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<?php |
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/** |
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* @copyright Copyright (c) 2016 Joas Schilling <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program 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 as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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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 |
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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\AnnouncementCenter\Comments; |
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use OCP\Comments\CommentsEvent; |
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use OCP\Comments\IComment; |
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use OCP\Comments\ICommentsEventHandler; |
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use OCP\IURLGenerator; |
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use OCP\IUserManager; |
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use OCP\Notification\IManager as INotificationManager; |
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use OCP\Notification\INotification; |
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class EventHandler implements ICommentsEventHandler { |
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/** @var IUserManager */ |
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protected $userManager; |
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/** @var INotificationManager */ |
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protected $notificationManager; |
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/** @var IURLGenerator */ |
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protected $urlGenerator; |
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/** |
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* EventHandler constructor. |
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* |
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* @param IUserManager $userManager |
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* @param INotificationManager $notificationManager |
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* @param IURLGenerator $urlGenerator |
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*/ |
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public function __construct(IUserManager $userManager, INotificationManager $notificationManager, IURLGenerator $urlGenerator) { |
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$this->userManager = $userManager; |
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$this->notificationManager = $notificationManager; |
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$this->urlGenerator = $urlGenerator; |
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} |
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/** |
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* @param CommentsEvent $event |
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* @since 9.2.0 |
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*/ |
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public function handle(CommentsEvent $event) { |
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if ($event->getComment()->getObjectType() !== 'announcement') { |
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return; |
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} |
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$eventType = $event->getEvent(); |
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if (in_array($eventType, [ |
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CommentsEvent::EVENT_ADD, |
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CommentsEvent::EVENT_PRE_UPDATE, |
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CommentsEvent::EVENT_UPDATE, |
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CommentsEvent::EVENT_DELETE, |
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])) { |
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$this->evaluateMentions($event); |
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} |
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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 evaluateMentions(CommentsEvent $event) { |
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$comment = $event->getComment(); |
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$mentions = $this->extractMentions($comment->getMessage()); |
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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 $mention) { |
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$user = substr($mention, 1); // @username → username |
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if( ($comment->getActorType() === 'users' && $user === $comment->getActorId()) |
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|| !$this->userManager->userExists($user) |
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) { |
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// do not notify unknown users or yourself |
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continue; |
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} |
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$notification->setUser($user); |
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if (in_array($event->getEvent(), [CommentsEvent::EVENT_DELETE, CommentsEvent::EVENT_PRE_UPDATE])) { |
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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 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('announcementcenter') |
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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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->setLink($this->urlGenerator->linkToRouteAbsolute( |
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'announcementcenter.page.followComment', |
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['id' => $comment->getId()] |
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)); |
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return $notification; |
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} |
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/** |
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* extracts @-mentions out of a message body. |
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* |
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* @param string $message |
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* @return string[] containing the mentions, e.g. ['@alice', '@bob'] |
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*/ |
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public function extractMentions($message) { |
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$ok = preg_match_all('/\B@[a-z0-9_\-@\.\']+/i', $message, $mentions); |
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if (!$ok || !isset($mentions[0]) || !is_array($mentions[0])) { |
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return []; |
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} |
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return array_unique($mentions[0]); |
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} |
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} |
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nextcloud /
announcementcenter
