nextcloud / server

apps/dav/lib/Connector/Sabre/File.php

Indentation +677 added lines, -677 removed lines

@@ -76,681 +76,681 @@
 use Sabre\DAV\IFile;
 
 class File extends Node implements IFile {
-	protected $request;
-
-	protected IL10N $l10n;
-
-	/**
-	 * Sets up the node, expects a full path name
-	 *
-	 * @param \OC\Files\View $view
-	 * @param \OCP\Files\FileInfo $info
-	 * @param \OCP\Share\IManager $shareManager
-	 * @param \OC\AppFramework\Http\Request $request
-	 */
-	public function __construct(View $view, FileInfo $info, IManager $shareManager = null, Request $request = null) {
-		parent::__construct($view, $info, $shareManager);
-
-		// Querying IL10N directly results in a dependency loop
-		/** @var IL10NFactory $l10nFactory */
-		$l10nFactory = \OC::$server->get(IL10NFactory::class);
-		$this->l10n = $l10nFactory->get(Application::APP_ID);
-
-		if (isset($request)) {
-			$this->request = $request;
-		} else {
-			$this->request = \OC::$server->getRequest();
-		}
-	}
-
-	/**
-	 * Updates the data
-	 *
-	 * The data argument is a readable stream resource.
-	 *
-	 * After a successful put operation, you may choose to return an ETag. The
-	 * etag must always be surrounded by double-quotes. These quotes must
-	 * appear in the actual string you're returning.
-	 *
-	 * Clients may use the ETag from a PUT request to later on make sure that
-	 * when they update the file, the contents haven't changed in the mean
-	 * time.
-	 *
-	 * If you don't plan to store the file byte-by-byte, and you return a
-	 * different object on a subsequent GET you are strongly recommended to not
-	 * return an ETag, and just return null.
-	 *
-	 * @param resource $data
-	 *
-	 * @throws Forbidden
-	 * @throws UnsupportedMediaType
-	 * @throws BadRequest
-	 * @throws Exception
-	 * @throws EntityTooLarge
-	 * @throws ServiceUnavailable
-	 * @throws FileLocked
-	 * @return string|null
-	 */
-	public function put($data) {
-		try {
-			$exists = $this->fileView->file_exists($this->path);
-			if ($this->info && $exists && !$this->info->isUpdateable()) {
-				throw new Forbidden();
-			}
-		} catch (StorageNotAvailableException $e) {
-			throw new ServiceUnavailable($this->l10n->t('File is not updatable: %1$s', [$e->getMessage()]));
-		}
-
-		// verify path of the target
-		$this->verifyPath();
-
-		// chunked handling
-		if (isset($_SERVER['HTTP_OC_CHUNKED'])) {
-			try {
-				return $this->createFileChunked($data);
-			} catch (\Exception $e) {
-				$this->convertToSabreException($e);
-			}
-		}
-
-		/** @var Storage $partStorage */
-		[$partStorage] = $this->fileView->resolvePath($this->path);
-		$needsPartFile = $partStorage->needsPartFile() && (strlen($this->path) > 1);
-
-		$view = \OC\Files\Filesystem::getView();
-
-		if ($needsPartFile) {
-			// mark file as partial while uploading (ignored by the scanner)
-			$partFilePath = $this->getPartFileBasePath($this->path) . '.ocTransferId' . rand() . '.part';
-
-			if (!$view->isCreatable($partFilePath) && $view->isUpdatable($this->path)) {
-				$needsPartFile = false;
-			}
-		}
-		if (!$needsPartFile) {
-			// upload file directly as the final path
-			$partFilePath = $this->path;
-
-			if ($view && !$this->emitPreHooks($exists)) {
-				throw new Exception($this->l10n->t('Could not write to final file, canceled by hook'));
-			}
-		}
-
-		// the part file and target file might be on a different storage in case of a single file storage (e.g. single file share)
-		/** @var \OC\Files\Storage\Storage $partStorage */
-		[$partStorage, $internalPartPath] = $this->fileView->resolvePath($partFilePath);
-		/** @var \OC\Files\Storage\Storage $storage */
-		[$storage, $internalPath] = $this->fileView->resolvePath($this->path);
-		try {
-			if (!$needsPartFile) {
-				try {
-					$this->changeLock(ILockingProvider::LOCK_EXCLUSIVE);
-				} catch (LockedException $e) {
-					// during very large uploads, the shared lock we got at the start might have been expired
-					// meaning that the above lock can fail not just only because somebody else got a shared lock
-					// or because there is no existing shared lock to make exclusive
-					//
-					// Thus we try to get a new exclusive lock, if the original lock failed because of a different shared
-					// lock this will still fail, if our original shared lock expired the new lock will be successful and
-					// the entire operation will be safe
-
-					try {
-						$this->acquireLock(ILockingProvider::LOCK_EXCLUSIVE);
-					} catch (LockedException $ex) {
-						throw new FileLocked($e->getMessage(), $e->getCode(), $e);
-					}
-				}
-			}
-
-			if (!is_resource($data)) {
-				$tmpData = fopen('php://temp', 'r+');
-				if ($data !== null) {
-					fwrite($tmpData, $data);
-					rewind($tmpData);
-				}
-				$data = $tmpData;
-			}
-
-			$data = HashWrapper::wrap($data, 'md5', function ($hash) {
-				$this->header('X-Hash-MD5: ' . $hash);
-			});
-			$data = HashWrapper::wrap($data, 'sha1', function ($hash) {
-				$this->header('X-Hash-SHA1: ' . $hash);
-			});
-			$data = HashWrapper::wrap($data, 'sha256', function ($hash) {
-				$this->header('X-Hash-SHA256: ' . $hash);
-			});
-
-			if ($partStorage->instanceOfStorage(Storage\IWriteStreamStorage::class)) {
-				$isEOF = false;
-				$wrappedData = CallbackWrapper::wrap($data, null, null, null, null, function ($stream) use (&$isEOF) {
-					$isEOF = feof($stream);
-				});
-
-				$result = true;
-				$count = -1;
-				try {
-					$count = $partStorage->writeStream($internalPartPath, $wrappedData);
-				} catch (GenericFileException $e) {
-					$result = false;
-				} catch (BadGateway $e) {
-					throw $e;
-				}
-
-
-				if ($result === false) {
-					$result = $isEOF;
-					if (is_resource($wrappedData)) {
-						$result = feof($wrappedData);
-					}
-				}
-			} else {
-				$target = $partStorage->fopen($internalPartPath, 'wb');
-				if ($target === false) {
-					\OC::$server->getLogger()->error('\OC\Files\Filesystem::fopen() failed', ['app' => 'webdav']);
-					// because we have no clue about the cause we can only throw back a 500/Internal Server Error
-					throw new Exception($this->l10n->t('Could not write file contents'));
-				}
-				[$count, $result] = \OC_Helper::streamCopy($data, $target);
-				fclose($target);
-			}
-
-			if ($result === false) {
-				$expected = -1;
-				if (isset($_SERVER['CONTENT_LENGTH'])) {
-					$expected = $_SERVER['CONTENT_LENGTH'];
-				}
-				if ($expected !== "0") {
-					throw new Exception(
-						$this->l10n->t(
-							'Error while copying file to target location (copied: %1$s, expected filesize: %2$s)',
-							[
-								$this->l10n->n('%n byte', '%n bytes', $count),
-								$this->l10n->n('%n byte', '%n bytes', $expected),
-							],
-						)
-					);
-				}
-			}
-
-			// if content length is sent by client:
-			// double check if the file was fully received
-			// compare expected and actual size
-			if (isset($_SERVER['CONTENT_LENGTH']) && $_SERVER['REQUEST_METHOD'] === 'PUT') {
-				$expected = (int)$_SERVER['CONTENT_LENGTH'];
-				if ($count !== $expected) {
-					throw new BadRequest(
-						$this->l10n->t(
-							'Expected filesize of %1$s but read (from Nextcloud client) and wrote (to Nextcloud storage) %2$s. Could either be a network problem on the sending side or a problem writing to the storage on the server side.',
-							[
-								$this->l10n->n('%n byte', '%n bytes', $expected),
-								$this->l10n->n('%n byte', '%n bytes', $count),
-							],
-						)
-					);
-				}
-			}
-		} catch (\Exception $e) {
-			$context = [];
-
-			if ($e instanceof LockedException) {
-				$context['level'] = ILogger::DEBUG;
-			}
-
-			\OC::$server->getLogger()->logException($e, $context);
-			if ($needsPartFile) {
-				$partStorage->unlink($internalPartPath);
-			}
-			$this->convertToSabreException($e);
-		}
-
-		try {
-			if ($needsPartFile) {
-				if ($view && !$this->emitPreHooks($exists)) {
-					$partStorage->unlink($internalPartPath);
-					throw new Exception($this->l10n->t('Could not rename part file to final file, canceled by hook'));
-				}
-				try {
-					$this->changeLock(ILockingProvider::LOCK_EXCLUSIVE);
-				} catch (LockedException $e) {
-					// during very large uploads, the shared lock we got at the start might have been expired
-					// meaning that the above lock can fail not just only because somebody else got a shared lock
-					// or because there is no existing shared lock to make exclusive
-					//
-					// Thus we try to get a new exclusive lock, if the original lock failed because of a different shared
-					// lock this will still fail, if our original shared lock expired the new lock will be successful and
-					// the entire operation will be safe
-
-					try {
-						$this->acquireLock(ILockingProvider::LOCK_EXCLUSIVE);
