405 lines
11 KiB
PHP
405 lines
11 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 Georg Ehrke <oc.list@georgehrke.com>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Citharel <tcit@tcit.fr>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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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\DAV\CalDAV;
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use OCA\DAV\CalDAV\Proxy\ProxyMapper;
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use OCA\DAV\DAV\Sharing\IShareable;
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use OCA\DAV\Exception\UnsupportedLimitOnInitialSyncException;
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use OCP\IConfig;
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use OCP\IL10N;
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use Sabre\CalDAV\Backend\BackendInterface;
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use Sabre\DAV\Exception\Forbidden;
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use Sabre\DAV\Exception\NotFound;
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use Sabre\DAV\PropPatch;
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/**
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* Class Calendar
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*
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* @package OCA\DAV\CalDAV
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* @property BackendInterface|CalDavBackend $caldavBackend
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*/
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class Calendar extends \Sabre\CalDAV\Calendar implements IShareable {
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/** @var IConfig */
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private $config;
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/**
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* Calendar constructor.
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*
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* @param BackendInterface $caldavBackend
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* @param $calendarInfo
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* @param IL10N $l10n
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* @param IConfig $config
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*/
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public function __construct(BackendInterface $caldavBackend, $calendarInfo, IL10N $l10n, IConfig $config) {
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parent::__construct($caldavBackend, $calendarInfo);
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if ($this->getName() === BirthdayService::BIRTHDAY_CALENDAR_URI) {
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$this->calendarInfo['{DAV:}displayname'] = $l10n->t('Contact birthdays');
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}
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if ($this->getName() === CalDavBackend::PERSONAL_CALENDAR_URI &&
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$this->calendarInfo['{DAV:}displayname'] === CalDavBackend::PERSONAL_CALENDAR_NAME) {
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$this->calendarInfo['{DAV:}displayname'] = $l10n->t('Personal');
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}
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$this->config = $config;
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}
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/**
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* Updates the list of shares.
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*
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* The first array is a list of people that are to be added to the
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* resource.
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*
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* Every element in the add array has the following properties:
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* * href - A url. Usually a mailto: address
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* * commonName - Usually a first and last name, or false
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* * summary - A description of the share, can also be false
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* * readOnly - A boolean value
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*
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* Every element in the remove array is just the address string.
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*
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* @param array $add
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* @param array $remove
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* @return void
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* @throws Forbidden
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*/
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public function updateShares(array $add, array $remove) {
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if ($this->isShared()) {
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throw new Forbidden();
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}
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$this->caldavBackend->updateShares($this, $add, $remove);
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}
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/**
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* Returns the list of people whom this resource is shared with.
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*
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* Every element in this array should have the following properties:
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* * href - Often a mailto: address
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* * commonName - Optional, for example a first + last name
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* * status - See the Sabre\CalDAV\SharingPlugin::STATUS_ constants.
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* * readOnly - boolean
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* * summary - Optional, a description for the share
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*
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* @return array
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*/
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public function getShares() {
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if ($this->isShared()) {
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return [];
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}
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return $this->caldavBackend->getShares($this->getResourceId());
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}
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/**
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* @return int
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*/
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public function getResourceId() {
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return $this->calendarInfo['id'];
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}
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/**
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* @return string
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*/
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public function getPrincipalURI() {
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return $this->calendarInfo['principaluri'];
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}
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/**
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* @return array
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*/
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public function getACL() {
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$acl = [
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[
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'privilege' => '{DAV:}read',
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'principal' => $this->getOwner(),
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'protected' => true,
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],
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[
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'privilege' => '{DAV:}read',
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'principal' => $this->getOwner() . '/calendar-proxy-write',
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'protected' => true,
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],
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[
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'privilege' => '{DAV:}read',
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'principal' => $this->getOwner() . '/calendar-proxy-read',
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'protected' => true,
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],
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];
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if ($this->getName() !== BirthdayService::BIRTHDAY_CALENDAR_URI) {
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$acl[] = [
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'privilege' => '{DAV:}write',
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'principal' => $this->getOwner(),
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'protected' => true,
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];
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$acl[] = [
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'privilege' => '{DAV:}write',
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'principal' => $this->getOwner() . '/calendar-proxy-write',
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'protected' => true,
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];
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} else {
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$acl[] = [
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'privilege' => '{DAV:}write-properties',
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'principal' => $this->getOwner(),
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'protected' => true,
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];
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$acl[] = [
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'privilege' => '{DAV:}write-properties',
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'principal' => $this->getOwner() . '/calendar-proxy-write',
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'protected' => true,
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];
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}
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$acl[] = [
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'privilege' => '{DAV:}write-properties',
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'principal' => $this->getOwner() . '/calendar-proxy-read',
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'protected' => true,
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];
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if (!$this->isShared()) {
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return $acl;
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}
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if ($this->getOwner() !== parent::getOwner()) {
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$acl[] = [
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'privilege' => '{DAV:}read',
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'principal' => parent::getOwner(),
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'protected' => true,
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];
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if ($this->canWrite()) {
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$acl[] = [
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'privilege' => '{DAV:}write',
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'principal' => parent::getOwner(),
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'protected' => true,
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];
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} else {
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$acl[] = [
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'privilege' => '{DAV:}write-properties',
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'principal' => parent::getOwner(),
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'protected' => true,
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];
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}
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}
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if ($this->isPublic()) {
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$acl[] = [
