gnu-social/actions/apitimelinehome.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Show the home timeline
*
* 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
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* @author Craig Andrews <candrews@integralblue.com>
* @author Evan Prodromou <evan@status.net>
* @author Jeffery To <jeffery.to@gmail.com>
* @author mac65 <mac65@mac65.com>
* @author Mike Cochrane <mikec@mikenz.geek.nz>
* @author Robin Millette <robin@millette.info>
* @author Zach Copley <zach@status.net>
* @copyright 2009 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);
}
/**
* Returns the most recent notices (default 20) posted by the target user.
* This is the equivalent of 'You and friends' page accessed via Web.
*
* @category API
* @package StatusNet
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* @author Craig Andrews <candrews@integralblue.com>
* @author Evan Prodromou <evan@status.net>
* @author Jeffery To <jeffery.to@gmail.com>
* @author mac65 <mac65@mac65.com>
* @author Mike Cochrane <mikec@mikenz.geek.nz>
* @author Robin Millette <robin@millette.info>
* @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 ApiTimelineHomeAction extends ApiBareAuthAction
{
var $notices = null;
/**
* Take arguments for running
*
* @param array $args $_REQUEST args
*
* @return boolean success flag
*/
protected function prepare($args)
{
parent::prepare($args);
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$this->target = $this->getTargetProfile($this->arg('id'));
if (!($this->target instanceof Profile)) {
// TRANS: Client error displayed when requesting most recent dents by user and friends for a non-existing user.
$this->clientError(_('No such user.'), 404);
}
$this->notices = $this->getNotices();
return true;
}
/**
* Handle the request
*
* Just show the notices
*
* @return void
*/
protected function handle()
{
parent::handle();
$this->showTimeline();
}
/**
* Show the timeline of notices
*
* @return void
*/
function showTimeline()
{
$sitename = common_config('site', 'name');
// TRANS: Timeline title for user and friends. %s is a user nickname.
$title = sprintf(_("%s and friends"), $this->target->nickname);
$taguribase = TagURI::base();
$id = "tag:$taguribase:HomeTimeline:" . $this->target->id;
$subtitle = sprintf(
// TRANS: Message is used as a subtitle. %1$s is a user nickname, %2$s is a site name.
_('Updates from %1$s and friends on %2$s!'),
$this->target->nickname, $sitename
);
$logo = $this->target->avatarUrl(AVATAR_PROFILE_SIZE);
$link = common_local_url('all',
array('nickname' => $this->target->nickname));
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$self = $this->getSelfUri();
switch($this->format) {
case 'xml':
$this->showXmlTimeline($this->notices);
break;
case 'rss':
$this->showRssTimeline(
$this->notices,
$title,
$link,
$subtitle,
null,
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$logo,
$self
);
break;
case 'atom':
header('Content-Type: application/atom+xml; charset=utf-8');
$atom = new AtomNoticeFeed($this->auth_user);
$atom->setId($id);
$atom->setTitle($title);
$atom->setSubtitle($subtitle);
$atom->setLogo($logo);
$atom->setUpdated('now');
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$atom->addLink($link);
$atom->setSelfLink($self);
$atom->addEntryFromNotices($this->notices);
$this->raw($atom->getString());
break;
case 'json':
$this->showJsonTimeline($this->notices);
break;
case 'as':
header('Content-Type: ' . ActivityStreamJSONDocument::CONTENT_TYPE);
$doc = new ActivityStreamJSONDocument($this->auth_user);
$doc->setTitle($title);
$doc->addLink($link, 'alternate', 'text/html');
$doc->addItemsFromNotices($this->notices);
$this->raw($doc->asString());
break;
default:
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// TRANS: Client error displayed when coming across a non-supported API method.
$this->clientError(_('API method not found.'), 404);
}
}
/**
* Get notices
*
* @return array notices
*/
function getNotices()
{
$notices = array();
$stream = new InboxNoticeStream($this->target->getUser(), $this->scoped);
$notice = $stream->getNotices(($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($this->notices[0]->created);
}
return null;
}
/**
* An entity tag for this stream
*
* Returns an Etag based on the action name, language, user ID, and
* timestamps of the first and last notice in the timeline
*
* @return string etag
*/
function etag()
{
if (!empty($this->notices) && (count($this->notices) > 0)) {
$last = count($this->notices) - 1;
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return '"' . implode(
':',
array($this->arg('action'),
common_user_cache_hash($this->auth_user),
common_language(),
$this->target->id,
strtotime($this->notices[0]->created),
strtotime($this->notices[$last]->created))
)
. '"';
}
return null;
}
}