migrate therinaldos.com data

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.');
+		}
+	}
+}