406 lines
12 KiB
PHP
406 lines
12 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2022 Varun Patil <radialapps@gmail.com>
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* @author Varun Patil <radialapps@gmail.com>
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* @license AGPL-3.0-or-later
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace OCA\Memories\Controller;
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use OCA\Memories\AppInfo\Application;
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use OCA\Memories\Db\TimelineQuery;
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use OCA\Memories\Db\TimelineRoot;
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use OCA\Memories\Exif;
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use OCP\App\IAppManager;
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use OCP\AppFramework\Controller;
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use OCP\AppFramework\Http;
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use OCP\AppFramework\Http\DataDisplayResponse;
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use OCP\AppFramework\Http\JSONResponse;
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use OCP\Files\File;
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use OCP\Files\Folder;
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use OCP\Files\IRootFolder;
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use OCP\IConfig;
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use OCP\IDBConnection;
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use OCP\IRequest;
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use OCP\IUserSession;
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class ApiBase extends Controller
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{
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protected IConfig $config;
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protected IUserSession $userSession;
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protected IRootFolder $rootFolder;
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protected IAppManager $appManager;
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protected TimelineQuery $timelineQuery;
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protected IDBConnection $connection;
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public function __construct(
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IRequest $request,
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IConfig $config,
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IUserSession $userSession,
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IDBConnection $connection,
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IRootFolder $rootFolder,
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IAppManager $appManager
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) {
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parent::__construct(Application::APPNAME, $request);
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$this->config = $config;
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$this->userSession = $userSession;
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$this->connection = $connection;
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$this->rootFolder = $rootFolder;
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$this->appManager = $appManager;
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$this->timelineQuery = new TimelineQuery($connection);
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}
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/** Get logged in user's UID or throw exception */
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protected function getUID(): string
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{
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$user = $this->userSession->getUser();
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if ($this->getShareToken()) {
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$user = null;
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} elseif (null === $user) {
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throw new \Exception('User not logged in');
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}
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return $user ? $user->getUID() : '';
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}
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/** Get the TimelineRoot object relevant to the request */
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protected function getRequestRoot()
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{
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$user = $this->userSession->getUser();
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$root = new TimelineRoot();
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// Albums have no folder
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if ($this->albumsIsEnabled() && $this->request->getParam('album')) {
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if (null !== $user) {
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return $root;
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}
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if (($token = $this->getShareToken()) && $this->timelineQuery->getAlbumByLink($token)) {
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return $root;
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}
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}
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// Public shared folder
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if ($share = $this->getShareNode()) { // can throw
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$root->addFolder($share);
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return $root;
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}
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// Anything else needs a user
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if (null === $user) {
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throw new \Exception('User not logged in');
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}
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$uid = $user->getUID();
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$folder = null;
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$folderPath = $this->request->getParam('folder');
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$userFolder = $this->rootFolder->getUserFolder($uid);
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try {
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if (null !== $folderPath) {
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$folder = $userFolder->get(Exif::removeExtraSlash($folderPath));
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$root->addFolder($folder);
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} else {
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$timelinePath = $this->request->getParam('timelinePath', Exif::getPhotosPath($this->config, $uid));
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$timelinePath = Exif::removeExtraSlash($timelinePath);
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// Multiple timeline path support
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$paths = explode(';', $timelinePath);
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foreach ($paths as &$path) {
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$folder = $userFolder->get(trim($path));
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$root->addFolder($folder);
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}
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$root->addMountPoints();
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}
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} catch (\OCP\Files\NotFoundException $e) {
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$msg = $e->getMessage();
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throw new \Exception("Folder not found: {$msg}");
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}
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return $root;
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}
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/**
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* Get a file with ID for the current user.
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*/
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protected function getUserFile(int $fileId): ?File
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{
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// Don't check self for share token
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if ($this->getShareToken()) {
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return $this->getShareFile($fileId);
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}
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// Check both user folder and album
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return $this->getUserFolderFile($fileId) ??
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$this->getAlbumFile($fileId);
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}
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/**
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* Get a file with ID from user's folder.
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*/
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protected function getUserFolderFile(int $id): ?File
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{
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$user = $this->userSession->getUser();
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if (null === $user) {
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return null;
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}
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$userFolder = $this->rootFolder->getUserFolder($user->getUID());
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return $this->getOneFileFromFolder($userFolder, $id);
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}
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/**
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* Get a file with ID from an album.
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*/
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protected function getAlbumFile(int $id): ?File
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{
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$user = $this->userSession->getUser();
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if (null === $user) {
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return null;
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}
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$uid = $user->getUID();
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$owner = $this->timelineQuery->albumHasUserFile($uid, $id);
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if (!$owner) {
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return null;
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}
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$folder = $this->rootFolder->getUserFolder($owner);
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return $this->getOneFileFromFolder($folder, $id);
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}
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/**
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* Get a file with ID from a public share.
