502 lines
15 KiB
PHP
502 lines
15 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
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*
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* @author Joas Schilling <coding@schilljs.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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*
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* @license GNU AGPL version 3 or any later version
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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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*/
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namespace OCA\Files\Activity;
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use OCP\Activity\IEvent;
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use OCP\Activity\IEventMerger;
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use OCP\Activity\IManager;
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use OCP\Activity\IProvider;
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use OCP\Files\Folder;
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use OCP\Files\InvalidPathException;
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use OCP\Files\IRootFolder;
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use OCP\Files\Node;
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use OCP\Files\NotFoundException;
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use OCP\IL10N;
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use OCP\IURLGenerator;
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use OCP\IUser;
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use OCP\IUserManager;
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use OCP\L10N\IFactory;
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class Provider implements IProvider {
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/** @var IFactory */
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protected $languageFactory;
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/** @var IL10N */
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protected $l;
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/** @var IL10N */
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protected $activityLang;
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/** @var IURLGenerator */
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protected $url;
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/** @var IManager */
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protected $activityManager;
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/** @var IUserManager */
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protected $userManager;
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/** @var IRootFolder */
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protected $rootFolder;
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/** @var IEventMerger */
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protected $eventMerger;
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/** @var string[] cached displayNames - key is the UID and value the displayname */
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protected $displayNames = [];
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protected $fileIsEncrypted = false;
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/**
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* @param IFactory $languageFactory
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* @param IURLGenerator $url
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* @param IManager $activityManager
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* @param IUserManager $userManager
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* @param IRootFolder $rootFolder
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* @param IEventMerger $eventMerger
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*/
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public function __construct(IFactory $languageFactory, IURLGenerator $url, IManager $activityManager, IUserManager $userManager, IRootFolder $rootFolder, IEventMerger $eventMerger) {
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$this->languageFactory = $languageFactory;
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$this->url = $url;
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$this->activityManager = $activityManager;
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$this->userManager = $userManager;
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$this->rootFolder = $rootFolder;
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$this->eventMerger = $eventMerger;
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}
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/**
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* @param string $language
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* @param IEvent $event
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* @param IEvent|null $previousEvent
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* @return IEvent
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* @throws \InvalidArgumentException
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* @since 11.0.0
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*/
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public function parse($language, IEvent $event, IEvent $previousEvent = null) {
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if ($event->getApp() !== 'files') {
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throw new \InvalidArgumentException();
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}
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$this->l = $this->languageFactory->get('files', $language);
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$this->activityLang = $this->languageFactory->get('activity', $language);
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if ($this->activityManager->isFormattingFilteredObject()) {
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try {
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return $this->parseShortVersion($event, $previousEvent);
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} catch (\InvalidArgumentException $e) {
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// Ignore and simply use the long version...
