gnu-social/lib/notices/inboxnoticestream.php
Alexei Sorokin 9226cce151 [NOTICES] Fix InboxNoticeStream caching
Introduce a new property in CachingNoticeStream for always checking if there
are any new elements in the stream.
It would be extremely hard to blow InboxNoticeStream, so instead the database
hit will still occur, but it is be much faster than starting fresh.

This fixes a regression introduced in 36a55d8436
2020-07-06 18:12:50 +03:00

151 lines
4.8 KiB
PHP

<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
/**
* Stream of notices for a profile's "all" feed
*
* @category NoticeStream
* @package GNUsocial
* @author Evan Prodromou <evan@status.net>
* @author Mikael Nordfeldth <mmn@hethane.se>
* @author Alexei Sorokin <sor.alexei@meowr.ru>
* @author Stephane Berube <chimo@chromic.org>
* @copyright 2011 StatusNet, Inc.
* @copyright 2014 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
defined('GNUSOCIAL') || die();
/**
* @category General
* @copyright 2011 StatusNet, Inc.
* @copyright 2014 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class InboxNoticeStream extends ScopingNoticeStream
{
/**
* Constructor
*
* @param Profile $target Profile to get a stream for
* @param Profile $scoped Currently scoped profile (if null, it is fetched)
*/
public function __construct(Profile $target, Profile $scoped = null)
{
parent::__construct(
new CachingNoticeStream(
new RawInboxNoticeStream($target),
'profileall:' . $target->getID(),
false,
true
),
$scoped
);
}
}
/**
* Raw stream of notices for the target's inbox
*
* @category General
* @copyright 2011 StatusNet, Inc.
* @copyright 2014 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class RawInboxNoticeStream extends NoticeStream
{
protected $target = null;
protected $inbox = null;
/**
* Constructor
*
* @param Profile $target Profile to get a stream for
*/
public function __construct(Profile $target)
{
parent::__construct();
$this->target = $target;
}
/**
* Get IDs in a range
*
* @param int $offset Offset from start
* @param int $limit Limit of number to get
* @param int $since_id Since this notice
* @param int $max_id Before this notice
*
* @return array IDs found
*/
public function getNoticeIds($offset, $limit, $since_id = null, $max_id = null)
{
$notice = new Notice();
$notice->selectAdd();
$notice->selectAdd('id');
// Reply:: is a table of mentions
// Subscription:: is a table of subscriptions (every user is subscribed to themselves)
$notice->_join .= "\n" . <<<'END'
LEFT JOIN (
SELECT notice.id, subscription.subscriber AS profile_id
FROM notice INNER JOIN subscription
ON notice.profile_id = subscription.subscribed
UNION ALL
SELECT reply.id, notice.profile_id
FROM notice AS reply INNER JOIN notice ON reply.reply_to = notice.id
UNION ALL
SELECT notice_id, profile_id FROM attention
UNION ALL
SELECT group_inbox.notice_id, group_member.profile_id
FROM group_inbox INNER JOIN group_member USING (group_id)
) AS t1 USING (id)
END;
$notice->whereAdd('t1.id IS NOT NULL');
$notice->whereAdd('t1.profile_id = ' . $this->target->getID());
$notice->whereAdd(sprintf(
"notice.created > TIMESTAMP '%s'",
$notice->escape($this->target->created)
));
if (!empty($since_id)) {
$notice->whereAdd('id > ' . $since_id);
}
if (!empty($max_id)) {
$notice->whereAdd('id <= ' . $max_id);
}
$notice->whereAdd('scope <> ' . Notice::MESSAGE_SCOPE);
self::filterVerbs($notice, $this->selectVerbs);
// notice.id will give us even really old posts, which were recently
// imported. For example if a remote instance had problems and just
// managed to post here.
$notice->orderBy('id DESC');
$notice->limit($offset, $limit);
if (!$notice->find()) {
return [];
}
return $notice->fetchAll('id');
}
}