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*
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* @param int $fileId
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*/
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protected function getShareFile(int $id): ?File
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{
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try {
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// Album share
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if ($this->request->getParam('album')) {
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$album = $this->timelineQuery->getAlbumByLink($this->getShareToken());
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if (null === $album) {
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return null;
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}
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$owner = $this->timelineQuery->albumHasFile((int) $album['album_id'], $id);
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if (!$owner) {
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return null;
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}
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$folder = $this->rootFolder->getUserFolder($owner);
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return $this->getOneFileFromFolder($folder, $id);
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}
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// Folder share
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if ($share = $this->getShareNode()) {
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return $this->getOneFileFromFolder($share, $id);
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}
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} catch (\Exception $e) {
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}
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return null;
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}
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protected function isRecursive()
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{
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return null === $this->request->getParam('folder') || $this->request->getParam('recursive');
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}
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protected function isArchive()
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{
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return null !== $this->request->getParam('archive');
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}
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protected function isMonthView()
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{
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return null !== $this->request->getParam('monthView');
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}
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protected function isReverse()
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{
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return null !== $this->request->getParam('reverse');
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}
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protected function getShareToken()
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{
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return $this->request->getParam('token');
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}
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protected function getShareObject()
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{
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// Get token from request
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$token = $this->getShareToken();
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if (null === $token) {
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return null;
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}
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// Get share by token
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$share = \OC::$server->get(\OCP\Share\IManager::class)->getShareByToken($token);
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if (!PublicController::validateShare($share)) {
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return null;
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}
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// Check if share is password protected
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if (($password = $share->getPassword()) !== null) {
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$session = \OC::$server->get(\OCP\ISession::class);
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// https://github.com/nextcloud/server/blob/0447b53bda9fe95ea0cbed765aa332584605d652/lib/public/AppFramework/PublicShareController.php#L119
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if (
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$session->get('public_link_authenticated_token') !== $token
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|| $session->get('public_link_authenticated_password_hash') !== $password
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) {
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throw new \Exception('Share is password protected and user is not authenticated');
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}
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}
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return $share;
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}
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protected function getShareNode()
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{
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$share = $this->getShareObject();
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if (null === $share) {
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return null;
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}
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// Get node from share
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$node = $share->getNode(); // throws exception if not found
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if (!$node instanceof Folder || !$node->isReadable() || !$node->isShareable()) {
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throw new \Exception('Share not found or invalid');
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}
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return $node;
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}
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/**
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* Given a list of file ids, return the first preview image possible.
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*/
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protected function getPreviewFromImageList(array &$list)
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{
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// Get preview manager
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$previewManager = \OC::$server->get(\OCP\IPreview::class);
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// Try to get a preview
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$userFolder = $this->rootFolder->getUserFolder($this->getUID());
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foreach ($list as &$img) {
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// Get the file
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$files = $userFolder->getById($img);
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if (0 === \count($files)) {
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continue;
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}
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// Check read permission
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if (!($files[0]->getPermissions() & \OCP\Constants::PERMISSION_READ)) {
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continue;
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}
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// Get preview image
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try {
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$preview = $previewManager->getPreview($files[0], 512, 512, false);
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$response = new DataDisplayResponse($preview->getContent(), Http::STATUS_OK, [
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'Content-Type' => $preview->getMimeType(),
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]);
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$response->cacheFor(3600 * 24, false, false);
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return $response;
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} catch (\Exception $e) {
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continue;
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}
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}
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return new JSONResponse([], Http::STATUS_NOT_FOUND);
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}
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/**
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* Check if albums are enabled for this user.
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*/
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protected function albumsIsEnabled(): bool
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{
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return \OCA\Memories\Util::albumsIsEnabled($this->appManager);
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}
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/**
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* Check if tags is enabled for this user.
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*/
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protected function tagsIsEnabled(): bool
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{
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return \OCA\Memories\Util::tagsIsEnabled($this->appManager);
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}
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/**
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* Check if recognize is enabled for this user.
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*/
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protected function recognizeIsEnabled(): bool
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{
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return \OCA\Memories\Util::recognizeIsEnabled($this->appManager);
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}
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// Check if facerecognition is installed and enabled for this user.
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protected function facerecognitionIsInstalled(): bool
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{
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return \OCA\Memories\Util::facerecognitionIsInstalled($this->appManager);
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}
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/**
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* Check if facerecognition is enabled for this user.
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*/
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protected function facerecognitionIsEnabled(): bool
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{
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return \OCA\Memories\Util::facerecognitionIsEnabled($this->config, $this->getUID());
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}
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/**
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* Check if geolocation is enabled for this user.
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*/
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protected function placesIsEnabled(): bool
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{
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return \OCA\Memories\Util::placesGISType() !== 0;
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}
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/**
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* Helper to get one file or null from a fiolder.
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*/
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private function getOneFileFromFolder(Folder $folder, int $id): ?File
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{
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// Check for permissions and get numeric Id
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$file = $folder->getById($id);
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if (0 === \count($file)) {
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return null;
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}
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// Check if node is a file
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if (!$file[0] instanceof File) {
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return null;
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}
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// Check read permission
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if (!($file[0]->getPermissions() & \OCP\Constants::PERMISSION_READ)) {
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return null;
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}
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return $file[0];
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}
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}
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