migrate therinaldos.com data

wedding-pics/lib/private/Repair/AddBruteForceCleanupJob.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2020, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @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 OC\Repair;
+
+use OC\Security\Bruteforce\CleanupJob;
+use OCP\BackgroundJob\IJobList;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class AddBruteForceCleanupJob implements IRepairStep {
+	/** @var IJobList */
+	protected $jobList;
+
+	public function __construct(IJobList $jobList) {
+		$this->jobList = $jobList;
+	}
+
+	public function getName() {
+		return 'Add job to cleanup the bruteforce entries';
+	}
+
+	public function run(IOutput $output) {
+		$this->jobList->add(CleanupJob::class);
+	}
+}

wedding-pics/lib/private/Repair/AddCleanupUpdaterBackupsJob.php

@@ -0,0 +1,45 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 Morris Jobke <hey@morrisjobke.de>
+ *
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 OC\Repair;
+
+use OC\Core\BackgroundJobs\BackgroundCleanupUpdaterBackupsJob;
+use OCP\BackgroundJob\IJobList;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class AddCleanupUpdaterBackupsJob implements IRepairStep {
+	/** @var IJobList */
+	protected $jobList;
+
+	public function __construct(IJobList $jobList) {
+		$this->jobList = $jobList;
+	}
+
+	public function getName() {
+		return 'Queue a one-time job to cleanup old backups of the updater';
+	}
+
+	public function run(IOutput $output) {
+		$this->jobList->add(BackgroundCleanupUpdaterBackupsJob::class);
+	}
+}

wedding-pics/lib/private/Repair/AddMetadataGenerationJob.php

@@ -0,0 +1,43 @@
+<?php
+/**
+ * @copyright Copyright (c) 2023 Louis Chmn <louis@chmn.me>
+ *
+ * @author Louis Chmn <louis@chmn.me>
+ *
+ * @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 OC\Repair;
+
+use OC\Core\BackgroundJobs\GenerateMetadataJob;
+use OCP\BackgroundJob\IJobList;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class AddMetadataGenerationJob implements IRepairStep {
+	public function __construct(
+		private IJobList $jobList,
+	) {
+	}
+
+	public function getName() {
+		return 'Queue a job to generate metadata';
+	}
+
+	public function run(IOutput $output) {
+		$this->jobList->add(GenerateMetadataJob::class);
+	}
+}

wedding-pics/lib/private/Repair/AddRemoveOldTasksBackgroundJob.php

@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @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 OC\Repair;
+
+use OC\TextProcessing\RemoveOldTasksBackgroundJob as RemoveOldTextProcessingTasksBackgroundJob;
+use OC\TextToImage\RemoveOldTasksBackgroundJob as RemoveOldTextToImageTasksBackgroundJob;
+use OCP\BackgroundJob\IJobList;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class AddRemoveOldTasksBackgroundJob implements IRepairStep {
+	private IJobList $jobList;
+
+	public function __construct(IJobList $jobList) {
+		$this->jobList = $jobList;
+	}
+
+	public function getName(): string {
+		return 'Add AI tasks cleanup job';
+	}
+
+	public function run(IOutput $output) {
+		$this->jobList->add(RemoveOldTextProcessingTasksBackgroundJob::class);
+		$this->jobList->add(RemoveOldTextToImageTasksBackgroundJob::class);
+	}
+}

wedding-pics/lib/private/Repair/CleanTags.php

@@ -0,0 +1,208 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ *
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Robin Appelman <robin@icewind.nl>
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair;
+
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IDBConnection;
+use OCP\IUserManager;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+/**
+ * Class RepairConfig
+ *
+ * @package OC\Repair
+ */
+class CleanTags implements IRepairStep {
+	/** @var IDBConnection */
+	protected $connection;
+
+	/** @var IUserManager */
+	protected $userManager;
+
+	protected $deletedTags = 0;
+
+	/**
+	 * @param IDBConnection $connection
+	 * @param IUserManager $userManager
+	 */
+	public function __construct(IDBConnection $connection, IUserManager $userManager) {
+		$this->connection = $connection;
+		$this->userManager = $userManager;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getName() {
+		return 'Clean tags and favorites';
+	}
+
+	/**
+	 * Updates the configuration after running an update
+	 */
+	public function run(IOutput $output) {
+		$this->deleteOrphanTags($output);
+		$this->deleteOrphanFileEntries($output);
+		$this->deleteOrphanTagEntries($output);
+		$this->deleteOrphanCategoryEntries($output);
+	}
+
+	/**
+	 * Delete tags for deleted users
+	 */
+	protected function deleteOrphanTags(IOutput $output) {
+		$offset = 0;
+		while ($this->checkTags($offset)) {
+			$offset += 50;
+		}
+
+		$output->info(sprintf('%d tags of deleted users have been removed.', $this->deletedTags));
+	}
+
+	protected function checkTags($offset) {
+		$query = $this->connection->getQueryBuilder();
+		$query->select('uid')
+			->from('vcategory')
+			->groupBy('uid')
+			->orderBy('uid')
+			->setMaxResults(50)
+			->setFirstResult($offset);
+		$result = $query->execute();
+
+		$users = [];
+		$hadResults = false;
+		while ($row = $result->fetch()) {
+			$hadResults = true;
+			if (!$this->userManager->userExists($row['uid'])) {
+				$users[] = $row['uid'];
+			}
+		}
+		$result->closeCursor();
+
+		if (!$hadResults) {
+			// No more tags, stop looping
+			return false;
+		}
+
+		if (!empty($users)) {
+			$query = $this->connection->getQueryBuilder();
+			$query->delete('vcategory')
+				->where($query->expr()->in('uid', $query->createNamedParameter($users, IQueryBuilder::PARAM_STR_ARRAY)));
+			$this->deletedTags += $query->execute();
+		}
+		return true;
+	}
+
+	/**
+	 * Delete tag entries for deleted files
+	 */
+	protected function deleteOrphanFileEntries(IOutput $output) {
+		$this->deleteOrphanEntries(
+			$output,
+			'%d tags for delete files have been removed.',
+			'vcategory_to_object', 'objid',
+			'filecache', 'fileid', 'path_hash'
+		);
+	}
+
+	/**
+	 * Delete tag entries for deleted tags
+	 */
+	protected function deleteOrphanTagEntries(IOutput $output) {
+		$this->deleteOrphanEntries(
+			$output,
+			'%d tag entries for deleted tags have been removed.',
+			'vcategory_to_object', 'categoryid',
+			'vcategory', 'id', 'uid'
+		);
+	}
+
+	/**
+	 * Delete tags that have no entries
+	 */
+	protected function deleteOrphanCategoryEntries(IOutput $output) {
+		$this->deleteOrphanEntries(
+			$output,
+			'%d tags with no entries have been removed.',
+			'vcategory', 'id',
+			'vcategory_to_object', 'categoryid', 'type'
+		);
+	}
+
+	/**
+	 * Deletes all entries from $deleteTable that do not have a matching entry in $sourceTable
+	 *
+	 * A query joins $deleteTable.$deleteId = $sourceTable.$sourceId and checks
+	 * whether $sourceNullColumn is null. If it is null, the entry in $deleteTable
+	 * is being deleted.
+	 *
+	 * @param string $repairInfo
+	 * @param string $deleteTable
+	 * @param string $deleteId
+	 * @param string $sourceTable
+	 * @param string $sourceId
+	 * @param string $sourceNullColumn	If this column is null in the source table,
+	 * 								the entry is deleted in the $deleteTable
+	 */
+	protected function deleteOrphanEntries(IOutput $output, $repairInfo, $deleteTable, $deleteId, $sourceTable, $sourceId, $sourceNullColumn) {
+		$qb = $this->connection->getQueryBuilder();
+
+		$qb->select('d.' . $deleteId)
+			->from($deleteTable, 'd')
+			->leftJoin('d', $sourceTable, 's', $qb->expr()->eq('d.' . $deleteId, 's.' . $sourceId))
+			->where(
+				$qb->expr()->eq('d.type', $qb->expr()->literal('files'))
+			)
+			->andWhere(
+				$qb->expr()->isNull('s.' . $sourceNullColumn)
+			);
+		$result = $qb->execute();
+
+		$orphanItems = [];
+		while ($row = $result->fetch()) {
+			$orphanItems[] = (int) $row[$deleteId];
+		}
+
+		if (!empty($orphanItems)) {
+			$orphanItemsBatch = array_chunk($orphanItems, 200);
+			foreach ($orphanItemsBatch as $items) {
+				$qb->delete($deleteTable)
+					->where(
+						$qb->expr()->eq('type', $qb->expr()->literal('files'))
+					)
+					->andWhere($qb->expr()->in($deleteId, $qb->createParameter('ids')));
+				$qb->setParameter('ids', $items, IQueryBuilder::PARAM_INT_ARRAY);
+				$qb->execute();
+			}
+		}
+
+		if ($repairInfo) {
+			$output->info(sprintf($repairInfo, count($orphanItems)));
+		}
+	}
+}

wedding-pics/lib/private/Repair/CleanUpAbandonedApps.php

@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2022 Arthur Schiwon <blizzz@arthur-schiwon.de>
+ *
+ * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
+ *
+ * @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 <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Repair;
+
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class CleanUpAbandonedApps implements IRepairStep {
+	protected const ABANDONED_APPS = ['accessibility', 'files_videoplayer'];
+	private IConfig $config;
+
+	public function __construct(IConfig $config) {
+		$this->config = $config;
+	}
+
+	public function getName(): string {
+		return 'Clean up abandoned apps';
+	}
+
+	public function run(IOutput $output): void {
+		foreach (self::ABANDONED_APPS as $app) {
+			// only remove global app values
+			// user prefs of accessibility are dealt with in Theming migration
+			// videoplayer did not have user prefs
+			$this->config->deleteAppValues($app);
+		}
+	}
+}

wedding-pics/lib/private/Repair/ClearFrontendCaches.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 Julius Härtl <jus@bitgrid.net>
+ *
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Julius Härtl <jus@bitgrid.net>
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @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 OC\Repair;
+
+use OC\Template\JSCombiner;
+use OCP\ICacheFactory;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class ClearFrontendCaches implements IRepairStep {
+	/** @var ICacheFactory */
+	protected $cacheFactory;
+
+	/** @var JSCombiner */
+	protected $jsCombiner;
+
+	public function __construct(ICacheFactory $cacheFactory,
+		JSCombiner $JSCombiner) {
+		$this->cacheFactory = $cacheFactory;
+		$this->jsCombiner = $JSCombiner;
+	}
+
+	public function getName() {
+		return 'Clear frontend caches';
+	}
+
+	public function run(IOutput $output) {
+		try {
+			$c = $this->cacheFactory->createDistributed('imagePath');
+			$c->clear();
+			$output->info('Image cache cleared');
+
+			$this->jsCombiner->resetCache();
+			$output->info('JS cache cleared');
+		} catch (\Exception $e) {
+			$output->warning('Unable to clear the frontend cache');
+		}
+	}
+}

