1264 lines
42 KiB
PHP
1264 lines
42 KiB
PHP
<?php
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/**
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* @author Scrutinizer Auto-Fixer <auto-fixer@scrutinizer-ci.com>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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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\CalDAV;
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use OCP\DB\QueryBuilder\IQueryBuilder;
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use OCA\DAV\Connector\Sabre\Principal;
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use OCA\DAV\DAV\Sharing\Backend;
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use Sabre\CalDAV\Backend\AbstractBackend;
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use Sabre\CalDAV\Backend\SchedulingSupport;
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use Sabre\CalDAV\Backend\SubscriptionSupport;
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use Sabre\CalDAV\Backend\SyncSupport;
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use Sabre\CalDAV\Plugin;
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use Sabre\CalDAV\Xml\Property\ScheduleCalendarTransp;
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use Sabre\CalDAV\Xml\Property\SupportedCalendarComponentSet;
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use Sabre\DAV;
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use Sabre\DAV\Exception\Forbidden;
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use Sabre\HTTP\URLUtil;
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use Sabre\VObject\DateTimeParser;
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use Sabre\VObject\Reader;
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use Sabre\VObject\RecurrenceIterator;
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/**
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* Class CalDavBackend
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*
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* Code is heavily inspired by https://github.com/fruux/sabre-dav/blob/master/lib/CalDAV/Backend/PDO.php
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*
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* @package OCA\DAV\CalDAV
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*/
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class CalDavBackend extends AbstractBackend implements SyncSupport, SubscriptionSupport, SchedulingSupport {
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/**
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* We need to specify a max date, because we need to stop *somewhere*
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*
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* On 32 bit system the maximum for a signed integer is 2147483647, so
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* MAX_DATE cannot be higher than date('Y-m-d', 2147483647) which results
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* in 2038-01-19 to avoid problems when the date is converted
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* to a unix timestamp.
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*/
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const MAX_DATE = '2038-01-01';
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/**
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* List of CalDAV properties, and how they map to database fieldnames
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* Add your own properties by simply adding on to this array.
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*
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* Note that only string-based properties are supported here.
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*
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* @var array
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*/
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public $propertyMap = [
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'{DAV:}displayname' => 'displayname',
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'{urn:ietf:params:xml:ns:caldav}calendar-description' => 'description',
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'{urn:ietf:params:xml:ns:caldav}calendar-timezone' => 'timezone',
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'{http://apple.com/ns/ical/}calendar-order' => 'calendarorder',
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'{http://apple.com/ns/ical/}calendar-color' => 'calendarcolor',
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];
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/**
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* List of subscription properties, and how they map to database fieldnames.
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*
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* @var array
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*/
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public $subscriptionPropertyMap = [
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'{DAV:}displayname' => 'displayname',
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'{http://apple.com/ns/ical/}refreshrate' => 'refreshrate',
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'{http://apple.com/ns/ical/}calendar-order' => 'calendarorder',
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'{http://apple.com/ns/ical/}calendar-color' => 'calendarcolor',
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'{http://calendarserver.org/ns/}subscribed-strip-todos' => 'striptodos',
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'{http://calendarserver.org/ns/}subscribed-strip-alarms' => 'stripalarms',
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'{http://calendarserver.org/ns/}subscribed-strip-attachments' => 'stripattachments',
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];
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/** @var \OCP\IDBConnection */
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private $db;
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/** @var Backend */
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private $sharingBackend;
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/** @var Principal */
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private $principalBackend;
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/**
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* CalDavBackend constructor.
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*
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* @param \OCP\IDBConnection $db
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*/
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public function __construct(\OCP\IDBConnection $db, Principal $principalBackend) {
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$this->db = $db;
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$this->principalBackend = $principalBackend;
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$this->sharingBackend = new Backend($this->db, $principalBackend, 'calendar');
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}
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/**
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* Returns a list of calendars for a principal.
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*
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* Every project is an array with the following keys:
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* * id, a unique id that will be used by other functions to modify the
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* calendar. This can be the same as the uri or a database key.
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* * uri, which the basename of the uri with which the calendar is
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* accessed.
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* * principaluri. The owner of the calendar. Almost always the same as
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* principalUri passed to this method.
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*
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* Furthermore it can contain webdav properties in clark notation. A very
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* common one is '{DAV:}displayname'.
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*
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* Many clients also require:
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* {urn:ietf:params:xml:ns:caldav}supported-calendar-component-set
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* For this property, you can just return an instance of
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* Sabre\CalDAV\Property\SupportedCalendarComponentSet.
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*
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* If you return {http://sabredav.org/ns}read-only and set the value to 1,
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* ACL will automatically be put in read-only mode.
