1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
<?php
/**
* @copyright 2019, Georg Ehrke <oc.list@georgehrke.com>
*
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\DAV\CalDAV\ICSExportPlugin;
use OCP\IConfig;
use OCP\ILogger;
use Sabre\HTTP\ResponseInterface;
use Sabre\VObject\DateTimeParser;
use Sabre\VObject\InvalidDataException;
use Sabre\VObject\Property\ICalendar\Duration;
/**
* Class ICSExportPlugin
*
* @package OCA\DAV\CalDAV\ICSExportPlugin
*/
class ICSExportPlugin extends \Sabre\CalDAV\ICSExportPlugin {
/** @var IConfig */
private $config;
/** @var ILogger */
private $logger;
/** @var string */
private const DEFAULT_REFRESH_INTERVAL = 'PT4H';
/**
* ICSExportPlugin constructor.
*
* @param IConfig $config
*/
public function __construct(IConfig $config, ILogger $logger) {
$this->config = $config;
$this->logger = $logger;
}
/**
* @inheritDoc
*/
protected function generateResponse($path, $start, $end, $expand, $componentType, $format, $properties, ResponseInterface $response) {
if (!isset($properties['{http://nextcloud.com/ns}refresh-interval'])) {
$value = $this->config->getAppValue('dav', 'defaultRefreshIntervalExportedCalendars', self::DEFAULT_REFRESH_INTERVAL);
$properties['{http://nextcloud.com/ns}refresh-interval'] = $value;
}
return parent::generateResponse($path, $start, $end, $expand, $componentType, $format, $properties, $response);
}
/**
* @inheritDoc
*/
public function mergeObjects(array $properties, array $inputObjects) {
$vcalendar = parent::mergeObjects($properties, $inputObjects);
if (isset($properties['{http://nextcloud.com/ns}refresh-interval'])) {
$refreshIntervalValue = $properties['{http://nextcloud.com/ns}refresh-interval'];
try {
DateTimeParser::parseDuration($refreshIntervalValue);
} catch (InvalidDataException $ex) {
$this->logger->debug('Invalid refresh interval for exported calendar, falling back to default value ...');
$refreshIntervalValue = self::DEFAULT_REFRESH_INTERVAL;
}
// https://tools.ietf.org/html/rfc7986#section-5.7
$refreshInterval = new Duration($vcalendar, 'REFRESH-INTERVAL', $refreshIntervalValue);
$refreshInterval->add('VALUE', 'DURATION');
$vcalendar->add($refreshInterval);
// Legacy property for compatibility
$vcalendar->{'X-PUBLISHED-TTL'} = $refreshIntervalValue;
}
return $vcalendar;
}
}
|
