"doNotUseCachedConnectState":true });
127
128                                             }
129                                         ); }
130
131                                 function goto_login() {
132                                     window.location = "%s";
133                                 }
134
135                                 function goto_logout() {
136                                     window.location = "%s";
137                                 }
138                               </script>', $apikey,
139                                   $login_url, $logout_url);
140
141             $action->raw($html);
142         }
143
144     }
145
146     // Note: this script needs to appear as close as possible to </body>
147
148     function onEndShowFooter($action)
149     {
150         if ($this->reqFbScripts($action)) {
151
152             $action->element('script',
153                 array('type' => 'text/javascript',
154                       'src'  => 'http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php'),
155                       '');
156         }
157     }
158
159     function onEndShowLaconicaStyles($action)
160     {
161
162         if ($this->reqFbScripts($action)) {
163
164             $action->element('link', array('rel' => 'stylesheet',
165                 'type' => 'text/css',
166                 'href' => common_path('plugins/FBConnect/FBConnectPlugin.css')));
167         }
168     }
169
170     /**
171      * Does the Action we're plugged into require the FB Scripts?  We only
172      * want to output FB namespace, scripts, CSS, etc. on the pages that
173      * really need them.
174      *
175      * @param Action the action in question
176      *
177      * @return boolean true
178      */
179
180     function reqFbScripts($action) {
181
182         // If you're logged in w/FB Connect, you always need the FB stuff
183
184         $fbuid = $this->loggedIn();
185
186         if (!empty($fbuid)) {
187             return true;
188         }
189
190         // List of actions that require FB stuff
191
192         $needy = array('FBConnectLoginAction',
193                        'FBConnectauthAction',
194                        'FBConnectSettingsAction');
195
196         if (in_array(get_class($action), $needy)) {
197             return true;
198         }
199
200         return false;
201
202     }
203
204     /**
205      * Is the user currently logged in with FB Connect?
206      *
207      * @return mixed $fbuid the Facebook ID of the logged in user, or null
208      */
209
210     function loggedIn()
211     {
212         $user = common_current_user();
213
214         if (!empty($user)) {
215
216             $flink = Foreign_link::getByUserId($user->id,
217                 FACEBOOK_CONNECT_SERVICE);
218             $fbuid = 0;
219
220             if (!empty($flink)) {
221
222                 try {
223
224                     $facebook = getFacebook();
225                     $fbuid    = $facebook->api_client->users_getLoggedInUser();
226
227                 } catch (Exception $e) {
228                     common_log(LOG_WARNING,
229                         'Problem getting Facebook user: ' .
230                             $e->getMessage());
231                 }
232
233                 if ($fbuid > 0) {
234                     return $fbuid;
235                 }
236             }
237         }
238
239         return null;
240     }
241
242     function onStartPrimaryNav($action)
243     {
244
245         $user = common_current_user();
246
247         if (!empty($user)) {
248
249             $fbuid = $this->loggedIn();
250
251             if (!empty($fbuid)) {
252
253                 /* Default FB silhouette pic for FB users who haven't
254                    uploaded a profile pic yet. */
255
256                 $silhouetteUrl =
257                     'http://static.ak.fbcdn.net/pics/q_silhouette.gif';
258
259                 $url = $this->getProfilePicURL($fbuid);
260
261                 $action->elementStart('li', array('id' => 'nav_fb'));
262
263                 $action->element('img', array('id' => 'fbc_profile-pic',
264                     'src' => (!empty($url)) ? $url : $silhouetteUrl,
265                     'alt' => 'Facebook Connect User',
266                     'width' => '16'), '');
267
268                 $iconurl =  common_path('plugins/FBConnect/fbfavicon.ico');
269                 $action->element('img', array('id' => 'fb_favicon',
270                     'src' => $iconurl));
271
272                 $action->elementEnd('li');
273
274             }
275
