Current File : //www/varak.net/nextcloud.varak.net/apps_old/apps/dav/lib/CalDAV/CalendarImpl.php
<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCA\DAV\CalDAV;
use OCA\DAV\CalDAV\Auth\CustomPrincipalPlugin;
use OCA\DAV\CalDAV\InvitationResponse\InvitationResponseServer;
use OCP\Calendar\Exceptions\CalendarException;
use OCP\Calendar\ICreateFromString;
use OCP\Calendar\IHandleImipMessage;
use OCP\Constants;
use Sabre\CalDAV\Xml\Property\ScheduleCalendarTransp;
use Sabre\DAV\Exception\Conflict;
use Sabre\VObject\Component\VCalendar;
use Sabre\VObject\Component\VEvent;
use Sabre\VObject\Component\VTimeZone;
use Sabre\VObject\ITip\Message;
use Sabre\VObject\Property;
use Sabre\VObject\Reader;
use function Sabre\Uri\split as uriSplit;
class CalendarImpl implements ICreateFromString, IHandleImipMessage {
private CalDavBackend $backend;
private Calendar $calendar;
/** @var array<string, mixed> */
private array $calendarInfo;
public function __construct(Calendar $calendar,
array $calendarInfo,
CalDavBackend $backend) {
$this->calendar = $calendar;
$this->calendarInfo = $calendarInfo;
$this->backend = $backend;
}
/**
* @return string defining the technical unique key
* @since 13.0.0
*/
public function getKey(): string {
return (string) $this->calendarInfo['id'];
}
/**
* {@inheritDoc}
*/
public function getUri(): string {
return $this->calendarInfo['uri'];
}
/**
* In comparison to getKey() this function returns a human readable (maybe translated) name
* @since 13.0.0
*/
public function getDisplayName(): ?string {
return $this->calendarInfo['{DAV:}displayname'];
}
/**
* Calendar color
* @since 13.0.0
*/
public function getDisplayColor(): ?string {
return $this->calendarInfo['{http://apple.com/ns/ical/}calendar-color'];
}
public function getSchedulingTransparency(): ?ScheduleCalendarTransp {
return $this->calendarInfo['{' . \OCA\DAV\CalDAV\Schedule\Plugin::NS_CALDAV . '}schedule-calendar-transp'];
}
public function getSchedulingTimezone(): ?VTimeZone {
$tzProp = '{' . \OCA\DAV\CalDAV\Schedule\Plugin::NS_CALDAV . '}calendar-timezone';
if (!isset($this->calendarInfo[$tzProp])) {
return null;
}
// This property contains a VCALENDAR with a single VTIMEZONE
/** @var string $timezoneProp */
$timezoneProp = $this->calendarInfo[$tzProp];
/** @var VCalendar $vobj */
$vobj = Reader::read($timezoneProp);
$components = $vobj->getComponents();
if(empty($components)) {
return null;
}
/** @var VTimeZone $vtimezone */
$vtimezone = $components[0];
return $vtimezone;
}
/**
* @param string $pattern which should match within the $searchProperties
* @param array $searchProperties defines the properties within the query pattern should match
* @param array $options - optional parameters:
* ['timerange' => ['start' => new DateTime(...), 'end' => new DateTime(...)]]