wedding-pics/lib/private/Repair/ClearGeneratedAvatarCache.php

@@ -0,0 +1,69 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 John Molakvoæ <skjnldsv@protonmail.com>
+ *
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author John Molakvoæ <skjnldsv@protonmail.com>
+ * @author Michael Weimann <mail@michael-weimann.eu>
+ *
+ * @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 OC\Repair;
+
+use OC\Avatar\AvatarManager;
+use OCP\BackgroundJob\IJobList;
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class ClearGeneratedAvatarCache implements IRepairStep {
+	protected AvatarManager $avatarManager;
+	private IConfig $config;
+	private IJobList $jobList;
+
+	public function __construct(IConfig $config, AvatarManager $avatarManager, IJobList $jobList) {
+		$this->config = $config;
+		$this->avatarManager = $avatarManager;
+		$this->jobList = $jobList;
+	}
+
+	public function getName(): string {
+		return 'Clear every generated avatar';
+	}
+
+	/**
+	 * Check if this repair step should run
+	 */
+	private function shouldRun(): bool {
+		$versionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0.0');
+
+		// This job only runs if the server was on a version lower than or equal to 27.0.0 before the upgrade.
+		// To clear the avatar cache again, bump the version to the currently released version (and change the operator to <= if it's not the master branch) and wait for the next release.
+		return version_compare($versionFromBeforeUpdate, '27.0.0', '<');
+	}
+
+	public function run(IOutput $output): void {
+		if ($this->shouldRun()) {
+			try {
+				$this->jobList->add(ClearGeneratedAvatarCacheJob::class, []);
+				$output->info('Avatar cache clearing job added');
+			} catch (\Exception $e) {
+				$output->warning('Unable to clear the avatar cache');
+			}
+		}
+	}
+}

wedding-pics/lib/private/Repair/ClearGeneratedAvatarCacheJob.php

@@ -0,0 +1,38 @@
+<?php
+/**
+ * @copyright 2022 Carl Schwan <carl@carlschwan.eu>
+ *
+ * @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 OC\Repair;
+
+use OC\Avatar\AvatarManager;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\BackgroundJob\QueuedJob;
+
+class ClearGeneratedAvatarCacheJob extends QueuedJob {
+	protected AvatarManager $avatarManager;
+
+	public function __construct(ITimeFactory $timeFactory, AvatarManager $avatarManager) {
+		parent::__construct($timeFactory);
+		$this->avatarManager = $avatarManager;
+	}
+
+	public function run($argument) {
+		$this->avatarManager->clearCachedAvatars();
+	}
+}

wedding-pics/lib/private/Repair/Collation.php

@@ -0,0 +1,149 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ *
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Robin Appelman <robin@icewind.nl>
+ * @author Robin Müller <coder-hugo@users.noreply.github.com>
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair;
+
+use Doctrine\DBAL\Exception\DriverException;
+use Doctrine\DBAL\Platforms\MySQLPlatform;
+use OCP\IConfig;
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+use Psr\Log\LoggerInterface;
+
+class Collation implements IRepairStep {
+	/**  @var IConfig */
+	protected $config;
+
+	protected LoggerInterface $logger;
+
+	/** @var IDBConnection */
+	protected $connection;
+
+	/** @var bool */
+	protected $ignoreFailures;
+
+	/**
+	 * @param bool $ignoreFailures
+	 */
+	public function __construct(
+		IConfig $config,
+		LoggerInterface $logger,
+		IDBConnection $connection,
+		$ignoreFailures
+	) {
+		$this->connection = $connection;
+		$this->config = $config;
+		$this->logger = $logger;
+		$this->ignoreFailures = $ignoreFailures;
+	}
+
+	public function getName() {
+		return 'Repair MySQL collation';
+	}
+
+	/**
+	 * Fix mime types
+	 */
+	public function run(IOutput $output) {
+		if (!$this->connection->getDatabasePlatform() instanceof MySQLPlatform) {
+			$output->info('Not a mysql database -> nothing to do');
+			return;
+		}
+
+		$characterSet = $this->config->getSystemValueBool('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
+
+		$tables = $this->getAllNonUTF8BinTables($this->connection);
+		foreach ($tables as $table) {
+			$output->info("Change row format for $table ...");
+			$query = $this->connection->prepare('ALTER TABLE `' . $table . '` ROW_FORMAT = DYNAMIC;');
+			try {
+				$query->execute();
+			} catch (DriverException $e) {
+				// Just log this
+				$this->logger->error($e->getMessage(), ['exception' => $e]);
+				if (!$this->ignoreFailures) {
+					throw $e;
+				}
+			}
+
+			$output->info("Change collation for $table ...");
+			$query = $this->connection->prepare('ALTER TABLE `' . $table . '` CONVERT TO CHARACTER SET ' . $characterSet . ' COLLATE ' . $characterSet . '_bin;');
+			try {
+				$query->execute();
+			} catch (DriverException $e) {
+				// Just log this
+				$this->logger->error($e->getMessage(), ['exception' => $e]);
+				if (!$this->ignoreFailures) {
+					throw $e;
+				}
+			}
+		}
+		if (empty($tables)) {
+			$output->info('All tables already have the correct collation -> nothing to do');
+		}
+	}
+
+	/**
+	 * @param IDBConnection $connection
+	 * @return string[]
+	 */
+	protected function getAllNonUTF8BinTables(IDBConnection $connection) {
+		$dbName = $this->config->getSystemValueString("dbname");
+		$characterSet = $this->config->getSystemValueBool('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
+
+		// fetch tables by columns
+		$statement = $connection->executeQuery(
+			"SELECT DISTINCT(TABLE_NAME) AS `table`" .
+			"	FROM INFORMATION_SCHEMA . COLUMNS" .
+			"	WHERE TABLE_SCHEMA = ?" .
+			"	AND (COLLATION_NAME <> '" . $characterSet . "_bin' OR CHARACTER_SET_NAME <> '" . $characterSet . "')" .
+			"	AND TABLE_NAME LIKE '*PREFIX*%'",
+			[$dbName]
+		);
+		$rows = $statement->fetchAll();
+		$result = [];
+		foreach ($rows as $row) {
+			$result[$row['table']] = true;
+		}
+
+		// fetch tables by collation
+		$statement = $connection->executeQuery(
+			"SELECT DISTINCT(TABLE_NAME) AS `table`" .
+			"	FROM INFORMATION_SCHEMA . TABLES" .
+			"	WHERE TABLE_SCHEMA = ?" .
+			"	AND TABLE_COLLATION <> '" . $characterSet . "_bin'" .
+			"	AND TABLE_NAME LIKE '*PREFIX*%'",
+			[$dbName]
+		);
+		$rows = $statement->fetchAll();
+		foreach ($rows as $row) {
+			$result[$row['table']] = true;
+		}
+
+		return array_keys($result);
+	}
+}

wedding-pics/lib/private/Repair/Events/RepairAdvanceEvent.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2022 Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @author Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair\Events;
+
+use OCP\EventDispatcher\Event;
+
+class RepairAdvanceEvent extends Event {
+	private int $increment;
+	private string $description;
+
+	public function __construct(
+		int $increment,
+		string $description
+	) {
+		$this->increment = $increment;
+		$this->description = $description;
+	}
+
+	public function getIncrement(): int {
+		return $this->increment;
+	}
+
+	public function getDescription(): string {
+		return $this->description;
+	}
+}

wedding-pics/lib/private/Repair/Events/RepairErrorEvent.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2022 Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @author Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair\Events;
+
+use OCP\EventDispatcher\Event;
+
+class RepairErrorEvent extends Event {
+	private string $message;
+
+	public function __construct(
+		string $message
+	) {
+		$this->message = $message;
+	}
+
+	public function getMessage(): string {
+		return $this->message;
+	}
+}

wedding-pics/lib/private/Repair/Events/RepairFinishEvent.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2022 Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @author Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair\Events;
+
+use OCP\EventDispatcher\Event;
+
+class RepairFinishEvent extends Event {
+}

wedding-pics/lib/private/Repair/Events/RepairInfoEvent.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2022 Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @author Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair\Events;
+
+use OCP\EventDispatcher\Event;
+
+class RepairInfoEvent extends Event {
+	private string $message;
+
+	public function __construct(
+		string $message
+	) {
+		$this->message = $message;
+	}
+
+	public function getMessage(): string {
+		return $this->message;
+	}
+}

wedding-pics/lib/private/Repair/Events/RepairStartEvent.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2022 Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @author Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair\Events;
+
+use OCP\EventDispatcher\Event;
+
+class RepairStartEvent extends Event {
+	private int $max;
+	private string $current;
+
+	public function __construct(
+		int $max,
+		string $current
+	) {
+		$this->max = $max;
+		$this->current = $current;
+	}
+
+	public function getMaxStep(): int {
+		return $this->max;
+	}
+
+	public function getCurrentStepName(): string {
+		return $this->current;
+	}
+}

wedding-pics/lib/private/Repair/Events/RepairStepEvent.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2022 Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @author Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair\Events;
+
+use OCP\EventDispatcher\Event;
+
+class RepairStepEvent extends Event {
+	private string $stepName;
+
+	public function __construct(
+		string $stepName
+	) {
+		$this->stepName = $stepName;
+	}
+
+	public function getStepName(): string {
+		return $this->stepName;
+	}
+}

wedding-pics/lib/private/Repair/Events/RepairWarningEvent.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2022 Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @author Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair\Events;
+
+use OCP\EventDispatcher\Event;
+
+class RepairWarningEvent extends Event {
+	private string $message;
+
+	public function __construct(
+		string $message
+	) {
+		$this->message = $message;
+	}
+
+	public function getMessage(): string {
+		return $this->message;
+	}
+}

wedding-pics/lib/private/Repair/MoveUpdaterStepFile.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Morris Jobke <hey@morrisjobke.de>
+ *
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 OC\Repair;
+
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class MoveUpdaterStepFile implements IRepairStep {
+	/** @var \OCP\IConfig */
+	protected $config;
+
+	/**
+	 * @param \OCP\IConfig $config
+	 */
+	public function __construct($config) {
+		$this->config = $config;
+	}
+
+	public function getName() {
+		return 'Move .step file of updater to backup location';
+	}
+
+	public function run(IOutput $output) {
+		$updateDir = $this->config->getSystemValue('updatedirectory', null) ?? $this->config->getSystemValue('datadirectory', \OC::$SERVERROOT . '/data');
+		$instanceId = $this->config->getSystemValueString('instanceid');
+
+		if (empty($instanceId)) {
+			return;
+		}
+
+		$updaterFolderPath = $updateDir . '/updater-' . $instanceId;
+		$stepFile = $updaterFolderPath . '/.step';
+		if (file_exists($stepFile)) {
+			$output->info('.step file exists');
+
+			$previousStepFile = $updaterFolderPath . '/.step-previous-update';
+
+			// cleanup
+			if (file_exists($previousStepFile)) {
+				if (\OC_Helper::rmdirr($previousStepFile)) {
+					$output->info('.step-previous-update removed');
+				} else {
+					$output->info('.step-previous-update can\'t be removed - abort move of .step file');
+					return;
+				}
+			}
+
+			// move step file
+			if (rename($stepFile, $previousStepFile)) {
+				$output->info('.step file moved to .step-previous-update');
+			} else {
+				$output->warning('.step file can\'t be moved');
+			}
+		}
+	}
+}