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*
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* @param string $principalUri
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* @return array
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*/
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function getCalendarsForUser($principalUri) {
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$fields = array_values($this->propertyMap);
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$fields[] = 'id';
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$fields[] = 'uri';
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$fields[] = 'synctoken';
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$fields[] = 'components';
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$fields[] = 'principaluri';
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$fields[] = 'transparent';
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// Making fields a comma-delimited list
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$query = $this->db->getQueryBuilder();
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$query->select($fields)->from('calendars')
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->where($query->expr()->eq('principaluri', $query->createNamedParameter($principalUri)))
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->orderBy('calendarorder', 'ASC');
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$stmt = $query->execute();
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$calendars = [];
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while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
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$components = [];
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if ($row['components']) {
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$components = explode(',',$row['components']);
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}
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$calendar = [
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'id' => $row['id'],
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'uri' => $row['uri'],
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'principaluri' => $row['principaluri'],
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'{' . Plugin::NS_CALENDARSERVER . '}getctag' => 'http://sabre.io/ns/sync/' . ($row['synctoken']?$row['synctoken']:'0'),
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'{http://sabredav.org/ns}sync-token' => $row['synctoken']?$row['synctoken']:'0',
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'{' . Plugin::NS_CALDAV . '}supported-calendar-component-set' => new SupportedCalendarComponentSet($components),
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'{' . Plugin::NS_CALDAV . '}schedule-calendar-transp' => new ScheduleCalendarTransp($row['transparent']?'transparent':'opaque'),
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];
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foreach($this->propertyMap as $xmlName=>$dbName) {
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$calendar[$xmlName] = $row[$dbName];
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}
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if (!isset($calendars[$calendar['id']])) {
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$calendars[$calendar['id']] = $calendar;
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}
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}
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$stmt->closeCursor();
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// query for shared calendars
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$principals = $this->principalBackend->getGroupMembership($principalUri);
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$principals[]= $principalUri;
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$fields = array_values($this->propertyMap);
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$fields[] = 'a.id';
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$fields[] = 'a.uri';
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$fields[] = 'a.synctoken';
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$fields[] = 'a.components';
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$fields[] = 'a.principaluri';
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$fields[] = 'a.transparent';
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$query = $this->db->getQueryBuilder();
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$result = $query->select($fields)
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->from('dav_shares', 's')
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->join('s', 'calendars', 'a', $query->expr()->eq('s.resourceid', 'a.id'))
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->where($query->expr()->in('s.principaluri', $query->createParameter('principaluri')))
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->andWhere($query->expr()->eq('s.type', $query->createParameter('type')))
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->setParameter('type', 'calendar')
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->setParameter('principaluri', $principals, \Doctrine\DBAL\Connection::PARAM_STR_ARRAY)
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->execute();
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while($row = $result->fetch()) {
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list(, $name) = URLUtil::splitPath($row['principaluri']);
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$uri = $row['uri'] . '_shared_by_' . $name;
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$row['displayname'] = $row['displayname'] . "($name)";
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$components = [];
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if ($row['components']) {
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$components = explode(',',$row['components']);
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}
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$calendar = [
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'id' => $row['id'],
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'uri' => $uri,
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'principaluri' => $principalUri,
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'{' . Plugin::NS_CALENDARSERVER . '}getctag' => 'http://sabre.io/ns/sync/' . ($row['synctoken']?$row['synctoken']:'0'),
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'{http://sabredav.org/ns}sync-token' => $row['synctoken']?$row['synctoken']:'0',
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'{' . Plugin::NS_CALDAV . '}supported-calendar-component-set' => new SupportedCalendarComponentSet($components),
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'{' . Plugin::NS_CALDAV . '}schedule-calendar-transp' => new ScheduleCalendarTransp($row['transparent']?'transparent':'opaque'),
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'{' . \OCA\DAV\DAV\Sharing\Plugin::NS_OWNCLOUD . '}owner-principal' => $row['principaluri'],
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];
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foreach($this->propertyMap as $xmlName=>$dbName) {
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$calendar[$xmlName] = $row[$dbName];
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}
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if (!isset($calendars[$calendar['id']])) {
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$calendars[$calendar['id']] = $calendar;
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}
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}
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$result->closeCursor();
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return array_values($calendars);
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}
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/**
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* Creates a new calendar for a principal.
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*
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* If the creation was a success, an id must be returned that can be used to reference
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* this calendar in other methods, such as updateCalendar.
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*
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* @param string $principalUri
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* @param string $calendarUri
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* @param array $properties
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* @return void
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*/
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function createCalendar($principalUri, $calendarUri, array $properties) {
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$values = [
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'principaluri' => $principalUri,
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'uri' => $calendarUri,
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'synctoken' => 1,
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'transparent' => 0,
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'components' => 'VEVENT,VTODO',
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'displayname' => $calendarUri
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];
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// Default value
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$sccs = '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set';
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if (isset($properties[$sccs])) {
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if (!($properties[$sccs] instanceof SupportedCalendarComponentSet)) {
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throw new DAV\Exception('The ' . $sccs . ' property must be of type: \Sabre\CalDAV\Property\SupportedCalendarComponentSet');
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}
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$values['components'] = implode(',',$properties[$sccs]->getValue());
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}
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$transp = '{' . Plugin::NS_CALDAV . '}schedule-calendar-transp';
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if (isset($properties[$transp])) {
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$values['transparent'] = $properties[$transp]->getValue()==='transparent';
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}
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foreach($this->propertyMap as $xmlName=>$dbName) {
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if (isset($properties[$xmlName])) {
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$values[$dbName] = $properties[$xmlName];
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}
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}
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$query = $this->db->getQueryBuilder();
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$query->insert('calendars');
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foreach($values as $column => $value) {
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$query->setValue($column, $query->createNamedParameter($value));
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}
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$query->execute();
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}
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/**
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* Updates properties for a calendar.
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*
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* The list of mutations is stored in a Sabre\DAV\PropPatch object.
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* To do the actual updates, you must tell this object which properties
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* you're going to process with the handle() method.
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*
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* Calling the handle method is like telling the PropPatch object "I
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* promise I can handle updating this property".
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*
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* Read the PropPatch documentation for more info and examples.
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*
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* @param \Sabre\DAV\PropPatch $propPatch
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* @return void
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*/
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function updateCalendar($calendarId, \Sabre\DAV\PropPatch $propPatch) {
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$supportedProperties = array_keys($this->propertyMap);
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$supportedProperties[] = '{' . Plugin::NS_CALDAV . '}schedule-calendar-transp';
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$propPatch->handle($supportedProperties, function($mutations) use ($calendarId) {
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$newValues = [];
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foreach ($mutations as $propertyName => $propertyValue) {
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switch ($propertyName) {
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case '{' . Plugin::NS_CALDAV . '}schedule-calendar-transp' :
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$fieldName = 'transparent';
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$newValues[$fieldName] = $propertyValue->getValue() === 'transparent';
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break;
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default :
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$fieldName = $this->propertyMap[$propertyName];
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$newValues[$fieldName] = $propertyValue;
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break;
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}
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}
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$query = $this->db->getQueryBuilder();
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$query->update('calendars');
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foreach ($newValues as $fieldName => $value) {
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$query->set($fieldName, $query->createNamedParameter($value));
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}
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$query->where($query->expr()->eq('id', $query->createNamedParameter($calendarId)));
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$query->execute();
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$this->addChange($calendarId, "", 2);
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return true;
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});
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}
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/**
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* Delete a calendar and all it's objects
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*
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* @param mixed $calendarId
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* @return void
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*/
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function deleteCalendar($calendarId) {
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$stmt = $this->db->prepare('DELETE FROM `*PREFIX*calendarobjects` WHERE `calendarid` = ?');
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$stmt->execute([$calendarId]);
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$stmt = $this->db->prepare('DELETE FROM `*PREFIX*calendars` WHERE `id` = ?');
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$stmt->execute([$calendarId]);
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$stmt = $this->db->prepare('DELETE FROM `*PREFIX*calendarchanges` WHERE `calendarid` = ?');
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$stmt->execute([$calendarId]);
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$this->sharingBackend->deleteAllShares($calendarId);
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}
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/**
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* Returns all calendar objects within a calendar.
