148 lines
4.0 KiB
PHP
148 lines
4.0 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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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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* @author Vincent Petry <pvince81@owncloud.com>
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*
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* @license AGPL-3.0
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*
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* This code 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, version 3,
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* as published by the Free Software Foundation.
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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, version 3,
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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\Service;
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use OCA\Files\Activity\FavoriteProvider;
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use OCP\Activity\IManager;
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use OCP\Files\Folder;
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use OCP\ITags;
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use OCP\IUser;
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use OCP\IUserSession;
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use Symfony\Component\EventDispatcher\EventDispatcherInterface;
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use Symfony\Component\EventDispatcher\GenericEvent;
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/**
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* Service class to manage tags on files.
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*/
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class TagService {
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/** @var IUserSession */
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private $userSession;
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/** @var IManager */
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private $activityManager;
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/** @var ITags */
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private $tagger;
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/** @var Folder */
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private $homeFolder;
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/** @var EventDispatcherInterface */
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private $dispatcher;
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/**
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* @param IUserSession $userSession
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* @param IManager $activityManager
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* @param ITags $tagger
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* @param Folder $homeFolder
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* @param EventDispatcherInterface $dispatcher
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*/
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public function __construct(
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IUserSession $userSession,
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IManager $activityManager,
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ITags $tagger,
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Folder $homeFolder,
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EventDispatcherInterface $dispatcher
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) {
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$this->userSession = $userSession;
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$this->activityManager = $activityManager;
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$this->tagger = $tagger;
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$this->homeFolder = $homeFolder;
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$this->dispatcher = $dispatcher;
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}
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/**
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* Updates the tags of the specified file path.
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* The passed tags are absolute, which means they will
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* replace the actual tag selection.
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*
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* @param string $path path
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* @param array $tags array of tags
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* @return array list of tags
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* @throws \OCP\Files\NotFoundException if the file does not exist
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*/
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public function updateFileTags($path, $tags) {
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$fileId = $this->homeFolder->get($path)->getId();
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$currentTags = $this->tagger->getTagsForObjects([$fileId]);
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if (!empty($currentTags)) {
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$currentTags = current($currentTags);
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}
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$newTags = array_diff($tags, $currentTags);
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foreach ($newTags as $tag) {
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if ($tag === ITags::TAG_FAVORITE) {
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$this->addActivity(true, $fileId, $path);
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}
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$this->tagger->tagAs($fileId, $tag);
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}
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$deletedTags = array_diff($currentTags, $tags);
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foreach ($deletedTags as $tag) {
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if ($tag === ITags::TAG_FAVORITE) {
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$this->addActivity(false, $fileId, $path);
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}
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$this->tagger->unTag($fileId, $tag);
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}
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// TODO: re-read from tagger to make sure the
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// list is up to date, in case of concurrent changes ?
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return $tags;
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}
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/**
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* @param bool $addToFavorite
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* @param int $fileId
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* @param string $path
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*/
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protected function addActivity($addToFavorite, $fileId, $path) {
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$user = $this->userSession->getUser();
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if (!$user instanceof IUser) {
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return;
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}
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$eventName = $addToFavorite ? 'addFavorite' : 'removeFavorite';
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$this->dispatcher->dispatch(self::class . '::' . $eventName, new GenericEvent(null, [
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'userId' => $user->getUID(),
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'fileId' => $fileId,
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'path' => $path,
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]));
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$event = $this->activityManager->generateEvent();
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try {
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$event->setApp('files')
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->setObject('files', $fileId, $path)
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->setType('favorite')
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->setAuthor($user->getUID())
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->setAffectedUser($user->getUID())
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->setTimestamp(time())
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->setSubject(
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$addToFavorite ? FavoriteProvider::SUBJECT_ADDED : FavoriteProvider::SUBJECT_REMOVED,
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['id' => $fileId, 'path' => $path]
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);
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$this->activityManager->publish($event);
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} catch (\InvalidArgumentException $e) {
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} catch (\BadMethodCallException $e) {
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}
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}
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}
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