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}
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}
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return $this->parseLongVersion($event, $previousEvent);
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}
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protected function setIcon(IEvent $event, string $icon, string $app = 'files') {
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if ($this->activityManager->getRequirePNG()) {
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$event->setIcon($this->url->getAbsoluteURL($this->url->imagePath($app, $icon . '.png')));
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} else {
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$event->setIcon($this->url->getAbsoluteURL($this->url->imagePath($app, $icon . '.svg')));
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}
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}
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/**
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* @param IEvent $event
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* @param IEvent|null $previousEvent
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* @return IEvent
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* @throws \InvalidArgumentException
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* @since 11.0.0
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*/
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public function parseShortVersion(IEvent $event, IEvent $previousEvent = null) {
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$parsedParameters = $this->getParameters($event);
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if ($event->getSubject() === 'created_by') {
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$subject = $this->l->t('Created by {user}');
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$this->setIcon($event, 'add-color');
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} else if ($event->getSubject() === 'changed_by') {
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$subject = $this->l->t('Changed by {user}');
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$this->setIcon($event, 'change');
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} else if ($event->getSubject() === 'deleted_by') {
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$subject = $this->l->t('Deleted by {user}');
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$this->setIcon($event, 'delete-color');
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} else if ($event->getSubject() === 'restored_by') {
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$subject = $this->l->t('Restored by {user}');
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$this->setIcon($event, 'actions/history', 'core');
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} else if ($event->getSubject() === 'renamed_by') {
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$subject = $this->l->t('Renamed by {user}');
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$this->setIcon($event, 'change');
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} else if ($event->getSubject() === 'moved_by') {
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$subject = $this->l->t('Moved by {user}');
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$this->setIcon($event, 'change');
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} else {
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throw new \InvalidArgumentException();
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}
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if (!isset($parsedParameters['user'])) {
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// External user via public link share
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$subject = str_replace('{user}', $this->activityLang->t('"remote user"'), $subject);
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}
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$this->setSubjects($event, $subject, $parsedParameters);
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return $this->eventMerger->mergeEvents('user', $event, $previousEvent);
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}
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/**
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* @param IEvent $event
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* @param IEvent|null $previousEvent
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* @return IEvent
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* @throws \InvalidArgumentException
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* @since 11.0.0
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*/
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public function parseLongVersion(IEvent $event, IEvent $previousEvent = null) {
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$this->fileIsEncrypted = false;
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$parsedParameters = $this->getParameters($event);
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if ($event->getSubject() === 'created_self') {
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$subject = $this->l->t('You created {file}');
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if ($this->fileIsEncrypted) {
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$subject = $this->l->t('You created an encrypted file in {file}');
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}
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$this->setIcon($event, 'add-color');
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} else if ($event->getSubject() === 'created_by') {
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$subject = $this->l->t('{user} created {file}');
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if ($this->fileIsEncrypted) {
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$subject = $this->l->t('{user} created an encrypted file in {file}');
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}
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$this->setIcon($event, 'add-color');
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} else if ($event->getSubject() === 'created_public') {
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$subject = $this->l->t('{file} was created in a public folder');
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$this->setIcon($event, 'add-color');
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} else if ($event->getSubject() === 'changed_self') {
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$subject = $this->l->t('You changed {file}');
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if ($this->fileIsEncrypted) {
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$subject = $this->l->t('You changed an encrypted file in {file}');
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}
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$this->setIcon($event, 'change');
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} else if ($event->getSubject() === 'changed_by') {
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$subject = $this->l->t('{user} changed {file}');
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if ($this->fileIsEncrypted) {
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$subject = $this->l->t('{user} changed an encrypted file in {file}');
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}
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$this->setIcon($event, 'change');
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} else if ($event->getSubject() === 'deleted_self') {
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$subject = $this->l->t('You deleted {file}');
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if ($this->fileIsEncrypted) {
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$subject = $this->l->t('You deleted an encrypted file in {file}');
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}
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$this->setIcon($event, 'delete-color');
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} else if ($event->getSubject() === 'deleted_by') {
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$subject = $this->l->t('{user} deleted {file}');
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if ($this->fileIsEncrypted) {
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$subject = $this->l->t('{user} deleted an encrypted file in {file}');
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}
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$this->setIcon($event, 'delete-color');
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} else if ($event->getSubject() === 'restored_self') {
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$subject = $this->l->t('You restored {file}');
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$this->setIcon($event, 'actions/history', 'core');
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} else if ($event->getSubject() === 'restored_by') {
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$subject = $this->l->t('{user} restored {file}');
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$this->setIcon($event, 'actions/history', 'core');
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} else if ($event->getSubject() === 'renamed_self') {
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$subject = $this->l->t('You renamed {oldfile} to {newfile}');
