nextcloud/apps/comments/lib/Notification/Notifier.php

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<?php
/**
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
*
* @copyright Copyright (c) 2016, ownCloud, Inc.
* @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\ICommentsManager;
use OCP\Comments\NotFoundException;
use OCP\Files\Folder;
use OCP\IUserManager;
use OCP\L10N\IFactory;
use OCP\Notification\INotification;
use OCP\Notification\INotifier;
class Notifier implements INotifier {
/** @var IFactory */
protected $l10nFactory;
/** @var Folder */
protected $userFolder;
/** @var ICommentsManager */
protected $commentsManager;
/** @var IUserManager */
protected $userManager;
public function __construct(
IFactory $l10nFactory,
Folder $userFolder,
ICommentsManager $commentsManager,
IUserManager $userManager
) {
$this->l10nFactory = $l10nFactory;
$this->userFolder = $userFolder;
$this->commentsManager = $commentsManager;
$this->userManager = $userManager;
}
/**
* @param INotification $notification
* @param string $languageCode The code of the language that should be used to prepare the notification
* @return INotification
* @throws \InvalidArgumentException When the notification was not prepared by a notifier
*/
public function prepare(INotification $notification, $languageCode) {
if($notification->getApp() !== 'comments') {
throw new \InvalidArgumentException();
}
try {
$comment = $this->commentsManager->get($notification->getObjectId());
} catch(NotFoundException $e) {
// needs to be converted to InvalidArgumentException, otherwise none Notifications will be shown at all
throw new \InvalidArgumentException('Comment not found', 0, $e);
}
$l = $this->l10nFactory->get('comments', $languageCode);
$displayName = $comment->getActorId();
$isDeletedActor = $comment->getActorType() === ICommentsManager::DELETED_USER;
if($comment->getActorType() === 'users') {
$commenter = $this->userManager->get($comment->getActorId());
if(!is_null($commenter)) {
$displayName = $commenter->getDisplayName();
}
}
switch($notification->getSubject()) {
case 'mention':
$parameters = $notification->getSubjectParameters();
if($parameters[0] !== 'files') {
throw new \InvalidArgumentException('Unsupported comment object');
}
$nodes = $this->userFolder->getById($parameters[1]);
if(empty($nodes)) {
throw new \InvalidArgumentException('Cannot resolve file id to Node instance');
}
$fileName = $nodes[0]->getName();
if($isDeletedActor) {
$subject = (string) $l->t(
'A (now) deleted user mentioned you in a comment on "%s".',
[ $fileName ]
);
} else {
$subject = (string) $l->t(
'%s mentioned you in a comment on "%s".',
[ $displayName, $fileName ]
);
}
$notification->setParsedSubject($subject);
return $notification;
break;
default:
throw new \InvalidArgumentException('Invalid subject');
}
}
}