130 lines
3.6 KiB
PHP
130 lines
3.6 KiB
PHP
<?php
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/**
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* @author Arthur Schiwon <blizzz@owncloud.com>
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*
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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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\DAV\Connector\Sabre;
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use OCP\Comments\ICommentsManager;
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use OCP\IUserSession;
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use Sabre\DAV\PropFind;
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use Sabre\DAV\ServerPlugin;
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class CommentPropertiesPlugin extends ServerPlugin {
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const PROPERTY_NAME_HREF = '{http://owncloud.org/ns}comments-href';
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const PROPERTY_NAME_COUNT = '{http://owncloud.org/ns}comments-count';
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const PROPERTY_NAME_UNREAD = '{http://owncloud.org/ns}comments-unread';
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/** @var \Sabre\DAV\Server */
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protected $server;
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/** @var ICommentsManager */
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private $commentsManager;
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/** @var IUserSession */
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private $userSession;
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public function __construct(ICommentsManager $commentsManager, IUserSession $userSession) {
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$this->commentsManager = $commentsManager;
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$this->userSession = $userSession;
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}
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/**
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* This initializes the plugin.
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*
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* This function is called by Sabre\DAV\Server, after
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* addPlugin is called.
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*
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* This method should set up the required event subscriptions.
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*
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* @param \Sabre\DAV\Server $server
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* @return void
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*/
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function initialize(\Sabre\DAV\Server $server) {
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$this->server = $server;
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$this->server->on('propFind', array($this, 'handleGetProperties'));
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}
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/**
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* Adds tags and favorites properties to the response,
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* if requested.
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*
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* @param PropFind $propFind
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* @param \Sabre\DAV\INode $node
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* @return void
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*/
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public function handleGetProperties(
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PropFind $propFind,
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\Sabre\DAV\INode $node
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) {
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if (!($node instanceof File) && !($node instanceof Directory)) {
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return;
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}
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$propFind->handle(self::PROPERTY_NAME_COUNT, function() use ($node) {
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return $this->commentsManager->getNumberOfCommentsForObject('files', strval($node->getId()));
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});
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$propFind->handle(self::PROPERTY_NAME_HREF, function() use ($node) {
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return $this->getCommentsLink($node);
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});
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$propFind->handle(self::PROPERTY_NAME_UNREAD, function() use ($node) {
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return $this->getUnreadCount($node);
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});
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}
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/**
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* returns a reference to the comments node
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*
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* @param Node $node
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* @return mixed|string
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*/
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public function getCommentsLink(Node $node) {
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$href = $this->server->getBaseUri();
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$entryPoint = strpos($href, '/remote.php/');
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if($entryPoint === false) {
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// in case we end up somewhere else, unexpectedly.
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return null;
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}
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$commentsPart = 'dav/comments/files/' . rawurldecode($node->getId());
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$href = substr_replace($href, $commentsPart, $entryPoint + strlen('/remote.php/'));
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return $href;
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}
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/**
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* returns the number of unread comments for the currently logged in user
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* on the given file or directory node
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*
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* @param Node $node
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* @return Int|null
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*/
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public function getUnreadCount(Node $node) {
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$user = $this->userSession->getUser();
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if(is_null($user)) {
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return null;
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}
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$lastRead = $this->commentsManager->getReadMark('files', strval($node->getId()), $user);
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return $this->commentsManager->getNumberOfCommentsForObject('files', strval($node->getId()), $lastRead);
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}
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}
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