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diff --git a/lib/private/Repair/Owncloud/MoveAvatarsBackgroundJob.php b/lib/private/Repair/Owncloud/MoveAvatarsBackgroundJob.php
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+<?php
+/**
+ * @copyright 2016 Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ * @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\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;
+
+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 ($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);
+ }
+}