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;
63 var $mode = 'conversation';
65 function isReadOnly($args)
71 * Read and validate arguments
73 * @param array $args URL parameters
75 * @return boolean success value
77 function prepare($args)
79 parent::prepare($args);
80 $this->page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
82 if ($this->page > MAX_PUBLIC_PAGE) {
83 // TRANS: Client error displayed when requesting a public timeline page beyond the page limit.
84 // TRANS: %s is the page limit.
85 $this->clientError(sprintf(_('Beyond the page limit (%s).'), MAX_PUBLIC_PAGE));
88 common_set_returnto($this->selfUrl());
90 $this->userProfile = Profile::current();
92 $this->mode = $this->trimmed('mode', 'conversation');
94 if ($this->mode == 'stream') {
95 $stream = new PublicNoticeStream($this->userProfile);
97 $stream = new ThreadingPublicNoticeStream($this->userProfile);
100 $this->notice = $stream->getNotices(($this->page-1)*NOTICES_PER_PAGE,
101 NOTICES_PER_PAGE + 1);
103 if (!$this->notice) {
104 // TRANS: Server error displayed when a public timeline cannot be retrieved.
105 $this->serverError(_('Could not retrieve public timeline.'));
109 if($this->page > 1 && $this->notice->N == 0){
110 // TRANS: Server error when page not found (404).
111 $this->serverError(_('No such page.'),$code=404);
120 * Show the public stream, using recipe method showPage()
122 * @param array $args arguments, mostly unused
126 function handle($args)
128 parent::handle($args);
136 * @return page title, including page number if over 1
140 if ($this->page > 1) {
141 // TRANS: Title for all public timeline pages but the first.
142 // TRANS: %d is the page number.
143 return sprintf(_('Public timeline, page %d'), $this->page);
145 // TRANS: Title for the first public timeline page.
146 return _('Public timeline');
153 $this->element('meta', array('http-equiv' => 'X-XRDS-Location',
154 'content' => common_local_url('publicxrds')));
156 $rsd = common_local_url('rsd');
158 // RSD, http://tales.phrasewise.com/rfc/rsd
160 $this->element('link', array('rel' => 'EditURI',
161 'type' => 'application/rsd+xml',
166 * Output <head> elements for RSS and Atom feeds
172 return array(new Feed(Feed::JSON,
173 common_local_url('ApiTimelinePublic',
174 array('format' => 'as')),
175 // TRANS: Link description for public timeline feed.
176 _('Public Timeline Feed (Activity Streams JSON)')),
177 new Feed(Feed::RSS1, common_local_url('publicrss'),
178 // TRANS: Link description for public timeline feed.
179 _('Public Timeline Feed (RSS 1.0)')),
181 common_local_url('ApiTimelinePublic',
182 array('format' => 'rss')),
183 // TRANS: Link description for public timeline feed.
184 _('Public Timeline Feed (RSS 2.0)')),
186 common_local_url('ApiTimelinePublic',
187 array('format' => 'atom')),
188 // TRANS: Link description for public timeline feed.
189 _('Public Timeline Feed (Atom)')));
192 function showEmptyList()
194 // TRANS: Text displayed for public feed when there are no public notices.
195 $message = _('This is the public timeline for %%site.name%% but no one has posted anything yet.') . ' ';
197 if (common_logged_in()) {
198 // TRANS: Additional text displayed for public feed when there are no public notices for a logged in user.
199 $message .= _('Be the first to post!');
202 if (! (common_config('site','closed') || common_config('site','inviteonly'))) {
203 // TRANS: Additional text displayed for public feed when there are no public notices for a not logged in user.
204 $message .= _('Why not [register an account](%%action.register%%) and be the first to post!');
208 $this->elementStart('div', 'guide');
209 $this->raw(common_markup_to_html($message));
210 $this->elementEnd('div');
214 * Fill the content area
216 * Shows a list of the notices in the public stream, with some pagination
221 function showContent()
223 if ($this->mode == 'stream') {
224 $nl = new NoticeList($this->notice, $this);
226 $nl = new ThreadedNoticeList($this->notice, $this, $this->userProfile);
232 $this->showEmptyList();
235 $this->pagination($this->page > 1, $cnt > NOTICES_PER_PAGE,
236 $this->page, 'public');
239 function showSections()
241 // Show invite button, as long as site isn't closed, and
242 // we have a logged in user.
243 if (!common_config('site', 'closed') && common_logged_in()) {
244 if (!common_config('site', 'private')) {
245 $ibs = new InviteButtonSection(
247 // TRANS: Button text for inviting more users to the StatusNet instance.
248 // TRANS: Less business/enterprise-oriented language for public sites.
249 _m('BUTTON', 'Send invite')
252 $ibs = new InviteButtonSection($this);
257 $pop = new PopularNoticeSection($this);
259 if (!common_config('performance', 'high')) {
260 $cloud = new PublicTagCloudSection($this);
263 $feat = new FeaturedUsersSection($this);
267 function showAnonymousMessage()
269 if (! (common_config('site','closed') || common_config('site','inviteonly'))) {
270 // TRANS: Message for not logged in users at an invite-only site trying to view the public feed of notices.
271 // TRANS: This message contains Markdown links. Please mind the formatting.
272 $m = _('This is %%site.name%%, a [micro-blogging](http://en.wikipedia.org/wiki/Micro-blogging) service ' .
273 'based on the Free Software [StatusNet](http://status.net/) tool. ' .
274 '[Join now](%%action.register%%) to share notices about yourself with friends, family, and colleagues! ' .
275 '([Read more](%%doc.help%%))');
277 // TRANS: Message for not logged in users at a closed 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.');
282 $this->elementStart('div', array('id' => 'anon_notice'));
283 $this->raw(common_markup_to_html($m));
284 $this->elementEnd('div');
288 class ThreadingPublicNoticeStream extends ThreadingNoticeStream
290 function __construct($profile)
292 parent::__construct(new PublicNoticeStream($profile));