gnu-social/lib/atomnoticefeed.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Class for building an Atom feed from a collection of 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 Feed
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
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if (!defined('STATUSNET'))
{
exit(1);
}
/**
* Class for creating a feed that represents a collection of notices. Builds the
* feed in memory. Get the feed as a string with AtomNoticeFeed::getString().
*
* @category Feed
* @package StatusNet
* @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/
*/
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class AtomNoticeFeed extends Atom10Feed
{
var $cur;
protected $scoped=null;
/**
* Constructor - adds a bunch of XML namespaces we need in our
* notice-specific Atom feeds, and allows setting the current
* authenticated user (useful for API methods).
*
* @param User $cur the current authenticated user (optional)
* @param boolean $indent Whether to indent XML output
*
*/
function __construct($cur = null, $indent = true) {
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parent::__construct($indent);
$this->cur = $cur ?: common_current_user();
$this->scoped = !is_null($this->cur) ? $this->cur->getProfile() : null;
// Feeds containing notice info use these namespaces
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$this->addNamespace(
'thr',
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'http://purl.org/syndication/thread/1.0'
);
$this->addNamespace(
'georss',
'http://www.georss.org/georss'
);
$this->addNamespace(
'activity',
'http://activitystrea.ms/spec/1.0/'
);
$this->addNamespace(
'media',
'http://purl.org/syndication/atommedia'
);
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$this->addNamespace(
'poco',
'http://portablecontacts.net/spec/1.0'
);
// XXX: What should the uri be?
$this->addNamespace(
'ostatus',
'http://ostatus.org/schema/1.0'
);
$this->addNamespace(
'statusnet',
'http://status.net/schema/api/1/'
);
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}
/**
* Add more than one Notice to the feed
*
* @param mixed $notices an array of Notice objects or handle
*
*/
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function addEntryFromNotices($notices)
{
if (is_array($notices)) {
foreach ($notices as $notice) {
$this->addEntryFromNotice($notice);
}
} elseif ($notices instanceof Notice) {
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while ($notices->fetch()) {
$this->addEntryFromNotice($notices);
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}
} else {
throw new ServerException('addEntryFromNotices got neither an array nor a Notice object');
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}
}
/**
* Add a single Notice to the feed
*
* @param Notice $notice a Notice to add
*/
function addEntryFromNotice(Notice $notice)
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{
try {
$source = $this->showSource();
$author = $this->showAuthor();
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$this->addEntryRaw($notice->asAtomEntry(false, $source, $author, $this->scoped));
} catch (Exception $e) {
common_log(LOG_ERR, $e->getMessage());
// we continue on exceptions
}
}
function showSource()
{
return true;
}
function showAuthor()
{
return true;
}
}