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*
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* Every item contains an array with the following keys:
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* * calendardata - The iCalendar-compatible calendar data
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* * uri - a unique key which will be used to construct the uri. This can
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* be any arbitrary string, but making sure it ends with '.ics' is a
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* good idea. This is only the basename, or filename, not the full
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* path.
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* * lastmodified - a timestamp of the last modification time
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* * etag - An arbitrary string, surrounded by double-quotes. (e.g.:
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* '"abcdef"')
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* * size - The size of the calendar objects, in bytes.
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* * component - optional, a string containing the type of object, such
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* as 'vevent' or 'vtodo'. If specified, this will be used to populate
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* the Content-Type header.
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*
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* Note that the etag is optional, but it's highly encouraged to return for
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* speed reasons.
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*
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* The calendardata is also optional. If it's not returned
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* 'getCalendarObject' will be called later, which *is* expected to return
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* calendardata.
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*
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* If neither etag or size are specified, the calendardata will be
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* used/fetched to determine these numbers. If both are specified the
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* amount of times this is needed is reduced by a great degree.
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*
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* @param mixed $calendarId
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* @return array
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*/
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function getCalendarObjects($calendarId) {
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$query = $this->db->getQueryBuilder();
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$query->select(['id', 'uri', 'lastmodified', 'etag', 'calendarid', 'size', 'componenttype'])
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->from('calendarobjects')
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->where($query->expr()->eq('calendarid', $query->createNamedParameter($calendarId)));
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$stmt = $query->execute();
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$result = [];
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foreach($stmt->fetchAll(\PDO::FETCH_ASSOC) as $row) {
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$result[] = [
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'id' => $row['id'],
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'uri' => $row['uri'],
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'lastmodified' => $row['lastmodified'],
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'etag' => '"' . $row['etag'] . '"',
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'calendarid' => $row['calendarid'],
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'size' => (int)$row['size'],
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'component' => strtolower($row['componenttype']),
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];
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}
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return $result;
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}
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/**
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* Returns information from a single calendar object, based on it's object
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* uri.
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*
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* The object uri is only the basename, or filename and not a full path.
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*
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* The returned array must have the same keys as getCalendarObjects. The
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* 'calendardata' object is required here though, while it's not required
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* for getCalendarObjects.
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*
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* This method must return null if the object did not exist.
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*
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* @param mixed $calendarId
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* @param string $objectUri
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* @return array|null
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*/
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function getCalendarObject($calendarId, $objectUri) {
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$query = $this->db->getQueryBuilder();
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$query->select(['id', 'uri', 'lastmodified', 'etag', 'calendarid', 'size', 'calendardata', 'componenttype'])
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->from('calendarobjects')
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->where($query->expr()->eq('calendarid', $query->createNamedParameter($calendarId)))
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->andWhere($query->expr()->eq('uri', $query->createNamedParameter($objectUri)));
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$stmt = $query->execute();
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$row = $stmt->fetch(\PDO::FETCH_ASSOC);
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if(!$row) return null;
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return [
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'id' => $row['id'],
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'uri' => $row['uri'],
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'lastmodified' => $row['lastmodified'],
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'etag' => '"' . $row['etag'] . '"',
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'calendarid' => $row['calendarid'],
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'size' => (int)$row['size'],
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'calendardata' => $this->readBlob($row['calendardata']),
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'component' => strtolower($row['componenttype']),
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];
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}
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/**
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* Returns a list of calendar objects.
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*
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* This method should work identical to getCalendarObject, but instead
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* return all the calendar objects in the list as an array.
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*
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* If the backend supports this, it may allow for some speed-ups.
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*
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* @param mixed $calendarId
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* @param string[] $uris
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* @return array
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*/
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function getMultipleCalendarObjects($calendarId, array $uris) {
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$query = $this->db->getQueryBuilder();
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$query->select(['id', 'uri', 'lastmodified', 'etag', 'calendarid', 'size', 'calendardata', 'componenttype'])
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->from('calendarobjects')
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->where($query->expr()->eq('calendarid', $query->createNamedParameter($calendarId)))
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->andWhere($query->expr()->in('uri', $query->createParameter('uri')))
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->setParameter('uri', $uris, IQueryBuilder::PARAM_STR_ARRAY);
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$stmt = $query->execute();
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$result = [];
|
|
while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
|
|
|
|
$result[] = [
|
|
'id' => $row['id'],
|
|
'uri' => $row['uri'],
|
|
'lastmodified' => $row['lastmodified'],
|
|
'etag' => '"' . $row['etag'] . '"',
|
|
'calendarid' => $row['calendarid'],
|
|
'size' => (int)$row['size'],
|
|
'calendardata' => $this->readBlob($row['calendardata']),
|
|
'component' => strtolower($row['componenttype']),
|
|
];
|
|
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Creates a new calendar object.
|
|
*
|
|
* The object uri is only the basename, or filename and not a full path.
|
|
*
|
|
* It is possible return an etag from this function, which will be used in
|
|
* the response to this PUT request. Note that the ETag must be surrounded
|
|
* by double-quotes.
|
|
*
|
|
* However, you should only really return this ETag if you don't mangle the
|
|
* calendar-data. If the result of a subsequent GET to this object is not
|
|
* the exact same as this request body, you should omit the ETag.
