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<?php
/**
* SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
* SPDX-License-Identifier: AGPL-3.0-only
*/
namespace OCA\DAV\CalDAV;
use OCP\IL10N;
use Sabre\VObject\Component;
use Sabre\VObject\Property;
use Sabre\VObject\Reader;
class CalendarObject extends \Sabre\CalDAV\CalendarObject {
/** @var IL10N */
protected $l10n;
/**
* CalendarObject constructor.
*
* @param CalDavBackend $caldavBackend
* @param IL10N $l10n
* @param array $calendarInfo
* @param array $objectData
*/
public function __construct(CalDavBackend $caldavBackend, IL10N $l10n,
array $calendarInfo,
array $objectData) {
parent::__construct($caldavBackend, $calendarInfo, $objectData);
if ($this->isShared()) {
unset($this->objectData['size']);
}
$this->l10n = $l10n;
}
/**
* @inheritdoc
*/
public function get() {
$data = parent::get();
if (!$this->isShared()) {
return $data;
}
$vObject = Reader::read($data);
// remove VAlarms if calendar is shared read-only
if (!$this->canWrite()) {
$this->removeVAlarms($vObject);
}
// shows as busy if event is declared confidential
if ($this->objectData['classification'] === CalDavBackend::CLASSIFICATION_CONFIDENTIAL) {
$this->createConfidentialObject($vObject);
}
return $vObject->serialize();
}
public function getId(): int {
return (int)$this->objectData['id'];
}
protected function isShared() {
if (!isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) {
return false;
}
return $this->calendarInfo['{http://owncloud.org/ns}owner-principal'] !== $this->calendarInfo['principaluri'];
}
/**
* @param Component\VCalendar $vObject
* @return void
*/
private function createConfidentialObject(Component\VCalendar $vObject): void {
/** @var Component $vElement */
$vElements = array_filter($vObject->getComponents(), static function ($vElement) {
return $vElement instanceof Component\VEvent || $vElement instanceof Component\VJournal || $vElement instanceof Component\VTodo;
});
foreach ($vElements as $vElement) {
if (empty($vElement->select('SUMMARY'))) {
$vElement->add('SUMMARY', $this->l10n->t('Busy')); // This is needed to mask "Untitled Event" events
}
foreach ($vElement->children() as &$property) {
/** @var Property $property */
switch ($property->name) {
case 'CREATED':
case 'DTSTART':
case 'RRULE':
case 'RECURRENCE-ID':
case 'RDATE':
case 'DURATION':
case 'DTEND':
case 'CLASS':
case 'EXRULE':
case 'EXDATE':
case 'UID':
break;
case 'SUMMARY':
$property->setValue($this->l10n->t('Busy'));
break;
default:
$vElement->__unset($property->name);
unset($property);
break;
}
}
}
}
/**
* @param Component\VCalendar $vObject
* @return void
*/
private function removeVAlarms(Component\VCalendar $vObject) {
$subcomponents = $vObject->getComponents();
foreach ($subcomponents as $subcomponent) {
unset($subcomponent->VALARM);
}
}
/**
* @return bool
*/
private function canWrite() {
if (isset($this->calendarInfo['{http://owncloud.org/ns}read-only'])) {
return !$this->calendarInfo['{http://owncloud.org/ns}read-only'];
}
return true;
}
public function getCalendarId(): int {
return (int)$this->objectData['calendarid'];
}
public function getPrincipalUri(): string {
return $this->calendarInfo['principaluri'];
}
public function getOwner(): ?string {
if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) {
return $this->calendarInfo['{http://owncloud.org/ns}owner-principal'];
}
return parent::getOwner();
}
}
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