wedding-pics/lib/private/Repair/NC11/FixMountStorages.php

@@ -0,0 +1,78 @@
+<?php
+/**
+ * @copyright 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @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 OC\Repair\NC11;
+
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class FixMountStorages implements IRepairStep {
+	/** @var IDBConnection */
+	private $db;
+
+	/**
+	 * @param IDBConnection $db
+	 */
+	public function __construct(IDBConnection $db) {
+		$this->db = $db;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getName() {
+		return 'Fix potential broken mount points';
+	}
+
+	public function run(IOutput $output) {
+		$query = $this->db->getQueryBuilder();
+		$query->select('m.id', 'f.storage')
+			->from('mounts', 'm')
+			->leftJoin('m', 'filecache', 'f', $query->expr()->eq('m.root_id', 'f.fileid'))
+			->where($query->expr()->neq('m.storage_id', 'f.storage'));
+
+		$update = $this->db->getQueryBuilder();
+		$update->update('mounts')
+			->set('storage_id', $update->createParameter('storage'))
+			->where($query->expr()->eq('id', $update->createParameter('mount')));
+
+		$result = $query->execute();
+		$entriesUpdated = 0;
+		while ($row = $result->fetch()) {
+			$update->setParameter('storage', $row['storage'], IQueryBuilder::PARAM_INT)
+				->setParameter('mount', $row['id'], IQueryBuilder::PARAM_INT);
+			$update->execute();
+			$entriesUpdated++;
+		}
+		$result->closeCursor();
+
+		if ($entriesUpdated > 0) {
+			$output->info($entriesUpdated . ' mounts updated');
+			return;
+		}
+
+		$output->info('No mounts updated');
+	}
+}

wedding-pics/lib/private/Repair/NC13/AddLogRotateJob.php

@@ -0,0 +1,45 @@
+<?php
+/**
+ * @copyright 2017, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @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 OC\Repair\NC13;
+
+use OC\Log\Rotate;
+use OCP\BackgroundJob\IJobList;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class AddLogRotateJob implements IRepairStep {
+	/** @var IJobList */
+	private $jobList;
+
+	public function __construct(IJobList $jobList) {
+		$this->jobList = $jobList;
+	}
+
+	public function getName() {
+		return 'Add log rotate job';
+	}
+
+	public function run(IOutput $output) {
+		$this->jobList->add(Rotate::class);
+	}
+}

wedding-pics/lib/private/Repair/NC14/AddPreviewBackgroundCleanupJob.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @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 OC\Repair\NC14;
+
+use OC\Preview\BackgroundCleanupJob;
+use OCP\BackgroundJob\IJobList;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class AddPreviewBackgroundCleanupJob implements IRepairStep {
+	/** @var IJobList */
+	private $jobList;
+
+	public function __construct(IJobList $jobList) {
+		$this->jobList = $jobList;
+	}
+
+	public function getName(): string {
+		return 'Add preview background cleanup job';
+	}
+
+	public function run(IOutput $output) {
+		$this->jobList->add(BackgroundCleanupJob::class);
+	}
+}

wedding-pics/lib/private/Repair/NC16/AddClenupLoginFlowV2BackgroundJob.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2019, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @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 OC\Repair\NC16;
+
+use OC\Core\BackgroundJobs\CleanupLoginFlowV2;
+use OCP\BackgroundJob\IJobList;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class AddClenupLoginFlowV2BackgroundJob implements IRepairStep {
+	/** @var IJobList */
+	private $jobList;
+
+	public function __construct(IJobList $jobList) {
+		$this->jobList = $jobList;
+	}
+
+	public function getName(): string {
+		return 'Add background job to cleanup login flow v2 tokens';
+	}
+
+	public function run(IOutput $output) {
+		$this->jobList->add(CleanupLoginFlowV2::class);
+	}
+}

wedding-pics/lib/private/Repair/NC16/CleanupCardDAVPhotoCache.php

@@ -0,0 +1,110 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2019, Daniel Kesselberg (mail@danielkesselberg.de)
+ *
+ * @author Daniel Kesselberg <mail@danielkesselberg.de>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 OC\Repair\NC16;
+
+use OCP\Files\IAppData;
+use OCP\Files\NotFoundException;
+use OCP\Files\SimpleFS\ISimpleFolder;
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+use Psr\Log\LoggerInterface;
+use RuntimeException;
+
+/**
+ * Class CleanupCardDAVPhotoCache
+ *
+ * This repair step removes "photo." files created by photocache
+ *
+ * Before https://github.com/nextcloud/server/pull/13843 a "photo." file could be created
+ * for unsupported image formats by photocache. Because a file is present but not jpg, png or gif no
+ * photo could be returned for this vcard. These invalid files are removed by this migration step.
+ */
+class CleanupCardDAVPhotoCache implements IRepairStep {
+	/** @var IConfig */
+	private $config;
+
+	/** @var IAppData */
+	private $appData;
+
+	private LoggerInterface $logger;
+
+	public function __construct(IConfig $config, IAppData $appData, LoggerInterface $logger) {
+		$this->config = $config;
+		$this->appData = $appData;
+		$this->logger = $logger;
+	}
+
+	public function getName(): string {
+		return 'Cleanup invalid photocache files for carddav';
+	}
+
+	private function repair(IOutput $output): void {
+		try {
+			$folders = $this->appData->getDirectoryListing();
+		} catch (NotFoundException $e) {
+			return;
+		} catch (RuntimeException $e) {
+			$this->logger->error('Failed to fetch directory listing in CleanupCardDAVPhotoCache', ['exception' => $e]);
+			return;
+		}
+
+		$folders = array_filter($folders, function (ISimpleFolder $folder) {
+			return $folder->fileExists('photo.');
+		});
+
+		if (empty($folders)) {
+			return;
+		}
+
+		$output->info('Delete ' . count($folders) . ' "photo." files');
+
+		foreach ($folders as $folder) {
+			try {
+				/** @var ISimpleFolder $folder */
+				$folder->getFile('photo.')->delete();
+			} catch (\Exception $e) {
+				$this->logger->error($e->getMessage(), ['exception' => $e]);
+				$output->warning('Could not delete file "dav-photocache/' . $folder->getName() . '/photo."');
+			}
+		}
+	}
+
+	private function shouldRun(): bool {
+		return version_compare(
+			$this->config->getSystemValueString('version', '0.0.0.0'),
+			'16.0.0.0',
+			'<='
+		);
+	}
+
+	public function run(IOutput $output): void {
+		if ($this->shouldRun()) {
+			$this->repair($output);
+		}
+	}
+}

wedding-pics/lib/private/Repair/NC16/ClearCollectionsAccessCache.php

@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2019 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Joas Schilling <coding@schilljs.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 OC\Repair\NC16;
+
+use OC\Collaboration\Resources\Manager;
+use OCP\Collaboration\Resources\IManager;
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class ClearCollectionsAccessCache implements IRepairStep {
+	/** @var IConfig */
+	private $config;
+
+	/** @var Manager */
+	private $manager;
+
+	public function __construct(IConfig $config, IManager $manager) {
+		$this->config = $config;
+		$this->manager = $manager;
+	}
+
+	public function getName(): string {
+		return 'Clear access cache of projects';
+	}
+
+	private function shouldRun(): bool {
+		$versionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0.0');
+		return version_compare($versionFromBeforeUpdate, '17.0.0.3', '<=');
+	}
+
+	public function run(IOutput $output): void {
+		if ($this->shouldRun()) {
+			$this->manager->invalidateAccessCacheForAllCollections();
+		}
+	}
+}

wedding-pics/lib/private/Repair/NC18/ResetGeneratedAvatarFlag.php

@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2019, Joas Schilling <coding@schilljs.com>
+ *
+ * @author Joas Schilling <coding@schilljs.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 OC\Repair\NC18;
+
+use OCP\IConfig;
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class ResetGeneratedAvatarFlag implements IRepairStep {
+	/** @var IConfig */
+	private $config;
+	/** @var IDBConnection */
+	private $connection;
+
+	public function __construct(IConfig $config,
+		IDBConnection $connection) {
+		$this->config = $config;
+		$this->connection = $connection;
+	}
+
+	public function getName(): string {
+		return 'Reset generated avatar flag';
+	}
+
+	private function shouldRun(): bool {
+		$versionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0.0');
+		return version_compare($versionFromBeforeUpdate, '18.0.0.5', '<=');
+	}
+
+	public function run(IOutput $output): void {
+		if ($this->shouldRun()) {
+			$query = $this->connection->getQueryBuilder();
+			$query->delete('preferences')
+				->where($query->expr()->eq('appid', $query->createNamedParameter('avatar')))
+				->andWhere($query->expr()->eq('configkey', $query->createNamedParameter('generated')));
+		}
+	}
+}

wedding-pics/lib/private/Repair/NC20/EncryptionLegacyCipher.php

@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2020, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @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 OC\Repair\NC20;
+
+use OCP\Encryption\IManager;
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class EncryptionLegacyCipher implements IRepairStep {
+	/** @var IConfig */
+	private $config;
+	/** @var IManager */
+	private $manager;
+
+	public function __construct(IConfig $config,
+		IManager $manager) {
+		$this->config = $config;
+		$this->manager = $manager;
+	}
+
+	public function getName(): string {
+		return 'Keep legacy encryption enabled';
+	}
+
+	private function shouldRun(): bool {
+		$versionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0.0');
+		return version_compare($versionFromBeforeUpdate, '20.0.0.0', '<=');
+	}
+
+	public function run(IOutput $output): void {
+		if (!$this->shouldRun()) {
+			return;
+		}
+
+		$masterKeyId = $this->config->getAppValue('encryption', 'masterKeyId');
+		if ($this->manager->isEnabled() || !empty($masterKeyId)) {
+			if ($this->config->getSystemValue('encryption.legacy_format_support', '') === '') {
+				$this->config->setSystemValue('encryption.legacy_format_support', true);
+			}
+		}
+	}
+}

wedding-pics/lib/private/Repair/NC20/EncryptionMigration.php

@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2020, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @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 OC\Repair\NC20;
+
+use OCP\Encryption\IManager;
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class EncryptionMigration implements IRepairStep {
+	/** @var IConfig */
+	private $config;
+	/** @var IManager */
+	private $manager;
+
+	public function __construct(IConfig $config,
+		IManager $manager) {
+		$this->config = $config;
+		$this->manager = $manager;
+	}
+
+	public function getName(): string {
+		return 'Check encryption key format';
+	}
+
+	private function shouldRun(): bool {
+		$versionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0.0');
+		return version_compare($versionFromBeforeUpdate, '20.0.0.1', '<=');
+	}
+
+	public function run(IOutput $output): void {
+		if (!$this->shouldRun()) {
+			return;
+		}
+
+		$masterKeyId = $this->config->getAppValue('encryption', 'masterKeyId');
+		if ($this->manager->isEnabled() || !empty($masterKeyId)) {
+			if ($this->config->getSystemValue('encryption.key_storage_migrated', '') === '') {
+				$this->config->setSystemValue('encryption.key_storage_migrated', false);
+			}
+		}
+	}
+}

wedding-pics/lib/private/Repair/NC20/ShippedDashboardEnable.php

@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2020 Julius Härtl <jus@bitgrid.net>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @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 OC\Repair\NC20;
+
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class ShippedDashboardEnable implements IRepairStep {
+	/** @var IConfig */
+	private $config;
+
+	public function __construct(IConfig $config) {
+		$this->config = $config;
+	}
+
+	public function getName() {
+		return 'Remove old dashboard app config data';
+	}
+
+	public function run(IOutput $output) {
+		$version = $this->config->getAppValue('dashboard', 'version', '7.0.0');
+		if (version_compare($version, '7.0.0', '<')) {
+			$this->config->deleteAppValues('dashboard');
+			$output->info('Removed old dashboard app config');
+		}
+	}
+}