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'privilege' => '{DAV:}read',
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'principal' => 'principals/system/public',
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'protected' => true,
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];
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}
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$acl = $this->caldavBackend->applyShareAcl($this->getResourceId(), $acl);
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$allowedPrincipals = [
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$this->getOwner(),
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$this->getOwner(). '/calendar-proxy-read',
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$this->getOwner(). '/calendar-proxy-write',
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parent::getOwner(),
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'principals/system/public'
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];
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return array_filter($acl, function($rule) use ($allowedPrincipals) {
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return \in_array($rule['principal'], $allowedPrincipals, true);
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});
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}
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public function getChildACL() {
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return $this->getACL();
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}
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public function getOwner() {
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if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) {
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return $this->calendarInfo['{http://owncloud.org/ns}owner-principal'];
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}
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return parent::getOwner();
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}
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public function delete() {
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if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal']) &&
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$this->calendarInfo['{http://owncloud.org/ns}owner-principal'] !== $this->calendarInfo['principaluri']) {
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$principal = 'principal:' . parent::getOwner();
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$shares = $this->caldavBackend->getShares($this->getResourceId());
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$shares = array_filter($shares, function($share) use ($principal){
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return $share['href'] === $principal;
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});
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if (empty($shares)) {
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throw new Forbidden();
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}
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$this->caldavBackend->updateShares($this, [], [
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$principal
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]);
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return;
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}
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// Remember when a user deleted their birthday calendar
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// in order to not regenerate it on the next contacts change
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if ($this->getName() === BirthdayService::BIRTHDAY_CALENDAR_URI) {
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$principalURI = $this->getPrincipalURI();
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$userId = substr($principalURI, 17);
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$this->config->setUserValue($userId, 'dav', 'generateBirthdayCalendar', 'no');
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}
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parent::delete();
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}
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public function propPatch(PropPatch $propPatch) {
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// parent::propPatch will only update calendars table
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// if calendar is shared, changes have to be made to the properties table
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if (!$this->isShared()) {
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parent::propPatch($propPatch);
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}
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}
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public function getChild($name) {
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$obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'], $name);
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if (!$obj) {
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throw new NotFound('Calendar object not found');
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}
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if ($obj['classification'] === CalDavBackend::CLASSIFICATION_PRIVATE && $this->isShared()) {
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throw new NotFound('Calendar object not found');
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}
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$obj['acl'] = $this->getChildACL();
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return new CalendarObject($this->caldavBackend, $this->calendarInfo, $obj);
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}
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public function getChildren() {
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$objs = $this->caldavBackend->getCalendarObjects($this->calendarInfo['id']);
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$children = [];
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foreach ($objs as $obj) {
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if ($obj['classification'] === CalDavBackend::CLASSIFICATION_PRIVATE && $this->isShared()) {
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continue;
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}
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$obj['acl'] = $this->getChildACL();
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$children[] = new CalendarObject($this->caldavBackend, $this->calendarInfo, $obj);
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}
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return $children;
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}
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public function getMultipleChildren(array $paths) {
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$objs = $this->caldavBackend->getMultipleCalendarObjects($this->calendarInfo['id'], $paths);
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$children = [];
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foreach ($objs as $obj) {
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if ($obj['classification'] === CalDavBackend::CLASSIFICATION_PRIVATE && $this->isShared()) {
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continue;
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}
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$obj['acl'] = $this->getChildACL();
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$children[] = new CalendarObject($this->caldavBackend, $this->calendarInfo, $obj);
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}
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return $children;
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}
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public function childExists($name) {
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$obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'], $name);
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if (!$obj) {
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return false;
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}
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if ($obj['classification'] === CalDavBackend::CLASSIFICATION_PRIVATE && $this->isShared()) {
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return false;
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}
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return true;
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}
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public function calendarQuery(array $filters) {
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$uris = $this->caldavBackend->calendarQuery($this->calendarInfo['id'], $filters);
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if ($this->isShared()) {
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return array_filter($uris, function ($uri) {
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return $this->childExists($uri);
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});
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}
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return $uris;
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}
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/**
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* @param boolean $value
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* @return string|null
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*/
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public function setPublishStatus($value) {
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$publicUri = $this->caldavBackend->setPublishStatus($value, $this);
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$this->calendarInfo['publicuri'] = $publicUri;
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return $publicUri;
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}
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/**
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* @return mixed $value
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*/
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public function getPublishStatus() {
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return $this->caldavBackend->getPublishStatus($this);
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}
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public function canWrite() {
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if ($this->getName() === BirthdayService::BIRTHDAY_CALENDAR_URI) {
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return false;
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}
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if (isset($this->calendarInfo['{http://owncloud.org/ns}read-only'])) {
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return !$this->calendarInfo['{http://owncloud.org/ns}read-only'];
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}
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return true;
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}
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private function isPublic() {
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return isset($this->calendarInfo['{http://owncloud.org/ns}public']);
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}
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protected function isShared() {
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if (!isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) {
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return false;
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}
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return $this->calendarInfo['{http://owncloud.org/ns}owner-principal'] !== $this->calendarInfo['principaluri'];
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}
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public function isSubscription() {
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return isset($this->calendarInfo['{http://calendarserver.org/ns/}source']);
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}
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/**
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* @inheritDoc
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*/
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public function getChanges($syncToken, $syncLevel, $limit = null) {
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if (!$syncToken && $limit) {
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throw new UnsupportedLimitOnInitialSyncException();
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}
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return parent::getChanges($syncToken, $syncLevel, $limit);
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}
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}
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