Fix nextcloud#31303: Make reminder notification behaviour selectable.

Signed-off-by: Daniel Teichmann <daniel.teichmann@das-netzwerkteam.de>

apps/dav/lib/CalDAV/Reminder/ReminderService.php

@@ -33,6 +33,7 @@
 use DateTimeImmutable;
 use OCA\DAV\CalDAV\CalDavBackend;
 use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\IConfig;
 use OCP\IGroup;
 use OCP\IGroupManager;
 use OCP\IUser;
@@ -66,6 +67,9 @@ class ReminderService {
 	/** @var ITimeFactory */
 	private $timeFactory;
 
+	/** @var IConfig */
+	private $config;
+
 	public const REMINDER_TYPE_EMAIL = 'EMAIL';
 	public const REMINDER_TYPE_DISPLAY = 'DISPLAY';
 	public const REMINDER_TYPE_AUDIO = 'AUDIO';
@@ -90,19 +94,22 @@ class ReminderService {
 	 * @param IGroupManager $groupManager
 	 * @param CalDavBackend $caldavBackend
 	 * @param ITimeFactory $timeFactory
+	 * @param IConfig $config
 	 */
 	public function __construct(Backend $backend,
 								NotificationProviderManager $notificationProviderManager,
 								IUserManager $userManager,
 								IGroupManager $groupManager,
 								CalDavBackend $caldavBackend,
-								ITimeFactory $timeFactory) {
+								ITimeFactory $timeFactory,
+								IConfig $config) {
 		$this->backend = $backend;
 		$this->notificationProviderManager = $notificationProviderManager;
 		$this->userManager = $userManager;
 		$this->groupManager = $groupManager;
 		$this->caldavBackend = $caldavBackend;
 		$this->timeFactory = $timeFactory;
+		$this->config = $config;
 	}
 
 	/**
@@ -145,7 +152,12 @@ public function processReminders():void {
 				continue;
 			}
 
-			$users = $this->getAllUsersWithWriteAccessToCalendar($reminder['calendar_id']);
+			if ($this->config->getAppValue('dav', 'sendEventRemindersToSharedGroupMembers', 'yes') === 'no') {
+				$users = $this->getAllUsersWithWriteAccessToCalendar($reminder['calendar_id']);
+			} else {
+				$users = [];
+			}
+
 			$user = $this->getUserFromPrincipalURI($reminder['principaluri']);
 			if ($user) {
 				$users[] = $user;

apps/dav/lib/Settings/CalDAVSettings.php

@@ -43,6 +43,7 @@ class CalDAVSettings implements IDelegatedSettings {
 		'sendInvitations' => 'yes',
 		'generateBirthdayCalendar' => 'yes',
 		'sendEventReminders' => 'yes',
+		'sendEventRemindersToSharedGroupMembers' => 'yes',
 		'sendEventRemindersPush' => 'no',
 	];
 

apps/dav/src/settings.js

@@ -16,6 +16,10 @@ const CalDavSettingsView = new View({
 				'generateBirthdayCalendar'
 			),
 			sendEventReminders: loadState('dav', 'sendEventReminders'),
+			sendEventRemindersToSharedGroupMembers: loadState(
+				'dav',
+				'sendEventRemindersToSharedGroupMembers'
+			),
 			sendEventRemindersPush: loadState('dav', 'sendEventRemindersPush'),
 		}
 	},

apps/dav/src/views/CalDavSettings.vue

@@ -57,7 +57,21 @@
 				{{ $t('dav', 'Notifications are sent via background jobs, so these must occur often enough.') }}
 			</em>
 		</p>
-		<p>
+		<p class="indented">
+			<input id="caldavSendEventRemindersToSharedGroupMembers"
+				v-model="sendEventRemindersToSharedGroupMembers"
+				type="checkbox"
+				class="checkbox"
+				:disabled="!sendEventReminders">
+			<label for="caldavSendEventRemindersToSharedGroupMembers">
+				{{ $t('dav', 'Send reminder notifications to calendar sharees as well') }}
+			</label>
+			<br>
+			<em>
+				{{ $t('dav', 'Reminders are always sent to organizers and attendees.' ) }}
+			</em>
+		</p>
+		<p class="indented">
 			<input id="caldavSendEventRemindersPush"
 				v-model="sendEventRemindersPush"
 				type="checkbox"
@@ -70,6 +84,12 @@
 	</div>
 </template>
 
+<style lang="scss" scoped>
+	.indented {
+		padding-left: 28px;
+	}
+</style>
+
 <script>
 import axios from '@nextcloud/axios'
 import { generateUrl } from '@nextcloud/router'
@@ -115,6 +135,13 @@ export default {
 		sendEventReminders(value) {
 			OCP.AppConfig.setValue('dav', 'sendEventReminders', value ? 'yes' : 'no')
 		},
+		sendEventRemindersToSharedGroupMembers(value) {
+			OCP.AppConfig.setValue(
+				'dav',
+				'sendEventRemindersToSharedGroupMembers',
+				value ? 'yes' : 'no'
+			)
+		},
 		sendEventRemindersPush(value) {
 			OCP.AppConfig.setValue('dav', 'sendEventRemindersPush', value ? 'yes' : 'no')
 		},

apps/dav/tests/unit/CalDAV/Reminder/ReminderServiceTest.php

@@ -34,6 +34,7 @@
 use OCA\DAV\CalDAV\Reminder\NotificationProviderManager;
 use OCA\DAV\CalDAV\Reminder\ReminderService;
 use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\IConfig;
 use OCP\IGroupManager;
 use OCP\IUser;
 use OCP\IUserManager;
@@ -63,6 +64,9 @@ class ReminderServiceTest extends TestCase {
 	/** @var ITimeFactory|\PHPUnit\Framework\MockObject\MockObject  */
 	private $timeFactory;
 
+	/** @var IConfig|\PHPUnit\Framework\MockObject\MockObject */
+	private $config;
+
 	/** @var ReminderService */
 	private $reminderService;
 
@@ -194,6 +198,7 @@ protected function setUp(): void {
 		$this->groupManager = $this->createMock(IGroupManager::class);
 		$this->caldavBackend = $this->createMock(CalDavBackend::class);
 		$this->timeFactory = $this->createMock(ITimeFactory::class);
+		$this->config = $this->createMock(IConfig::class);
 
 		$this->caldavBackend->method('getShares')->willReturn([]);
 
@@ -202,7 +207,8 @@ protected function setUp(): void {
 			$this->userManager,
 			$this->groupManager,
 			$this->caldavBackend,
-			$this->timeFactory);
+			$this->timeFactory,
+			$this->config);
 	}
 
 	public function testOnCalendarObjectDelete():void {