-					} catch (LockedException $ex) {
-						if ($needsPartFile) {
-							$partStorage->unlink($internalPartPath);
-						}
-						throw new FileLocked($e->getMessage(), $e->getCode(), $e);
-					}
-				}
-
-				// rename to correct path
-				try {
-					$renameOkay = $storage->moveFromStorage($partStorage, $internalPartPath, $internalPath);
-					$fileExists = $storage->file_exists($internalPath);
-					if ($renameOkay === false || $fileExists === false) {
-						\OC::$server->getLogger()->error('renaming part file to final file failed $renameOkay: ' . ($renameOkay ? 'true' : 'false') . ', $fileExists: ' . ($fileExists ? 'true' : 'false') . ')', ['app' => 'webdav']);
-						throw new Exception($this->l10n->t('Could not rename part file to final file'));
-					}
-				} catch (ForbiddenException $ex) {
-					if (!$ex->getRetry()) {
-						$partStorage->unlink($internalPartPath);
-					}
-					throw new DAVForbiddenException($ex->getMessage(), $ex->getRetry());
-				} catch (\Exception $e) {
-					$partStorage->unlink($internalPartPath);
-					$this->convertToSabreException($e);
-				}
-			}
-
-			// since we skipped the view we need to scan and emit the hooks ourselves
-			$storage->getUpdater()->update($internalPath);
-
-			try {
-				$this->changeLock(ILockingProvider::LOCK_SHARED);
-			} catch (LockedException $e) {
-				throw new FileLocked($e->getMessage(), $e->getCode(), $e);
-			}
-
-			// allow sync clients to send the mtime along in a header
-			if (isset($this->request->server['HTTP_X_OC_MTIME'])) {
-				$mtime = $this->sanitizeMtime($this->request->server['HTTP_X_OC_MTIME']);
-				if ($this->fileView->touch($this->path, $mtime)) {
-					$this->header('X-OC-MTime: accepted');
-				}
-			}
-
-			$fileInfoUpdate = [
-				'upload_time' => time()
-			];
-
-			// allow sync clients to send the creation time along in a header
-			if (isset($this->request->server['HTTP_X_OC_CTIME'])) {
-				$ctime = $this->sanitizeMtime($this->request->server['HTTP_X_OC_CTIME']);
-				$fileInfoUpdate['creation_time'] = $ctime;
-				$this->header('X-OC-CTime: accepted');
-			}
-
-			$this->fileView->putFileInfo($this->path, $fileInfoUpdate);
-
-			if ($view) {
-				$this->emitPostHooks($exists);
-			}
-
-			$this->refreshInfo();
-
-			if (isset($this->request->server['HTTP_OC_CHECKSUM'])) {
-				$checksum = trim($this->request->server['HTTP_OC_CHECKSUM']);
-				$this->setChecksum($checksum);
-			} elseif ($this->getChecksum() !== null && $this->getChecksum() !== '') {
-				$this->setChecksum('');
-			}
-		} catch (StorageNotAvailableException $e) {
-			throw new ServiceUnavailable($this->l10n->t('Failed to check file size: %1$s', [$e->getMessage()]), 0, $e);
-		}
-
-		return '"' . $this->info->getEtag() . '"';
-	}
-
-	private function getPartFileBasePath($path) {
-		$partFileInStorage = \OC::$server->getConfig()->getSystemValue('part_file_in_storage', true);
-		if ($partFileInStorage) {
-			return $path;
-		} else {
-			return md5($path); // will place it in the root of the view with a unique name
-		}
-	}
-
-	/**
-	 * @param string $path
-	 */
-	private function emitPreHooks($exists, $path = null) {
-		if (is_null($path)) {
-			$path = $this->path;
-		}
-		$hookPath = Filesystem::getView()->getRelativePath($this->fileView->getAbsolutePath($path));
-		$run = true;
-
-		if (!$exists) {
-			\OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_create, [
-				\OC\Files\Filesystem::signal_param_path => $hookPath,
-				\OC\Files\Filesystem::signal_param_run => &$run,
-			]);
-		} else {
-			\OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_update, [
-				\OC\Files\Filesystem::signal_param_path => $hookPath,
-				\OC\Files\Filesystem::signal_param_run => &$run,
-			]);
-		}
-		\OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_write, [
-			\OC\Files\Filesystem::signal_param_path => $hookPath,
-			\OC\Files\Filesystem::signal_param_run => &$run,
-		]);
-		return $run;
-	}
-
-	/**
-	 * @param string $path
-	 */
-	private function emitPostHooks($exists, $path = null) {
-		if (is_null($path)) {
-			$path = $this->path;
-		}
-		$hookPath = Filesystem::getView()->getRelativePath($this->fileView->getAbsolutePath($path));
-		if (!$exists) {
-			\OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_post_create, [
-				\OC\Files\Filesystem::signal_param_path => $hookPath
-			]);
-		} else {
-			\OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_post_update, [
-				\OC\Files\Filesystem::signal_param_path => $hookPath
-			]);
-		}
-		\OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_post_write, [
-			\OC\Files\Filesystem::signal_param_path => $hookPath
-		]);
-	}
-
-	/**
-	 * Returns the data
-	 *
-	 * @return resource
-	 * @throws Forbidden
-	 * @throws ServiceUnavailable
-	 */
-	public function get() {
-		//throw exception if encryption is disabled but files are still encrypted
-		try {
-			if (!$this->info->isReadable()) {
-				// do a if the file did not exist
-				throw new NotFound();
-			}
-			try {
-				$res = $this->fileView->fopen(ltrim($this->path, '/'), 'rb');
-			} catch (\Exception $e) {
-				$this->convertToSabreException($e);
-			}
-			if ($res === false) {
-				throw new ServiceUnavailable($this->l10n->t('Could not open file'));
-			}
-			return $res;
-		} catch (GenericEncryptionException $e) {
-			// returning 503 will allow retry of the operation at a later point in time
-			throw new ServiceUnavailable($this->l10n->t('Encryption not ready: %1$s', [$e->getMessage()]));
-		} catch (StorageNotAvailableException $e) {
-			throw new ServiceUnavailable($this->l10n->t('Failed to open file: %1$s', [$e->getMessage()]));
-		} catch (ForbiddenException $ex) {
-			throw new DAVForbiddenException($ex->getMessage(), $ex->getRetry());
-		} catch (LockedException $e) {
-			throw new FileLocked($e->getMessage(), $e->getCode(), $e);
-		}
-	}
-
-	/**
-	 * Delete the current file
-	 *
-	 * @throws Forbidden
-	 * @throws ServiceUnavailable
-	 */
-	public function delete() {
-		if (!$this->info->isDeletable()) {
-			throw new Forbidden();
-		}
-
-		try {
-			if (!$this->fileView->unlink($this->path)) {
-				// assume it wasn't possible to delete due to permissions
-				throw new Forbidden();
-			}
-		} catch (StorageNotAvailableException $e) {
-			throw new ServiceUnavailable($this->l10n->t('Failed to unlink: %1$s', [$e->getMessage()]));
-		} catch (ForbiddenException $ex) {
-			throw new DAVForbiddenException($ex->getMessage(), $ex->getRetry());
-		} catch (LockedException $e) {
-			throw new FileLocked($e->getMessage(), $e->getCode(), $e);
-		}
-	}
-
-	/**
-	 * Returns the mime-type for a file
-	 *
-	 * If null is returned, we'll assume application/octet-stream
-	 *
-	 * @return string
-	 */
-	public function getContentType() {
-		$mimeType = $this->info->getMimetype();
-
-		// PROPFIND needs to return the correct mime type, for consistency with the web UI
-		if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PROPFIND') {
-			return $mimeType;
-		}
-		return \OC::$server->getMimeTypeDetector()->getSecureMimeType($mimeType);
-	}
-
-	/**
-	 * @return array|bool
-	 */
-	public function getDirectDownload() {
-		if (\OCP\App::isEnabled('encryption')) {
-			return [];
-		}
-		/** @var \OCP\Files\Storage $storage */
-		[$storage, $internalPath] = $this->fileView->resolvePath($this->path);
-		if (is_null($storage)) {
-			return [];
-		}
-
-		return $storage->getDirectDownload($internalPath);
-	}
-
-	/**
-	 * @param resource $data
-	 * @return null|string
-	 * @throws Exception
-	 * @throws BadRequest
-	 * @throws NotImplemented
-	 * @throws ServiceUnavailable
-	 */
-	private function createFileChunked($data) {
-		[$path, $name] = \Sabre\Uri\split($this->path);
-
-		$info = \OC_FileChunking::decodeName($name);
-		if (empty($info)) {
-			throw new NotImplemented($this->l10n->t('Invalid chunk name'));
-		}
-
-		$chunk_handler = new \OC_FileChunking($info);
-		$bytesWritten = $chunk_handler->store($info['index'], $data);
-
-		//detect aborted upload
-		if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PUT') {
-			if (isset($_SERVER['CONTENT_LENGTH'])) {
-				$expected = (int)$_SERVER['CONTENT_LENGTH'];
-				if ($bytesWritten !== $expected) {
-					$chunk_handler->remove($info['index']);
-					throw new BadRequest(
-						$this->l10n->t(
-							'Expected filesize of %1$s but read (from Nextcloud client) and wrote (to Nextcloud storage) %2$s. Could either be a network problem on the sending side or a problem writing to the storage on the server side.',
-							[
-								$this->l10n->n('%n byte', '%n bytes', $expected),
-								$this->l10n->n('%n byte', '%n bytes', $bytesWritten),
-							],
-						)
-					);
-				}
-			}
-		}
-
-		if ($chunk_handler->isComplete()) {
-			/** @var Storage $storage */