|
|
*
|
|
* @param mixed $calendarId
|
|
* @param string $objectUri
|
|
* @param string $calendarData
|
|
* @return string
|
|
*/
|
|
function createCalendarObject($calendarId, $objectUri, $calendarData) {
|
|
$extraData = $this->getDenormalizedData($calendarData);
|
|
|
|
$query = $this->db->getQueryBuilder();
|
|
$query->insert('calendarobjects')
|
|
->values([
|
|
'calendarid' => $query->createNamedParameter($calendarId),
|
|
'uri' => $query->createNamedParameter($objectUri),
|
|
'calendardata' => $query->createNamedParameter($calendarData, \PDO::PARAM_LOB),
|
|
'lastmodified' => $query->createNamedParameter(time()),
|
|
'etag' => $query->createNamedParameter($extraData['etag']),
|
|
'size' => $query->createNamedParameter($extraData['size']),
|
|
'componenttype' => $query->createNamedParameter($extraData['componentType']),
|
|
'firstoccurence' => $query->createNamedParameter($extraData['firstOccurence']),
|
|
'lastoccurence' => $query->createNamedParameter($extraData['lastOccurence']),
|
|
'uid' => $query->createNamedParameter($extraData['uid']),
|
|
])
|
|
->execute();
|
|
|
|
$this->addChange($calendarId, $objectUri, 1);
|
|
|
|
return '"' . $extraData['etag'] . '"';
|
|
}
|
|
|
|
/**
|
|
* Updates an existing calendarobject, based on it's uri.
|
|
*
|
|
* The object uri is only the basename, or filename and not a full path.
|
|
*
|
|
* It is possible return an etag from this function, which will be used in
|
|
* the response to this PUT request. Note that the ETag must be surrounded
|
|
* by double-quotes.
|
|
*
|
|
* However, you should only really return this ETag if you don't mangle the
|
|
* calendar-data. If the result of a subsequent GET to this object is not
|
|
* the exact same as this request body, you should omit the ETag.
|
|
*
|
|
* @param mixed $calendarId
|
|
* @param string $objectUri
|
|
* @param string $calendarData
|
|
* @return string
|
|
*/
|
|
function updateCalendarObject($calendarId, $objectUri, $calendarData) {
|
|
$extraData = $this->getDenormalizedData($calendarData);
|
|
|
|
$query = $this->db->getQueryBuilder();
|
|
$query->update('calendarobjects')
|
|
->set('calendardata', $query->createNamedParameter($calendarData, \PDO::PARAM_LOB))
|
|
->set('lastmodified', $query->createNamedParameter(time()))
|
|
->set('etag', $query->createNamedParameter($extraData['etag']))
|
|
->set('size', $query->createNamedParameter($extraData['size']))
|
|
->set('componenttype', $query->createNamedParameter($extraData['componentType']))
|
|
->set('firstoccurence', $query->createNamedParameter($extraData['firstOccurence']))
|
|
->set('lastoccurence', $query->createNamedParameter($extraData['lastOccurence']))
|
|
->set('uid', $query->createNamedParameter($extraData['uid']))
|
|
->where($query->expr()->eq('calendarid', $query->createNamedParameter($calendarId)))
|
|
->andWhere($query->expr()->eq('uri', $query->createNamedParameter($objectUri)))
|
|
->execute();
|
|
|
|
$this->addChange($calendarId, $objectUri, 2);
|
|
|
|
return '"' . $extraData['etag'] . '"';
|
|
}
|
|
|
|
/**
|
|
* Deletes an existing calendar object.
|
|
*
|
|
* The object uri is only the basename, or filename and not a full path.
|
|
*
|
|
* @param mixed $calendarId
|
|
* @param string $objectUri
|
|
* @return void
|
|
*/
|
|
function deleteCalendarObject($calendarId, $objectUri) {
|
|
$stmt = $this->db->prepare('DELETE FROM `*PREFIX*calendarobjects` WHERE `calendarid` = ? AND `uri` = ?');
|
|
$stmt->execute([$calendarId, $objectUri]);
|
|
|
|
$this->addChange($calendarId, $objectUri, 3);
|
|
}
|
|
|
|
/**
|
|
* Performs a calendar-query on the contents of this calendar.
|
|
*
|
|
* The calendar-query is defined in RFC4791 : CalDAV. Using the
|
|
* calendar-query it is possible for a client to request a specific set of
|
|
* object, based on contents of iCalendar properties, date-ranges and
|
|
* iCalendar component types (VTODO, VEVENT).
|
|
*
|
|
* This method should just return a list of (relative) urls that match this
|
|
* query.
|
|
*
|
|
* The list of filters are specified as an array. The exact array is
|
|
* documented by Sabre\CalDAV\CalendarQueryParser.
|
|
*
|
|
* Note that it is extremely likely that getCalendarObject for every path
|
|
* returned from this method will be called almost immediately after. You
|
|
* may want to anticipate this to speed up these requests.
|
|
*
|
|
* This method provides a default implementation, which parses *all* the
|
|
* iCalendar objects in the specified calendar.
|
|
*
|
|
* This default may well be good enough for personal use, and calendars
|
|
* that aren't very large. But if you anticipate high usage, big calendars
|
|
* or high loads, you are strongly adviced to optimize certain paths.
|
|
*
|
|
* The best way to do so is override this method and to optimize
|
|
* specifically for 'common filters'.
|
|
*
|
|
* Requests that are extremely common are:
|
|
* * requests for just VEVENTS
|
|
* * requests for just VTODO
|
|
* * requests with a time-range-filter on either VEVENT or VTODO.
|
|
*
|
|
* ..and combinations of these requests. It may not be worth it to try to
|
|
* handle every possible situation and just rely on the (relatively
|
|
* easy to use) CalendarQueryValidator to handle the rest.
|
|
*
|
|
* Note that especially time-range-filters may be difficult to parse. A
|
|
* time-range filter specified on a VEVENT must for instance also handle
|
|
* recurrence rules correctly.
|
|
* A good example of how to interprete all these filters can also simply
|
|
* be found in Sabre\CalDAV\CalendarQueryFilter. This class is as correct
|
|
* as possible, so it gives you a good idea on what type of stuff you need
|
|
* to think of.
