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- <?php
- /**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @author Joas Schilling <coding@schilljs.com>
- *
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * 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, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
- namespace OCA\Comments\Notification;
-
- use OCP\Comments\CommentsEvent;
- use OCP\Comments\IComment;
- use OCP\IUserManager;
- use OCP\Notification\IManager;
-
- class Listener {
- /** @var IManager */
- protected $notificationManager;
-
- /** @var IUserManager */
- protected $userManager;
-
- /**
- * Listener constructor.
- *
- * @param IManager $notificationManager
- * @param IUserManager $userManager
- */
- public function __construct(
- IManager $notificationManager,
- IUserManager $userManager
- ) {
- $this->notificationManager = $notificationManager;
- $this->userManager = $userManager;
- }
-
- /**
- * @param CommentsEvent $event
- */
- public function evaluate(CommentsEvent $event) {
- $comment = $event->getComment();
-
- $mentions = $this->extractMentions($comment->getMentions());
- if (empty($mentions)) {
- // no one to notify
- return;
- }
-
- $notification = $this->instantiateNotification($comment);
-
- foreach ($mentions as $uid) {
- if (($comment->getActorType() === 'users' && $uid === $comment->getActorId())
- || !$this->userManager->userExists($uid)
- ) {
- // do not notify unknown users or yourself
- continue;
- }
-
- $notification->setUser($uid);
- if ($event->getEvent() === CommentsEvent::EVENT_DELETE
- || $event->getEvent() === CommentsEvent::EVENT_PRE_UPDATE) {
- $this->notificationManager->markProcessed($notification);
- } else {
- $this->notificationManager->notify($notification);
- }
- }
- }
-
- /**
- * creates a notification instance and fills it with comment data
- *
- * @param IComment $comment
- * @return \OCP\Notification\INotification
- */
- public function instantiateNotification(IComment $comment) {
- $notification = $this->notificationManager->createNotification();
- $notification
- ->setApp('comments')
- ->setObject('comment', $comment->getId())
- ->setSubject('mention', [ $comment->getObjectType(), $comment->getObjectId() ])
- ->setDateTime($comment->getCreationDateTime());
-
- return $notification;
- }
-
- /**
- * flattens the mention array returned from comments to a list of user ids.
- *
- * @param array $mentions
- * @return string[] containing the mentions, e.g. ['alice', 'bob']
- */
- public function extractMentions(array $mentions) {
- if (empty($mentions)) {
- return [];
- }
- $uids = [];
- foreach ($mentions as $mention) {
- if ($mention['type'] === 'user') {
- $uids[] = $mention['id'];
- }
- }
- return $uids;
- }
- }
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