-			[$storage,] = $this->fileView->resolvePath($path);
-			$needsPartFile = $storage->needsPartFile();
-			$partFile = null;
-
-			$targetPath = $path . '/' . $info['name'];
-			/** @var \OC\Files\Storage\Storage $targetStorage */
-			[$targetStorage, $targetInternalPath] = $this->fileView->resolvePath($targetPath);
-
-			$exists = $this->fileView->file_exists($targetPath);
-
-			try {
-				$this->fileView->lockFile($targetPath, ILockingProvider::LOCK_SHARED);
-
-				$this->emitPreHooks($exists, $targetPath);
-				$this->fileView->changeLock($targetPath, ILockingProvider::LOCK_EXCLUSIVE);
-				/** @var \OC\Files\Storage\Storage $targetStorage */
-				[$targetStorage, $targetInternalPath] = $this->fileView->resolvePath($targetPath);
-
-				if ($needsPartFile) {
-					// we first assembly the target file as a part file
-					$partFile = $this->getPartFileBasePath($path . '/' . $info['name']) . '.ocTransferId' . $info['transferid'] . '.part';
-					/** @var \OC\Files\Storage\Storage $targetStorage */
-					[$partStorage, $partInternalPath] = $this->fileView->resolvePath($partFile);
-
-
-					$chunk_handler->file_assemble($partStorage, $partInternalPath);
-
-					// here is the final atomic rename
-					$renameOkay = $targetStorage->moveFromStorage($partStorage, $partInternalPath, $targetInternalPath);
-					$fileExists = $targetStorage->file_exists($targetInternalPath);
-					if ($renameOkay === false || $fileExists === false) {
-						\OC::$server->getLogger()->error('\OC\Files\Filesystem::rename() failed', ['app' => 'webdav']);
-						// only delete if an error occurred and the target file was already created
-						if ($fileExists) {
-							// set to null to avoid double-deletion when handling exception
-							// stray part file
-							$partFile = null;
-							$targetStorage->unlink($targetInternalPath);
-						}
-						$this->fileView->changeLock($targetPath, ILockingProvider::LOCK_SHARED);
-						throw new Exception($this->l10n->t('Could not rename part file assembled from chunks'));
-					}
-				} else {
-					// assemble directly into the final file
-					$chunk_handler->file_assemble($targetStorage, $targetInternalPath);
-				}
-
-				// allow sync clients to send the mtime along in a header
-				if (isset($this->request->server['HTTP_X_OC_MTIME'])) {
-					$mtime = $this->sanitizeMtime($this->request->server['HTTP_X_OC_MTIME']);
-					if ($targetStorage->touch($targetInternalPath, $mtime)) {
-						$this->header('X-OC-MTime: accepted');
-					}
-				}
-
-				// since we skipped the view we need to scan and emit the hooks ourselves
-				$targetStorage->getUpdater()->update($targetInternalPath);
-
-				$this->fileView->changeLock($targetPath, ILockingProvider::LOCK_SHARED);
-
-				$this->emitPostHooks($exists, $targetPath);
-
-				// FIXME: should call refreshInfo but can't because $this->path is not the of the final file
-				$info = $this->fileView->getFileInfo($targetPath);
-
-				if (isset($this->request->server['HTTP_OC_CHECKSUM'])) {
-					$checksum = trim($this->request->server['HTTP_OC_CHECKSUM']);
-					$this->fileView->putFileInfo($targetPath, ['checksum' => $checksum]);
-				} elseif ($info->getChecksum() !== null && $info->getChecksum() !== '') {
-					$this->fileView->putFileInfo($this->path, ['checksum' => '']);
-				}
-
-				$this->fileView->unlockFile($targetPath, ILockingProvider::LOCK_SHARED);
-
-				return $info->getEtag();
-			} catch (\Exception $e) {
-				if ($partFile !== null) {
-					$targetStorage->unlink($targetInternalPath);
-				}
-				$this->convertToSabreException($e);
-			}
-		}
-
-		return null;
-	}
-
-	/**
-	 * Convert the given exception to a SabreException instance
-	 *
-	 * @param \Exception $e
-	 *
-	 * @throws \Sabre\DAV\Exception
-	 */
-	private function convertToSabreException(\Exception $e) {
-		if ($e instanceof \Sabre\DAV\Exception) {
-			throw $e;
-		}
-		if ($e instanceof NotPermittedException) {
-			// a more general case - due to whatever reason the content could not be written
-			throw new Forbidden($e->getMessage(), 0, $e);
-		}
-		if ($e instanceof ForbiddenException) {
-			// the path for the file was forbidden
-			throw new DAVForbiddenException($e->getMessage(), $e->getRetry(), $e);
-		}
-		if ($e instanceof EntityTooLargeException) {
-			// the file is too big to be stored
-			throw new EntityTooLarge($e->getMessage(), 0, $e);
-		}
-		if ($e instanceof InvalidContentException) {
-			// the file content is not permitted
-			throw new UnsupportedMediaType($e->getMessage(), 0, $e);
-		}
-		if ($e instanceof InvalidPathException) {
-			// the path for the file was not valid
-			// TODO: find proper http status code for this case
-			throw new Forbidden($e->getMessage(), 0, $e);
-		}
-		if ($e instanceof LockedException || $e instanceof LockNotAcquiredException) {
-			// the file is currently being written to by another process
-			throw new FileLocked($e->getMessage(), $e->getCode(), $e);
-		}
-		if ($e instanceof GenericEncryptionException) {
-			// returning 503 will allow retry of the operation at a later point in time
-			throw new ServiceUnavailable($this->l10n->t('Encryption not ready: %1$s', [$e->getMessage()]), 0, $e);
-		}
-		if ($e instanceof StorageNotAvailableException) {
-			throw new ServiceUnavailable($this->l10n->t('Failed to write file contents: %1$s', [$e->getMessage()]), 0, $e);
-		}
-		if ($e instanceof NotFoundException) {
-			throw new NotFound($this->l10n->t('File not found: %1$s', [$e->getMessage()]), 0, $e);
-		}
-
-		throw new \Sabre\DAV\Exception($e->getMessage(), 0, $e);
-	}
-
-	/**
-	 * Get the checksum for this file
-	 *
-	 * @return string|null
-	 */
-	public function getChecksum() {
-		if (!$this->info) {
-			return null;
-		}
-		return $this->info->getChecksum();
-	}
-
-	public function setChecksum(string $checksum) {
-		$this->fileView->putFileInfo($this->path, ['checksum' => $checksum]);
-		$this->refreshInfo();
-	}
-
-	protected function header($string) {
-		if (!\OC::$CLI) {
-			\header($string);
-		}
-	}
-
-	public function hash(string $type) {
-		return $this->fileView->hash($type, $this->path);
-	}
+    protected $request;
+
+    protected IL10N $l10n;
+
+    /**
+     * Sets up the node, expects a full path name
+     *
+     * @param \OC\Files\View $view
+     * @param \OCP\Files\FileInfo $info
+     * @param \OCP\Share\IManager $shareManager
+     * @param \OC\AppFramework\Http\Request $request
+     */
+    public function __construct(View $view, FileInfo $info, IManager $shareManager = null, Request $request = null) {
+        parent::__construct($view, $info, $shareManager);
+
+        // Querying IL10N directly results in a dependency loop
+        /** @var IL10NFactory $l10nFactory */
+        $l10nFactory = \OC::$server->get(IL10NFactory::class);
+        $this->l10n = $l10nFactory->get(Application::APP_ID);
+
+        if (isset($request)) {
+            $this->request = $request;
+        } else {
+            $this->request = \OC::$server->getRequest();
+        }
+    }
+
+    /**
+     * Updates the data
+     *
+     * The data argument is a readable stream resource.
+     *
+     * After a successful put operation, you may choose to return an ETag. The
+     * etag must always be surrounded by double-quotes. These quotes must
+     * appear in the actual string you're returning.
+     *
+     * Clients may use the ETag from a PUT request to later on make sure that
+     * when they update the file, the contents haven't changed in the mean
+     * time.
+     *
+     * If you don't plan to store the file byte-by-byte, and you return a
+     * different object on a subsequent GET you are strongly recommended to not
+     * return an ETag, and just return null.
+     *
+     * @param resource $data
+     *
+     * @throws Forbidden
+     * @throws UnsupportedMediaType
+     * @throws BadRequest
+     * @throws Exception
+     * @throws EntityTooLarge
+     * @throws ServiceUnavailable
+     * @throws FileLocked
+     * @return string|null
+     */
+    public function put($data) {
+        try {
+            $exists = $this->fileView->file_exists($this->path);
+            if ($this->info && $exists && !$this->info->isUpdateable()) {
+                throw new Forbidden();
+            }
+        } catch (StorageNotAvailableException $e) {
+            throw new ServiceUnavailable($this->l10n->t('File is not updatable: %1$s', [$e->getMessage()]));
+        }
+
+        // verify path of the target
+        $this->verifyPath();
+
+        // chunked handling
+        if (isset($_SERVER['HTTP_OC_CHUNKED'])) {
+            try {
+                return $this->createFileChunked($data);
+            } catch (\Exception $e) {
+                $this->convertToSabreException($e);
+            }
+        }
+
