3 * StatusNet, the distributed open-source microblogging tool
5 * Action for displaying the public stream
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.
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.
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/>.
24 * @author Evan Prodromou <evan@status.net>
25 * @copyright 2008-2009 StatusNet, Inc.
26 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
27 * @link http://status.net/
30 if (!defined('STATUSNET') && !defined('LACONICA')) {
34 require_once INSTALLDIR.'/lib/publicgroupnav.php';
35 require_once INSTALLDIR.'/lib/noticelist.php';
36 require_once INSTALLDIR.'/lib/feedlist.php';
38 // Farther than any human will go
40 define('MAX_PUBLIC_PAGE', 100);
43 * Action for displaying the public stream
47 * @author Evan Prodromou <evan@status.net>
48 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
49 * @link http://status.net/
51 * @see PublicrssAction
52 * @see PublicxrdsAction
54 class PublicAction extends Action
57 * page of the stream we're on; default = 1
62 var $userProfile = null;
64 function isReadOnly($args)
70 * Read and validate arguments
72 * @param array $args URL parameters
74 * @return boolean success value
76 function prepare($args)
78 parent::prepare($args);
79 $this->page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
81 if ($this->page > MAX_PUBLIC_PAGE) {
82 // TRANS: Client error displayed when requesting a public timeline page beyond the page limit.
83 // TRANS: %s is the page limit.
84 $this->clientError(sprintf(_('Beyond the page limit (%s).'), MAX_PUBLIC_PAGE));
87 common_set_returnto($this->selfUrl());
89 $this->userProfile = Profile::current();
91 $user = common_current_user();
93 if (!empty($user) && $user->streamModeOnly()) {
94 $stream = new PublicNoticeStream($this->userProfile);
96 $stream = new ThreadingPublicNoticeStream($this->userProfile);
99 $this->notice = $stream->getNotices(($this->page-1)*NOTICES_PER_PAGE,
100 NOTICES_PER_PAGE + 1);
102 if (!$this->notice) {
103 // TRANS: Server error displayed when a public timeline cannot be retrieved.
104 $this->serverError(_('Could not retrieve public timeline.'));
107 if($this->page > 1 && $this->notice->N == 0){
108 // TRANS: Server error when page not found (404).
109 $this->serverError(_('No such page.'),$code=404);
118 * Show the public stream, using recipe method showPage()
120 * @param array $args arguments, mostly unused
124 function handle($args)
126 parent::handle($args);
134 * @return page title, including page number if over 1
138 if ($this->page > 1) {
139 // TRANS: Title for all public timeline pages but the first.
140 // TRANS: %d is the page number.
141 return sprintf(_('Public timeline, page %d'), $this->page);
143 // TRANS: Title for the first public timeline page.
144 return _('Public timeline');
151 $this->element('meta', array('http-equiv' => 'X-XRDS-Location',
152 'content' => common_local_url('publicxrds')));
154 $rsd = common_local_url('rsd');
156 // RSD, http://tales.phrasewise.com/rfc/rsd
158 $this->element('link', array('rel' => 'EditURI',
159 'type' => 'application/rsd+xml',
162 if ($this->page != 1) {
163 $this->element('link', array('rel' => 'canonical',
164 'href' => common_local_url('public')));
169 * Output <head> elements for RSS and Atom feeds
175 return array(new Feed(Feed::JSON,
176 common_local_url('ApiTimelinePublic',
177 array('format' => 'as')),
178 // TRANS: Link description for public timeline feed.
179 _('Public Timeline Feed (Activity Streams JSON)')),
180 new Feed(Feed::RSS1, common_local_url('publicrss'),
181 // TRANS: Link description for public timeline feed.
182 _('Public Timeline Feed (RSS 1.0)')),
184 common_local_url('ApiTimelinePublic',
185 array('format' => 'rss')),
186 // TRANS: Link description for public timeline feed.
187 _('Public Timeline Feed (RSS 2.0)')),
189 common_local_url('ApiTimelinePublic',
190 array('format' => 'atom')),
191 // TRANS: Link description for public timeline feed.
192 _('Public Timeline Feed (Atom)')));
195 function showEmptyList()
197 // TRANS: Text displayed for public feed when there are no public notices.
198 $message = _('This is the public timeline for %%site.name%% but no one has posted anything yet.') . ' ';
200 if (common_logged_in()) {
201 // TRANS: Additional text displayed for public feed when there are no public notices for a logged in user.
202 $message .= _('Be the first to post!');
205 if (! (common_config('site','closed') || common_config('site','inviteonly'))) {
206 // TRANS: Additional text displayed for public feed when there are no public notices for a not logged in user.
207 $message .= _('Why not [register an account](%%action.register%%) and be the first to post!');
211 $this->elementStart('div', 'guide');
212 $this->raw(common_markup_to_html($message));
213 $this->elementEnd('div');
217 * Fill the content area
219 * Shows a list of the notices in the public stream, with some pagination
224 function showContent()
226 $user = common_current_user();
228 if (!empty($user) && $user->streamModeOnly()) {
229 $nl = new NoticeList($this->notice, $this);
231 $nl = new ThreadedNoticeList($this->notice, $this, $this->userProfile);
237 $this->showEmptyList();
240 $this->pagination($this->page > 1, $cnt > NOTICES_PER_PAGE,
241 $this->page, 'public');
244 function showSections()
246 // Show invite button, as long as site isn't closed, and
247 // we have a logged in user.
248 if (common_config('invite', 'enabled') && !common_config('site', 'closed') && common_logged_in()) {
249 if (!common_config('site', 'private')) {
250 $ibs = new InviteButtonSection(
252 // TRANS: Button text for inviting more users to the StatusNet instance.
253 // TRANS: Less business/enterprise-oriented language for public sites.
254 _m('BUTTON', 'Send invite')
257 $ibs = new InviteButtonSection($this);
262 $p = Profile::current();
264 $pop = new PopularNoticeSection($this, $p);
266 if (!common_config('performance', 'high')) {
267 $cloud = new PublicTagCloudSection($this);
270 $feat = new FeaturedUsersSection($this);
274 function showAnonymousMessage()
276 if (! (common_config('site','closed') || common_config('site','inviteonly'))) {
277 // TRANS: Message for not logged in users at an invite-only site trying to view the public feed of notices.
278 // TRANS: This message contains Markdown links. Please mind the formatting.
279 $m = _('This is %%site.name%%, a [micro-blogging](http://en.wikipedia.org/wiki/Micro-blogging) service ' .
280 'based on the Free Software [StatusNet](http://status.net/) tool. ' .
281 '[Join now](%%action.register%%) to share notices about yourself with friends, family, and colleagues! ' .
282 '([Read more](%%doc.help%%))');
284 // TRANS: Message for not logged in users at a closed site trying to view the public feed of notices.
285 // TRANS: This message contains Markdown links. Please mind the formatting.
286 $m = _('This is %%site.name%%, a [micro-blogging](http://en.wikipedia.org/wiki/Micro-blogging) service ' .
287 'based on the Free Software [StatusNet](http://status.net/) tool.');
289 $this->elementStart('div', array('id' => 'anon_notice'));
290 $this->raw(common_markup_to_html($m));
291 $this->elementEnd('div');
295 class ThreadingPublicNoticeStream extends ThreadingNoticeStream
297 function __construct($profile)
299 parent::__construct(new PublicNoticeStream($profile));