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$this->setIcon($event, 'change');
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} else if ($event->getSubject() === 'renamed_by') {
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$subject = $this->l->t('{user} renamed {oldfile} to {newfile}');
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$this->setIcon($event, 'change');
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} else if ($event->getSubject() === 'moved_self') {
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$subject = $this->l->t('You moved {oldfile} to {newfile}');
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$this->setIcon($event, 'change');
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} else if ($event->getSubject() === 'moved_by') {
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$subject = $this->l->t('{user} moved {oldfile} to {newfile}');
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$this->setIcon($event, 'change');
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} else {
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throw new \InvalidArgumentException();
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}
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if ($this->fileIsEncrypted) {
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$event->setSubject($event->getSubject() . '_enc', $event->getSubjectParameters());
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}
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if (!isset($parsedParameters['user'])) {
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// External user via public link share
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$subject = str_replace('{user}', $this->activityLang->t('"remote user"'), $subject);
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}
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$this->setSubjects($event, $subject, $parsedParameters);
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$event = $this->eventMerger->mergeEvents('file', $event, $previousEvent);
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if ($event->getChildEvent() === null) {
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// Couldn't group by file, maybe we can group by user
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$event = $this->eventMerger->mergeEvents('user', $event, $previousEvent);
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}
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return $event;
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}
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protected function setSubjects(IEvent $event, $subject, array $parameters) {
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$placeholders = $replacements = [];
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foreach ($parameters as $placeholder => $parameter) {
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$placeholders[] = '{' . $placeholder . '}';
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if ($parameter['type'] === 'file') {
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$replacements[] = $parameter['path'];
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} else {
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$replacements[] = $parameter['name'];
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}
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}
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$event->setParsedSubject(str_replace($placeholders, $replacements, $subject))
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->setRichSubject($subject, $parameters);
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}
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/**
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* @param IEvent $event
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* @return array
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* @throws \InvalidArgumentException
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*/
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protected function getParameters(IEvent $event) {
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$parameters = $event->getSubjectParameters();
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switch ($event->getSubject()) {
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case 'created_self':
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case 'created_public':
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case 'changed_self':
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case 'deleted_self':
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case 'restored_self':
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return [
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'file' => $this->getFile($parameters[0], $event),
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];
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case 'created_by':
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case 'changed_by':
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case 'deleted_by':
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case 'restored_by':
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if ($parameters[1] === '') {
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// External user via public link share
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return [
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'file' => $this->getFile($parameters[0], $event),
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];
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}
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return [
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'file' => $this->getFile($parameters[0], $event),
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'user' => $this->getUser($parameters[1]),
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];
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case 'renamed_self':
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case 'moved_self':
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return [
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'newfile' => $this->getFile($parameters[0]),
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'oldfile' => $this->getFile($parameters[1]),
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];
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case 'renamed_by':
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case 'moved_by':
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if ($parameters[1] === '') {
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// External user via public link share
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return [
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'newfile' => $this->getFile($parameters[0]),
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'oldfile' => $this->getFile($parameters[2]),
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];
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}
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return [
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'newfile' => $this->getFile($parameters[0]),
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'user' => $this->getUser($parameters[1]),
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'oldfile' => $this->getFile($parameters[2]),
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];
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}
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return [];
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}
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/**
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* @param array|string $parameter
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* @param IEvent|null $event
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* @return array
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* @throws \InvalidArgumentException
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*/
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protected function getFile($parameter, IEvent $event = null) {
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if (is_array($parameter)) {
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$path = reset($parameter);
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$id = (string) key($parameter);
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} else if ($event !== null) {
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// Legacy from before ownCloud 8.2
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$path = $parameter;
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$id = $event->getObjectId();
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} else {
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throw new \InvalidArgumentException('Could not generate file parameter');
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}
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$encryptionContainer = $this->getEndToEndEncryptionContainer($id, $path);
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if ($encryptionContainer instanceof Folder) {
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$this->fileIsEncrypted = true;
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try {
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$fullPath = rtrim($encryptionContainer->getPath(), '/');
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// Remove /user/files/...