+        /** @var Storage $partStorage */
+        [$partStorage] = $this->fileView->resolvePath($this->path);
+        $needsPartFile = $partStorage->needsPartFile() && (strlen($this->path) > 1);
+
+        $view = \OC\Files\Filesystem::getView();
+
+        if ($needsPartFile) {
+            // mark file as partial while uploading (ignored by the scanner)
+            $partFilePath = $this->getPartFileBasePath($this->path) . '.ocTransferId' . rand() . '.part';
+
+            if (!$view->isCreatable($partFilePath) && $view->isUpdatable($this->path)) {
+                $needsPartFile = false;
+            }
+        }
+        if (!$needsPartFile) {
+            // upload file directly as the final path
+            $partFilePath = $this->path;
+
+            if ($view && !$this->emitPreHooks($exists)) {
+                throw new Exception($this->l10n->t('Could not write to final file, canceled by hook'));
+            }
+        }
+
+        // the part file and target file might be on a different storage in case of a single file storage (e.g. single file share)
+        /** @var \OC\Files\Storage\Storage $partStorage */
+        [$partStorage, $internalPartPath] = $this->fileView->resolvePath($partFilePath);
+        /** @var \OC\Files\Storage\Storage $storage */
+        [$storage, $internalPath] = $this->fileView->resolvePath($this->path);
+        try {
+            if (!$needsPartFile) {
+                try {
+                    $this->changeLock(ILockingProvider::LOCK_EXCLUSIVE);
+                } catch (LockedException $e) {
+                    // during very large uploads, the shared lock we got at the start might have been expired
+                    // meaning that the above lock can fail not just only because somebody else got a shared lock
+                    // or because there is no existing shared lock to make exclusive
+                    //
+                    // Thus we try to get a new exclusive lock, if the original lock failed because of a different shared
+                    // lock this will still fail, if our original shared lock expired the new lock will be successful and
+                    // the entire operation will be safe
+
+                    try {
+                        $this->acquireLock(ILockingProvider::LOCK_EXCLUSIVE);
+                    } catch (LockedException $ex) {
+                        throw new FileLocked($e->getMessage(), $e->getCode(), $e);
+                    }
+                }
+            }
+
+            if (!is_resource($data)) {
+                $tmpData = fopen('php://temp', 'r+');
+                if ($data !== null) {
+                    fwrite($tmpData, $data);
+                    rewind($tmpData);
+                }
+                $data = $tmpData;
+            }
+
+            $data = HashWrapper::wrap($data, 'md5', function ($hash) {
+                $this->header('X-Hash-MD5: ' . $hash);
+            });
+            $data = HashWrapper::wrap($data, 'sha1', function ($hash) {
+                $this->header('X-Hash-SHA1: ' . $hash);
+            });
+            $data = HashWrapper::wrap($data, 'sha256', function ($hash) {
+                $this->header('X-Hash-SHA256: ' . $hash);
+            });
+
+            if ($partStorage->instanceOfStorage(Storage\IWriteStreamStorage::class)) {
+                $isEOF = false;
+                $wrappedData = CallbackWrapper::wrap($data, null, null, null, null, function ($stream) use (&$isEOF) {
+                    $isEOF = feof($stream);
+                });
+
+                $result = true;
+                $count = -1;
+                try {
+                    $count = $partStorage->writeStream($internalPartPath, $wrappedData);
+                } catch (GenericFileException $e) {
+                    $result = false;
+                } catch (BadGateway $e) {
+                    throw $e;
+                }
+
+
+                if ($result === false) {
+                    $result = $isEOF;
+                    if (is_resource($wrappedData)) {
+                        $result = feof($wrappedData);
+                    }
+                }
+            } else {
+                $target = $partStorage->fopen($internalPartPath, 'wb');
+                if ($target === false) {
+                    \OC::$server->getLogger()->error('\OC\Files\Filesystem::fopen() failed', ['app' => 'webdav']);
+                    // because we have no clue about the cause we can only throw back a 500/Internal Server Error
+                    throw new Exception($this->l10n->t('Could not write file contents'));
+                }
+                [$count, $result] = \OC_Helper::streamCopy($data, $target);
+                fclose($target);
+            }
+
+            if ($result === false) {
+                $expected = -1;
+                if (isset($_SERVER['CONTENT_LENGTH'])) {
+                    $expected = $_SERVER['CONTENT_LENGTH'];
+                }
+                if ($expected !== "0") {
+                    throw new Exception(
+                        $this->l10n->t(
+                            'Error while copying file to target location (copied: %1$s, expected filesize: %2$s)',
+                            [
+                                $this->l10n->n('%n byte', '%n bytes', $count),
+                                $this->l10n->n('%n byte', '%n bytes', $expected),
+                            ],
+                        )
+                    );
+                }
+            }
+
+            // if content length is sent by client:
+            // double check if the file was fully received
+            // compare expected and actual size
+            if (isset($_SERVER['CONTENT_LENGTH']) && $_SERVER['REQUEST_METHOD'] === 'PUT') {
+                $expected = (int)$_SERVER['CONTENT_LENGTH'];
+                if ($count !== $expected) {
+                    throw new BadRequest(
+                        $this->l10n->t(
+                            'Expected filesize of %1$s but read (from Nextcloud client) and wrote (to Nextcloud storage) %2$s. Could either be a network problem on the sending side or a problem writing to the storage on the server side.',
+                            [
+                                $this->l10n->n('%n byte', '%n bytes', $expected),
+                                $this->l10n->n('%n byte', '%n bytes', $count),
+                            ],
+                        )
+                    );
+                }
+            }
+        } catch (\Exception $e) {
+            $context = [];
+
+            if ($e instanceof LockedException) {
+                $context['level'] = ILogger::DEBUG;
+            }
+
+            \OC::$server->getLogger()->logException($e, $context);
+            if ($needsPartFile) {
+                $partStorage->unlink($internalPartPath);
+            }
+            $this->convertToSabreException($e);
+        }
+
+        try {
+            if ($needsPartFile) {
+                if ($view && !$this->emitPreHooks($exists)) {
+                    $partStorage->unlink($internalPartPath);
+                    throw new Exception($this->l10n->t('Could not rename part file to final file, canceled by hook'));
+                }
+                try {
+                    $this->changeLock(ILockingProvider::LOCK_EXCLUSIVE);
+                } catch (LockedException $e) {
+                    // during very large uploads, the shared lock we got at the start might have been expired
+                    // meaning that the above lock can fail not just only because somebody else got a shared lock
+                    // or because there is no existing shared lock to make exclusive
+                    //
+                    // Thus we try to get a new exclusive lock, if the original lock failed because of a different shared
+                    // lock this will still fail, if our original shared lock expired the new lock will be successful and
+                    // the entire operation will be safe
+
+                    try {
+                        $this->acquireLock(ILockingProvider::LOCK_EXCLUSIVE);
+                    } catch (LockedException $ex) {
+                        if ($needsPartFile) {
+                            $partStorage->unlink($internalPartPath);
+                        }
+                        throw new FileLocked($e->getMessage(), $e->getCode(), $e);
+                    }
+                }
+
+                // rename to correct path
+                try {
+                    $renameOkay = $storage->moveFromStorage($partStorage, $internalPartPath, $internalPath);
+                    $fileExists = $storage->file_exists($internalPath);
+                    if ($renameOkay === false || $fileExists === false) {
