diff --git a/apps/files_reminders/appinfo/info.xml b/apps/files_reminders/appinfo/info.xml
index 86cee2e7f5b43..83e1e813cceff 100644
--- a/apps/files_reminders/appinfo/info.xml
+++ b/apps/files_reminders/appinfo/info.xml
@@ -13,6 +13,10 @@ Set file reminders.
Christopher Ng
FilesReminders
+
+
+
+
files
https://github.com/nextcloud/server/issues
@@ -29,4 +33,10 @@ Set file reminders.
OCA\FilesReminders\Command\ListCommand
+
+
+
+ OCA\FilesReminders\Dav\PropFindPlugin
+
+
diff --git a/apps/files_reminders/composer/composer/autoload_classmap.php b/apps/files_reminders/composer/composer/autoload_classmap.php
index 7442e9da20170..7dc5063c18248 100644
--- a/apps/files_reminders/composer/composer/autoload_classmap.php
+++ b/apps/files_reminders/composer/composer/autoload_classmap.php
@@ -12,6 +12,7 @@
'OCA\\FilesReminders\\BackgroundJob\\ScheduledNotifications' => $baseDir . '/../lib/BackgroundJob/ScheduledNotifications.php',
'OCA\\FilesReminders\\Command\\ListCommand' => $baseDir . '/../lib/Command/ListCommand.php',
'OCA\\FilesReminders\\Controller\\ApiController' => $baseDir . '/../lib/Controller/ApiController.php',
+ 'OCA\\FilesReminders\\Dav\\PropFindPlugin' => $baseDir . '/../lib/Dav/PropFindPlugin.php',
'OCA\\FilesReminders\\Db\\Reminder' => $baseDir . '/../lib/Db/Reminder.php',
'OCA\\FilesReminders\\Db\\ReminderMapper' => $baseDir . '/../lib/Db/ReminderMapper.php',
'OCA\\FilesReminders\\Exception\\NodeNotFoundException' => $baseDir . '/../lib/Exception/NodeNotFoundException.php',
diff --git a/apps/files_reminders/composer/composer/autoload_static.php b/apps/files_reminders/composer/composer/autoload_static.php
index a533f76931289..7c14a9da02ced 100644
--- a/apps/files_reminders/composer/composer/autoload_static.php
+++ b/apps/files_reminders/composer/composer/autoload_static.php
@@ -27,6 +27,7 @@ class ComposerStaticInitFilesReminders
'OCA\\FilesReminders\\BackgroundJob\\ScheduledNotifications' => __DIR__ . '/..' . '/../lib/BackgroundJob/ScheduledNotifications.php',
'OCA\\FilesReminders\\Command\\ListCommand' => __DIR__ . '/..' . '/../lib/Command/ListCommand.php',
'OCA\\FilesReminders\\Controller\\ApiController' => __DIR__ . '/..' . '/../lib/Controller/ApiController.php',
+ 'OCA\\FilesReminders\\Dav\\PropFindPlugin' => __DIR__ . '/..' . '/../lib/Dav/PropFindPlugin.php',
'OCA\\FilesReminders\\Db\\Reminder' => __DIR__ . '/..' . '/../lib/Db/Reminder.php',
'OCA\\FilesReminders\\Db\\ReminderMapper' => __DIR__ . '/..' . '/../lib/Db/ReminderMapper.php',
'OCA\\FilesReminders\\Exception\\NodeNotFoundException' => __DIR__ . '/..' . '/../lib/Exception/NodeNotFoundException.php',
diff --git a/apps/files_reminders/lib/Dav/PropFindPlugin.php b/apps/files_reminders/lib/Dav/PropFindPlugin.php
new file mode 100644
index 0000000000000..e476c1a3b1330
--- /dev/null
+++ b/apps/files_reminders/lib/Dav/PropFindPlugin.php
@@ -0,0 +1,82 @@
+
+ *
+ * @author Christopher Ng
+ *
+ * @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 .
+ *
+ */
+
+namespace OCA\FilesReminders\Dav;
+
+use DateTimeInterface;
+use OCA\DAV\Connector\Sabre\Node;
+use OCA\FilesReminders\Service\ReminderService;
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\IUser;
+use OCP\IUserSession;
+use Sabre\DAV\INode;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+
+class PropFindPlugin extends ServerPlugin {
+
+ public const REMINDER_DUE_DATE_PROPERTY = '{http://nextcloud.org/ns}reminder-due-date';
+
+ public function __construct(
+ private ReminderService $reminderService,
+ private IUserSession $userSession,
+ ) {
+ }
+
+ public function initialize(Server $server): void {
+ $server->on('propFind', [$this, 'propFind']);
+ }
+
+ public function propFind(PropFind $propFind, INode $node) {
+ if (!in_array(static::REMINDER_DUE_DATE_PROPERTY, $propFind->getRequestedProperties())) {
+ return;
+ }
+
+ if (!($node instanceof Node)) {
+ return;
+ }
+
+ $propFind->handle(
+ static::REMINDER_DUE_DATE_PROPERTY,
+ function () use ($node) {
+ $user = $this->userSession->getUser();
+ if (!($user instanceof IUser)) {
+ return '';
+ }
+
+ $fileId = $node->getId();
+ try {
+ $reminder = $this->reminderService->getDueForUser($user, $fileId);
+ } catch (DoesNotExistException $e) {
+ return '';
+ }
+
+ return $reminder->getDueDate()->format(DateTimeInterface::ATOM); // ISO 8601
+ },
+ );
+ }
+}