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list(,,, $path) = explode('/', $fullPath, 4);
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if (!$path) {
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throw new InvalidPathException('Path could not be split correctly');
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}
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return [
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'type' => 'file',
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'id' => $encryptionContainer->getId(),
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'name' => $encryptionContainer->getName(),
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'path' => $path,
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'link' => $this->url->linkToRouteAbsolute('files.viewcontroller.showFile', ['fileid' => $encryptionContainer->getId()]),
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];
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} catch (\Exception $e) {
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// fall back to the normal one
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$this->fileIsEncrypted = false;
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}
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}
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return [
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'type' => 'file',
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'id' => $id,
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'name' => basename($path),
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'path' => trim($path, '/'),
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'link' => $this->url->linkToRouteAbsolute('files.viewcontroller.showFile', ['fileid' => $id]),
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];
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}
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protected $fileEncrypted = [];
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/**
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* Check if a file is end2end encrypted
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* @param int $fileId
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* @param string $path
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* @return Folder|null
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*/
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protected function getEndToEndEncryptionContainer($fileId, $path) {
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if (isset($this->fileEncrypted[$fileId])) {
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return $this->fileEncrypted[$fileId];
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}
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$fileName = basename($path);
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if (!preg_match('/^[0-9a-fA-F]{32}$/', $fileName)) {
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$this->fileEncrypted[$fileId] = false;
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return $this->fileEncrypted[$fileId];
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}
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$userFolder = $this->rootFolder->getUserFolder($this->activityManager->getCurrentUserId());
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$files = $userFolder->getById($fileId);
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if (empty($files)) {
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try {
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// Deleted, try with parent
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$file = $this->findExistingParent($userFolder, dirname($path));
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} catch (NotFoundException $e) {
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return null;
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}
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if (!$file instanceof Folder || !$file->isEncrypted()) {
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return null;
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}
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$this->fileEncrypted[$fileId] = $file;
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return $file;
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}
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$file = array_shift($files);
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if ($file instanceof Folder && $file->isEncrypted()) {
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// If the folder is encrypted, it is the Container,
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// but can be the name is just fine.
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$this->fileEncrypted[$fileId] = true;
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return null;
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}
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$this->fileEncrypted[$fileId] = $this->getParentEndToEndEncryptionContainer($userFolder, $file);
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return $this->fileEncrypted[$fileId];
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}
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/**
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* @param Folder $userFolder
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* @param string $path
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* @return Folder
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* @throws NotFoundException
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*/
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protected function findExistingParent(Folder $userFolder, $path) {
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if ($path === '/') {
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throw new NotFoundException('Reached the root');
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}
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try {
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$folder = $userFolder->get(dirname($path));
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} catch (NotFoundException $e) {
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return $this->findExistingParent($userFolder, dirname($path));
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}
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return $folder;
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}
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/**
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* Check all parents until the user's root folder if one is encrypted
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*
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* @param Folder $userFolder
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* @param Node $file
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* @return Node|null
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*/
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protected function getParentEndToEndEncryptionContainer(Folder $userFolder, Node $file) {
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try {
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$parent = $file->getParent();
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if ($userFolder->getId() === $parent->getId()) {
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return null;
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}
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} catch (\Exception $e) {
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return null;
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}
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if ($parent->isEncrypted()) {
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return $parent;
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}
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return $this->getParentEndToEndEncryptionContainer($userFolder, $parent);
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}
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/**
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* @param string $uid
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* @return array
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*/
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protected function getUser($uid) {
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if (!isset($this->displayNames[$uid])) {
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$this->displayNames[$uid] = $this->getDisplayName($uid);
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}
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return [
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'type' => 'user',
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'id' => $uid,
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'name' => $this->displayNames[$uid],
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];
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}
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/**
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* @param string $uid
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* @return string
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*/
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protected function getDisplayName($uid) {
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$user = $this->userManager->get($uid);
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if ($user instanceof IUser) {
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return $user->getDisplayName();
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} else {
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return $uid;
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}
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}
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}
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