|
|
*
|
|
* @param mixed $calendarId
|
|
* @param array $filters
|
|
* @return array
|
|
*/
|
|
function calendarQuery($calendarId, array $filters) {
|
|
$componentType = null;
|
|
$requirePostFilter = true;
|
|
$timeRange = null;
|
|
|
|
// if no filters were specified, we don't need to filter after a query
|
|
if (!$filters['prop-filters'] && !$filters['comp-filters']) {
|
|
$requirePostFilter = false;
|
|
}
|
|
|
|
// Figuring out if there's a component filter
|
|
if (count($filters['comp-filters']) > 0 && !$filters['comp-filters'][0]['is-not-defined']) {
|
|
$componentType = $filters['comp-filters'][0]['name'];
|
|
|
|
// Checking if we need post-filters
|
|
if (!$filters['prop-filters'] && !$filters['comp-filters'][0]['comp-filters'] && !$filters['comp-filters'][0]['time-range'] && !$filters['comp-filters'][0]['prop-filters']) {
|
|
$requirePostFilter = false;
|
|
}
|
|
// There was a time-range filter
|
|
if ($componentType == 'VEVENT' && isset($filters['comp-filters'][0]['time-range'])) {
|
|
$timeRange = $filters['comp-filters'][0]['time-range'];
|
|
|
|
// If start time OR the end time is not specified, we can do a
|
|
// 100% accurate mysql query.
|
|
if (!$filters['prop-filters'] && !$filters['comp-filters'][0]['comp-filters'] && !$filters['comp-filters'][0]['prop-filters'] && (!$timeRange['start'] || !$timeRange['end'])) {
|
|
$requirePostFilter = false;
|
|
}
|
|
}
|
|
|
|
}
|
|
$columns = ['uri'];
|
|
if ($requirePostFilter) {
|
|
$columns = ['uri', 'calendardata'];
|
|
}
|
|
$query = $this->db->getQueryBuilder();
|
|
$query->select($columns)
|
|
->from('calendarobjects')
|
|
->where($query->expr()->eq('calendarid', $query->createNamedParameter($calendarId)));
|
|
|
|
if ($componentType) {
|
|
$query->andWhere($query->expr()->eq('componenttype', $query->createNamedParameter($componentType)));
|
|
}
|
|
|
|
if ($timeRange && $timeRange['start']) {
|
|
$query->andWhere($query->expr()->gt('lastoccurence', $query->createNamedParameter($timeRange['start']->getTimeStamp())));
|
|
}
|
|
if ($timeRange && $timeRange['end']) {
|
|
$query->andWhere($query->expr()->lt('firstoccurence', $query->createNamedParameter($timeRange['end']->getTimeStamp())));
|
|
}
|
|
|
|
$stmt = $query->execute();
|
|
|
|
$result = [];
|
|
while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
|
|
if ($requirePostFilter) {
|
|
if (!$this->validateFilterForObject($row, $filters)) {
|
|
continue;
|
|
}
|
|
}
|
|
$result[] = $row['uri'];
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Searches through all of a users calendars and calendar objects to find
|
|
* an object with a specific UID.
|
|
*
|
|
* This method should return the path to this object, relative to the
|
|
* calendar home, so this path usually only contains two parts:
|
|
*
|
|
* calendarpath/objectpath.ics
|
|
*
|
|
* If the uid is not found, return null.
|
|
*
|
|
* This method should only consider * objects that the principal owns, so
|
|
* any calendars owned by other principals that also appear in this
|
|
* collection should be ignored.
|
|
*
|
|
* @param string $principalUri
|
|
* @param string $uid
|
|
* @return string|null
|
|
*/
|
|
function getCalendarObjectByUID($principalUri, $uid) {
|
|
|
|
$query = $this->db->getQueryBuilder();
|
|
$query->select([$query->createFunction('c.`uri` AS `calendaruri`'), $query->createFunction('co.`uri` AS `objecturi`')])
|
|
->from('calendarobjects', 'co')
|
|
->leftJoin('co', 'calendars', 'c', 'co.`calendarid` = c.`id`')
|
|
->where($query->expr()->eq('c.principaluri', $query->createNamedParameter($principalUri)))
|
|
->andWhere($query->expr()->eq('co.uid', $query->createNamedParameter($uid)));
|
|
|
|
$stmt = $query->execute();
|
|
|
|
if ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
|
|
return $row['calendaruri'] . '/' . $row['objecturi'];
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* The getChanges method returns all the changes that have happened, since
|
|
* the specified syncToken in the specified calendar.
|
|
*
|
|
* This function should return an array, such as the following:
|
|
*
|
|
* [
|
|
* 'syncToken' => 'The current synctoken',
|
|
* 'added' => [
|
|
* 'new.txt',
|
|
* ],
|
|
* 'modified' => [
|
|
* 'modified.txt',
|
|
* ],
|
|
* 'deleted' => [
|
|
* 'foo.php.bak',
|
|
* 'old.txt'
|
|
* ]
|
|
* );
|
|
*
|
|
* The returned syncToken property should reflect the *current* syncToken
|
|
* of the calendar, as reported in the {http://sabredav.org/ns}sync-token
|
|
* property This is * needed here too, to ensure the operation is atomic.
|
|
*
|
|
* If the $syncToken argument is specified as null, this is an initial
|
|
* sync, and all members should be reported.
|
|
*
|
|
* The modified property is an array of nodenames that have changed since
|
|
* the last token.
|
|
*
|
|
* The deleted property is an array with nodenames, that have been deleted
|
|
* from collection.
|
|
*
|
|
* The $syncLevel argument is basically the 'depth' of the report. If it's
|
|
* 1, you only have to report changes that happened only directly in
|
|
* immediate descendants. If it's 2, it should also include changes from
|
|
* the nodes below the child collections. (grandchildren)
|
|
*
|
|
* The $limit argument allows a client to specify how many results should
|
|
* be returned at most. If the limit is not specified, it should be treated
|
|
* as infinite.
|
|
*
|
|
* If the limit (infinite or not) is higher than you're willing to return,
|
|
* you should throw a Sabre\DAV\Exception\TooMuchMatches() exception.
|
|
*
|
|
* If the syncToken is expired (due to data cleanup) or unknown, you must
|
|
* return null.
|
|
*
|
|
* The limit is 'suggestive'. You are free to ignore it.