wedding-pics/lib/private/Repair/NC21/AddCheckForUserCertificatesJob.php

@@ -0,0 +1,59 @@
+<?php
+/**
+ * @copyright Copyright (c) 2020 Morris Jobke <hey@morrisjobke.de>
+ *
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 OC\Repair\NC21;
+
+use OC\Core\BackgroundJobs\CheckForUserCertificates;
+use OCP\BackgroundJob\IJobList;
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class AddCheckForUserCertificatesJob implements IRepairStep {
+	/** @var IJobList */
+	protected $jobList;
+	/** @var IConfig */
+	private $config;
+
+	public function __construct(IConfig $config, IJobList $jobList) {
+		$this->jobList = $jobList;
+		$this->config = $config;
+	}
+
+	public function getName() {
+		return 'Queue a one-time job to check for user uploaded certificates';
+	}
+
+	private function shouldRun() {
+		$versionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0.0');
+
+		// was added to 21.0.0.2
+		return version_compare($versionFromBeforeUpdate, '21.0.0.2', '<');
+	}
+
+	public function run(IOutput $output) {
+		if ($this->shouldRun()) {
+			$this->config->setAppValue('files_external', 'user_certificate_scan', 'not-run-yet');
+			$this->jobList->add(CheckForUserCertificates::class);
+		}
+	}
+}

wedding-pics/lib/private/Repair/NC21/ValidatePhoneNumber.php

@@ -0,0 +1,88 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2020 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
+ * @author Joas Schilling <coding@schilljs.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 OC\Repair\NC21;
+
+use OCP\Accounts\IAccountManager;
+use OCP\IConfig;
+use OCP\IUser;
+use OCP\IUserManager;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class ValidatePhoneNumber implements IRepairStep {
+	/** @var IConfig */
+	protected $config;
+	/** @var IUserManager */
+	protected $userManager;
+	/** @var IAccountManager */
+	private $accountManager;
+
+	public function __construct(IUserManager $userManager,
+		IAccountManager $accountManager,
+		IConfig $config) {
+		$this->config = $config;
+		$this->userManager = $userManager;
+		$this->accountManager = $accountManager;
+	}
+
+	public function getName(): string {
+		return 'Validate the phone number and store it in a known format for search';
+	}
+
+	public function run(IOutput $output): void {
+		if ($this->config->getSystemValueString('default_phone_region', '') === '') {
+			$output->warning('Can not validate phone numbers without `default_phone_region` being set in the config file');
+			return;
+		}
+
+		$numUpdated = 0;
+		$numRemoved = 0;
+
+		$this->userManager->callForSeenUsers(function (IUser $user) use (&$numUpdated, &$numRemoved) {
+			$account = $this->accountManager->getAccount($user);
+			$property = $account->getProperty(IAccountManager::PROPERTY_PHONE);
+
+			if ($property->getValue() !== '') {
+				$this->accountManager->updateAccount($account);
+				$updatedAccount = $this->accountManager->getAccount($user);
+				$updatedProperty = $updatedAccount->getProperty(IAccountManager::PROPERTY_PHONE);
+
+				if ($property->getValue() !== $updatedProperty->getValue()) {
+					if ($updatedProperty->getValue() === '') {
+						$numRemoved++;
+					} else {
+						$numUpdated++;
+					}
+				}
+			}
+		});
+
+		if ($numRemoved > 0 || $numUpdated > 0) {
+			$output->info('Updated ' . $numUpdated . ' entries and cleaned ' . $numRemoved . ' invalid phone numbers');
+		}
+	}
+}

wedding-pics/lib/private/Repair/NC22/LookupServerSendCheck.php

@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2021 Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @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 OC\Repair\NC22;
+
+use OC\Core\BackgroundJobs\LookupServerSendCheckBackgroundJob;
+use OCP\BackgroundJob\IJobList;
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class LookupServerSendCheck implements IRepairStep {
+	private IJobList $jobList;
+	private IConfig $config;
+
+	public function __construct(IJobList $jobList, IConfig $config) {
+		$this->jobList = $jobList;
+		$this->config = $config;
+	}
+
+	public function getName(): string {
+		return 'Add background job to set the lookup server share state for users';
+	}
+
+	public function run(IOutput $output): void {
+		$this->jobList->add(LookupServerSendCheckBackgroundJob::class);
+	}
+}

wedding-pics/lib/private/Repair/NC24/AddTokenCleanupJob.php

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2022 Thomas Citharel <nextcloud@tcit.fr>
+ *
+ * @author Thomas Citharel <nextcloud@tcit.fr>
+ *
+ * @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 OC\Repair\NC24;
+
+use OC\Authentication\Token\TokenCleanupJob;
+use OCP\BackgroundJob\IJobList;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class AddTokenCleanupJob implements IRepairStep {
+	private IJobList $jobList;
+
+	public function __construct(IJobList $jobList) {
+		$this->jobList = $jobList;
+	}
+
+	public function getName(): string {
+		return 'Add token cleanup job';
+	}
+
+	public function run(IOutput $output) {
+		$this->jobList->add(TokenCleanupJob::class);
+	}
+}

wedding-pics/lib/private/Repair/NC25/AddMissingSecretJob.php

@@ -0,0 +1,63 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2022 Carl Schwan <carl@carlschwan.eu>
+ * @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 OC\Repair\NC25;
+
+use OCP\HintException;
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+use OCP\Security\ISecureRandom;
+
+class AddMissingSecretJob implements IRepairStep {
+	private IConfig $config;
+	private ISecureRandom $random;
+
+	public function __construct(IConfig $config, ISecureRandom $random) {
+		$this->config = $config;
+		$this->random = $random;
+	}
+
+	public function getName(): string {
+		return 'Add possibly missing system config';
+	}
+
+	public function run(IOutput $output): void {
+		$passwordSalt = $this->config->getSystemValueString('passwordsalt', '');
+		if ($passwordSalt === '') {
+			try {
+				$this->config->setSystemValue('passwordsalt', $this->random->generate(30));
+			} catch (HintException $e) {
+				$output->warning("passwordsalt is missing from your config.php and your config.php is read only. Please fix it manually.");
+			}
+		}
+
+		$secret = $this->config->getSystemValueString('secret', '');
+		if ($secret === '') {
+			try {
+				$this->config->setSystemValue('secret', $this->random->generate(48));
+			} catch (HintException $e) {
+				$output->warning("secret is missing from your config.php and your config.php is read only. Please fix it manually.");
+			}
+		}
+	}
+}

wedding-pics/lib/private/Repair/OldGroupMembershipShares.php

@@ -0,0 +1,116 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair;
+
+use OCP\IDBConnection;
+use OCP\IGroupManager;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+use OCP\Share\IShare;
+
+class OldGroupMembershipShares implements IRepairStep {
+	/** @var \OCP\IDBConnection */
+	protected $connection;
+
+	/** @var \OCP\IGroupManager */
+	protected $groupManager;
+
+	/**
+	 * @var array [gid => [uid => (bool)]]
+	 */
+	protected $memberships;
+
+	/**
+	 * @param IDBConnection $connection
+	 * @param IGroupManager $groupManager
+	 */
+	public function __construct(IDBConnection $connection, IGroupManager $groupManager) {
+		$this->connection = $connection;
+		$this->groupManager = $groupManager;
+	}
+
+	/**
+	 * Returns the step's name
+	 *
+	 * @return string
+	 */
+	public function getName() {
+		return 'Remove shares of old group memberships';
+	}
+
+	/**
+	 * Run repair step.
+	 * Must throw exception on error.
+	 *
+	 * @throws \Exception in case of failure
+	 */
+	public function run(IOutput $output) {
+		$deletedEntries = 0;
+
+		$query = $this->connection->getQueryBuilder();
+		$query->select('s1.id')->selectAlias('s1.share_with', 'user')->selectAlias('s2.share_with', 'group')
+			->from('share', 's1')
+			->where($query->expr()->isNotNull('s1.parent'))
+				// \OC\Share\Constant::$shareTypeGroupUserUnique === 2
+				->andWhere($query->expr()->eq('s1.share_type', $query->expr()->literal(2)))
+				->andWhere($query->expr()->isNotNull('s2.id'))
+				->andWhere($query->expr()->eq('s2.share_type', $query->expr()->literal(IShare::TYPE_GROUP)))
+			->leftJoin('s1', 'share', 's2', $query->expr()->eq('s1.parent', 's2.id'));
+
+		$deleteQuery = $this->connection->getQueryBuilder();
+		$deleteQuery->delete('share')
+			->where($query->expr()->eq('id', $deleteQuery->createParameter('share')));
+
+		$result = $query->execute();
+		while ($row = $result->fetch()) {
+			if (!$this->isMember($row['group'], $row['user'])) {
+				$deletedEntries += $deleteQuery->setParameter('share', (int) $row['id'])
+					->execute();
+			}
+		}
+		$result->closeCursor();
+
+		if ($deletedEntries) {
+			$output->info('Removed ' . $deletedEntries . ' shares where user is not a member of the group anymore');
+		}
+	}
+
+	/**
+	 * @param string $gid
+	 * @param string $uid
+	 * @return bool
+	 */
+	protected function isMember($gid, $uid) {
+		if (isset($this->memberships[$gid][$uid])) {
+			return $this->memberships[$gid][$uid];
+		}
+
+		$isMember = $this->groupManager->isInGroup($uid, $gid);
+		if (!isset($this->memberships[$gid])) {
+			$this->memberships[$gid] = [];
+		}
+		$this->memberships[$gid][$uid] = $isMember;
+
+		return $isMember;
+	}
+}

wedding-pics/lib/private/Repair/Owncloud/CleanPreviews.php

@@ -0,0 +1,72 @@
+<?php
+/**
+ * @copyright 2016 Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @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 OC\Repair\Owncloud;
+
+use OCP\BackgroundJob\IJobList;
+use OCP\IConfig;
+use OCP\IUser;
+use OCP\IUserManager;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class CleanPreviews implements IRepairStep {
+	/** @var IJobList */
+	private $jobList;
+
+	/** @var IUserManager */
+	private $userManager;
+
+	/** @var IConfig */
+	private $config;
+
+	/**
+	 * MoveAvatars constructor.
+	 *
+	 * @param IJobList $jobList
+	 * @param IUserManager $userManager
+	 * @param IConfig $config
+	 */
+	public function __construct(IJobList $jobList,
+		IUserManager $userManager,
+		IConfig $config) {
+		$this->jobList = $jobList;
+		$this->userManager = $userManager;
+		$this->config = $config;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getName() {
+		return 'Add preview cleanup background jobs';
+	}
+
+	public function run(IOutput $output) {
+		if (!$this->config->getAppValue('core', 'previewsCleanedUp', false)) {
+			$this->userManager->callForSeenUsers(function (IUser $user) {
+				$this->jobList->add(CleanPreviewsBackgroundJob::class, ['uid' => $user->getUID()]);
+			});
+			$this->config->setAppValue('core', 'previewsCleanedUp', '1');
+		}
+	}
+}

