1 files changed, 169 insertions, 0 deletions
diff --git a/apps/dav/lib/Comments/RootCollection.php b/apps/dav/lib/Comments/RootCollection.php
new file mode 100644
index 00000000000..493d73ec531
--- /dev/null
+++ b/apps/dav/lib/Comments/RootCollection.php
@@ -0,0 +1,169 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OCA\DAV\Comments;
+
+use OCP\Comments\CommentsEntityEvent;
+use OCP\Comments\ICommentsManager;
+use OCP\EventDispatcher\IEventDispatcher;
+use OCP\IUserManager;
+use OCP\IUserSession;
+use Psr\Log\LoggerInterface;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Exception\NotAuthenticated;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\ICollection;
+
+class RootCollection implements ICollection {
+	/** @var EntityTypeCollection[]|null */
+	private ?array $entityTypeCollections = null;
+	protected string $name = 'comments';
+
+	public function __construct(
+		protected ICommentsManager $commentsManager,
+		protected IUserManager $userManager,
+		protected IUserSession $userSession,
+		protected IEventDispatcher $dispatcher,
+		protected LoggerInterface $logger,
+	) {
+	}
+
+	/**
+	 * initializes the collection. At this point of time, we need the logged in
+	 * user. Since it is not the case when the instance is created, we cannot
+	 * have this in the constructor.
+	 *
+	 * @throws NotAuthenticated
+	 */
+	protected function initCollections() {
+		if ($this->entityTypeCollections !== null) {
+			return;
+		}
+		$user = $this->userSession->getUser();
+		if (is_null($user)) {
+			throw new NotAuthenticated();
+		}
+
+		$event = new CommentsEntityEvent();
+		$this->dispatcher->dispatchTyped($event);
+		$this->dispatcher->dispatch(CommentsEntityEvent::EVENT_ENTITY, $event);
+
+		$this->entityTypeCollections = [];
+		foreach ($event->getEntityCollections() as $entity => $entityExistsFunction) {
+			$this->entityTypeCollections[$entity] = new EntityTypeCollection(
+				$entity,
+				$this->commentsManager,
+				$this->userManager,
+				$this->userSession,
+				$this->logger,
+				$entityExistsFunction
+			);
+		}
+	}
+
+	/**
+	 * Creates a new file in the directory
+	 *
+	 * @param string $name Name of the file
+	 * @param resource|string $data Initial payload
+	 * @return null|string
+	 * @throws Forbidden
+	 */
+	public function createFile($name, $data = null) {
+		throw new Forbidden('Cannot create comments by id');
+	}
+
+	/**
+	 * Creates a new subdirectory
+	 *
+	 * @param string $name
+	 * @throws Forbidden
+	 */
+	public function createDirectory($name) {
+		throw new Forbidden('Permission denied to create collections');
+	}
+
+	/**
+	 * Returns a specific child node, referenced by its name
+	 *
+	 * This method must throw Sabre\DAV\Exception\NotFound if the node does not
+	 * exist.
+	 *
+	 * @param string $name
+	 * @return \Sabre\DAV\INode
+	 * @throws NotFound
+	 */
+	public function getChild($name) {
+		$this->initCollections();
+		if (isset($this->entityTypeCollections[$name])) {
+			return $this->entityTypeCollections[$name];
+		}
+		throw new NotFound('Entity type "' . $name . '" not found."');
+	}
+
+	/**
+	 * Returns an array with all the child nodes
+	 *
+	 * @return \Sabre\DAV\INode[]
+	 */
+	public function getChildren() {
+		$this->initCollections();
+		assert(!is_null($this->entityTypeCollections));
+		return $this->entityTypeCollections;
+	}
+
+	/**
+	 * Checks if a child-node with the specified name exists
+	 *
+	 * @param string $name
+	 * @return bool
+	 */
+	public function childExists($name) {
+		$this->initCollections();
+		assert(!is_null($this->entityTypeCollections));
+		return isset($this->entityTypeCollections[$name]);
+	}
+
+	/**
+	 * Deleted the current node
+	 *
+	 * @throws Forbidden
+	 */
+	public function delete() {
+		throw new Forbidden('Permission denied to delete this collection');
+	}
+
+	/**
+	 * Returns the name of the node.
+	 *
+	 * This is used to generate the url.
+	 *
+	 * @return string
+	 */
+	public function getName() {
+		return $this->name;
+	}
+
+	/**
+	 * Renames the node
+	 *
+	 * @param string $name The new name
+	 * @throws Forbidden
+	 */
+	public function setName($name) {
+		throw new Forbidden('Permission denied to rename this collection');
+	}
+
+	/**
+	 * Returns the last modification time, as a unix timestamp
+	 *
+	 * @return ?int
+	 */
+	public function getLastModified() {
+		return null;
+	}
+}