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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>
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
* @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\IComment;
use OCP\Comments\ICommentsManager;
use OCP\Comments\NotFoundException;
use OCP\Files\IRootFolder;
use OCP\IURLGenerator;
use OCP\IUser;
use OCP\IUserManager;
use OCP\L10N\IFactory;
use OCP\Notification\AlreadyProcessedException;
use OCP\Notification\INotification;
use OCP\Notification\INotifier;
class Notifier implements INotifier {
/** @var IFactory */
protected $l10nFactory;
/** @var IRootFolder */
protected $rootFolder;
/** @var ICommentsManager */
protected $commentsManager;
/** @var IURLGenerator */
protected $url;
/** @var IUserManager */
protected $userManager;
public function __construct(
IFactory $l10nFactory,
IRootFolder $rootFolder,
ICommentsManager $commentsManager,
IURLGenerator $url,
IUserManager $userManager
) {
$this->l10nFactory = $l10nFactory;
$this->rootFolder = $rootFolder;
$this->commentsManager = $commentsManager;
$this->url = $url;
$this->userManager = $userManager;
}
/**
* Identifier of the notifier, only use [a-z0-9_]
*
* @return string
* @since 17.0.0
*/
public function getID(): string {
return 'comments';
}
/**
* Human readable name describing the notifier
*
* @return string
* @since 17.0.0
*/
public function getName(): string {
return $this->l10nFactory->get('comments')->t('Comments');
}
/**
* @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
* @throws AlreadyProcessedException When the notification is not needed anymore and should be deleted
* @since 9.0.0
*/
public function prepare(INotification $notification, string $languageCode): INotification {
if ($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 ($commenter instanceof IUser) {
$displayName = $commenter->getDisplayName();
}
}
switch ($notification->getSubject()) {
case 'mention':
$parameters = $notification->getSubjectParameters();
if ($parameters[0] !== 'files') {
throw new \InvalidArgumentException('Unsupported comment object');
}
$userFolder = $this->rootFolder->getUserFolder($notification->getUser());
$nodes = $userFolder->getById((int)$parameters[1]);
if (empty($nodes)) {
throw new AlreadyProcessedException();
}
$node = $nodes[0];
$path = rtrim($node->getPath(), '/');
if (strpos($path, '/' . $notification->getUser() . '/files/') === 0) {
// Remove /user/files/...
$fullPath = $path;
[,,, $path] = explode('/', $fullPath, 4);
}
$subjectParameters = [
'file' => [
'type' => 'file',
'id' => $comment->getObjectId(),
'name' => $node->getName(),
'path' => $path,
'link' => $this->url->linkToRouteAbsolute('files.viewcontroller.showFile', ['fileid' => $comment->getObjectId()]),
],
];
if ($isDeletedActor) {
$subject = $l->t('You were mentioned on “{file}”, in a comment by a user that has since been deleted');
} else {
$subject = $l->t('{user} mentioned you in a comment on “{file}”');
$subjectParameters['user'] = [
'type' => 'user',
'id' => $comment->getActorId(),
'name' => $displayName,
];
}
[$message, $messageParameters] = $this->commentToRichMessage($comment);
$notification->setRichSubject($subject, $subjectParameters)
->setParsedSubject($this->richToParsed($subject, $subjectParameters))
->setRichMessage($message, $messageParameters)
->setParsedMessage($this->richToParsed($message, $messageParameters))
->setIcon($this->url->getAbsoluteURL($this->url->imagePath('core', 'actions/comment.svg')))
->setLink($this->url->linkToRouteAbsolute(
'comments.Notifications.view',
['id' => $comment->getId()])
);
return $notification;
break;
default:
throw new \InvalidArgumentException('Invalid subject');
}
}
public function commentToRichMessage(IComment $comment): array {
$message = $comment->getMessage();
$messageParameters = [];
$mentionTypeCount = [];
$mentions = $comment->getMentions();
foreach ($mentions as $mention) {
if ($mention['type'] === 'user') {
$user = $this->userManager->get($mention['id']);
if (!$user instanceof IUser) {
continue;
}
}
if (!array_key_exists($mention['type'], $mentionTypeCount)) {
$mentionTypeCount[$mention['type']] = 0;
}
$mentionTypeCount[$mention['type']]++;
// To keep a limited character set in parameter IDs ([a-zA-Z0-9-])
// the mention parameter ID does not include the mention ID (which
// could contain characters like '@' for user IDs) but a one-based
// index of the mentions of that type.
$mentionParameterId = 'mention-' . $mention['type'] . $mentionTypeCount[$mention['type']];
$message = str_replace('@"' . $mention['id'] . '"', '{' . $mentionParameterId . '}', $message);
if (strpos($mention['id'], ' ') === false && strpos($mention['id'], 'guest/') !== 0) {
$message = str_replace('@' . $mention['id'], '{' . $mentionParameterId . '}', $message);
}
try {
$displayName = $this->commentsManager->resolveDisplayName($mention['type'], $mention['id']);
} catch (\OutOfBoundsException $e) {
// There is no registered display name resolver for the mention
// type, so the client decides what to display.
$displayName = '';
}
$messageParameters[$mentionParameterId] = [
'type' => $mention['type'],
'id' => $mention['id'],
'name' => $displayName
];
}
return [$message, $messageParameters];
}
public function richToParsed(string $message, array $parameters): string {
$placeholders = $replacements = [];
foreach ($parameters as $placeholder => $parameter) {
$placeholders[] = '{' . $placeholder . '}';
if ($parameter['type'] === 'user') {
$replacements[] = '@' . $parameter['name'];
} elseif ($parameter['type'] === 'file') {
$replacements[] = $parameter['path'];
} else {
$replacements[] = $parameter['name'];
}
}
return str_replace($placeholders, $replacements, $message);
}
}
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