wedding-pics/lib/private/Repair/Owncloud/CleanPreviewsBackgroundJob.php

@@ -0,0 +1,125 @@
+<?php
+/**
+ * @copyright 2016 Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @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 OC\Repair\Owncloud;
+
+use OC\BackgroundJob\QueuedJob;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\BackgroundJob\IJobList;
+use OCP\Files\Folder;
+use OCP\Files\IRootFolder;
+use OCP\Files\NotFoundException;
+use OCP\Files\NotPermittedException;
+use OCP\IUserManager;
+use Psr\Log\LoggerInterface;
+
+class CleanPreviewsBackgroundJob extends QueuedJob {
+	/** @var IRootFolder */
+	private $rootFolder;
+
+	private LoggerInterface $logger;
+
+	/** @var IJobList */
+	private $jobList;
+
+	/** @var ITimeFactory */
+	private $timeFactory;
+
+	/** @var IUserManager */
+	private $userManager;
+
+	/**
+	 * CleanPreviewsBackgroundJob constructor.
+	 */
+	public function __construct(IRootFolder $rootFolder,
+		LoggerInterface $logger,
+		IJobList $jobList,
+		ITimeFactory $timeFactory,
+		IUserManager $userManager) {
+		$this->rootFolder = $rootFolder;
+		$this->logger = $logger;
+		$this->jobList = $jobList;
+		$this->timeFactory = $timeFactory;
+		$this->userManager = $userManager;
+	}
+
+	public function run($arguments) {
+		$uid = $arguments['uid'];
+		if (!$this->userManager->userExists($uid)) {
+			$this->logger->info('User no longer exists, skip user ' . $uid);
+			return;
+		}
+		$this->logger->info('Started preview cleanup for ' . $uid);
+		$empty = $this->cleanupPreviews($uid);
+
+		if (!$empty) {
+			$this->jobList->add(self::class, ['uid' => $uid]);
+			$this->logger->info('New preview cleanup scheduled for ' . $uid);
+		} else {
+			$this->logger->info('Preview cleanup done for ' . $uid);
+		}
+	}
+
+	/**
+	 * @param $uid
+	 * @return bool
+	 */
+	private function cleanupPreviews($uid) {
+		try {
+			$userFolder = $this->rootFolder->getUserFolder($uid);
+		} catch (NotFoundException $e) {
+			return true;
+		}
+
+		$userRoot = $userFolder->getParent();
+
+		try {
+			/** @var Folder $thumbnailFolder */
+			$thumbnailFolder = $userRoot->get('thumbnails');
+		} catch (NotFoundException $e) {
+			return true;
+		}
+
+		$thumbnails = $thumbnailFolder->getDirectoryListing();
+
+		$start = $this->timeFactory->getTime();
+		foreach ($thumbnails as $thumbnail) {
+			try {
+				$thumbnail->delete();
+			} catch (NotPermittedException $e) {
+				// Ignore
+			}
+
+			if (($this->timeFactory->getTime() - $start) > 15) {
+				return false;
+			}
+		}
+
+		try {
+			$thumbnailFolder->delete();
+		} catch (NotPermittedException $e) {
+			// Ignore
+		}
+
+		return true;
+	}
+}

wedding-pics/lib/private/Repair/Owncloud/DropAccountTermsTable.php

@@ -0,0 +1,57 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Joas Schilling <coding@schilljs.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 OC\Repair\Owncloud;
+
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class DropAccountTermsTable implements IRepairStep {
+	/** @var IDBConnection */
+	protected $db;
+
+	/**
+	 * @param IDBConnection $db
+	 */
+	public function __construct(IDBConnection $db) {
+		$this->db = $db;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getName() {
+		return 'Drop account terms table when migrating from ownCloud';
+	}
+
+	/**
+	 * @param IOutput $output
+	 */
+	public function run(IOutput $output) {
+		if (!$this->db->tableExists('account_terms')) {
+			return;
+		}
+
+		$this->db->dropTable('account_terms');
+	}
+}

wedding-pics/lib/private/Repair/Owncloud/MigrateOauthTables.php

@@ -0,0 +1,178 @@
+<?php
+/**
+ * @copyright 2021 Louis Chemineau <louis@chmn.me>
+ *
+ * @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 OC\Repair\Owncloud;
+
+use OC\DB\Connection;
+use OC\DB\SchemaWrapper;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class MigrateOauthTables implements IRepairStep {
+	/** @var Connection */
+	protected $db;
+
+	/**
+	 * @param Connection $db
+	 */
+	public function __construct(Connection $db) {
+		$this->db = $db;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getName() {
+		return 'Migrate oauth2_clients table to nextcloud schema';
+	}
+
+	public function run(IOutput $output) {
+		$schema = new SchemaWrapper($this->db);
+		if (!$schema->hasTable('oauth2_clients')) {
+			$output->info("oauth2_clients table does not exist.");
+			return;
+		}
+
+		$output->info("Update the oauth2_access_tokens table schema.");
+		$schema = new SchemaWrapper($this->db);
+		$table = $schema->getTable('oauth2_access_tokens');
+		if (!$table->hasColumn('hashed_code')) {
+			$table->addColumn('hashed_code', 'string', [
+				'notnull' => true,
+				'length' => 128,
+			]);
+		}
+		if (!$table->hasColumn('encrypted_token')) {
+			$table->addColumn('encrypted_token', 'string', [
+				'notnull' => true,
+				'length' => 786,
+			]);
+		}
+		if (!$table->hasIndex('oauth2_access_hash_idx')) {
+			$table->addUniqueIndex(['hashed_code'], 'oauth2_access_hash_idx');
+		}
+		if (!$table->hasIndex('oauth2_access_client_id_idx')) {
+			$table->addIndex(['client_id'], 'oauth2_access_client_id_idx');
+		}
+
+		$output->info("Update the oauth2_clients table schema.");
+		$schema = new SchemaWrapper($this->db);
+		$table = $schema->getTable('oauth2_clients');
+		if ($table->getColumn('name')->getLength() !== 64) {
+			// shorten existing values before resizing the column
+			$qb = $this->db->getQueryBuilder();
+			$qb->update('oauth2_clients')
+				->set('name', $qb->createParameter('shortenedName'))
+				->where($qb->expr()->eq('id', $qb->createParameter('theId')));
+
+			$qbSelect = $this->db->getQueryBuilder();
+			$qbSelect->select('id', 'name')
+				->from('oauth2_clients');
+
+			$result = $qbSelect->executeQuery();
+			while ($row = $result->fetch()) {
+				$id = $row['id'];
+				$shortenedName = mb_substr($row['name'], 0, 64);
+				$qb->setParameter('theId', $id, IQueryBuilder::PARAM_INT);
+				$qb->setParameter('shortenedName', $shortenedName, IQueryBuilder::PARAM_STR);
+				$qb->executeStatement();
+			}
+			$result->closeCursor();
+
+			// safely set the new column length
+			$table->getColumn('name')->setLength(64);
+		}
+		if ($table->hasColumn('allow_subdomains')) {
+			$table->dropColumn('allow_subdomains');
+		}
+		if ($table->hasColumn('trusted')) {
+			$table->dropColumn('trusted');
+		}
+
+		if (!$schema->getTable('oauth2_clients')->hasColumn('client_identifier')) {
+			$table->addColumn('client_identifier', 'string', [
+				'notnull' => true,
+				'length' => 64,
+				'default' => ''
+			]);
+			$table->addIndex(['client_identifier'], 'oauth2_client_id_idx');
+		}
+
+		$this->db->migrateToSchema($schema->getWrappedSchema());
+
+
+		if ($schema->getTable('oauth2_clients')->hasColumn('identifier')) {
+			$output->info("Move identifier column's data to the new client_identifier column.");
+			// 1. Fetch all [id, identifier] couple.
+			$selectQuery = $this->db->getQueryBuilder();
+			$selectQuery->select('id', 'identifier')->from('oauth2_clients');
+			$result = $selectQuery->executeQuery();
+			$identifiers = $result->fetchAll();
+			$result->closeCursor();
+
+			// 2. Insert them into the client_identifier column.
+			foreach ($identifiers as ["id" => $id, "identifier" => $clientIdentifier]) {
+				$insertQuery = $this->db->getQueryBuilder();
+				$insertQuery->update('oauth2_clients')
+					->set('client_identifier', $insertQuery->createNamedParameter($clientIdentifier, IQueryBuilder::PARAM_STR))
+					->where($insertQuery->expr()->eq('id', $insertQuery->createNamedParameter($id, IQueryBuilder::PARAM_INT)))
+					->executeStatement();
+			}
+
+			$output->info("Drop the identifier column.");
+			$schema = new SchemaWrapper($this->db);
+			$table = $schema->getTable('oauth2_clients');
+			$table->dropColumn('identifier');
+			$this->db->migrateToSchema($schema->getWrappedSchema());
+		}
+
+		$output->info('Delete clients (and their related access tokens) with the redirect_uri starting with oc:// or ending with *');
+		// delete the access tokens
+		$qbDeleteAccessTokens = $this->db->getQueryBuilder();
+
+		$qbSelectClientId = $this->db->getQueryBuilder();
+		$qbSelectClientId->select('id')
+			->from('oauth2_clients')
+			->where(
+				$qbSelectClientId->expr()->iLike('redirect_uri', $qbDeleteAccessTokens->createNamedParameter('oc://%', IQueryBuilder::PARAM_STR))
+			)
+			->orWhere(
+				$qbSelectClientId->expr()->iLike('redirect_uri', $qbDeleteAccessTokens->createNamedParameter('%*', IQueryBuilder::PARAM_STR))
+			);
+
+		$qbDeleteAccessTokens->delete('oauth2_access_tokens')
+			->where(
+				$qbSelectClientId->expr()->in('client_id', $qbDeleteAccessTokens->createFunction($qbSelectClientId->getSQL()), IQueryBuilder::PARAM_STR_ARRAY)
+			);
+		$qbDeleteAccessTokens->executeStatement();
+
+		// delete the clients
+		$qbDeleteClients = $this->db->getQueryBuilder();
+		$qbDeleteClients->delete('oauth2_clients')
+			->where(
+				$qbDeleteClients->expr()->iLike('redirect_uri', $qbDeleteClients->createNamedParameter('oc://%', IQueryBuilder::PARAM_STR))
+			)
+			->orWhere(
+				$qbDeleteClients->expr()->iLike('redirect_uri', $qbDeleteClients->createNamedParameter('%*', IQueryBuilder::PARAM_STR))
+			);
+		$qbDeleteClients->executeStatement();
+	}
+}

wedding-pics/lib/private/Repair/Owncloud/MoveAvatars.php

@@ -0,0 +1,71 @@
+<?php
+/**
+ * @copyright 2016 Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @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 OC\Repair\Owncloud;
+
+use OCP\BackgroundJob\IJobList;
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class MoveAvatars implements IRepairStep {
+	/** @var IJobList */
+	private $jobList;
+
+	/** @var IConfig */
+	private $config;
+
+	/**
+	 * MoveAvatars constructor.
+	 *
+	 * @param IJobList $jobList
+	 * @param IConfig $config
+	 */
+	public function __construct(IJobList $jobList,
+		IConfig $config) {
+		$this->jobList = $jobList;
+		$this->config = $config;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getName() {
+		return 'Add move avatar background job';
+	}
+
+	public function run(IOutput $output) {
+		// only run once
+		if ($this->config->getAppValue('core', 'moveavatarsdone') === 'yes') {
+			$output->info('Repair step already executed');
+			return;
+		}
+		if (!$this->config->getSystemValueBool('enable_avatars', true)) {
+			$output->info('Avatars are disabled');
+		} else {
+			$output->info('Add background job');
+			$this->jobList->add(MoveAvatarsBackgroundJob::class);
+			// if all were done, no need to redo the repair during next upgrade
+			$this->config->setAppValue('core', 'moveavatarsdone', 'yes');
+		}
+	}
+}

