229 lines
6.6 KiB
PHP
229 lines
6.6 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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* Show the latest notices for a given tag
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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 API
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* @package StatusNet
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* @author Craig Andrews <candrews@integralblue.com>
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* @author Evan Prodromou <evan@status.net>
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* @author Jeffery To <jeffery.to@gmail.com>
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* @author Zach Copley <zach@status.net>
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* @copyright 2009-2010 StatusNet, Inc.
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* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
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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('STATUSNET')) {
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exit(1);
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}
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/**
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* Returns the 20 most recent notices tagged by a given tag
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*
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* @category API
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* @package StatusNet
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* @author Craig Andrews <candrews@integralblue.com>
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* @author Evan Prodromou <evan@status.net>
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* @author Jeffery To <jeffery.to@gmail.com>
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* @author Zach Copley <zach@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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class ApiTimelineTagAction extends ApiPrivateAuthAction
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{
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var $notices = null;
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protected function prepare(array $args=array())
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{
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parent::prepare($args);
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$this->tag = $this->arg('tag');
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$this->notices = $this->getNotices();
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return true;
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}
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/**
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* Handle the request
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*
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* Just show the notices
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*
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* @param array $args $_REQUEST data (unused)
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*
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* @return void
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*/
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protected function handle()
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{
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parent::handle();
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$this->showTimeline();
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}
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/**
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* Show the timeline of notices
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*
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* @return void
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*/
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function showTimeline()
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{
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$sitename = common_config('site', 'name');
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$sitelogo = (common_config('site', 'logo')) ? common_config('site', 'logo') : Theme::path('logo.png');
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// TRANS: Title for timeline with lastest notices with a given tag.
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// TRANS: %s is the tag.
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$title = sprintf(_("Notices tagged with %s"), $this->tag);
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$subtitle = sprintf(
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// TRANS: Subtitle for timeline with lastest notices with a given tag.
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// TRANS: %1$s is the tag, $2$s is the StatusNet sitename.
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_('Updates tagged with %1$s on %2$s!'),
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$this->tag,
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$sitename
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);
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$taguribase = TagURI::base();
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$id = "tag:$taguribase:TagTimeline:".$this->tag;
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$link = common_local_url(
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'tag',
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array('tag' => $this->tag)
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);
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$self = $this->getSelfUri();
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switch($this->format) {
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case 'xml':
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$this->showXmlTimeline($this->notices);
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break;
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case 'rss':
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$this->showRssTimeline(
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$this->notices,
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$title,
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$link,
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$subtitle,
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null,
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$sitelogo,
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$self
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);
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break;
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case 'atom':
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header('Content-Type: application/atom+xml; charset=utf-8');
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$atom = new AtomNoticeFeed($this->auth_user);
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$atom->setId($id);
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$atom->setTitle($title);
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$atom->setSubtitle($subtitle);
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$atom->setLogo($sitelogo);
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$atom->setUpdated('now');
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$atom->addLink($link);
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$atom->setSelfLink($self);
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$atom->addEntryFromNotices($this->notices);
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$this->raw($atom->getString());
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break;
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case 'json':
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$this->showJsonTimeline($this->notices);
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break;
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case 'as':
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header('Content-Type: ' . ActivityStreamJSONDocument::CONTENT_TYPE);
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$doc = new ActivityStreamJSONDocument($this->auth_user);
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$doc->setTitle($title);
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$doc->addLink($link, 'alternate', 'text/html');
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$doc->addItemsFromNotices($this->notices);
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$this->raw($doc->asString());
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break;
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default:
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// TRANS: Client error displayed when coming across a non-supported API method.
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$this->clientError(_('API method not found.'), $code = 404);
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break;
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}
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}
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/**
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* Get notices
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*
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* @return array notices
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*/
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function getNotices()
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{
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$notice = Notice_tag::getStream($this->tag)->getNotices(($this->page - 1) * $this->count,
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$this->count + 1,
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$this->since_id,
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$this->max_id);
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return $notice->fetchAll();
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}
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/**
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* Is this action read only?
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*
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* @param array $args other arguments
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*
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* @return boolean true
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*/
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function isReadOnly($args)
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{
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return true;
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}
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/**
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* When was this feed last modified?
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*
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* @return string datestamp of the latest notice in the stream
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*/
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function lastModified()
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{
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if (!empty($this->notices) && (count($this->notices) > 0)) {
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return strtotime($this->notices[0]->created);
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}
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return null;
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}
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/**
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* An entity tag for this stream
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*
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* Returns an Etag based on the action name, language, and
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* timestamps of the first and last notice in the timeline
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*
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* @return string etag
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*/
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function etag()
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{
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if (!empty($this->notices) && (count($this->notices) > 0)) {
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$last = count($this->notices) - 1;
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return '"' . implode(
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':',
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array($this->arg('action'),
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common_user_cache_hash($this->auth_user),
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common_language(),
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$this->tag,
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strtotime($this->notices[0]->created),
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strtotime($this->notices[$last]->created))
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)
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. '"';
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}
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return null;
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}
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}
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