|
|
*
|
|
* @param string $calendarId
|
|
* @param string $syncToken
|
|
* @param int $syncLevel
|
|
* @param int $limit
|
|
* @return array
|
|
*/
|
|
function getChangesForCalendar($calendarId, $syncToken, $syncLevel, $limit = null) {
|
|
// Current synctoken
|
|
$stmt = $this->db->prepare('SELECT `synctoken` FROM `*PREFIX*calendars` WHERE `id` = ?');
|
|
$stmt->execute([ $calendarId ]);
|
|
$currentToken = $stmt->fetchColumn(0);
|
|
|
|
if (is_null($currentToken)) {
|
|
return null;
|
|
}
|
|
|
|
$result = [
|
|
'syncToken' => $currentToken,
|
|
'added' => [],
|
|
'modified' => [],
|
|
'deleted' => [],
|
|
];
|
|
|
|
if ($syncToken) {
|
|
|
|
$query = "SELECT `uri`, `operation` FROM `*PREFIX*calendarchanges` WHERE `synctoken` >= ? AND `synctoken` < ? AND `calendarid` = ? ORDER BY `synctoken`";
|
|
if ($limit>0) {
|
|
$query.= " `LIMIT` " . (int)$limit;
|
|
}
|
|
|
|
// Fetching all changes
|
|
$stmt = $this->db->prepare($query);
|
|
$stmt->execute([$syncToken, $currentToken, $calendarId]);
|
|
|
|
$changes = [];
|
|
|
|
// This loop ensures that any duplicates are overwritten, only the
|
|
// last change on a node is relevant.
|
|
while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
|
|
|
|
$changes[$row['uri']] = $row['operation'];
|
|
|
|
}
|
|
|
|
foreach($changes as $uri => $operation) {
|
|
|
|
switch($operation) {
|
|
case 1 :
|
|
$result['added'][] = $uri;
|
|
break;
|
|
case 2 :
|
|
$result['modified'][] = $uri;
|
|
break;
|
|
case 3 :
|
|
$result['deleted'][] = $uri;
|
|
break;
|
|
}
|
|
|
|
}
|
|
} else {
|
|
// No synctoken supplied, this is the initial sync.
|
|
$query = "SELECT `uri` FROM `*PREFIX*calendarobjects` WHERE `calendarid` = ?";
|
|
$stmt = $this->db->prepare($query);
|
|
$stmt->execute([$calendarId]);
|
|
|
|
$result['added'] = $stmt->fetchAll(\PDO::FETCH_COLUMN);
|
|
}
|
|
return $result;
|
|
|
|
}
|
|
|
|
/**
|
|
* Returns a list of subscriptions for a principal.
|
|
*
|
|
* Every subscription is an array with the following keys:
|
|
* * id, a unique id that will be used by other functions to modify the
|
|
* subscription. This can be the same as the uri or a database key.
|
|
* * uri. This is just the 'base uri' or 'filename' of the subscription.
|
|
* * principaluri. The owner of the subscription. Almost always the same as
|
|
* principalUri passed to this method.
|
|
*
|
|
* Furthermore, all the subscription info must be returned too:
|
|
*
|
|
* 1. {DAV:}displayname
|
|
* 2. {http://apple.com/ns/ical/}refreshrate
|
|
* 3. {http://calendarserver.org/ns/}subscribed-strip-todos (omit if todos
|
|
* should not be stripped).
|
|
* 4. {http://calendarserver.org/ns/}subscribed-strip-alarms (omit if alarms
|
|
* should not be stripped).
|
|
* 5. {http://calendarserver.org/ns/}subscribed-strip-attachments (omit if
|
|
* attachments should not be stripped).
|
|
* 6. {http://calendarserver.org/ns/}source (Must be a
|
|
* Sabre\DAV\Property\Href).
|
|
* 7. {http://apple.com/ns/ical/}calendar-color
|
|
* 8. {http://apple.com/ns/ical/}calendar-order
|
|
* 9. {urn:ietf:params:xml:ns:caldav}supported-calendar-component-set
|
|
* (should just be an instance of
|
|
* Sabre\CalDAV\Property\SupportedCalendarComponentSet, with a bunch of
|
|
* default components).
|
|
*
|
|
* @param string $principalUri
|
|
* @return array
|
|
*/
|
|
function getSubscriptionsForUser($principalUri) {
|
|
$fields = array_values($this->subscriptionPropertyMap);
|
|
$fields[] = 'id';
|
|
$fields[] = 'uri';
|
|
$fields[] = 'source';
|
|
$fields[] = 'principaluri';
|
|
$fields[] = 'lastmodified';
|
|
|
|
$query = $this->db->getQueryBuilder();
|
|
$query->select($fields)
|
|
->from('calendarsubscriptions')
|
|
->where($query->expr()->eq('principaluri', $query->createNamedParameter($principalUri)))
|
|
->orderBy('calendarorder', 'asc');
|
|
$stmt =$query->execute();
|
|
|
|
$subscriptions = [];
|
|
while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
|
|
|
|
$subscription = [
|
|
'id' => $row['id'],
|
|
'uri' => $row['uri'],
|
|
'principaluri' => $row['principaluri'],
|
|
'source' => $row['source'],
|
|
'lastmodified' => $row['lastmodified'],
|
|
|
|
'{' . Plugin::NS_CALDAV . '}supported-calendar-component-set' => new SupportedCalendarComponentSet(['VTODO', 'VEVENT']),
|
|
];
|
|
|
|
foreach($this->subscriptionPropertyMap as $xmlName=>$dbName) {
|
|
if (!is_null($row[$dbName])) {
|
|
$subscription[$xmlName] = $row[$dbName];
|
|
}
|
|
}
|
|
|
|
$subscriptions[] = $subscription;
|
|
|
|
}
|
|
|
|
return $subscriptions;
|
|
}
|
|
|
|
/**
|
|
* Creates a new subscription for a principal.
|
|
*
|
|
* If the creation was a success, an id must be returned that can be used to reference
|
|
* this subscription in other methods, such as updateSubscription.