wedding-pics/lib/private/Repair/Owncloud/MoveAvatarsBackgroundJob.php

@@ -0,0 +1,115 @@
+<?php
+/**
+ * @copyright 2016 Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @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 OC\Repair\Owncloud;
+
+use OC\BackgroundJob\QueuedJob;
+use OCP\Files\IRootFolder;
+use OCP\Files\NotFoundException;
+use OCP\Files\Storage;
+use OCP\IAvatarManager;
+use OCP\IUser;
+use OCP\IUserManager;
+use Psr\Log\LoggerInterface;
+use function is_resource;
+
+class MoveAvatarsBackgroundJob extends QueuedJob {
+	/** @var IUserManager */
+	private $userManager;
+
+	/** @var LoggerInterface */
+	private $logger;
+
+	/** @var IAvatarManager */
+	private $avatarManager;
+
+	/** @var Storage */
+	private $owncloudAvatarStorage;
+
+	public function __construct(IUserManager $userManager, LoggerInterface $logger, IAvatarManager $avatarManager, IRootFolder $rootFolder) {
+		$this->userManager = $userManager;
+		$this->logger = $logger;
+		$this->avatarManager = $avatarManager;
+		try {
+			$this->owncloudAvatarStorage = $rootFolder->get('avatars')->getStorage();
+		} catch (\Exception $e) {
+		}
+	}
+
+	public function run($arguments) {
+		$this->logger->info('Started migrating avatars to AppData folder');
+		$this->moveAvatars();
+		$this->logger->info('All avatars migrated to AppData folder');
+	}
+
+	private function moveAvatars(): void {
+		if (!$this->owncloudAvatarStorage) {
+			$this->logger->info('No legacy avatars available, skipping migration');
+			return;
+		}
+
+		$counter = 0;
+		$this->userManager->callForSeenUsers(function (IUser $user) use ($counter) {
+			$uid = $user->getUID();
+
+			$path = 'avatars/' . $this->buildOwnCloudAvatarPath($uid);
+			$avatar = $this->avatarManager->getAvatar($uid);
+			try {
+				$avatarPath = $path . '/avatar.' . $this->getExtension($path);
+				$resource = $this->owncloudAvatarStorage->fopen($avatarPath, 'r');
+				if (is_resource($resource)) {
+					$avatar->set($resource);
+					fclose($resource);
+				} else {
+					throw new \Exception('Failed to open old avatar file for reading');
+				}
+			} catch (NotFoundException $e) {
+				// In case there is no avatar we can just skip
+			} catch (\Throwable $e) {
+				$this->logger->error('Failed to migrate avatar for user ' . $uid, ['exception' => $e]);
+			}
+
+			$counter++;
+			if ($counter % 100 === 0) {
+				$this->logger->info('{amount} avatars migrated', ['amount' => $counter]);
+			}
+		});
+	}
+
+	/**
+	 * @throws NotFoundException
+	 */
+	private function getExtension(string $path): string {
+		if ($this->owncloudAvatarStorage->file_exists("{$path}/avatar.jpg")) {
+			return 'jpg';
+		}
+		if ($this->owncloudAvatarStorage->file_exists("{$path}/avatar.png")) {
+			return 'png';
+		}
+		throw new NotFoundException("{$path}/avatar.jpg|png");
+	}
+
+	protected function buildOwnCloudAvatarPath(string $userId): string {
+		return substr_replace(substr_replace(md5($userId), '/', 4, 0), '/', 2, 0);
+	}
+}

wedding-pics/lib/private/Repair/Owncloud/SaveAccountsTableData.php

@@ -0,0 +1,199 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @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 OC\Repair\Owncloud;
+
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IConfig;
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+use OCP\PreConditionNotMetException;
+
+/**
+ * Copies the email address from the accounts table to the preference table,
+ * before the data structure is changed and the information is gone
+ */
+class SaveAccountsTableData implements IRepairStep {
+	public const BATCH_SIZE = 75;
+
+	/** @var IDBConnection */
+	protected $db;
+
+	/** @var IConfig */
+	protected $config;
+
+	protected $hasForeignKeyOnPersistentLocks = false;
+
+	/**
+	 * @param IDBConnection $db
+	 * @param IConfig $config
+	 */
+	public function __construct(IDBConnection $db, IConfig $config) {
+		$this->db = $db;
+		$this->config = $config;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getName() {
+		return 'Copy data from accounts table when migrating from ownCloud';
+	}
+
+	/**
+	 * @param IOutput $output
+	 */
+	public function run(IOutput $output) {
+		if (!$this->shouldRun()) {
+			return;
+		}
+
+		$offset = 0;
+		$numUsers = $this->runStep($offset);
+
+		while ($numUsers === self::BATCH_SIZE) {
+			$offset += $numUsers;
+			$numUsers = $this->runStep($offset);
+		}
+
+		// oc_persistent_locks will be removed later on anyways so we can just drop and ignore any foreign key constraints here
+		$tableName = $this->config->getSystemValueString('dbtableprefix', 'oc_') . 'persistent_locks';
+		$schema = $this->db->createSchema();
+		$table = $schema->getTable($tableName);
+		foreach ($table->getForeignKeys() as $foreignKey) {
+			$table->removeForeignKey($foreignKey->getName());
+		}
+		$this->db->migrateToSchema($schema);
+
+		// Remove the table
+		if ($this->hasForeignKeyOnPersistentLocks) {
+			$this->db->dropTable('persistent_locks');
+		}
+		$this->db->dropTable('accounts');
+	}
+
+	/**
+	 * @return bool
+	 */
+	protected function shouldRun() {
+		$schema = $this->db->createSchema();
+		$prefix = $this->config->getSystemValueString('dbtableprefix', 'oc_');
+
+		$tableName = $prefix . 'accounts';
+		if (!$schema->hasTable($tableName)) {
+			return false;
+		}
+
+		$table = $schema->getTable($tableName);
+		if (!$table->hasColumn('user_id')) {
+			return false;
+		}
+
+		if ($schema->hasTable($prefix . 'persistent_locks')) {
+			$locksTable = $schema->getTable($prefix . 'persistent_locks');
+			$foreignKeys = $locksTable->getForeignKeys();
+			foreach ($foreignKeys as $foreignKey) {
+				if ($tableName === $foreignKey->getForeignTableName()) {
+					$this->hasForeignKeyOnPersistentLocks = true;
+				}
+			}
+		}
+
+		return true;
+	}
+
+	/**
+	 * @param int $offset
+	 * @return int Number of copied users
+	 */
+	protected function runStep($offset) {
+		$query = $this->db->getQueryBuilder();
+		$query->select('*')
+			->from('accounts')
+			->orderBy('id')
+			->setMaxResults(self::BATCH_SIZE);
+
+		if ($offset > 0) {
+			$query->setFirstResult($offset);
+		}
+
+		$result = $query->execute();
+
+		$update = $this->db->getQueryBuilder();
+		$update->update('users')
+			->set('displayname', $update->createParameter('displayname'))
+			->where($update->expr()->eq('uid', $update->createParameter('userid')));
+
+		$updatedUsers = 0;
+		while ($row = $result->fetch()) {
+			try {
+				$this->migrateUserInfo($update, $row);
+			} catch (PreConditionNotMetException $e) {
+				// Ignore and continue
+			} catch (\UnexpectedValueException $e) {
+				// Ignore and continue
+			}
+			$updatedUsers++;
+		}
+		$result->closeCursor();
+
+		return $updatedUsers;
+	}
+
+	/**
+	 * @param IQueryBuilder $update
+	 * @param array $userdata
+	 * @throws PreConditionNotMetException
+	 * @throws \UnexpectedValueException
+	 */
+	protected function migrateUserInfo(IQueryBuilder $update, $userdata) {
+		$state = (int) $userdata['state'];
+		if ($state === 3) {
+			// Deleted user, ignore
+			return;
+		}
+
+		if ($userdata['email'] !== null) {
+			$this->config->setUserValue($userdata['user_id'], 'settings', 'email', $userdata['email']);
+		}
+		if ($userdata['quota'] !== null) {
+			$this->config->setUserValue($userdata['user_id'], 'files', 'quota', $userdata['quota']);
+		}
+		if ($userdata['last_login'] !== null) {
+			$this->config->setUserValue($userdata['user_id'], 'login', 'lastLogin', $userdata['last_login']);
+		}
+		if ($state === 1) {
+			$this->config->setUserValue($userdata['user_id'], 'core', 'enabled', 'true');
+		} elseif ($state === 2) {
+			$this->config->setUserValue($userdata['user_id'], 'core', 'enabled', 'false');
+		}
+
+		if ($userdata['display_name'] !== null) {
+			$update->setParameter('displayname', $userdata['display_name'])
+				->setParameter('userid', $userdata['user_id']);
+			$update->execute();
+		}
+	}
+}

wedding-pics/lib/private/Repair/Owncloud/UpdateLanguageCodes.php

@@ -0,0 +1,88 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Morris Jobke <hey@morrisjobke.de>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @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 OC\Repair\Owncloud;
+
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IConfig;
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class UpdateLanguageCodes implements IRepairStep {
+	/** @var IDBConnection */
+	private $connection;
+
+	/** @var IConfig */
+	private $config;
+
+	/**
+	 * @param IDBConnection $connection
+	 * @param IConfig $config
+	 */
+	public function __construct(IDBConnection $connection,
+		IConfig $config) {
+		$this->connection = $connection;
+		$this->config = $config;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function getName() {
+		return 'Repair language codes';
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function run(IOutput $output) {
+		$versionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0');
+
+		if (version_compare($versionFromBeforeUpdate, '12.0.0.13', '>')) {
+			return;
+		}
+
+		$languages = [
+			'bg_BG' => 'bg',
+			'cs_CZ' => 'cs',
+			'fi_FI' => 'fi',
+			'hu_HU' => 'hu',
+			'nb_NO' => 'nb',
+			'sk_SK' => 'sk',
+			'th_TH' => 'th',
+		];
+
+		foreach ($languages as $oldCode => $newCode) {
+			$qb = $this->connection->getQueryBuilder();
+
+			$affectedRows = $qb->update('preferences')
+				->set('configvalue', $qb->createNamedParameter($newCode))
+				->where($qb->expr()->eq('appid', $qb->createNamedParameter('core')))
+				->andWhere($qb->expr()->eq('configkey', $qb->createNamedParameter('lang')))
+				->andWhere($qb->expr()->eq('configvalue', $qb->createNamedParameter($oldCode), IQueryBuilder::PARAM_STR))
+				->execute();
+
+			$output->info('Changed ' . $affectedRows . ' setting(s) from "' . $oldCode . '" to "' . $newCode . '" in preferences table.');
+		}
+	}
+}

