nextcloud/apps/contactsinteraction/lib/Db/CardSearchDao.php

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<?php
declare(strict_types=1);
/**
* @copyright 2020 Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @author 2020 Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @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\ContactsInteraction\Db;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;
use OCP\IUser;
use function is_resource;
use function stream_get_contents;
class CardSearchDao {
/** @var IDBConnection */
private $db;
public function __construct(IDBConnection $db) {
$this->db = $db;
}
public function findExisting(IUser $user,
?string $uid,
?string $email,
?string $cloudId): ?string {
$addressbooksQuery = $this->db->getQueryBuilder();
$cardQuery = $this->db->getQueryBuilder();
$propQuery = $this->db->getQueryBuilder();
$propOr = $propQuery->expr()->orX();
if ($uid !== null) {
$propOr->add($propQuery->expr()->andX(
$propQuery->expr()->eq('name', $cardQuery->createNamedParameter('UID')),
$propQuery->expr()->eq('value', $cardQuery->createNamedParameter($uid))
));
}
if ($email !== null) {
$propOr->add($propQuery->expr()->andX(
$propQuery->expr()->eq('name', $cardQuery->createNamedParameter('EMAIL')),
$propQuery->expr()->eq('value', $cardQuery->createNamedParameter($email))
));
}
if ($cloudId !== null) {
$propOr->add($propQuery->expr()->andX(
$propQuery->expr()->eq('name', $cardQuery->createNamedParameter('CLOUD')),
$propQuery->expr()->eq('value', $cardQuery->createNamedParameter($cloudId))
));
}
$addressbooksQuery->selectDistinct('id')
->from('addressbooks')
->where($addressbooksQuery->expr()->eq('principaluri', $cardQuery->createNamedParameter("principals/users/" . $user->getUID())));
$propQuery->selectDistinct('cardid')
->from('cards_properties')
->where($propQuery->expr()->in('addressbookid', $propQuery->createFunction($addressbooksQuery->getSQL()), IQueryBuilder::PARAM_INT_ARRAY))
->andWhere($propOr)
->groupBy('cardid');
$cardQuery->select('carddata')
->from('cards')
->where($cardQuery->expr()->in('id', $cardQuery->createFunction($propQuery->getSQL()), IQueryBuilder::PARAM_INT_ARRAY))
->andWhere($cardQuery->expr()->in('addressbookid', $cardQuery->createFunction($addressbooksQuery->getSQL()), IQueryBuilder::PARAM_INT_ARRAY))
->setMaxResults(1);
$result = $cardQuery->execute();
/** @var string|resource|false $card */
$card = $result->fetchColumn(0);
if ($card === false) {
return null;
}
if (is_resource($card)) {
return stream_get_contents($card);
}
return $card;
}
}