|
|
*
|
|
* @param string $principalUri
|
|
* @param string $uri
|
|
* @param array $properties
|
|
* @return mixed
|
|
*/
|
|
function createSubscription($principalUri, $uri, array $properties) {
|
|
|
|
if (!isset($properties['{http://calendarserver.org/ns/}source'])) {
|
|
throw new Forbidden('The {http://calendarserver.org/ns/}source property is required when creating subscriptions');
|
|
}
|
|
|
|
$values = [
|
|
'principaluri' => $principalUri,
|
|
'uri' => $uri,
|
|
'source' => $properties['{http://calendarserver.org/ns/}source']->getHref(),
|
|
'lastmodified' => time(),
|
|
];
|
|
|
|
foreach($this->subscriptionPropertyMap as $xmlName=>$dbName) {
|
|
if (isset($properties[$xmlName])) {
|
|
|
|
$values[$dbName] = $properties[$xmlName];
|
|
$fieldNames[] = $dbName;
|
|
}
|
|
}
|
|
|
|
$query = $this->db->getQueryBuilder();
|
|
$query->insert('calendarsubscriptions')
|
|
->values([
|
|
'principaluri' => $query->createNamedParameter($values['principaluri']),
|
|
'uri' => $query->createNamedParameter($values['uri']),
|
|
'source' => $query->createNamedParameter($values['source']),
|
|
'lastmodified' => $query->createNamedParameter($values['lastmodified']),
|
|
])
|
|
->execute();
|
|
|
|
return $this->db->lastInsertId('*PREFIX*calendarsubscriptions');
|
|
}
|
|
|
|
/**
|
|
* Updates a subscription
|
|
*
|
|
* The list of mutations is stored in a Sabre\DAV\PropPatch object.
|
|
* To do the actual updates, you must tell this object which properties
|
|
* you're going to process with the handle() method.
|
|
*
|
|
* Calling the handle method is like telling the PropPatch object "I
|
|
* promise I can handle updating this property".
|
|
*
|
|
* Read the PropPatch documentation for more info and examples.
|
|
*
|
|
* @param mixed $subscriptionId
|
|
* @param \Sabre\DAV\PropPatch $propPatch
|
|
* @return void
|
|
*/
|
|
function updateSubscription($subscriptionId, DAV\PropPatch $propPatch) {
|
|
$supportedProperties = array_keys($this->subscriptionPropertyMap);
|
|
$supportedProperties[] = '{http://calendarserver.org/ns/}source';
|
|
|
|
$propPatch->handle($supportedProperties, function($mutations) use ($subscriptionId) {
|
|
|
|
$newValues = [];
|
|
|
|
foreach($mutations as $propertyName=>$propertyValue) {
|
|
if ($propertyName === '{http://calendarserver.org/ns/}source') {
|
|
$newValues['source'] = $propertyValue->getHref();
|
|
} else {
|
|
$fieldName = $this->subscriptionPropertyMap[$propertyName];
|
|
$newValues[$fieldName] = $propertyValue;
|
|
}
|
|
}
|
|
|
|
$query = $this->db->getQueryBuilder();
|
|
$query->update('calendarsubscriptions')
|
|
->set('lastmodified', $query->createNamedParameter(time()));
|
|
foreach($newValues as $fieldName=>$value) {
|
|
$query->set($fieldName, $query->createNamedParameter($value));
|
|
}
|
|
$query->where($query->expr()->eq('id', $query->createNamedParameter($subscriptionId)))
|
|
->execute();
|
|
|
|
return true;
|
|
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Deletes a subscription.
|
|
*
|
|
* @param mixed $subscriptionId
|
|
* @return void
|
|
*/
|
|
function deleteSubscription($subscriptionId) {
|
|
$query = $this->db->getQueryBuilder();
|
|
$query->delete('calendarsubscriptions')
|
|
->where($query->expr()->eq('id', $query->createNamedParameter($subscriptionId)))
|
|
->execute();
|
|
}
|
|
|
|
/**
|
|
* Returns a single scheduling object for the inbox collection.
|
|
*
|
|
* The returned array should contain the following elements:
|
|
* * uri - A unique basename for the object. This will be used to
|
|
* construct a full uri.
|
|
* * calendardata - The iCalendar object
|
|
* * lastmodified - The last modification date. Can be an int for a unix
|
|
* timestamp, or a PHP DateTime object.
|
|
* * etag - A unique token that must change if the object changed.
|
|
* * size - The size of the object, in bytes.
|
|
*
|
|
* @param string $principalUri
|
|
* @param string $objectUri
|
|
* @return array
|
|
*/
|
|
function getSchedulingObject($principalUri, $objectUri) {
|
|
$query = $this->db->getQueryBuilder();
|
|
$stmt = $query->select(['uri', 'calendardata', 'lastmodified', 'etag', 'size'])
|
|
->from('schedulingobjects')
|
|
->where($query->expr()->eq('principaluri', $query->createNamedParameter($principalUri)))
|
|
->andWhere($query->expr()->eq('uri', $query->createNamedParameter($objectUri)))
|
|
->execute();
|
|
|
|
$row = $stmt->fetch(\PDO::FETCH_ASSOC);
|
|
|
|
if(!$row) {
|
|
return null;
|
|
}
|
|
|
|
return [
|
|
'uri' => $row['uri'],
|
|
'calendardata' => $row['calendardata'],
|
|
'lastmodified' => $row['lastmodified'],
|
|
'etag' => '"' . $row['etag'] . '"',
|
|
'size' => (int)$row['size'],
|
|
];
|
|
}
|
|
|
|
/**
|
|
* Returns all scheduling objects for the inbox collection.
|
|
*
|
|
* These objects should be returned as an array. Every item in the array
|
|
* should follow the same structure as returned from getSchedulingObject.
|
|
*
|
|
* The main difference is that 'calendardata' is optional.
|
|
*
|
|
* @param string $principalUri
|
|
* @return array
|
|
*/
|
|
function getSchedulingObjects($principalUri) {
|
|
$query = $this->db->getQueryBuilder();
|
|
$stmt = $query->select(['uri', 'calendardata', 'lastmodified', 'etag', 'size'])
|
|
->from('schedulingobjects')
|
|
->where($query->expr()->eq('principaluri', $query->createNamedParameter($principalUri)))
|
|
->execute();
|
|
|
|
$result = [];
|
|
foreach($stmt->fetchAll(\PDO::FETCH_ASSOC) as $row) {
|
|
$result[] = [
|
|
'calendardata' => $row['calendardata'],
|
|
'uri' => $row['uri'],
|
|
'lastmodified' => $row['lastmodified'],
|
|
'etag' => '"' . $row['etag'] . '"',
|
|
'size' => (int)$row['size'],
|
|
];
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Deletes a scheduling object from the inbox collection.
