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71 lines
2.2 KiB
PHP
71 lines
2.2 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OCA\DAV\CalDAV\ICSExportPlugin;
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use OCP\IConfig;
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use Psr\Log\LoggerInterface;
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use Sabre\HTTP\ResponseInterface;
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use Sabre\VObject\DateTimeParser;
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use Sabre\VObject\InvalidDataException;
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use Sabre\VObject\Property\ICalendar\Duration;
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/**
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* Class ICSExportPlugin
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*
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* @package OCA\DAV\CalDAV\ICSExportPlugin
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*/
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class ICSExportPlugin extends \Sabre\CalDAV\ICSExportPlugin {
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/** @var string */
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private const DEFAULT_REFRESH_INTERVAL = 'PT4H';
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/**
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* ICSExportPlugin constructor.
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*/
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public function __construct(
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private IConfig $config,
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private LoggerInterface $logger,
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) {
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}
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/**
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* @inheritDoc
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*/
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protected function generateResponse($path, $start, $end, $expand, $componentType, $format, $properties, ResponseInterface $response) {
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if (!isset($properties['{http://nextcloud.com/ns}refresh-interval'])) {
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$value = $this->config->getAppValue('dav', 'defaultRefreshIntervalExportedCalendars', self::DEFAULT_REFRESH_INTERVAL);
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$properties['{http://nextcloud.com/ns}refresh-interval'] = $value;
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}
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return parent::generateResponse($path, $start, $end, $expand, $componentType, $format, $properties, $response);
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}
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/**
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* @inheritDoc
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*/
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public function mergeObjects(array $properties, array $inputObjects) {
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$vcalendar = parent::mergeObjects($properties, $inputObjects);
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if (isset($properties['{http://nextcloud.com/ns}refresh-interval'])) {
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$refreshIntervalValue = $properties['{http://nextcloud.com/ns}refresh-interval'];
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try {
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DateTimeParser::parseDuration($refreshIntervalValue);
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} catch (InvalidDataException $ex) {
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$this->logger->debug('Invalid refresh interval for exported calendar, falling back to default value ...');
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$refreshIntervalValue = self::DEFAULT_REFRESH_INTERVAL;
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}
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// https://tools.ietf.org/html/rfc7986#section-5.7
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$refreshInterval = new Duration($vcalendar, 'REFRESH-INTERVAL', $refreshIntervalValue);
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$refreshInterval->add('VALUE', 'DURATION');
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$vcalendar->add($refreshInterval);
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// Legacy property for compatibility
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$vcalendar->{'X-PUBLISHED-TTL'} = $refreshIntervalValue;
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}
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return $vcalendar;
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}
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}
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