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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
<?php
/**
* @author Thomas Citharel <tcit@tcit.fr>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Reminder;
use OC\User\NoUserException;
use OCP\IGroup;
use OCP\IGroupManager;
use OCP\IUserManager;
use OCP\IUserSession;
use Sabre\VObject;
use Sabre\VObject\Component\VAlarm;
use Sabre\VObject\Reader;
class ReminderService {
/** @var Backend */
private $backend;
/** @var NotificationProviderManager */
private $notificationProviderManager;
/** @var IUserManager */
private $userManager;
/** @var IGroupManager */
private $groupManager;
/** @var IUserSession */
private $userSession;
public const REMINDER_TYPE_EMAIL = 'EMAIL';
public const REMINDER_TYPE_DISPLAY = 'DISPLAY';
public const REMINDER_TYPE_AUDIO = 'AUDIO';
public const REMINDER_TYPES = [
self::REMINDER_TYPE_EMAIL,
self::REMINDER_TYPE_DISPLAY,
self::REMINDER_TYPE_AUDIO
];
public function __construct(Backend $backend,
NotificationProviderManager $notificationProviderManager,
IUserManager $userManager,
IGroupManager $groupManager,
IUserSession $userSession) {
$this->backend = $backend;
$this->notificationProviderManager = $notificationProviderManager;
$this->userManager = $userManager;
$this->groupManager = $groupManager;
$this->userSession = $userSession;
}
/**
* Process reminders to activate
*
* @throws NoUserException
* @throws NotificationProvider\ProviderNotAvailableException
* @throws NotificationTypeDoesNotExistException
*/
public function processReminders():void {
$reminders = $this->backend->getRemindersToProcess();
foreach ($reminders as $reminder) {
$calendarData = Reader::read($reminder['calendardata']);
$user = $this->userManager->get($reminder['uid']);
if ($user === null) {
throw new NoUserException('User not found for calendar');
}
$notificationProvider = $this->notificationProviderManager->getProvider($reminder['type']);
$notificationProvider->send($calendarData, $reminder['displayname'], $user);
$this->backend->removeReminder($reminder['id']);
}
}
/**
* Saves reminders when a calendar object with some alarms was created/updated/deleted
*
* @param string $action
* @param array $calendarData
* @param array $shares
* @param array $objectData
* @return void
* @throws VObject\InvalidDataException
* @throws NoUserException
*/
public function onTouchCalendarObject(string $action, array $calendarData, array $shares, array $objectData):void {
if (!isset($calendarData['principaluri'])) {
return;
}
// Always remove existing reminders for this event
$this->backend->cleanRemindersForEvent($objectData['calendarid'], $objectData['uri']);
/**
* If we are deleting the event, no need to go further
*/
if ($action === '\OCA\DAV\CalDAV\CalDavBackend::deleteCalendarObject') {
return;
}
$user = $this->userSession->getUser();
if ($user === null) {
throw new NoUserException('No user in session');
}
$users = $this->getUsersForShares($shares);
$users[] = $user->getUID();
$vobject = VObject\Reader::read($objectData['calendardata']);
foreach ($vobject->VEVENT->VALARM as $alarm) {
if ($alarm instanceof VAlarm) {
$type = strtoupper($alarm->ACTION->getValue());
if (in_array($type, self::REMINDER_TYPES, true)) {
$time = $alarm->getEffectiveTriggerTime();
foreach ($users as $uid) {
$this->backend->insertReminder(
$uid,
$objectData['calendarid'],
$objectData['uri'],
$type,
$time->getTimestamp(),
$vobject->VEVENT->DTSTART->getDateTime()->getTimestamp());
}
}
}
}
}
/**
* Get all users that have access to a given calendar
*
* @param array $shares
* @return string[]
*/
private function getUsersForShares(array $shares):array {
$users = $groups = [];
foreach ($shares as $share) {
$principal = explode('/', $share['{http://owncloud.org/ns}principal']);
if ($principal[1] === 'users') {
$users[] = $principal[2];
} else if ($principal[1] === 'groups') {
$groups[] = $principal[2];
}
}
if (!empty($groups)) {
foreach ($groups as $gid) {
$group = $this->groupManager->get($gid);
if ($group instanceof IGroup) {
foreach ($group->getUsers() as $user) {
$users[] = $user->getUID();
}
}
}
}
return array_unique($users);
}
}
|