|
|
*
|
|
* @param string $principalUri
|
|
* @param string $objectUri
|
|
* @return void
|
|
*/
|
|
function deleteSchedulingObject($principalUri, $objectUri) {
|
|
$query = $this->db->getQueryBuilder();
|
|
$query->delete('schedulingobjects')
|
|
->where($query->expr()->eq('principaluri', $query->createNamedParameter($principalUri)))
|
|
->andWhere($query->expr()->eq('uri', $query->createNamedParameter($objectUri)))
|
|
->execute();
|
|
}
|
|
|
|
/**
|
|
* Creates a new scheduling object. This should land in a users' inbox.
|
|
*
|
|
* @param string $principalUri
|
|
* @param string $objectUri
|
|
* @param string $objectData
|
|
* @return void
|
|
*/
|
|
function createSchedulingObject($principalUri, $objectUri, $objectData) {
|
|
$query = $this->db->getQueryBuilder();
|
|
$query->insert('schedulingobjects')
|
|
->values([
|
|
'principaluri' => $query->createNamedParameter($principalUri),
|
|
'calendardata' => $query->createNamedParameter($objectData),
|
|
'uri' => $query->createNamedParameter($objectUri),
|
|
'lastmodified' => $query->createNamedParameter(time()),
|
|
'etag' => $query->createNamedParameter(md5($objectData)),
|
|
'size' => $query->createNamedParameter(strlen($objectData))
|
|
])
|
|
->execute();
|
|
}
|
|
|
|
/**
|
|
* Adds a change record to the calendarchanges table.
|
|
*
|
|
* @param mixed $calendarId
|
|
* @param string $objectUri
|
|
* @param int $operation 1 = add, 2 = modify, 3 = delete.
|
|
* @return void
|
|
*/
|
|
protected function addChange($calendarId, $objectUri, $operation) {
|
|
|
|
$stmt = $this->db->prepare('INSERT INTO `*PREFIX*calendarchanges` (`uri`, `synctoken`, `calendarid`, `operation`) SELECT ?, `synctoken`, ?, ? FROM `*PREFIX*calendars` WHERE `id` = ?');
|
|
$stmt->execute([
|
|
$objectUri,
|
|
$calendarId,
|
|
$operation,
|
|
$calendarId
|
|
]);
|
|
$stmt = $this->db->prepare('UPDATE `*PREFIX*calendars` SET `synctoken` = `synctoken` + 1 WHERE `id` = ?');
|
|
$stmt->execute([
|
|
$calendarId
|
|
]);
|
|
|
|
}
|
|
|
|
/**
|
|
* Parses some information from calendar objects, used for optimized
|
|
* calendar-queries.
|
|
*
|
|
* Returns an array with the following keys:
|
|
* * etag - An md5 checksum of the object without the quotes.
|
|
* * size - Size of the object in bytes
|
|
* * componentType - VEVENT, VTODO or VJOURNAL
|
|
* * firstOccurence
|
|
* * lastOccurence
|
|
* * uid - value of the UID property
|
|
*
|
|
* @param string $calendarData
|
|
* @return array
|
|
*/
|
|
protected function getDenormalizedData($calendarData) {
|
|
|
|
$vObject = Reader::read($calendarData);
|
|
$componentType = null;
|
|
$component = null;
|
|
$firstOccurence = null;
|
|
$lastOccurence = null;
|
|
$uid = null;
|
|
foreach($vObject->getComponents() as $component) {
|
|
if ($component->name!=='VTIMEZONE') {
|
|
$componentType = $component->name;
|
|
$uid = (string)$component->UID;
|
|
break;
|
|
}
|
|
}
|
|
if (!$componentType) {
|
|
throw new \Sabre\DAV\Exception\BadRequest('Calendar objects must have a VJOURNAL, VEVENT or VTODO component');
|
|
}
|
|
if ($componentType === 'VEVENT') {
|
|
$firstOccurence = $component->DTSTART->getDateTime()->getTimeStamp();
|
|
// Finding the last occurence is a bit harder
|
|
if (!isset($component->RRULE)) {
|
|
if (isset($component->DTEND)) {
|
|
$lastOccurence = $component->DTEND->getDateTime()->getTimeStamp();
|
|
} elseif (isset($component->DURATION)) {
|
|
$endDate = clone $component->DTSTART->getDateTime();
|
|
$endDate->add(DateTimeParser::parse($component->DURATION->getValue()));
|
|
$lastOccurence = $endDate->getTimeStamp();
|
|
} elseif (!$component->DTSTART->hasTime()) {
|
|
$endDate = clone $component->DTSTART->getDateTime();
|
|
$endDate->modify('+1 day');
|
|
$lastOccurence = $endDate->getTimeStamp();
|
|
} else {
|
|
$lastOccurence = $firstOccurence;
|
|
}
|
|
} else {
|
|
$it = new RecurrenceIterator($vObject, (string)$component->UID);
|
|
$maxDate = new \DateTime(self::MAX_DATE);
|
|
if ($it->isInfinite()) {
|
|
$lastOccurence = $maxDate->getTimeStamp();
|
|
} else {
|
|
$end = $it->getDtEnd();
|
|
while($it->valid() && $end < $maxDate) {
|
|
$end = $it->getDtEnd();
|
|
$it->next();
|
|
|
|
}
|
|
$lastOccurence = $end->getTimeStamp();
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
return [
|
|
'etag' => md5($calendarData),
|
|
'size' => strlen($calendarData),
|
|
'componentType' => $componentType,
|
|
'firstOccurence' => $firstOccurence,
|
|
'lastOccurence' => $lastOccurence,
|
|
'uid' => $uid,
|
|
];
|
|
|
|
}
|
|
|
|
private function readBlob($cardData) {
|
|
if (is_resource($cardData)) {
|
|
return stream_get_contents($cardData);
|
|
}
|
|
|
|
return $cardData;
|
|
}
|
|
|
|
public function updateShares($shareable, $add, $remove) {
|
|
$this->sharingBackend->updateShares($shareable, $add, $remove);
|
|
}
|
|
|
|
public function getShares($resourceId) {
|
|
return $this->sharingBackend->getShares($resourceId);
|
|
}
|
|
|
|
public function applyShareAcl($addressBookId, $acl) {
|
|
return $this->sharingBackend->applyShareAcl($addressBookId, $acl);
|
|
}
|
|
|
|
}
|