122 lines
3.1 KiB
PHP
122 lines
3.1 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 Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Joas Schilling <coding@schilljs.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\Comments\Notification;
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use OCP\Comments\CommentsEvent;
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use OCP\Comments\IComment;
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use OCP\IUserManager;
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use OCP\Notification\IManager;
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class Listener {
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/** @var IManager */
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protected $notificationManager;
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/** @var IUserManager */
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protected $userManager;
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/**
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* Listener constructor.
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*
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* @param IManager $notificationManager
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* @param IUserManager $userManager
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*/
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public function __construct(
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IManager $notificationManager,
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IUserManager $userManager
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) {
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$this->notificationManager = $notificationManager;
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$this->userManager = $userManager;
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}
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/**
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* @param CommentsEvent $event
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*/
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public function evaluate(CommentsEvent $event) {
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$comment = $event->getComment();
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$mentions = $this->extractMentions($comment->getMentions());
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if(empty($mentions)) {
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// no one to notify
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return;
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}
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$notification = $this->instantiateNotification($comment);
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foreach($mentions as $uid) {
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if( ($comment->getActorType() === 'users' && $uid === $comment->getActorId())
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|| !$this->userManager->userExists($uid)
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) {
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// do not notify unknown users or yourself
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continue;
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}
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$notification->setUser($uid);
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if( $event->getEvent() === CommentsEvent::EVENT_DELETE
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|| $event->getEvent() === CommentsEvent::EVENT_PRE_UPDATE)
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{
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$this->notificationManager->markProcessed($notification);
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} else {
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$this->notificationManager->notify($notification);
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}
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}
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}
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/**
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* creates a notification instance and fills it with comment data
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*
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* @param IComment $comment
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* @return \OCP\Notification\INotification
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*/
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public function instantiateNotification(IComment $comment) {
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$notification = $this->notificationManager->createNotification();
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$notification
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->setApp('comments')
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->setObject('comment', $comment->getId())
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->setSubject('mention', [ $comment->getObjectType(), $comment->getObjectId() ])
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->setDateTime($comment->getCreationDateTime());
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return $notification;
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}
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/**
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* flattens the mention array returned from comments to a list of user ids.
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*
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* @param array $mentions
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* @return string[] containing the mentions, e.g. ['alice', 'bob']
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*/
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public function extractMentions(array $mentions) {
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if(empty($mentions)) {
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return [];
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}
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$uids = [];
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foreach($mentions as $mention) {
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if($mention['type'] === 'user') {
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$uids[] = $mention['id'];
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}
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}
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return $uids;
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}
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}
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