* @param int|null $limit - limit number of search results
* @param int|null $offset - offset for paging of search results
* @return array an array of events/journals/todos which are arrays of key-value-pairs
* @since 13.0.0
*/
public function search(string $pattern, array $searchProperties = [], array $options = [], $limit = null, $offset = null): array {
return $this->backend->search($this->calendarInfo, $pattern,
$searchProperties, $options, $limit, $offset);
}
/**
* @return int build up using \OCP\Constants
* @since 13.0.0
*/
public function getPermissions(): int {
$permissions = $this->calendar->getACL();
$result = 0;
foreach ($permissions as $permission) {
switch ($permission['privilege']) {
case '{DAV:}read':
$result |= Constants::PERMISSION_READ;
break;
case '{DAV:}write':
$result |= Constants::PERMISSION_CREATE;
$result |= Constants::PERMISSION_UPDATE;
break;
case '{DAV:}all':
$result |= Constants::PERMISSION_ALL;
break;
}
}
return $result;
}
/**
* @since 26.0.0
*/
public function isDeleted(): bool {
return $this->calendar->isDeleted();
}
/**
* Create a new calendar event for this calendar
* by way of an ICS string
*
* @param string $name the file name - needs to contain the .ics ending
* @param string $calendarData a string containing a valid VEVENT ics
*
* @throws CalendarException
*/
public function createFromString(string $name, string $calendarData): void {
$server = new InvitationResponseServer(false);
/** @var CustomPrincipalPlugin $plugin */
$plugin = $server->getServer()->getPlugin('auth');
// we're working around the previous implementation
// that only allowed the public system principal to be used
// so set the custom principal here
$plugin->setCurrentPrincipal($this->calendar->getPrincipalURI());
if (empty($this->calendarInfo['uri'])) {
throw new CalendarException('Could not write to calendar as URI parameter is missing');
}
// Build full calendar path
[, $user] = uriSplit($this->calendar->getPrincipalURI());
$fullCalendarFilename = sprintf('calendars/%s/%s/%s', $user, $this->calendarInfo['uri'], $name);
// Force calendar change URI
/** @var Schedule\Plugin $schedulingPlugin */
$schedulingPlugin = $server->getServer()->getPlugin('caldav-schedule');
$schedulingPlugin->setPathOfCalendarObjectChange($fullCalendarFilename);
$stream = fopen('php://memory', 'rb+');
fwrite($stream, $calendarData);
rewind($stream);
try {
$server->getServer()->createFile($fullCalendarFilename, $stream);
} catch (Conflict $e) {
throw new CalendarException('Could not create new calendar event: ' . $e->getMessage(), 0, $e);
} finally {
fclose($stream);
}
}
/**
* @throws CalendarException
*/
public function handleIMipMessage(string $name, string $calendarData): void {
$server = $this->getInvitationResponseServer();
/** @var CustomPrincipalPlugin $plugin */
$plugin = $server->getServer()->getPlugin('auth');
// we're working around the previous implementation
// that only allowed the public system principal to be used
// so set the custom principal here
$plugin->setCurrentPrincipal($this->calendar->getPrincipalURI());
if (empty($this->calendarInfo['uri'])) {
throw new CalendarException('Could not write to calendar as URI parameter is missing');
}
// Force calendar change URI
/** @var Schedule\Plugin $schedulingPlugin */
$schedulingPlugin = $server->getServer()->getPlugin('caldav-schedule');
// Let sabre handle the rest
$iTipMessage = new Message();
/** @var VCalendar $vObject */
$vObject = Reader::read($calendarData);
/** @var VEvent $vEvent */
$vEvent = $vObject->{'VEVENT'};
if ($vObject->{'METHOD'} === null) {
throw new CalendarException('No Method provided for scheduling data. Could not process message');
}
if (!isset($vEvent->{'ORGANIZER'}) || !isset($vEvent->{'ATTENDEE'})) {
throw new CalendarException('Could not process scheduling data, neccessary data missing from ICAL');
}
$organizer = $vEvent->{'ORGANIZER'}->getValue();
$attendee = $vEvent->{'ATTENDEE'}->getValue();
$iTipMessage->method = $vObject->{'METHOD'}->getValue();
if ($iTipMessage->method === 'REPLY') {
if ($server->isExternalAttendee($vEvent->{'ATTENDEE'}->getValue())) {
$iTipMessage->recipient = $organizer;
} else {
$iTipMessage->recipient = $attendee;
}
$iTipMessage->sender = $attendee;
} elseif ($iTipMessage->method === 'CANCEL') {
$iTipMessage->recipient = $attendee;
$iTipMessage->sender = $organizer;
}
$iTipMessage->uid = isset($vEvent->{'UID'}) ? $vEvent->{'UID'}->getValue() : '';
$iTipMessage->component = 'VEVENT';
$iTipMessage->sequence = isset($vEvent->{'SEQUENCE'}) ? (int)$vEvent->{'SEQUENCE'}->getValue() : 0;
$iTipMessage->message = $vObject;
$server->server->emit('schedule', [$iTipMessage]);
}
public function getInvitationResponseServer(): InvitationResponseServer {
return new InvitationResponseServer(false);
}
}
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