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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Show a group's notices
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category API
* @package StatusNet
* @author Craig Andrews <candrews@integralblue.com>
* @author Evan Prodromou <evan@status.net>
* @author Jeffery To <jeffery.to@gmail.com>
* @author Zach Copley <zach@status.net>
* @copyright 2009-2010 StatusNet, Inc.
* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
require_once INSTALLDIR . '/lib/apiprivateauth.php';
/**
* Returns the most recent notices (default 20) posted to the group specified by ID
*
* @category API
* @package StatusNet
* @author Craig Andrews <candrews@integralblue.com>
* @author Evan Prodromou <evan@status.net>
* @author Jeffery To <jeffery.to@gmail.com>
* @author Zach Copley <zach@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class ApiTimelineGroupAction extends ApiPrivateAuthAction
{
var $group = null;
var $notices = null;
/**
* Take arguments for running
*
* @param array $args $_REQUEST args
*
* @return boolean success flag
*
*/
function prepare($args)
{
parent::prepare($args);
$this->group = $this->getTargetGroup($this->arg('id'));
return true;
}
/**
* Handle the request
*
* Just show the notices
*
* @param array $args $_REQUEST data (unused)
*
* @return void
*/
function handle($args)
{
parent::handle($args);
if (empty($this->group)) {
// TRANS: Client error displayed requesting most recent notices to a group for a non-existing group.
$this->clientError(_('Group not found.'), 404, $this->format);
return false;
}
$this->notices = $this->getNotices();
$this->showTimeline();
}
/**
* Show the timeline of notices
*
* @return void
*/
function showTimeline()
{
// We'll pull common formatting out of this for other formats
$atom = new AtomGroupNoticeFeed($this->group, $this->auth_user);
$self = $this->getSelfUri();
switch($this->format) {
case 'xml':
$this->showXmlTimeline($this->notices);
break;
case 'rss':
$this->showRssTimeline(
$this->notices,
$atom->title,
$this->group->homeUrl(),
$atom->subtitle,
null,
$atom->logo,
$self
);
break;
case 'atom':
header('Content-Type: application/atom+xml; charset=utf-8');
try {
$atom->addAuthorRaw($this->group->asAtomAuthor());
$atom->setActivitySubject($this->group->asActivitySubject());
$atom->setId($self);
$atom->setSelfLink($self);
$atom->addEntryFromNotices($this->notices);
$this->raw($atom->getString());
} catch (Atom10FeedException $e) {
$this->serverError(
// TRANS: Server error displayed when generating an Atom feed fails.
// TRANS: %s is the error.
sprintf(_('Could not generate feed for group - %s'),$e->getMessage()),
400,
$this->format
);
return;
}
break;
case 'json':
$this->showJsonTimeline($this->notices);
break;
default:
$this->clientError(
// TRANS: Client error displayed when trying to handle an unknown API method.
_('API method not found.'),
404,
$this->format
);
break;
}
}
/**
* Get notices
*
* @return array notices
*/
function getNotices()
{
$notices = array();
$notice = $this->group->getNotices(
($this->page-1) * $this->count,
$this->count,
$this->since_id,
$this->max_id
);
while ($notice->fetch()) {
$notices[] = clone($notice);
}
return $notices;
}
/**
* Is this action read only?
*
* @param array $args other arguments
*
* @return boolean true
*/
function isReadOnly($args)
{
return true;
}
/**
* When was this feed last modified?
*
* @return string datestamp of the latest notice in the stream
*/
function lastModified()
{
if (!empty($this->notices) && (count($this->notices) > 0)) {
return strtotime($this->notices[0]->created);
}
return null;
}
/**
* An entity tag for this stream
*
* Returns an Etag based on the action name, language, group ID and
* timestamps of the first and last notice in the timeline
*
* @return string etag
*/
function etag()
{
if (!empty($this->notices) && (count($this->notices) > 0)) {
$last = count($this->notices) - 1;
return '"' . implode(
':',
array($this->arg('action'),
common_user_cache_hash($this->auth_user),
common_language(),
$this->group->id,
strtotime($this->notices[0]->created),
strtotime($this->notices[$last]->created))
)
. '"';
}
return null;
}
}
|