wedding-pics/lib/private/Repair/RemoveLinkShares.php

@@ -0,0 +1,241 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2019, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Daniel Kesselberg <mail@danielkesselberg.de>
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author John Molakvoæ <skjnldsv@protonmail.com>
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @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 OC\Repair;
+
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\DB\IResult;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IConfig;
+use OCP\IDBConnection;
+use OCP\IGroupManager;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+use OCP\Notification\IManager;
+
+class RemoveLinkShares implements IRepairStep {
+	/** @var IDBConnection */
+	private $connection;
+	/** @var IConfig */
+	private $config;
+	/** @var string[] */
+	private $userToNotify = [];
+	/** @var IGroupManager */
+	private $groupManager;
+	/** @var IManager */
+	private $notificationManager;
+	/** @var ITimeFactory */
+	private $timeFactory;
+
+	public function __construct(IDBConnection $connection,
+		IConfig $config,
+		IGroupManager $groupManager,
+		IManager $notificationManager,
+		ITimeFactory $timeFactory) {
+		$this->connection = $connection;
+		$this->config = $config;
+		$this->groupManager = $groupManager;
+		$this->notificationManager = $notificationManager;
+		$this->timeFactory = $timeFactory;
+	}
+
+
+	public function getName(): string {
+		return 'Remove potentially over exposing share links';
+	}
+
+	private function shouldRun(): bool {
+		$versionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0');
+
+		if (version_compare($versionFromBeforeUpdate, '14.0.11', '<')) {
+			return true;
+		}
+		if (version_compare($versionFromBeforeUpdate, '15.0.8', '<')) {
+			return true;
+		}
+		if (version_compare($versionFromBeforeUpdate, '16.0.0', '<=')) {
+			return true;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Delete the share
+	 *
+	 * @param int $id
+	 */
+	private function deleteShare(int $id): void {
+		$qb = $this->connection->getQueryBuilder();
+		$qb->delete('share')
+			->where($qb->expr()->eq('id', $qb->createNamedParameter($id)));
+		$qb->execute();
+	}
+
+	/**
+	 * Get the total of affected shares
+	 *
+	 * @return int
+	 */
+	private function getTotal(): int {
+		$subSubQuery = $this->connection->getQueryBuilder();
+		$subSubQuery->select('*')
+			->from('share')
+			->where($subSubQuery->expr()->isNotNull('parent'))
+			->andWhere($subSubQuery->expr()->eq('share_type', $subSubQuery->expr()->literal(3, IQueryBuilder::PARAM_INT)));
+
+		$subQuery = $this->connection->getQueryBuilder();
+		$subQuery->select('s1.id')
+			->from($subQuery->createFunction('(' . $subSubQuery->getSQL() . ')'), 's1')
+			->join(
+				's1', 'share', 's2',
+				$subQuery->expr()->eq('s1.parent', 's2.id')
+			)
+			->where($subQuery->expr()->orX(
+				$subQuery->expr()->eq('s2.share_type', $subQuery->expr()->literal(1, IQueryBuilder::PARAM_INT)),
+				$subQuery->expr()->eq('s2.share_type', $subQuery->expr()->literal(2, IQueryBuilder::PARAM_INT))
+			))
+			->andWhere($subQuery->expr()->eq('s1.item_source', 's2.item_source'));
+
+		$query = $this->connection->getQueryBuilder();
+		$query->select($query->func()->count('*', 'total'))
+			->from('share')
+			->where($query->expr()->in('id', $query->createFunction($subQuery->getSQL())));
+
+		$result = $query->execute();
+		$data = $result->fetch();
+		$result->closeCursor();
+
+		return (int) $data['total'];
+	}
+
+	/**
+	 * Get the cursor to fetch all the shares
+	 */
+	private function getShares(): IResult {
+		$subQuery = $this->connection->getQueryBuilder();
+		$subQuery->select('*')
+			->from('share')
+			->where($subQuery->expr()->isNotNull('parent'))
+			->andWhere($subQuery->expr()->eq('share_type', $subQuery->expr()->literal(3, IQueryBuilder::PARAM_INT)));
+
+		$query = $this->connection->getQueryBuilder();
+		$query->select('s1.id', 's1.uid_owner', 's1.uid_initiator')
+			->from($query->createFunction('(' . $subQuery->getSQL() . ')'), 's1')
+			->join(
+				's1', 'share', 's2',
+				$query->expr()->eq('s1.parent', 's2.id')
+			)
+			->where($query->expr()->orX(
+				$query->expr()->eq('s2.share_type', $query->expr()->literal(1, IQueryBuilder::PARAM_INT)),
+				$query->expr()->eq('s2.share_type', $query->expr()->literal(2, IQueryBuilder::PARAM_INT))
+			))
+			->andWhere($query->expr()->eq('s1.item_source', 's2.item_source'));
+		/** @var IResult $result */
+		$result = $query->execute();
+		return $result;
+	}
+
+	/**
+	 * Process a single share
+	 *
+	 * @param array $data
+	 */
+	private function processShare(array $data): void {
+		$id = $data['id'];
+
+		$this->addToNotify($data['uid_owner']);
+		$this->addToNotify($data['uid_initiator']);
+
+		$this->deleteShare((int)$id);
+	}
+
+	/**
+	 * Update list of users to notify
+	 *
+	 * @param string $uid
+	 */
+	private function addToNotify(string $uid): void {
+		if (!isset($this->userToNotify[$uid])) {
+			$this->userToNotify[$uid] = true;
+		}
+	}
+
+	/**
+	 * Send all notifications
+	 */
+	private function sendNotification(): void {
+		$time = $this->timeFactory->getDateTime();
+
+		$notification = $this->notificationManager->createNotification();
+		$notification->setApp('core')
+			->setDateTime($time)
+			->setObject('repair', 'exposing_links')
+			->setSubject('repair_exposing_links');
+
+		$users = array_keys($this->userToNotify);
+		foreach ($users as $user) {
+			$notification->setUser((string) $user);
+			$this->notificationManager->notify($notification);
+		}
+	}
+
+	private function repair(IOutput $output, int $total): void {
+		$output->startProgress($total);
+
+		$shareResult = $this->getShares();
+		while ($data = $shareResult->fetch()) {
+			$this->processShare($data);
+			$output->advance();
+		}
+		$output->finishProgress();
+		$shareResult->closeCursor();
+
+		// Notify all admins
+		$adminGroup = $this->groupManager->get('admin');
+		$adminUsers = $adminGroup->getUsers();
+		foreach ($adminUsers as $user) {
+			$this->addToNotify($user->getUID());
+		}
+
+		$output->info('Sending notifications to admins and affected users');
+		$this->sendNotification();
+	}
+
+	public function run(IOutput $output): void {
+		if ($this->shouldRun() === false || ($total = $this->getTotal()) === 0) {
+			$output->info('No need to remove link shares.');
+			return;
+		}
+
+		$output->info('Removing potentially over exposing link shares');
+		$this->repair($output, $total);
+		$output->info('Removed potentially over exposing link shares');
+	}
+}

wedding-pics/lib/private/Repair/RepairDavShares.php

@@ -0,0 +1,138 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2020 Arthur Schiwon <blizzz@arthur-schiwon.de>
+ *
+ * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
+ *
+ * @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 OC\Repair;
+
+use OCP\DB\Exception;
+use OCP\IConfig;
+use OCP\IDBConnection;
+use OCP\IGroupManager;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+use Psr\Log\LoggerInterface;
+use function strlen;
+use function substr;
+use function urldecode;
+use function urlencode;
+
+class RepairDavShares implements IRepairStep {
+	protected const GROUP_PRINCIPAL_PREFIX = 'principals/groups/';
+
+	/** @var IConfig */
+	private $config;
+	/** @var IDBConnection */
+	private $dbc;
+	/** @var IGroupManager */
+	private $groupManager;
+	/** @var LoggerInterface */
+	private $logger;
+	/** @var bool */
+	private $hintInvalidShares = false;
+
+	public function __construct(
+		IConfig $config,
+		IDBConnection $dbc,
+		IGroupManager $groupManager,
+		LoggerInterface $logger
+	) {
+		$this->config = $config;
+		$this->dbc = $dbc;
+		$this->groupManager = $groupManager;
+		$this->logger = $logger;
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getName() {
+		return 'Repair DAV shares';
+	}
+
+	protected function repairUnencodedGroupShares() {
+		$qb = $this->dbc->getQueryBuilder();
+		$qb->select(['id', 'principaluri'])
+			->from('dav_shares')
+			->where($qb->expr()->like('principaluri', $qb->createNamedParameter(self::GROUP_PRINCIPAL_PREFIX . '%')));
+
+		$updateQuery = $this->dbc->getQueryBuilder();
+		$updateQuery->update('dav_shares')
+			->set('principaluri', $updateQuery->createParameter('updatedPrincipalUri'))
+			->where($updateQuery->expr()->eq('id', $updateQuery->createParameter('shareId')));
+
+		$statement = $qb->execute();
+		while ($share = $statement->fetch()) {
+			$gid = substr($share['principaluri'], strlen(self::GROUP_PRINCIPAL_PREFIX));
+			$decodedGid = urldecode($gid);
+			$encodedGid = urlencode($gid);
+			if ($gid === $encodedGid
+				|| !$this->groupManager->groupExists($gid)
+				|| ($gid !== $decodedGid && $this->groupManager->groupExists($decodedGid))
+			) {
+				$this->hintInvalidShares = $this->hintInvalidShares || $gid !== $encodedGid;
+				continue;
+			}
+
+			// Repair when
+			// + the group name needs encoding
+			// + AND it is not encoded yet
+			// + AND there are no ambivalent groups
+
+			try {
+				$fixedPrincipal = self::GROUP_PRINCIPAL_PREFIX . $encodedGid;
+				$logParameters = [
+					'app' => 'core',
+					'id' => $share['id'],
+					'old' => $share['principaluri'],
+					'new' => $fixedPrincipal,
+				];
+				$updateQuery
+					->setParameter('updatedPrincipalUri', $fixedPrincipal)
+					->setParameter('shareId', $share['id'])
+					->execute();
+				$this->logger->info('Repaired principal for dav share {id} from {old} to {new}', $logParameters);
+			} catch (Exception $e) {
+				$logParameters['message'] = $e->getMessage();
+				$logParameters['exception'] = $e;
+				$this->logger->info('Could not repair principal for dav share {id} from {old} to {new}: {message}', $logParameters);
+			}
+		}
+		return true;
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function run(IOutput $output) {
+		$versionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0');
+		if (version_compare($versionFromBeforeUpdate, '20.0.8', '<')
+			&& $this->repairUnencodedGroupShares()
+		) {
+			$output->info('Repaired DAV group shares');
+			if ($this->hintInvalidShares) {
+				$output->info('Invalid shares might be left in the database, running "occ dav:remove-invalid-shares" can remove them.');
+			}
+		}
+	}
+}

