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 $this->serverError(_('Could not retrieve public timeline.'));
108 if($this->page > 1 && $this->notice->N == 0){
109 // TRANS: Server error when page not found (404).
110 $this->serverError(_('No such page.'),$code=404);
119 * Show the public stream, using recipe method showPage()
121 * @param array $args arguments, mostly unused
125 function handle($args)
127 parent::handle($args);
135 * @return page title, including page number if over 1
139 if ($this->page > 1) {
140 // TRANS: Title for all public timeline pages but the first.
141 // TRANS: %d is the page number.
142 return sprintf(_('Public timeline, page %d'), $this->page);
144 // TRANS: Title for the first public timeline page.
145 return _('Public timeline');
152 $this->element('meta', array('http-equiv' => 'X-XRDS-Location',
153 'content' => common_local_url('publicxrds')));
155 $rsd = common_local_url('rsd');
157 // RSD, http://tales.phrasewise.com/rfc/rsd
159 $this->element('link', array('rel' => 'EditURI',
160 'type' => 'application/rsd+xml',
163 if ($this->page != 1) {
164 $this->element('link', array('rel' => 'canonical',
165 'href' => common_local_url('public')));
170 * Output <head> elements for RSS and Atom feeds
176 return array(new Feed(Feed::JSON,
177 common_local_url('ApiTimelinePublic',
178 array('format' => 'as')),
179 // TRANS: Link description for public timeline feed.
180 _('Public Timeline Feed (Activity Streams JSON)')),
181 new Feed(Feed::RSS1, common_local_url('publicrss'),
182 // TRANS: Link description for public timeline feed.
183 _('Public Timeline Feed (RSS 1.0)')),
185 common_local_url('ApiTimelinePublic',
186 array('format' => 'rss')),
187 // TRANS: Link description for public timeline feed.
188 _('Public Timeline Feed (RSS 2.0)')),
190 common_local_url('ApiTimelinePublic',
191 array('format' => 'atom')),
192 // TRANS: Link description for public timeline feed.
193 _('Public Timeline Feed (Atom)')));
196 function showEmptyList()
198 // TRANS: Text displayed for public feed when there are no public notices.
199 $message = _('This is the public timeline for %%site.name%% but no one has posted anything yet.') . ' ';
201 if (common_logged_in()) {
202 // TRANS: Additional text displayed for public feed when there are no public notices for a logged in user.
203 $message .= _('Be the first to post!');
206 if (! (common_config('site','closed') || common_config('site','inviteonly'))) {
207 // TRANS: Additional text displayed for public feed when there are no public notices for a not logged in user.
208 $message .= _('Why not [register an account](%%action.register%%) and be the first to post!');
212 $this->elementStart('div', 'guide');
213 $this->raw(common_markup_to_html($message));
214 $this->elementEnd('div');
218 * Fill the content area
220 * Shows a list of the notices in the public stream, with some pagination
225 function showContent()
227 $user = common_current_user();
229 if (!empty($user) && $user->streamModeOnly()) {
230 $nl = new NoticeList($this->notice, $this);
232 $nl = new ThreadedNoticeList($this->notice, $this, $this->userProfile);
238 $this->showEmptyList();
241 $this->pagination($this->page > 1, $cnt > NOTICES_PER_PAGE,
242 $this->page, 'public');
245 function showSections()
247 // Show invite button, as long as site isn't closed, and
248 // we have a logged in user.
249 if (!common_config('site', 'closed') && common_logged_in()) {
250 if (!common_config('site', 'private')) {
251 $ibs = new InviteButtonSection(
253 // TRANS: Button text for inviting more users to the StatusNet instance.
254 // TRANS: Less business/enterprise-oriented language for public sites.
255 _m('BUTTON', 'Send invite')
258 $ibs = new InviteButtonSection($this);
263 $p = Profile::current();
265 $pop = new PopularNoticeSection($this, $p);
267 if (!common_config('performance', 'high')) {
268 $cloud = new PublicTagCloudSection($this);
271 $feat = new FeaturedUsersSection($this);
275 function showAnonymousMessage()
277 if (! (common_config('site','closed') || common_config('site','inviteonly'))) {
278 // TRANS: Message for not logged in users at an invite-only site trying to view the public feed of notices.
279 // TRANS: This message contains Markdown links. Please mind the formatting.
280 $m = _('This is %%site.name%%, a [micro-blogging](http://en.wikipedia.org/wiki/Micro-blogging) service ' .
281 'based on the Free Software [StatusNet](http://status.net/) tool. ' .
282 '[Join now](%%action.register%%) to share notices about yourself with friends, family, and colleagues! ' .
283 '([Read more](%%doc.help%%))');
285 // TRANS: Message for not logged in users at a closed site trying to view the public feed of notices.
286 // TRANS: This message contains Markdown links. Please mind the formatting.
287 $m = _('This is %%site.name%%, a [micro-blogging](http://en.wikipedia.org/wiki/Micro-blogging) service ' .
288 'based on the Free Software [StatusNet](http://status.net/) tool.');
290 $this->elementStart('div', array('id' => 'anon_notice'));
291 $this->raw(common_markup_to_html($m));
292 $this->elementEnd('div');
296 class ThreadingPublicNoticeStream extends ThreadingNoticeStream
298 function __construct($profile)
300 parent::__construct(new PublicNoticeStream($profile));