1 files changed, 118 insertions, 0 deletions
diff --git a/apps/dav/lib/CalDAV/EmbeddedCalDavServer.php b/apps/dav/lib/CalDAV/EmbeddedCalDavServer.php
new file mode 100644
index 00000000000..21d8c06fa99
--- /dev/null
+++ b/apps/dav/lib/CalDAV/EmbeddedCalDavServer.php
@@ -0,0 +1,118 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\DAV\CalDAV;
+
+use OCA\DAV\AppInfo\PluginManager;
+use OCA\DAV\CalDAV\Auth\CustomPrincipalPlugin;
+use OCA\DAV\CalDAV\Auth\PublicPrincipalPlugin;
+use OCA\DAV\CalDAV\Publishing\PublishPlugin;
+use OCA\DAV\Connector\Sabre\AnonymousOptionsPlugin;
+use OCA\DAV\Connector\Sabre\BlockLegacyClientPlugin;
+use OCA\DAV\Connector\Sabre\CachingTree;
+use OCA\DAV\Connector\Sabre\DavAclPlugin;
+use OCA\DAV\Connector\Sabre\ExceptionLoggerPlugin;
+use OCA\DAV\Connector\Sabre\LockPlugin;
+use OCA\DAV\Connector\Sabre\MaintenancePlugin;
+use OCA\DAV\Events\SabrePluginAuthInitEvent;
+use OCA\DAV\RootCollection;
+use OCA\Theming\ThemingDefaults;
+use OCP\App\IAppManager;
+use OCP\EventDispatcher\IEventDispatcher;
+use OCP\IAppConfig;
+use OCP\IConfig;
+use OCP\IURLGenerator;
+use OCP\L10N\IFactory as IL10NFactory;
+use OCP\Server;
+use Psr\Log\LoggerInterface;
+
+class EmbeddedCalDavServer {
+	private readonly \OCA\DAV\Connector\Sabre\Server $server;
+
+	public function __construct(bool $public = true) {
+		$baseUri = \OC::$WEBROOT . '/remote.php/dav/';
+		$logger = Server::get(LoggerInterface::class);
+		$dispatcher = Server::get(IEventDispatcher::class);
+		$appConfig = Server::get(IAppConfig::class);
+		$l10nFactory = Server::get(IL10NFactory::class);
+		$l10n = $l10nFactory->get('dav');
+
+		$root = new RootCollection();
+		$this->server = new \OCA\DAV\Connector\Sabre\Server(new CachingTree($root));
+
+		// Add maintenance plugin
+		$this->server->addPlugin(new MaintenancePlugin(Server::get(IConfig::class), $l10n));
+
+		// Set URL explicitly due to reverse-proxy situations
+		$this->server->httpRequest->setUrl($baseUri);
+		$this->server->setBaseUri($baseUri);
+
+		$this->server->addPlugin(new BlockLegacyClientPlugin(
+			Server::get(IConfig::class),
+			Server::get(ThemingDefaults::class),
+		));
+		$this->server->addPlugin(new AnonymousOptionsPlugin());
+
+		// allow custom principal uri option
+		if ($public) {
+			$this->server->addPlugin(new PublicPrincipalPlugin());
+		} else {
+			$this->server->addPlugin(new CustomPrincipalPlugin());
+		}
+
+		// allow setup of additional auth backends
+		$event = new SabrePluginAuthInitEvent($this->server);
+		$dispatcher->dispatchTyped($event);
+
+		$this->server->addPlugin(new ExceptionLoggerPlugin('webdav', $logger));
+		$this->server->addPlugin(new LockPlugin());
+		$this->server->addPlugin(new \Sabre\DAV\Sync\Plugin());
+
+		// acl
+		$acl = new DavAclPlugin();
+		$acl->principalCollectionSet = [
+			'principals/users', 'principals/groups'
+		];
+		$this->server->addPlugin($acl);
+
+		// calendar plugins
+		$this->server->addPlugin(new \OCA\DAV\CalDAV\Plugin());
+		$this->server->addPlugin(new \Sabre\CalDAV\ICSExportPlugin());
+		$this->server->addPlugin(new \OCA\DAV\CalDAV\Schedule\Plugin(Server::get(IConfig::class), Server::get(LoggerInterface::class), Server::get(DefaultCalendarValidator::class)));
+		$this->server->addPlugin(new \Sabre\CalDAV\Subscriptions\Plugin());
+		$this->server->addPlugin(new \Sabre\CalDAV\Notifications\Plugin());
+		//$this->server->addPlugin(new \OCA\DAV\DAV\Sharing\Plugin($authBackend, \OC::$server->getRequest()));
+		$this->server->addPlugin(new PublishPlugin(
+			Server::get(IConfig::class),
+			Server::get(IURLGenerator::class)
+		));
+		if ($appConfig->getValueString('dav', 'sendInvitations', 'yes') === 'yes') {
+			$this->server->addPlugin(Server::get(\OCA\DAV\CalDAV\Schedule\IMipPlugin::class));
+		}
+
+		// wait with registering these until auth is handled and the filesystem is setup
+		$this->server->on('beforeMethod:*', function () use ($root): void {
+			// register plugins from apps
+			$pluginManager = new PluginManager(
+				\OC::$server,
+				Server::get(IAppManager::class)
+			);
+			foreach ($pluginManager->getAppPlugins() as $appPlugin) {
+				$this->server->addPlugin($appPlugin);
+			}
+			foreach ($pluginManager->getAppCollections() as $appCollection) {
+				$root->addChild($appCollection);
+			}
+		});
+	}
+
+	public function getServer(): \OCA\DAV\Connector\Sabre\Server {
+		return $this->server;
+	}
+}