gnu-social/lib/inboxnoticestream.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
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* Stream of notices for a profile's "all" feed
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*
* 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/>.
*
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* @category NoticeStream
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
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* @author Mikael Nordfeldth <mmn@hethane.se>
* @author Alexei Sorokin <sor.alexei@meowr.ru>
* @copyright 2011 StatusNet, Inc.
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* @copyright 2014 Free Software Foundation, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('GNUSOCIAL')) {
exit(1);
}
/**
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* Stream of notices for a profile's "all" feed
*
* @category General
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
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* @author Mikael Nordfeldth <mmn@hethane.se>
* @author Alexei Sorokin <sor.alexei@meowr.ru>
* @copyright 2011 StatusNet, Inc.
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* @copyright 2014 Free Software Foundation, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class InboxNoticeStream extends ScopingNoticeStream
{
/**
* Constructor
*
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* @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 $scoped = null)
{
// FIXME: we don't use CachingNoticeStream - but maybe we should?
parent::__construct(new CachingNoticeStream(new RawInboxNoticeStream($target), 'profileall'), $scoped);
}
}
/**
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* Raw stream of notices for the target's inbox
*
* @category General
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Mikael Nordfeldth <mmn@hethane.se>
* @author Alexei Sorokin <sor.alexei@meowr.ru>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
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class RawInboxNoticeStream extends FullNoticeStream
{
protected $target = null;
protected $inbox = null;
/**
* Constructor
*
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* @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_ids = [];
// Grab all the profiles target is subscribed to (every user is subscribed to themselves)
$subscription = new Subscription();
$subscription->selectAdd();
$subscription->selectAdd('subscribed');
$subscription->whereAdd(sprintf('subscriber = %1$d', $this->target->id));
$subscription_profile_ids = $subscription->fetchAll('subscribed');
// Grab all the notices were target was mentioned
$reply = new Reply();
$reply->selectAdd();
$reply->selectAdd('notice_id');
$reply->whereAdd(sprintf('profile_id = %1$d', $this->target->id));
$notice_ids += $reply->fetchAll('notice_id');
// Grab all the notices that require target's attention
$attention = new Attention();
$attention->selectAdd();
$attention->selectAdd('notice_id');
$attention->whereAdd(sprintf('profile_id = %1$d', $this->target->id));
$notice_ids += $attention->fetchAll('notice_id');
// Grab all the notices posted on groups target is a member of
$group_inbox = new Group_inbox();
$group_inbox->selectAdd();
$group_inbox->selectAdd('notice_id');
$group_inbox->whereAdd(
sprintf(
'group_id IN (SELECT group_id FROM group_member WHERE profile_id = %1$d)',
$this->target->id
)
);
$notice_ids += $group_inbox->fetchAll('notice_id');
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// This is just to make the query lighter when processed by the Database server
$notice_ids = array_filter($notice_ids, function ($id) {
// Keep id (a.k.a.: return true) if:
// - id higher than since id (just constrain if specified)
// - id lower than max id (just constrain if specified)
return (empty($since_id) || $id > $since_id) && (empty($max_id) || $id <= $max_id);
});
$query_ids = '';
if (!empty($notice_ids)) { // Replies, Attentions and Groups
$query_ids .= 'notice.id IN (' . implode(', ', $notice_ids) . ') OR ';
}
// every user is at least subscribed to themselves
$query_ids .= 'notice.profile_id IN (' . implode(', ', $subscription_profile_ids) . ')';
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$notice = new Notice();
$notice->selectAdd();
$notice->selectAdd('id');
$notice->whereAdd(sprintf('notice.created > "%s"', $notice->escape($this->target->created)));
$notice->whereAdd($query_ids);
if (!empty($since_id)) {
$notice->whereAdd(sprintf('notice.id > %d', $since_id));
}
if (!empty($max_id)) {
$notice->whereAdd(sprintf('notice.id <= %d', $max_id));
}
self::filterVerbs($notice, $this->selectVerbs);
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$notice->limit($offset, $limit);
// 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. Another solution
// would be to have a 'notice.imported' field and order by it.
$notice->orderBy('notice.id DESC');
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if (!$notice->find()) {
return [];
}
return $notice->fetchAll('id');
}
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}