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<?php
/**
* @author Joas Schilling <nickvergessen@owncloud.com>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @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\DAV\CalDAV;
use OCA\DAV\DAV\Sharing\IShareable;
use OCP\IL10N;
use Sabre\CalDAV\Backend\BackendInterface;
use Sabre\DAV\Exception\Forbidden;
use Sabre\DAV\PropPatch;
class Calendar extends \Sabre\CalDAV\Calendar implements IShareable {
public function __construct(BackendInterface $caldavBackend, $calendarInfo, IL10N $l10n) {
parent::__construct($caldavBackend, $calendarInfo);
if ($this->getName() === BirthdayService::BIRTHDAY_CALENDAR_URI) {
$this->calendarInfo['{DAV:}displayname'] = $l10n->t('Contact birthdays');
}
}
/**
* Updates the list of shares.
*
* The first array is a list of people that are to be added to the
* resource.
*
* Every element in the add array has the following properties:
* * href - A url. Usually a mailto: address
* * commonName - Usually a first and last name, or false
* * summary - A description of the share, can also be false
* * readOnly - A boolean value
*
* Every element in the remove array is just the address string.
*
* @param array $add
* @param array $remove
* @return void
*/
function updateShares(array $add, array $remove) {
/** @var CalDavBackend $calDavBackend */
$calDavBackend = $this->caldavBackend;
$calDavBackend->updateShares($this, $add, $remove);
}
/**
* Returns the list of people whom this resource is shared with.
*
* Every element in this array should have the following properties:
* * href - Often a mailto: address
* * commonName - Optional, for example a first + last name
* * status - See the Sabre\CalDAV\SharingPlugin::STATUS_ constants.
* * readOnly - boolean
* * summary - Optional, a description for the share
*
* @return array
*/
function getShares() {
/** @var CalDavBackend $calDavBackend */
$calDavBackend = $this->caldavBackend;
return $calDavBackend->getShares($this->getResourceId());
}
/**
* @return int
*/
public function getResourceId() {
return $this->calendarInfo['id'];
}
function getACL() {
$acl = [
[
'privilege' => '{DAV:}read',
'principal' => $this->getOwner(),
'protected' => true,
]];
if ($this->getName() !== BirthdayService::BIRTHDAY_CALENDAR_URI) {
$acl[] = [
'privilege' => '{DAV:}write',
'principal' => $this->getOwner(),
'protected' => true,
];
}
if ($this->getOwner() !== parent::getOwner()) {
$acl[] = [
'privilege' => '{DAV:}read',
'principal' => parent::getOwner(),
'protected' => true,
];
if ($this->canWrite()) {
$acl[] = [
'privilege' => '{DAV:}write',
'principal' => parent::getOwner(),
'protected' => true,
];
}
}
/** @var CalDavBackend $calDavBackend */
$calDavBackend = $this->caldavBackend;
return $calDavBackend->applyShareAcl($this->getResourceId(), $acl);
}
function getChildACL() {
return $this->getACL();
}
function getOwner() {
if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) {
return $this->calendarInfo['{http://owncloud.org/ns}owner-principal'];
}
return parent::getOwner();
}
function delete() {
if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) {
$principal = 'principal:' . parent::getOwner();
$shares = $this->getShares();
$shares = array_filter($shares, function($share) use ($principal){
return $share['href'] === $principal;
});
if (empty($shares)) {
throw new Forbidden();
}
/** @var CalDavBackend $calDavBackend */
$calDavBackend = $this->caldavBackend;
$calDavBackend->updateShares($this, [], [
'href' => $principal
]);
return;
}
parent::delete();
}
function propPatch(PropPatch $propPatch) {
$mutations = $propPatch->getMutations();
// If this is a shared calendar, the user can only change the enabled property, to hide it.
if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal']) && (sizeof($mutations) !== 1 || !isset($mutations['{http://owncloud.org/ns}calendar-enabled']))) {
throw new Forbidden();
}
parent::propPatch($propPatch);
}
private function canWrite() {
if (isset($this->calendarInfo['{http://owncloud.org/ns}read-only'])) {
return !$this->calendarInfo['{http://owncloud.org/ns}read-only'];
}
return true;
}
}
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