+                        \OC::$server->getLogger()->error('renaming part file to final file failed $renameOkay: ' . ($renameOkay ? 'true' : 'false') . ', $fileExists: ' . ($fileExists ? 'true' : 'false') . ')', ['app' => 'webdav']);
+                        throw new Exception($this->l10n->t('Could not rename part file to final file'));
+                    }
+                } catch (ForbiddenException $ex) {
+                    if (!$ex->getRetry()) {
+                        $partStorage->unlink($internalPartPath);
+                    }
+                    throw new DAVForbiddenException($ex->getMessage(), $ex->getRetry());
+                } catch (\Exception $e) {
+                    $partStorage->unlink($internalPartPath);
+                    $this->convertToSabreException($e);
+                }
+            }
+
+            // since we skipped the view we need to scan and emit the hooks ourselves
+            $storage->getUpdater()->update($internalPath);
+
+            try {
+                $this->changeLock(ILockingProvider::LOCK_SHARED);
+            } catch (LockedException $e) {
+                throw new FileLocked($e->getMessage(), $e->getCode(), $e);
+            }
+
+            // allow sync clients to send the mtime along in a header
+            if (isset($this->request->server['HTTP_X_OC_MTIME'])) {
+                $mtime = $this->sanitizeMtime($this->request->server['HTTP_X_OC_MTIME']);
+                if ($this->fileView->touch($this->path, $mtime)) {
+                    $this->header('X-OC-MTime: accepted');
+                }
+            }
+
+            $fileInfoUpdate = [
+                'upload_time' => time()
+            ];
+
+            // allow sync clients to send the creation time along in a header
+            if (isset($this->request->server['HTTP_X_OC_CTIME'])) {
+                $ctime = $this->sanitizeMtime($this->request->server['HTTP_X_OC_CTIME']);
+                $fileInfoUpdate['creation_time'] = $ctime;
+                $this->header('X-OC-CTime: accepted');
+            }
+
+            $this->fileView->putFileInfo($this->path, $fileInfoUpdate);
+
+            if ($view) {
+                $this->emitPostHooks($exists);
+            }
+
+            $this->refreshInfo();
+
+            if (isset($this->request->server['HTTP_OC_CHECKSUM'])) {
+                $checksum = trim($this->request->server['HTTP_OC_CHECKSUM']);
+                $this->setChecksum($checksum);
+            } elseif ($this->getChecksum() !== null && $this->getChecksum() !== '') {
+                $this->setChecksum('');
+            }
+        } catch (StorageNotAvailableException $e) {
+            throw new ServiceUnavailable($this->l10n->t('Failed to check file size: %1$s', [$e->getMessage()]), 0, $e);
+        }
+
+        return '"' . $this->info->getEtag() . '"';
+    }
+
+    private function getPartFileBasePath($path) {
+        $partFileInStorage = \OC::$server->getConfig()->getSystemValue('part_file_in_storage', true);
+        if ($partFileInStorage) {
+            return $path;
+        } else {
+            return md5($path); // will place it in the root of the view with a unique name
+        }
+    }
+
+    /**
+     * @param string $path
+     */
+    private function emitPreHooks($exists, $path = null) {
+        if (is_null($path)) {
+            $path = $this->path;
+        }
+        $hookPath = Filesystem::getView()->getRelativePath($this->fileView->getAbsolutePath($path));
+        $run = true;
+
+        if (!$exists) {
+            \OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_create, [
+                \OC\Files\Filesystem::signal_param_path => $hookPath,
+                \OC\Files\Filesystem::signal_param_run => &$run,
+            ]);
+        } else {
+            \OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_update, [
+                \OC\Files\Filesystem::signal_param_path => $hookPath,
+                \OC\Files\Filesystem::signal_param_run => &$run,
+            ]);
+        }
+        \OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_write, [
+            \OC\Files\Filesystem::signal_param_path => $hookPath,
+            \OC\Files\Filesystem::signal_param_run => &$run,
+        ]);
+        return $run;
+    }
+
+    /**
+     * @param string $path
+     */
+    private function emitPostHooks($exists, $path = null) {
+        if (is_null($path)) {
+            $path = $this->path;
+        }
+        $hookPath = Filesystem::getView()->getRelativePath($this->fileView->getAbsolutePath($path));
+        if (!$exists) {
+            \OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_post_create, [
+                \OC\Files\Filesystem::signal_param_path => $hookPath
+            ]);
+        } else {
+            \OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_post_update, [
+                \OC\Files\Filesystem::signal_param_path => $hookPath
+            ]);
+        }
+        \OC_Hook::emit(\OC\Files\Filesystem::CLASSNAME, \OC\Files\Filesystem::signal_post_write, [
+            \OC\Files\Filesystem::signal_param_path => $hookPath
+        ]);
+    }
+
+    /**
+     * Returns the data
+     *
+     * @return resource
+     * @throws Forbidden
+     * @throws ServiceUnavailable
+     */
+    public function get() {
+        //throw exception if encryption is disabled but files are still encrypted
+        try {
+            if (!$this->info->isReadable()) {
+                // do a if the file did not exist
+                throw new NotFound();
+            }
+            try {
+                $res = $this->fileView->fopen(ltrim($this->path, '/'), 'rb');
+            } catch (\Exception $e) {
+                $this->convertToSabreException($e);
+            }
+            if ($res === false) {
+                throw new ServiceUnavailable($this->l10n->t('Could not open file'));
+            }
+            return $res;
+        } catch (GenericEncryptionException $e) {
+            // returning 503 will allow retry of the operation at a later point in time
+            throw new ServiceUnavailable($this->l10n->t('Encryption not ready: %1$s', [$e->getMessage()]));
+        } catch (StorageNotAvailableException $e) {
+            throw new ServiceUnavailable($this->l10n->t('Failed to open file: %1$s', [$e->getMessage()]));
+        } catch (ForbiddenException $ex) {
+            throw new DAVForbiddenException($ex->getMessage(), $ex->getRetry());
+        } catch (LockedException $e) {
+            throw new FileLocked($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    /**
+     * Delete the current file
+     *
+     * @throws Forbidden
+     * @throws ServiceUnavailable
+     */
+    public function delete() {
+        if (!$this->info->isDeletable()) {
+            throw new Forbidden();
+        }
+
+        try {
+            if (!$this->fileView->unlink($this->path)) {
+                // assume it wasn't possible to delete due to permissions
+                throw new Forbidden();
+            }
+        } catch (StorageNotAvailableException $e) {
+            throw new ServiceUnavailable($this->l10n->t('Failed to unlink: %1$s', [$e->getMessage()]));
+        } catch (ForbiddenException $ex) {
+            throw new DAVForbiddenException($ex->getMessage(), $ex->getRetry());
+        } catch (LockedException $e) {
+            throw new FileLocked($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    /**
+     * Returns the mime-type for a file
+     *
+     * If null is returned, we'll assume application/octet-stream
+     *
+     * @return string
+     */
+    public function getContentType() {
+        $mimeType = $this->info->getMimetype();
+
+        // PROPFIND needs to return the correct mime type, for consistency with the web UI
+        if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PROPFIND') {
+            return $mimeType;
+        }
+        return \OC::$server->getMimeTypeDetector()->getSecureMimeType($mimeType);
+    }
+
+    /**
+     * @return array|bool
+     */
+    public function getDirectDownload() {
+        if (\OCP\App::isEnabled('encryption')) {
+            return [];
+        }
+        /** @var \OCP\Files\Storage $storage */
+        [$storage, $internalPath] = $this->fileView->resolvePath($this->path);
+        if (is_null($storage)) {
+            return [];
+        }
+
+        return $storage->getDirectDownload($internalPath);
+    }
+
+    /**
+     * @param resource $data
+     * @return null|string
+     * @throws Exception
+     * @throws BadRequest
+     * @throws NotImplemented
+     * @throws ServiceUnavailable
+     */
+    private function createFileChunked($data) {
+        [$path, $name] = \Sabre\Uri\split($this->path);
+