wedding-pics/lib/private/Repair/RepairInvalidShares.php

@@ -0,0 +1,120 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ *
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author Lukas Reschke <lukas@statuscode.ch>
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ * @author Vincent Petry <vincent@nextcloud.com>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair;
+
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+/**
+ * Repairs shares with invalid data
+ */
+class RepairInvalidShares implements IRepairStep {
+	public const CHUNK_SIZE = 200;
+
+	/** @var \OCP\IConfig */
+	protected $config;
+
+	/** @var \OCP\IDBConnection */
+	protected $connection;
+
+	/**
+	 * @param \OCP\IConfig $config
+	 * @param \OCP\IDBConnection $connection
+	 */
+	public function __construct($config, $connection) {
+		$this->connection = $connection;
+		$this->config = $config;
+	}
+
+	public function getName() {
+		return 'Repair invalid shares';
+	}
+
+	/**
+	 * Adjust file share permissions
+	 */
+	private function adjustFileSharePermissions(IOutput $out) {
+		$mask = \OCP\Constants::PERMISSION_READ | \OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_SHARE;
+		$builder = $this->connection->getQueryBuilder();
+
+		$permsFunc = $builder->expr()->bitwiseAnd('permissions', $mask);
+		$builder
+			->update('share')
+			->set('permissions', $permsFunc)
+			->where($builder->expr()->eq('item_type', $builder->expr()->literal('file')))
+			->andWhere($builder->expr()->neq('permissions', $permsFunc));
+
+		$updatedEntries = $builder->execute();
+		if ($updatedEntries > 0) {
+			$out->info('Fixed file share permissions for ' . $updatedEntries . ' shares');
+		}
+	}
+
+	/**
+	 * Remove shares where the parent share does not exist anymore
+	 */
+	private function removeSharesNonExistingParent(IOutput $out) {
+		$deletedEntries = 0;
+
+		$query = $this->connection->getQueryBuilder();
+		$query->select('s1.parent')
+			->from('share', 's1')
+			->where($query->expr()->isNotNull('s1.parent'))
+				->andWhere($query->expr()->isNull('s2.id'))
+			->leftJoin('s1', 'share', 's2', $query->expr()->eq('s1.parent', 's2.id'))
+			->groupBy('s1.parent')
+			->setMaxResults(self::CHUNK_SIZE);
+
+		$deleteQuery = $this->connection->getQueryBuilder();
+		$deleteQuery->delete('share')
+			->where($deleteQuery->expr()->eq('parent', $deleteQuery->createParameter('parent')));
+
+		$deletedInLastChunk = self::CHUNK_SIZE;
+		while ($deletedInLastChunk === self::CHUNK_SIZE) {
+			$deletedInLastChunk = 0;
+			$result = $query->execute();
+			while ($row = $result->fetch()) {
+				$deletedInLastChunk++;
+				$deletedEntries += $deleteQuery->setParameter('parent', (int) $row['parent'])
+					->execute();
+			}
+			$result->closeCursor();
+		}
+
+		if ($deletedEntries) {
+			$out->info('Removed ' . $deletedEntries . ' shares where the parent did not exist');
+		}
+	}
+
+	public function run(IOutput $out) {
+		$ocVersionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0');
+		if (version_compare($ocVersionFromBeforeUpdate, '12.0.0.11', '<')) {
+			$this->adjustFileSharePermissions($out);
+		}
+
+		$this->removeSharesNonExistingParent($out);
+	}
+}

wedding-pics/lib/private/Repair/RepairMimeTypes.php

@@ -0,0 +1,314 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ *
+ * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author Julius Härtl <jus@bitgrid.net>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author nik gaffney <nik@fo.am>
+ * @author Olivier Paroz <github@oparoz.com>
+ * @author Rello <Rello@users.noreply.github.com>
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ * @author Stefan Weil <sw@weilnetz.de>
+ * @author Thomas Ebert <thomas.ebert@usability.de>
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ * @author Vincent Petry <vincent@nextcloud.com>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Repair;
+
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IConfig;
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class RepairMimeTypes implements IRepairStep {
+	/** @var IConfig */
+	protected $config;
+	/** @var IDBConnection */
+	protected $connection;
+
+	/** @var int */
+	protected $folderMimeTypeId;
+
+	public function __construct(IConfig $config,
+		IDBConnection $connection) {
+		$this->config = $config;
+		$this->connection = $connection;
+	}
+
+	public function getName() {
+		return 'Repair mime types';
+	}
+
+	private function updateMimetypes($updatedMimetypes) {
+		$query = $this->connection->getQueryBuilder();
+		$query->select('id')
+			->from('mimetypes')
+			->where($query->expr()->eq('mimetype', $query->createParameter('mimetype'), IQueryBuilder::PARAM_INT));
+		$insert = $this->connection->getQueryBuilder();
+		$insert->insert('mimetypes')
+			->setValue('mimetype', $insert->createParameter('mimetype'));
+
+		if (empty($this->folderMimeTypeId)) {
+			$query->setParameter('mimetype', 'httpd/unix-directory');
+			$result = $query->execute();
+			$this->folderMimeTypeId = (int)$result->fetchOne();
+			$result->closeCursor();
+		}
+
+		$update = $this->connection->getQueryBuilder();
+		$update->update('filecache')
+			->set('mimetype', $update->createParameter('mimetype'))
+			->where($update->expr()->neq('mimetype', $update->createParameter('mimetype'), IQueryBuilder::PARAM_INT))
+			->andWhere($update->expr()->neq('mimetype', $update->createParameter('folder'), IQueryBuilder::PARAM_INT))
+			->andWhere($update->expr()->iLike('name', $update->createParameter('name')))
+			->setParameter('folder', $this->folderMimeTypeId);
+
+		$count = 0;
+		foreach ($updatedMimetypes as $extension => $mimetype) {
+			// get target mimetype id
+			$query->setParameter('mimetype', $mimetype);
+			$result = $query->execute();
+			$mimetypeId = (int)$result->fetchOne();
+			$result->closeCursor();
+
+			if (!$mimetypeId) {
+				// insert mimetype
+				$insert->setParameter('mimetype', $mimetype);
+				$insert->execute();
+				$mimetypeId = $insert->getLastInsertId();
+			}
+
+			// change mimetype for files with x extension
+			$update->setParameter('mimetype', $mimetypeId)
+				->setParameter('name', '%' . $this->connection->escapeLikeParameter('.' . $extension));
+			$count += $update->execute();
+		}
+
+		return $count;
+	}
+
+	private function introduceAsciidocType() {
+		$updatedMimetypes = [
+			'adoc' => 'text/asciidoc',
+			'asciidoc' => 'text/asciidoc',
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceImageTypes() {
+		$updatedMimetypes = [
+			'jp2' => 'image/jp2',
+			'webp' => 'image/webp',
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceWindowsProgramTypes() {
+		$updatedMimetypes = [
+			'htaccess' => 'text/plain',
+			'bat' => 'application/x-msdos-program',
+			'cmd' => 'application/cmd',
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceLocationTypes() {
+		$updatedMimetypes = [
+			'gpx' => 'application/gpx+xml',
+			'kml' => 'application/vnd.google-earth.kml+xml',
+			'kmz' => 'application/vnd.google-earth.kmz',
+			'tcx' => 'application/vnd.garmin.tcx+xml',
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceInternetShortcutTypes() {
+		$updatedMimetypes = [
+			'url' => 'application/internet-shortcut',
+			'webloc' => 'application/internet-shortcut'
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceStreamingTypes() {
+		$updatedMimetypes = [
+			'm3u' => 'audio/mpegurl',
+			'm3u8' => 'audio/mpegurl',
+			'pls' => 'audio/x-scpls'
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceVisioTypes() {
+		$updatedMimetypes = [
+			'vsdm' => 'application/vnd.visio',
+			'vsdx' => 'application/vnd.visio',
+			'vssm' => 'application/vnd.visio',
+			'vssx' => 'application/vnd.visio',
+			'vstm' => 'application/vnd.visio',
+			'vstx' => 'application/vnd.visio',
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceComicbookTypes() {
+		$updatedMimetypes = [
+			'cb7' => 'application/comicbook+7z',
+			'cba' => 'application/comicbook+ace',
+			'cbr' => 'application/comicbook+rar',
+			'cbt' => 'application/comicbook+tar',
+			'cbtc' => 'application/comicbook+truecrypt',
+			'cbz' => 'application/comicbook+zip',
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceOpenDocumentTemplates() {
+		$updatedMimetypes = [
+			'ott' => 'application/vnd.oasis.opendocument.text-template',
+			'ots' => 'application/vnd.oasis.opendocument.spreadsheet-template',
+			'otp' => 'application/vnd.oasis.opendocument.presentation-template',
+			'otg' => 'application/vnd.oasis.opendocument.graphics-template',
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceFlatOpenDocumentType() {
+		$updatedMimetypes = [
+			"fodt" => "application/vnd.oasis.opendocument.text-flat-xml",
+			"fods" => "application/vnd.oasis.opendocument.spreadsheet-flat-xml",
+			"fodg" => "application/vnd.oasis.opendocument.graphics-flat-xml",
+			"fodp" => "application/vnd.oasis.opendocument.presentation-flat-xml",
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceOrgModeType() {
+		$updatedMimetypes = [
+			'org' => 'text/org'
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceOnlyofficeFormType() {
+		$updatedMimetypes = [
+			"oform" => "application/vnd.openxmlformats-officedocument.wordprocessingml.document.oform",
+			"docxf" => "application/vnd.openxmlformats-officedocument.wordprocessingml.document.docxf",
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceEnhancedMetafileFormatType() {
+		$updatedMimetypes = [
+			'emf' => 'image/emf',
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	private function introduceEmlAndMsgFormatType() {
+		$updatedMimetypes = [
+			'eml' => 'message/rfc822',
+			'msg' => 'application/vnd.ms-outlook',
+		];
+
+		return $this->updateMimetypes($updatedMimetypes);
+	}
+
+	/**
+	 * Fix mime types
+	 */
+	public function run(IOutput $out) {
+		$ocVersionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0');
+
+		// NOTE TO DEVELOPERS: when adding new mime types, please make sure to
+		// add a version comparison to avoid doing it every time
+
+		if (version_compare($ocVersionFromBeforeUpdate, '12.0.0.14', '<') && $this->introduceImageTypes()) {
+			$out->info('Fixed image mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '12.0.0.13', '<') && $this->introduceWindowsProgramTypes()) {
+			$out->info('Fixed windows program mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '13.0.0.0', '<') && $this->introduceLocationTypes()) {
+			$out->info('Fixed geospatial mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '13.0.0.3', '<') && $this->introduceInternetShortcutTypes()) {
+			$out->info('Fixed internet-shortcut mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '13.0.0.6', '<') && $this->introduceStreamingTypes()) {
+			$out->info('Fixed streaming mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '14.0.0.8', '<') && $this->introduceVisioTypes()) {
+			$out->info('Fixed visio mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '14.0.0.10', '<') && $this->introduceComicbookTypes()) {
+			$out->info('Fixed comicbook mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '20.0.0.5', '<') && $this->introduceOpenDocumentTemplates()) {
+			$out->info('Fixed OpenDocument template mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '21.0.0.7', '<') && $this->introduceOrgModeType()) {
+			$out->info('Fixed orgmode mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '23.0.0.2', '<') && $this->introduceFlatOpenDocumentType()) {
+			$out->info('Fixed Flat OpenDocument mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '25.0.0.2', '<') && $this->introduceOnlyofficeFormType()) {
+			$out->info('Fixed ONLYOFFICE Forms OpenXML mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '26.0.0.1', '<') && $this->introduceAsciidocType()) {
+			$out->info('Fixed AsciiDoc mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '28.0.0.5', '<') && $this->introduceEnhancedMetafileFormatType()) {
+			$out->info('Fixed Enhanced Metafile Format mime types');
+		}
+
+		if (version_compare($ocVersionFromBeforeUpdate, '28.0.0.8', '<') && $this->introduceEmlAndMsgFormatType()) {
+			$out->info('Fixed eml and msg mime type');
+		}
+	}
+}