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<?php
declare(strict_types=1);
/**
* Nextcloud - Social Support
*
* This file is licensed under the Affero General Public License version 3 or
* later. See the COPYING file.
*
* @author Maxence Lange <maxence@artificial-owl.com>
* @copyright 2018, Maxence Lange <maxence@artificial-owl.com>
* @license GNU AGPL version 3 or any later version
*
* 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/>.
*
*/
namespace OCA\Social\Db;
use OCA\Social\AP;
use OCA\Social\Exceptions\InvalidResourceException;
use OCA\Social\Exceptions\ItemUnknownException;
use OCA\Social\Exceptions\SocialAppConfigException;
use OCA\Social\Exceptions\StreamNotFoundException;
use OCA\Social\Model\ActivityPub\Object\Announce;
use OCA\Social\Model\ActivityPub\Stream;
use OCA\Social\Model\InstancePath;
use OCA\Social\Tools\Exceptions\CacheItemNotFoundException;
use OCA\Social\Tools\Exceptions\RowNotFoundException;
use OCA\Social\Tools\Traits\TArrayTools;
/**
* Class StreamRequestBuilder
*
* @package OCA\Social\Db
*/
class StreamRequestBuilder extends CoreRequestBuilder {
use TArrayTools;
/**
* Base of the Sql Insert request
*
* @return SocialQueryBuilder
*/
protected function getStreamInsertSql(): SocialQueryBuilder {
$qb = $this->getQueryBuilder();
$qb->insert(self::TABLE_STREAM);
return $qb;
}
/**
* Base of the Sql Update request
*
* @return SocialQueryBuilder
*/
protected function getStreamUpdateSql(): SocialQueryBuilder {
$qb = $this->getQueryBuilder();
$qb->update(self::TABLE_STREAM);
return $qb;
}
/**
* Base of the Sql Select request for Shares
*
* @param int $format
*
* @return SocialQueryBuilder
*/
protected function getStreamSelectSql(int $format = Stream::FORMAT_ACTIVITYPUB): SocialQueryBuilder {
$qb = $this->getQueryBuilder();
$qb->setFormat($format);
$qb->selectDistinct('s.id')
->from(self::TABLE_STREAM, 's');
foreach (self::$tables[self::TABLE_STREAM] as $field) {
if ($field === 'id') {
continue;
}
$qb->addSelect('s.' . $field);
}
$qb->setDefaultSelectAlias('s');
return $qb;
}
/**
* Base of the Sql Select request for Shares
*
* @return SocialQueryBuilder
*/
protected function countNotesSelectSql(): SocialQueryBuilder {
$qb = $this->getQueryBuilder();
$qb->selectAlias($qb->createFunction('COUNT(*)'), 'count')
->from(self::TABLE_STREAM, 's');
$qb->setDefaultSelectAlias('s');
return $qb;
}
/**
* Base of the Sql Delete request
*
* @return SocialQueryBuilder
*/
protected function getStreamDeleteSql(): SocialQueryBuilder {
$qb = $this->getQueryBuilder();
$qb->delete(self::TABLE_STREAM);
return $qb;
}
/**
* @param SocialQueryBuilder $qb
* @param string $alias
* @param string $aliasFollow
*/
protected function timelineHomeLinkCacheActor(
SocialQueryBuilder $qb, string $alias = 'ca', string $aliasFollow = 'f'
) {
$qb->linkToCacheActors($alias, 'attributed_to_prim');
$expr = $qb->expr();
$orX = $expr->orX();
$follow = $expr->andX();
$follow->add($expr->eq($aliasFollow . '.type', $qb->createNamedParameter('Follow')));
// might be overkill to check object_id and also seems to filter boosted message
// $follow->add($expr->eq($alias . '.id_prim', $aliasFollow . '.object_id_prim'));
$orX->add($follow);
$loopback = $expr->andX();
$loopback->add($expr->eq($aliasFollow . '.type', $qb->createNamedParameter('Loopback')));
$loopback->add($expr->eq($alias . '.id_prim', $qb->getDefaultSelectAlias() . '.attributed_to_prim'));
$orX->add($loopback);
$qb->andWhere($orX);
}
/**
* @param SocialQueryBuilder $qb
*
* @return Stream
* @throws StreamNotFoundException
*/
protected function getStreamFromRequest(SocialQueryBuilder $qb): Stream {
/** @var Stream $result */
try {
$result = $qb->getRow([$this, 'parseStreamSelectSql']);
} catch (RowNotFoundException $e) {
throw new StreamNotFoundException('stream not found');
}
return $result;
}
/**
* @param SocialQueryBuilder $qb
*
* @return Stream[]
*/
public function getStreamsFromRequest(SocialQueryBuilder $qb): array {
/** @var Stream[] $result */
$result = $qb->getRows([$this, 'parseStreamSelectSql']);
return $result;
}
/**
* @param array $data
* @param SocialQueryBuilder $qb
*
* @return Stream
* @throws ItemUnknownException
* @throws SocialAppConfigException
*/
public function parseStreamSelectSql(array $data, SocialQueryBuilder $qb): Stream {
$as = $this->get('type', $data, Stream::TYPE);
/** @var Stream $item */
$item = AP::$activityPub->getItemFromType($as);
$item->importFromDatabase($data);
$item->setExportFormat($qb->getFormat());
$instances = json_decode($this->get('instances', $data, '[]'), true);
if (is_array($instances)) {
foreach ($instances as $instance) {
$instancePath = new InstancePath();
$instancePath->import($instance);
$item->addInstancePath($instancePath);
}
}
try {
$actor = $qb->parseLeftJoinCacheActors($data, 'cacheactor_');
$actor->setExportFormat($qb->getFormat());
$item->setCompleteDetails(true);
$item->setActor($actor);
} catch (InvalidResourceException $e) {
}
try {
$object = $qb->parseLeftJoinStream($data, 'objectstream_');
$item->setObject($object);
} catch (InvalidResourceException $e) {
}
$action = $this->parseStreamActionsLeftJoin($data);
if ($item->hasCache()) {
$cache = $item->getCache();
try {
$cachedItem = $cache->getItem($action->getStreamId());
$cachedObject = $cachedItem->getObject();
$cachedObject['action'] = $action;
$cachedItem->setContent(json_encode($cachedObject));
$cache->updateItem($cachedItem, false);
} catch (CacheItemNotFoundException $e) {
}
}
$item->setAction($action);
if ($item->getType() === Announce::TYPE) {
$item->setAttributedTo($this->get('following_actor_id', $data, ''));
}
return $item;
}
}
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