+        $info = \OC_FileChunking::decodeName($name);
+        if (empty($info)) {
+            throw new NotImplemented($this->l10n->t('Invalid chunk name'));
+        }
+
+        $chunk_handler = new \OC_FileChunking($info);
+        $bytesWritten = $chunk_handler->store($info['index'], $data);
+
+        //detect aborted upload
+        if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PUT') {
+            if (isset($_SERVER['CONTENT_LENGTH'])) {
+                $expected = (int)$_SERVER['CONTENT_LENGTH'];
+                if ($bytesWritten !== $expected) {
+                    $chunk_handler->remove($info['index']);
+                    throw new BadRequest(
+                        $this->l10n->t(
+                            'Expected filesize of %1$s but read (from Nextcloud client) and wrote (to Nextcloud storage) %2$s. Could either be a network problem on the sending side or a problem writing to the storage on the server side.',
+                            [
+                                $this->l10n->n('%n byte', '%n bytes', $expected),
+                                $this->l10n->n('%n byte', '%n bytes', $bytesWritten),
+                            ],
+                        )
+                    );
+                }
+            }
+        }
+
+        if ($chunk_handler->isComplete()) {
+            /** @var Storage $storage */
+            [$storage,] = $this->fileView->resolvePath($path);
+            $needsPartFile = $storage->needsPartFile();
+            $partFile = null;
+
+            $targetPath = $path . '/' . $info['name'];
+            /** @var \OC\Files\Storage\Storage $targetStorage */
+            [$targetStorage, $targetInternalPath] = $this->fileView->resolvePath($targetPath);
+
+            $exists = $this->fileView->file_exists($targetPath);
+
+            try {
+                $this->fileView->lockFile($targetPath, ILockingProvider::LOCK_SHARED);
+
+                $this->emitPreHooks($exists, $targetPath);
+                $this->fileView->changeLock($targetPath, ILockingProvider::LOCK_EXCLUSIVE);
+                /** @var \OC\Files\Storage\Storage $targetStorage */
+                [$targetStorage, $targetInternalPath] = $this->fileView->resolvePath($targetPath);
+
+                if ($needsPartFile) {
+                    // we first assembly the target file as a part file
+                    $partFile = $this->getPartFileBasePath($path . '/' . $info['name']) . '.ocTransferId' . $info['transferid'] . '.part';
+                    /** @var \OC\Files\Storage\Storage $targetStorage */
+                    [$partStorage, $partInternalPath] = $this->fileView->resolvePath($partFile);
+
+
+                    $chunk_handler->file_assemble($partStorage, $partInternalPath);
+
+                    // here is the final atomic rename
+                    $renameOkay = $targetStorage->moveFromStorage($partStorage, $partInternalPath, $targetInternalPath);
+                    $fileExists = $targetStorage->file_exists($targetInternalPath);
+                    if ($renameOkay === false || $fileExists === false) {
+                        \OC::$server->getLogger()->error('\OC\Files\Filesystem::rename() failed', ['app' => 'webdav']);
+                        // only delete if an error occurred and the target file was already created
+                        if ($fileExists) {
+                            // set to null to avoid double-deletion when handling exception
+                            // stray part file
+                            $partFile = null;
+                            $targetStorage->unlink($targetInternalPath);
+                        }
+                        $this->fileView->changeLock($targetPath, ILockingProvider::LOCK_SHARED);
+                        throw new Exception($this->l10n->t('Could not rename part file assembled from chunks'));
+                    }
+                } else {
+                    // assemble directly into the final file
+                    $chunk_handler->file_assemble($targetStorage, $targetInternalPath);
+                }
+
+                // allow sync clients to send the mtime along in a header
+                if (isset($this->request->server['HTTP_X_OC_MTIME'])) {
+                    $mtime = $this->sanitizeMtime($this->request->server['HTTP_X_OC_MTIME']);
+                    if ($targetStorage->touch($targetInternalPath, $mtime)) {
+                        $this->header('X-OC-MTime: accepted');
+                    }
+                }
+
+                // since we skipped the view we need to scan and emit the hooks ourselves
+                $targetStorage->getUpdater()->update($targetInternalPath);
+
+                $this->fileView->changeLock($targetPath, ILockingProvider::LOCK_SHARED);
+
+                $this->emitPostHooks($exists, $targetPath);
+
+                // FIXME: should call refreshInfo but can't because $this->path is not the of the final file
+                $info = $this->fileView->getFileInfo($targetPath);
+
+                if (isset($this->request->server['HTTP_OC_CHECKSUM'])) {
+                    $checksum = trim($this->request->server['HTTP_OC_CHECKSUM']);
+                    $this->fileView->putFileInfo($targetPath, ['checksum' => $checksum]);
+                } elseif ($info->getChecksum() !== null && $info->getChecksum() !== '') {
+                    $this->fileView->putFileInfo($this->path, ['checksum' => '']);
+                }
+
+                $this->fileView->unlockFile($targetPath, ILockingProvider::LOCK_SHARED);
+
+                return $info->getEtag();
+            } catch (\Exception $e) {
+                if ($partFile !== null) {
+                    $targetStorage->unlink($targetInternalPath);
+                }
+                $this->convertToSabreException($e);
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * Convert the given exception to a SabreException instance
+     *
+     * @param \Exception $e
+     *
+     * @throws \Sabre\DAV\Exception
+     */
+    private function convertToSabreException(\Exception $e) {
+        if ($e instanceof \Sabre\DAV\Exception) {
+            throw $e;
+        }
+        if ($e instanceof NotPermittedException) {
+            // a more general case - due to whatever reason the content could not be written
+            throw new Forbidden($e->getMessage(), 0, $e);
+        }
+        if ($e instanceof ForbiddenException) {
+            // the path for the file was forbidden
+            throw new DAVForbiddenException($e->getMessage(), $e->getRetry(), $e);
+        }
+        if ($e instanceof EntityTooLargeException) {
+            // the file is too big to be stored
+            throw new EntityTooLarge($e->getMessage(), 0, $e);
+        }
+        if ($e instanceof InvalidContentException) {
+            // the file content is not permitted
+            throw new UnsupportedMediaType($e->getMessage(), 0, $e);
+        }
+        if ($e instanceof InvalidPathException) {
+            // the path for the file was not valid
+            // TODO: find proper http status code for this case
+            throw new Forbidden($e->getMessage(), 0, $e);
+        }
+        if ($e instanceof LockedException || $e instanceof LockNotAcquiredException) {
+            // the file is currently being written to by another process
+            throw new FileLocked($e->getMessage(), $e->getCode(), $e);
+        }
+        if ($e instanceof GenericEncryptionException) {
+            // returning 503 will allow retry of the operation at a later point in time
+            throw new ServiceUnavailable($this->l10n->t('Encryption not ready: %1$s', [$e->getMessage()]), 0, $e);
+        }
+        if ($e instanceof StorageNotAvailableException) {
+            throw new ServiceUnavailable($this->l10n->t('Failed to write file contents: %1$s', [$e->getMessage()]), 0, $e);
+        }
+        if ($e instanceof NotFoundException) {
+            throw new NotFound($this->l10n->t('File not found: %1$s', [$e->getMessage()]), 0, $e);
+        }
+
+        throw new \Sabre\DAV\Exception($e->getMessage(), 0, $e);
+    }
+
+    /**
+     * Get the checksum for this file
+     *
+     * @return string|null
+     */
+    public function getChecksum() {
+        if (!$this->info) {
+            return null;
+        }
+        return $this->info->getChecksum();
+    }
+
+    public function setChecksum(string $checksum) {
+        $this->fileView->putFileInfo($this->path, ['checksum' => $checksum]);
+        $this->refreshInfo();
+    }
+
+    protected function header($string) {
+        if (!\OC::$CLI) {
+            \header($string);
+        }
+    }
+
+    public function hash(string $type) {
+        return $this->fileView->hash($type, $this->path);
+    }
 }

