1 files changed, 568 insertions, 0 deletions
diff --git a/lib/private/Files/Node/LazyFolder.php b/lib/private/Files/Node/LazyFolder.php
new file mode 100644
index 00000000000..37b1efa0fad
--- /dev/null
+++ b/lib/private/Files/Node/LazyFolder.php
@@ -0,0 +1,568 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OC\Files\Node;
+
+use OC\Files\Filesystem;
+use OC\Files\Utils\PathHelper;
+use OCP\Constants;
+use OCP\Files\Folder;
+use OCP\Files\IRootFolder;
+use OCP\Files\Mount\IMountPoint;
+use OCP\Files\NotPermittedException;
+
+/**
+ * Class LazyFolder
+ *
+ * This is a lazy wrapper around a folder. So only
+ * once it is needed this will get initialized.
+ *
+ * @package OC\Files\Node
+ */
+class LazyFolder implements Folder {
+	/** @var \Closure(): Folder */
+	private \Closure $folderClosure;
+	protected ?Folder $folder = null;
+	protected IRootFolder $rootFolder;
+	protected array $data;
+
+	/**
+	 * @param IRootFolder $rootFolder
+	 * @param \Closure(): Folder $folderClosure
+	 * @param array $data
+	 */
+	public function __construct(IRootFolder $rootFolder, \Closure $folderClosure, array $data = []) {
+		$this->rootFolder = $rootFolder;
+		$this->folderClosure = $folderClosure;
+		$this->data = $data;
+	}
+
+	protected function getRootFolder(): IRootFolder {
+		return $this->rootFolder;
+	}
+
+	protected function getRealFolder(): Folder {
+		if ($this->folder === null) {
+			$this->folder = call_user_func($this->folderClosure);
+		}
+		return $this->folder;
+	}
+
+	/**
+	 * Magic method to first get the real rootFolder and then
+	 * call $method with $args on it
+	 *
+	 * @param $method
+	 * @param $args
+	 * @return mixed
+	 */
+	public function __call($method, $args) {
+		return call_user_func_array([$this->getRealFolder(), $method], $args);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getUser() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function listen($scope, $method, callable $callback) {
+		$this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function removeListener($scope = null, $method = null, ?callable $callback = null) {
+		$this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function emit($scope, $method, $arguments = []) {
+		$this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function mount($storage, $mountPoint, $arguments = []) {
+		$this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getMount(string $mountPoint): IMountPoint {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @return IMountPoint[]
+	 */
+	public function getMountsIn(string $mountPoint): array {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getMountByStorageId($storageId) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getMountByNumericStorageId($numericId) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function unMount($mount) {
+		$this->__call(__FUNCTION__, func_get_args());
+	}
+
+	public function get($path) {
+		return $this->getRootFolder()->get($this->getFullPath($path));
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function rename($targetPath) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function delete() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function copy($targetPath) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function touch($mtime = null) {
+		$this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getStorage() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getPath() {
+		if (isset($this->data['path'])) {
+			return $this->data['path'];
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getInternalPath() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getId() {
+		if (isset($this->data['fileid'])) {
+			return $this->data['fileid'];
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function stat() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getMTime() {
+		if (isset($this->data['mtime'])) {
+			return $this->data['mtime'];
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getSize($includeMounts = true): int|float {
+		if (isset($this->data['size'])) {
+			return $this->data['size'];
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getEtag() {
+		if (isset($this->data['etag'])) {
+			return $this->data['etag'];
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getPermissions() {
+		if (isset($this->data['permissions'])) {
+			return $this->data['permissions'];
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function isReadable() {
+		if (isset($this->data['permissions'])) {
+			return ($this->data['permissions'] & Constants::PERMISSION_READ) == Constants::PERMISSION_READ;
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function isUpdateable() {
+		if (isset($this->data['permissions'])) {
+			return ($this->data['permissions'] & Constants::PERMISSION_UPDATE) == Constants::PERMISSION_UPDATE;
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function isDeletable() {
+		if (isset($this->data['permissions'])) {
+			return ($this->data['permissions'] & Constants::PERMISSION_DELETE) == Constants::PERMISSION_DELETE;
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function isShareable() {
+		if (isset($this->data['permissions'])) {
+			return ($this->data['permissions'] & Constants::PERMISSION_SHARE) == Constants::PERMISSION_SHARE;
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getParent() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getName() {
+		if (isset($this->data['path'])) {
+			return basename($this->data['path']);
+		}
+		if (isset($this->data['name'])) {
+			return $this->data['name'];
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getUserFolder($userId) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getMimetype() {
+		if (isset($this->data['mimetype'])) {
+			return $this->data['mimetype'];
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getMimePart() {
+		if (isset($this->data['mimetype'])) {
+			[$part,] = explode('/', $this->data['mimetype']);
+			return $part;
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function isEncrypted() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getType() {
+		if (isset($this->data['type'])) {
+			return $this->data['type'];
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function isShared() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function isMounted() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getMountPoint() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getOwner() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getChecksum() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	public function getExtension(): string {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getFullPath($path) {
+		if (isset($this->data['path'])) {
+			$path = PathHelper::normalizePath($path);
+			if (!Filesystem::isValidPath($path)) {
+				throw new NotPermittedException('Invalid path "' . $path . '"');
+			}
+			return $this->data['path'] . $path;
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function isSubNode($node) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getDirectoryListing() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	public function nodeExists($path) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function newFolder($path) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function newFile($path, $content = null) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function search($query) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function searchByMime($mimetype) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function searchByTag($tag, $userId) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	public function searchBySystemTag(string $tagName, string $userId, int $limit = 0, int $offset = 0) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getById($id) {
+		return $this->getRootFolder()->getByIdInPath((int)$id, $this->getPath());
+	}
+
+	public function getFirstNodeById(int $id): ?\OCP\Files\Node {
+		return $this->getRootFolder()->getFirstNodeByIdInPath($id, $this->getPath());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getFreeSpace() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function isCreatable() {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getNonExistingName($name) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function move($targetPath) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function lock($type) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function changeLock($targetType) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function unlock($type) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getRecent($limit, $offset = 0) {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getCreationTime(): int {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getUploadTime(): int {
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	public function getRelativePath($path) {
+		return PathHelper::getRelativePath($this->getPath(), $path);
+	}
+
+	public function getParentId(): int {
+		if (isset($this->data['parent'])) {
+			return $this->data['parent'];
+		}
+		return $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	/**
+	 * @inheritDoc
+	 * @return array<string, int|string|bool|float|string[]|int[]>
+	 */
+	public function getMetadata(): array {
+		return $this->data['metadata'] ?? $this->__call(__FUNCTION__, func_get_args());
+	}
+
+	public function verifyPath($fileName, $readonly = false): void {
+		$this->__call(__FUNCTION__, func_get_args());
+	}
+}