forked from GNUsocial/gnu-social
138d26d488
Action now has 'isAction' which compares the loaded Action with names of classes in an array (added without the 'Action') to its own type.
294 lines
10 KiB
PHP
294 lines
10 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Action for displaying the public stream
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Public
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2008-2009 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('GNUSOCIAL')) { exit(1); }
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// Farther than any human will go
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define('MAX_PUBLIC_PAGE', 100);
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/**
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* Action for displaying the public stream
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*
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* @category Public
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*
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* @see PublicrssAction
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* @see PublicxrdsAction
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*/
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class PublicAction extends Action
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{
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/**
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* page of the stream we're on; default = 1
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*/
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var $page = null;
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var $notice;
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var $userProfile = null;
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function isReadOnly($args)
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{
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return true;
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}
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/**
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* Read and validate arguments
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*
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* @param array $args URL parameters
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*
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* @return boolean success value
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*/
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function prepare($args)
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{
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parent::prepare($args);
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$this->page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
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if ($this->page > MAX_PUBLIC_PAGE) {
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// TRANS: Client error displayed when requesting a public timeline page beyond the page limit.
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// TRANS: %s is the page limit.
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$this->clientError(sprintf(_('Beyond the page limit (%s).'), MAX_PUBLIC_PAGE));
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}
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common_set_returnto($this->selfUrl());
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$this->userProfile = Profile::current();
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$user = common_current_user();
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if (!empty($user) && $user->streamModeOnly()) {
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$stream = new PublicNoticeStream($this->userProfile);
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} else {
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$stream = new ThreadingPublicNoticeStream($this->userProfile);
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}
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$this->notice = $stream->getNotices(($this->page-1)*NOTICES_PER_PAGE,
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NOTICES_PER_PAGE + 1);
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if (!$this->notice) {
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// TRANS: Server error displayed when a public timeline cannot be retrieved.
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$this->serverError(_('Could not retrieve public timeline.'));
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}
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if($this->page > 1 && $this->notice->N == 0){
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// TRANS: Server error when page not found (404).
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$this->serverError(_('No such page.'),$code=404);
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}
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return true;
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}
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/**
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* handle request
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*
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* Show the public stream, using recipe method showPage()
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*
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* @param array $args arguments, mostly unused
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*
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* @return void
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*/
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function handle($args)
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{
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parent::handle($args);
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$this->showPage();
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}
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/**
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* Title of the page
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*
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* @return page title, including page number if over 1
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*/
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function title()
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{
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if ($this->page > 1) {
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// TRANS: Title for all public timeline pages but the first.
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// TRANS: %d is the page number.
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return sprintf(_('Public timeline, page %d'), $this->page);
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} else {
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// TRANS: Title for the first public timeline page.
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return _('Public timeline');
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}
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}
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function extraHead()
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{
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parent::extraHead();
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$this->element('meta', array('http-equiv' => 'X-XRDS-Location',
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'content' => common_local_url('publicxrds')));
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$rsd = common_local_url('rsd');
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// RSD, http://tales.phrasewise.com/rfc/rsd
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$this->element('link', array('rel' => 'EditURI',
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'type' => 'application/rsd+xml',
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'href' => $rsd));
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if ($this->page != 1) {
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$this->element('link', array('rel' => 'canonical',
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'href' => common_local_url('public')));
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}
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}
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/**
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* Output <head> elements for RSS and Atom feeds
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*
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* @return void
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*/
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function getFeeds()
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{
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return array(new Feed(Feed::JSON,
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common_local_url('ApiTimelinePublic',
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array('format' => 'as')),
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// TRANS: Link description for public timeline feed.
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_('Public Timeline Feed (Activity Streams JSON)')),
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new Feed(Feed::RSS1, common_local_url('publicrss'),
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// TRANS: Link description for public timeline feed.
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_('Public Timeline Feed (RSS 1.0)')),
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new Feed(Feed::RSS2,
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common_local_url('ApiTimelinePublic',
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array('format' => 'rss')),
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// TRANS: Link description for public timeline feed.