apps/dav/lib/Connector/Sabre/ChecksumUpdatePlugin.php

Indentation +42 added lines, -42 removed lines

@@ -28,56 +28,56 @@
 use Sabre\HTTP\ResponseInterface;
 
 class ChecksumUpdatePlugin extends ServerPlugin {
-	/**
-	 * @var \Sabre\DAV\Server
-	 */
-	protected $server;
+    /**
+     * @var \Sabre\DAV\Server
+     */
+    protected $server;
 
-	public function initialize(\Sabre\DAV\Server $server) {
-		$this->server = $server;
-		$server->on('method:PATCH', [$this, 'httpPatch']);
-	}
+    public function initialize(\Sabre\DAV\Server $server) {
+        $this->server = $server;
+        $server->on('method:PATCH', [$this, 'httpPatch']);
+    }
 
-	public function getPluginName(): string {
-		return 'checksumupdate';
-	}
+    public function getPluginName(): string {
+        return 'checksumupdate';
+    }
 
-	public function getHTTPMethods($path): array {
-		$tree = $this->server->tree;
+    public function getHTTPMethods($path): array {
+        $tree = $this->server->tree;
 
-		if ($tree->nodeExists($path)) {
-			$node = $tree->getNodeForPath($path);
-			if ($node instanceof File) {
-				return ['PATCH'];
-			}
-		}
+        if ($tree->nodeExists($path)) {
+            $node = $tree->getNodeForPath($path);
+            if ($node instanceof File) {
+                return ['PATCH'];
+            }
+        }
 
-		return [];
-	}
+        return [];
+    }
 
-	public function getFeatures(): array {
-		return ['nextcloud-checksum-update'];
-	}
+    public function getFeatures(): array {
+        return ['nextcloud-checksum-update'];
+    }
 
-	public function httpPatch(RequestInterface $request, ResponseInterface $response) {
-		$path = $request->getPath();
+    public function httpPatch(RequestInterface $request, ResponseInterface $response) {
+        $path = $request->getPath();
 
-		$node = $this->server->tree->getNodeForPath($path);
-		if ($node instanceof File) {
-			$type = strtolower(
-				(string)$request->getHeader('X-Recalculate-Hash')
-			);
+        $node = $this->server->tree->getNodeForPath($path);
+        if ($node instanceof File) {
+            $type = strtolower(
+                (string)$request->getHeader('X-Recalculate-Hash')
+            );
 
-			$hash = $node->hash($type);
-			if ($hash) {
-				$checksum = strtoupper($type) . ':' . $hash;
-				$node->setChecksum($checksum);
-				$response->addHeader('OC-Checksum', $checksum);
-				$response->setHeader('Content-Length', '0');
-				$response->setStatus(204);
+            $hash = $node->hash($type);
+            if ($hash) {
+                $checksum = strtoupper($type) . ':' . $hash;
+                $node->setChecksum($checksum);
+                $response->addHeader('OC-Checksum', $checksum);
+                $response->setHeader('Content-Length', '0');
+                $response->setStatus(204);
 
-				return false;
-			}
-		}
-	}
+                return false;
+            }
+        }
+    }
 }

Spacing +2 added lines, -2 removed lines

@@ -65,12 +65,12 @@
 		$node = $this->server->tree->getNodeForPath($path);
 		if ($node instanceof File) {
 			$type = strtolower(
-				(string)$request->getHeader('X-Recalculate-Hash')
+				(string) $request->getHeader('X-Recalculate-Hash')
 			);
 
 			$hash = $node->hash($type);
 			if ($hash) {
-				$checksum = strtoupper($type) . ':' . $hash;
+				$checksum = strtoupper($type).':'.$hash;
 				$node->setChecksum($checksum);
 				$response->addHeader('OC-Checksum', $checksum);
 				$response->setHeader('Content-Length', '0');

apps/dav/lib/Connector/Sabre/ServerFactory.php

Indentation +168 added lines, -168 removed lines

@@ -48,184 +48,184 @@
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
 class ServerFactory {
-	/** @var IConfig */
-	private $config;
-	/** @var ILogger */
-	private $logger;
-	/** @var IDBConnection */
-	private $databaseConnection;
-	/** @var IUserSession */
-	private $userSession;
-	/** @var IMountManager */
-	private $mountManager;
-	/** @var ITagManager */
-	private $tagManager;
-	/** @var IRequest */
-	private $request;
-	/** @var IPreview  */
-	private $previewManager;
-	/** @var EventDispatcherInterface */
-	private $eventDispatcher;
-	/** @var IL10N */
-	private $l10n;
+    /** @var IConfig */
+    private $config;
+    /** @var ILogger */
+    private $logger;
+    /** @var IDBConnection */
+    private $databaseConnection;
+    /** @var IUserSession */
+    private $userSession;
+    /** @var IMountManager */
+    private $mountManager;
+    /** @var ITagManager */
+    private $tagManager;
+    /** @var IRequest */
+    private $request;
+    /** @var IPreview  */
+    private $previewManager;
+    /** @var EventDispatcherInterface */
+    private $eventDispatcher;
+    /** @var IL10N */
+    private $l10n;
 
