1 files changed, 81 insertions, 0 deletions
diff --git a/apps/files_versions/lib/Sabre/VersionRoot.php b/apps/files_versions/lib/Sabre/VersionRoot.php
new file mode 100644
index 00000000000..7f7014fbee3
--- /dev/null
+++ b/apps/files_versions/lib/Sabre/VersionRoot.php
@@ -0,0 +1,81 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\Files_Versions\Sabre;
+
+use OCA\Files_Versions\Versions\IVersionManager;
+use OCP\Files\File;
+use OCP\Files\IRootFolder;
+use OCP\IUser;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\ICollection;
+
+class VersionRoot implements ICollection {
+
+	public function __construct(
+		private IUser $user,
+		private IRootFolder $rootFolder,
+		private IVersionManager $versionManager,
+	) {
+	}
+
+	public function delete() {
+		throw new Forbidden();
+	}
+
+	public function getName(): string {
+		return 'versions';
+	}
+
+	public function setName($name) {
+		throw new Forbidden();
+	}
+
+	public function createFile($name, $data = null) {
+		throw new Forbidden();
+	}
+
+	public function createDirectory($name) {
+		throw new Forbidden();
+	}
+
+	public function getChild($name) {
+		$userFolder = $this->rootFolder->getUserFolder($this->user->getUID());
+
+		$fileId = (int)$name;
+		$node = $userFolder->getFirstNodeById($fileId);
+
+		if (!$node) {
+			throw new NotFound();
+		}
+
+		if (!$node instanceof File) {
+			throw new NotFound();
+		}
+
+		return new VersionCollection($node, $this->user, $this->versionManager);
+	}
+
+	public function getChildren(): array {
+		return [];
+	}
+
+	public function childExists($name): bool {
+		try {
+			$this->getChild($name);
+			return true;
+		} catch (NotFound $e) {
+			return false;
+		}
+	}
+
+	public function getLastModified(): int {
+		return 0;
+	}
+}