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_('Public Timeline Feed (RSS 2.0)')),
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new Feed(Feed::ATOM,
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common_local_url('ApiTimelinePublic',
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array('format' => 'atom')),
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// TRANS: Link description for public timeline feed.
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_('Public Timeline Feed (Atom)')));
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}
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function showEmptyList()
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{
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// TRANS: Text displayed for public feed when there are no public notices.
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$message = _('This is the public timeline for %%site.name%% but no one has posted anything yet.') . ' ';
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if (common_logged_in()) {
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// TRANS: Additional text displayed for public feed when there are no public notices for a logged in user.
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$message .= _('Be the first to post!');
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}
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else {
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if (! (common_config('site','closed') || common_config('site','inviteonly'))) {
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// TRANS: Additional text displayed for public feed when there are no public notices for a not logged in user.
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$message .= _('Why not [register an account](%%action.register%%) and be the first to post!');
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}
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}
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$this->elementStart('div', 'guide');
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$this->raw(common_markup_to_html($message));
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$this->elementEnd('div');
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}
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/**
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* Fill the content area
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*
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* Shows a list of the notices in the public stream, with some pagination
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* controls.
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*
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* @return void
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*/
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function showContent()
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{
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$user = common_current_user();
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if (!empty($user) && $user->streamModeOnly()) {
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$nl = new NoticeList($this->notice, $this);
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} else {
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$nl = new ThreadedNoticeList($this->notice, $this, $this->userProfile);
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}
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$cnt = $nl->show();
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if ($cnt == 0) {
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$this->showEmptyList();
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}
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$this->pagination($this->page > 1, $cnt > NOTICES_PER_PAGE,
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$this->page, 'public');
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}
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function showSections()
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{
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// Show invite button, as long as site isn't closed, and
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// we have a logged in user.
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if (common_config('invite', 'enabled') && !common_config('site', 'closed') && common_logged_in()) {
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if (!common_config('site', 'private')) {
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$ibs = new InviteButtonSection(
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$this,
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// TRANS: Button text for inviting more users to the StatusNet instance.
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// TRANS: Less business/enterprise-oriented language for public sites.
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_m('BUTTON', 'Send invite')
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);
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} else {
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$ibs = new InviteButtonSection($this);
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}
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$ibs->show();
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}
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$p = Profile::current();
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if (!common_config('performance', 'high')) {
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$cloud = new PublicTagCloudSection($this);
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$cloud->show();
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}
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$feat = new FeaturedUsersSection($this);
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$feat->show();
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}
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function showAnonymousMessage()
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{
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if (! (common_config('site','closed') || common_config('site','inviteonly'))) {
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// TRANS: Message for not logged in users at an invite-only site trying to view the public feed of notices.
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// TRANS: This message contains Markdown links. Please mind the formatting.
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$m = _('This is %%site.name%%, a [micro-blogging](http://en.wikipedia.org/wiki/Micro-blogging) service ' .
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'based on the Free Software [StatusNet](http://status.net/) tool. ' .
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'[Join now](%%action.register%%) to share notices about yourself with friends, family, and colleagues! ' .
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'([Read more](%%doc.help%%))');
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} else {
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// TRANS: Message for not logged in users at a closed site trying to view the public feed of notices.
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// TRANS: This message contains Markdown links. Please mind the formatting.
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$m = _('This is %%site.name%%, a [micro-blogging](http://en.wikipedia.org/wiki/Micro-blogging) service ' .
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'based on the Free Software [StatusNet](http://status.net/) tool.');
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}
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$this->elementStart('div', array('id' => 'anon_notice'));
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$this->raw(common_markup_to_html($m));
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$this->elementEnd('div');
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}
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}
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class ThreadingPublicNoticeStream extends ThreadingNoticeStream
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{
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function __construct($profile)
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{
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parent::__construct(new PublicNoticeStream($profile));
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}
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}
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