276             $action->menuItem(common_local_url('all', array('nickname' => $user->nickname)),
277                 _('Home'), _('Personal profile and friends timeline'), false, 'nav_home');
278             $action->menuItem(common_local_url('profilesettings'),
279                 _('Account'), _('Change your email, avatar, password, profile'), false, 'nav_account');
280             if (common_config('xmpp', 'enabled')) {
281                 $action->menuItem(common_local_url('imsettings'),
282                     _('Connect'), _('Connect to IM, SMS, Twitter'), false, 'nav_connect');
283             } else {
284              $action->menuItem(common_local_url('smssettings'),
285                  _('Connect'), _('Connect to SMS, Twitter'), false, 'nav_connect');
286             }
287             if (common_config('invite', 'enabled')) {
288                 $action->menuItem(common_local_url('invite'),
289                     _('Invite'),
290                     sprintf(_('Invite friends and colleagues to join you on %s'),
291                     common_config('site', 'name')),
292                     false, 'nav_invitecontact');
293             }
294
295             // Need to override the Logout link to make it do FB stuff
296             if (!empty($fbuid)) {
297
298                 $logout_url = common_local_url('logout');
299                 $title =  _('Logout from the site');
300                 $text = _('Logout');
301
302                 $html = sprintf('<li id="nav_logout"><a href="#" title="%s" ' .
303                     'onclick="FB.Connect.logoutAndRedirect(\'%s\');">%s</a></li>',
304                     $title, $logout_url, $text);
305
306                 $action->raw($html);
307
308              } else {
309                  $action->menuItem(common_local_url('logout'),
310                      _('Logout'), _('Logout from the site'), false, 'nav_logout');
311              }
312          }
313          else {
314              if (!common_config('site', 'closed')) {
315                  $action->menuItem(common_local_url('register'),
316                      _('Register'), _('Create an account'), false, 'nav_register');
317              }
318              $action->menuItem(common_local_url('login'),
319                  _('Login'), _('Login to the site'), false, 'nav_login');
320          }
321
322          $action->menuItem(common_local_url('doc', array('title' => 'help')),
323              _('Help'), _('Help me!'), false, 'nav_help');
324          $action->menuItem(common_local_url('peoplesearch'),
325              _('Search'), _('Search for people or text'), false, 'nav_search');
326
327         return false;
328     }
329
330     function onStartShowLocalNavBlock($action)
331     {
332         $action_name   = get_class($action);
333
334         $login_actions = array('LoginAction', 'RegisterAction',
335             'OpenidloginAction', 'FBConnectLoginAction');
336
337         if (in_array($action_name, $login_actions)) {
338             $nav = new FBCLoginGroupNav($action);
339             $nav->show();
340             return false;
341         }
342
343         $connect_actions = array('SmssettingsAction', 'ImsettingsAction',
344             'TwittersettingsAction', 'FBConnectSettingsAction');
345
346         if (in_array($action_name, $connect_actions)) {
347             $nav = new FBCSettingsNav($action);
348             $nav->show();
349             return false;
350         }
351
352         return true;
353     }
354
355     function onStartLogout($action)
356     {
357         $action->logout();
358         $fbuid = $this->loggedIn();
359
360         if (!empty($fbuid)) {
361             try {
362                 $facebook = getFacebook();
363                 $facebook->expire_session();
364             } catch (Exception $e) {
365                 common_log(LOG_WARNING, 'Could\'t logout of Facebook: ' .
366                     $e->getMessage());
367             }
368         }
369
370         return true;
371     }
372
373     function getProfilePicURL($fbuid)
374     {
375
376         $facebook = getFacebook();
377         $url      = null;
378
379         try {
380
381             $fqry = 'SELECT pic_square FROM user WHERE uid = %s';
382
383             $result = $facebook->api_client->fql_query(sprintf($fqry, $fbuid));
384
385             if (!empty($result)) {
386                 $url = $result[0]['pic_square'];
387             }
388
389         } catch (Exception $e) {
390             common_log(LOG_WARNING, "Facebook client failure requesting profile pic!");
391         }
392
393        return $url;
394
395     }
396
397 }