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90 lines
2.7 KiB
PHP
90 lines
2.7 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OCA\Files_External\Migration;
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use Closure;
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use OC\Files\Cache\Storage;
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use OCP\DB\Exception;
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use OCP\DB\IResult;
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use OCP\DB\ISchemaWrapper;
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use OCP\IDBConnection;
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use OCP\Migration\IOutput;
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use OCP\Migration\SimpleMigrationStep;
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use Psr\Log\LoggerInterface;
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class Version1015Date20211104103506 extends SimpleMigrationStep {
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public function __construct(
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private IDBConnection $connection,
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private LoggerInterface $logger,
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) {
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}
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public function postSchemaChange(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
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$qb = $this->connection->getQueryBuilder();
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$qb->update('storages')
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->set('id', $qb->createParameter('newId'))
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->where($qb->expr()->eq('id', $qb->createParameter('oldId')));
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$mounts = $this->getS3Mounts();
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if (!$mounts instanceof IResult) {
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throw new \Exception('Could not fetch existing mounts for migration');
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}
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while ($mount = $mounts->fetch()) {
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$config = $this->getStorageConfig((int)$mount['mount_id']);
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$hostname = $config['hostname'];
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$bucket = $config['bucket'];
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$key = $config['key'];
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$oldId = Storage::adjustStorageId('amazon::' . $bucket);
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$newId = Storage::adjustStorageId('amazon::external::' . md5($hostname . ':' . $bucket . ':' . $key));
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try {
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$qb->setParameter('oldId', $oldId);
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$qb->setParameter('newId', $newId);
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$qb->execute();
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$this->logger->info('Migrated s3 storage id for mount with id ' . $mount['mount_id'] . ' to ' . $newId);
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} catch (Exception $e) {
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$this->logger->error('Failed to migrate external s3 storage id for mount with id ' . $mount['mount_id'], [
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'exception' => $e
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]);
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}
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}
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return null;
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}
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/**
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* @throws Exception
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* @return IResult|int
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*/
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private function getS3Mounts() {
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$qb = $this->connection->getQueryBuilder();
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$qb->select('m.mount_id')
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->selectAlias('c.value', 'bucket')
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->from('external_mounts', 'm')
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->innerJoin('m', 'external_config', 'c', 'c.mount_id = m.mount_id')
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->where($qb->expr()->eq('m.storage_backend', $qb->createPositionalParameter('amazons3')))
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->andWhere($qb->expr()->eq('c.key', $qb->createPositionalParameter('bucket')));
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return $qb->execute();
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}
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/**
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* @throws Exception
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*/
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private function getStorageConfig(int $mountId): array {
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$qb = $this->connection->getQueryBuilder();
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$qb->select('key', 'value')
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->from('external_config')
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->where($qb->expr()->eq('mount_id', $qb->createPositionalParameter($mountId)));
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$config = [];
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foreach ($qb->execute()->fetchAll() as $row) {
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$config[$row['key']] = $row['value'];
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}
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return $config;
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}
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}
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