-	/**
-	 * @param IConfig $config
-	 * @param ILogger $logger
-	 * @param IDBConnection $databaseConnection
-	 * @param IUserSession $userSession
-	 * @param IMountManager $mountManager
-	 * @param ITagManager $tagManager
-	 * @param IRequest $request
-	 * @param IPreview $previewManager
-	 */
-	public function __construct(
-		IConfig $config,
-		ILogger $logger,
-		IDBConnection $databaseConnection,
-		IUserSession $userSession,
-		IMountManager $mountManager,
-		ITagManager $tagManager,
-		IRequest $request,
-		IPreview $previewManager,
-		EventDispatcherInterface $eventDispatcher,
-		IL10N $l10n
-	) {
-		$this->config = $config;
-		$this->logger = $logger;
-		$this->databaseConnection = $databaseConnection;
-		$this->userSession = $userSession;
-		$this->mountManager = $mountManager;
-		$this->tagManager = $tagManager;
-		$this->request = $request;
-		$this->previewManager = $previewManager;
-		$this->eventDispatcher = $eventDispatcher;
-		$this->l10n = $l10n;
-	}
+    /**
+     * @param IConfig $config
+     * @param ILogger $logger
+     * @param IDBConnection $databaseConnection
+     * @param IUserSession $userSession
+     * @param IMountManager $mountManager
+     * @param ITagManager $tagManager
+     * @param IRequest $request
+     * @param IPreview $previewManager
+     */
+    public function __construct(
+        IConfig $config,
+        ILogger $logger,
+        IDBConnection $databaseConnection,
+        IUserSession $userSession,
+        IMountManager $mountManager,
+        ITagManager $tagManager,
+        IRequest $request,
+        IPreview $previewManager,
+        EventDispatcherInterface $eventDispatcher,
+        IL10N $l10n
+    ) {
+        $this->config = $config;
+        $this->logger = $logger;
+        $this->databaseConnection = $databaseConnection;
+        $this->userSession = $userSession;
+        $this->mountManager = $mountManager;
+        $this->tagManager = $tagManager;
+        $this->request = $request;
+        $this->previewManager = $previewManager;
+        $this->eventDispatcher = $eventDispatcher;
+        $this->l10n = $l10n;
+    }
 
-	/**
-	 * @param string $baseUri
-	 * @param string $requestUri
-	 * @param Plugin $authPlugin
-	 * @param callable $viewCallBack callback that should return the view for the dav endpoint
-	 * @return Server
-	 */
-	public function createServer($baseUri,
-								 $requestUri,
-								 Plugin $authPlugin,
-								 callable $viewCallBack) {
-		// Fire up server
-		$objectTree = new \OCA\DAV\Connector\Sabre\ObjectTree();
-		$server = new \OCA\DAV\Connector\Sabre\Server($objectTree);
-		// Set URL explicitly due to reverse-proxy situations
-		$server->httpRequest->setUrl($requestUri);
-		$server->setBaseUri($baseUri);
+    /**
+     * @param string $baseUri
+     * @param string $requestUri
+     * @param Plugin $authPlugin
+     * @param callable $viewCallBack callback that should return the view for the dav endpoint
+     * @return Server
+     */
+    public function createServer($baseUri,
+                                    $requestUri,
+                                    Plugin $authPlugin,
+                                    callable $viewCallBack) {
+        // Fire up server
+        $objectTree = new \OCA\DAV\Connector\Sabre\ObjectTree();
+        $server = new \OCA\DAV\Connector\Sabre\Server($objectTree);
+        // Set URL explicitly due to reverse-proxy situations
+        $server->httpRequest->setUrl($requestUri);
+        $server->setBaseUri($baseUri);
 
-		// Load plugins
-		$server->addPlugin(new \OCA\DAV\Connector\Sabre\MaintenancePlugin($this->config, $this->l10n));
-		$server->addPlugin(new \OCA\DAV\Connector\Sabre\BlockLegacyClientPlugin($this->config));
-		$server->addPlugin(new \OCA\DAV\Connector\Sabre\AnonymousOptionsPlugin());
-		$server->addPlugin($authPlugin);
-		// FIXME: The following line is a workaround for legacy components relying on being able to send a GET to /
-		$server->addPlugin(new \OCA\DAV\Connector\Sabre\DummyGetResponsePlugin());
-		$server->addPlugin(new \OCA\DAV\Connector\Sabre\ExceptionLoggerPlugin('webdav', $this->logger));
-		$server->addPlugin(new \OCA\DAV\Connector\Sabre\LockPlugin());
+        // Load plugins
+        $server->addPlugin(new \OCA\DAV\Connector\Sabre\MaintenancePlugin($this->config, $this->l10n));
+        $server->addPlugin(new \OCA\DAV\Connector\Sabre\BlockLegacyClientPlugin($this->config));
+        $server->addPlugin(new \OCA\DAV\Connector\Sabre\AnonymousOptionsPlugin());
+        $server->addPlugin($authPlugin);
+        // FIXME: The following line is a workaround for legacy components relying on being able to send a GET to /
+        $server->addPlugin(new \OCA\DAV\Connector\Sabre\DummyGetResponsePlugin());
+        $server->addPlugin(new \OCA\DAV\Connector\Sabre\ExceptionLoggerPlugin('webdav', $this->logger));
+        $server->addPlugin(new \OCA\DAV\Connector\Sabre\LockPlugin());
 
-		$server->addPlugin(new RequestIdHeaderPlugin(\OC::$server->get(IRequest::class)));
+        $server->addPlugin(new RequestIdHeaderPlugin(\OC::$server->get(IRequest::class)));
 
-		// Some WebDAV clients do require Class 2 WebDAV support (locking), since
-		// we do not provide locking we emulate it using a fake locking plugin.
-		if ($this->request->isUserAgent([
-			'/WebDAVFS/',
-			'/OneNote/',
-			'/Microsoft-WebDAV-MiniRedir/',
-		])) {
-			$server->addPlugin(new \OCA\DAV\Connector\Sabre\FakeLockerPlugin());
-		}
+        // Some WebDAV clients do require Class 2 WebDAV support (locking), since
+        // we do not provide locking we emulate it using a fake locking plugin.
+        if ($this->request->isUserAgent([
+            '/WebDAVFS/',
+            '/OneNote/',
+            '/Microsoft-WebDAV-MiniRedir/',
+        ])) {
+            $server->addPlugin(new \OCA\DAV\Connector\Sabre\FakeLockerPlugin());
+        }
 
-		if (BrowserErrorPagePlugin::isBrowserRequest($this->request)) {
-			$server->addPlugin(new BrowserErrorPagePlugin());
-		}
+        if (BrowserErrorPagePlugin::isBrowserRequest($this->request)) {
+            $server->addPlugin(new BrowserErrorPagePlugin());
+        }
 
-		// wait with registering these until auth is handled and the filesystem is setup
-		$server->on('beforeMethod:*', function () use ($server, $objectTree, $viewCallBack) {
-			// ensure the skeleton is copied
-			$userFolder = \OC::$server->getUserFolder();
+        // wait with registering these until auth is handled and the filesystem is setup
+        $server->on('beforeMethod:*', function () use ($server, $objectTree, $viewCallBack) {
+            // ensure the skeleton is copied
+            $userFolder = \OC::$server->getUserFolder();
 
-			/** @var \OC\Files\View $view */
-			$view = $viewCallBack($server);
-			if ($userFolder instanceof Folder && $userFolder->getPath() === $view->getRoot()) {
-				$rootInfo = $userFolder;
-			} else {
-				$rootInfo = $view->getFileInfo('');
-			}
+            /** @var \OC\Files\View $view */
+            $view = $viewCallBack($server);
+            if ($userFolder instanceof Folder && $userFolder->getPath() === $view->getRoot()) {
+                $rootInfo = $userFolder;
+            } else {
+                $rootInfo = $view->getFileInfo('');
+            }
 
-			// Create Nextcloud Dir
-			if ($rootInfo->getType() === 'dir') {
-				$root = new \OCA\DAV\Connector\Sabre\Directory($view, $rootInfo, $objectTree);
-			} else {
-				$root = new \OCA\DAV\Connector\Sabre\File($view, $rootInfo);
-			}
-			$objectTree->init($root, $view, $this->mountManager);
+            // Create Nextcloud Dir
+            if ($rootInfo->getType() === 'dir') {
+                $root = new \OCA\DAV\Connector\Sabre\Directory($view, $rootInfo, $objectTree);
+            } else {
+                $root = new \OCA\DAV\Connector\Sabre\File($view, $rootInfo);
+            }
+            $objectTree->init($root, $view, $this->mountManager);
 
-			$server->addPlugin(
-				new \OCA\DAV\Connector\Sabre\FilesPlugin(
-					$objectTree,
-					$this->config,
-					$this->request,
-					$this->previewManager,
-					$this->userSession,
-					false,
-					!$this->config->getSystemValue('debug', false)
-				)
-			);
-			$server->addPlugin(new \OCA\DAV\Connector\Sabre\QuotaPlugin($view, true));
-			$server->addPlugin(new \OCA\DAV\Connector\Sabre\ChecksumUpdatePlugin());
+            $server->addPlugin(
+                new \OCA\DAV\Connector\Sabre\FilesPlugin(
+                    $objectTree,
+                    $this->config,
+                    $this->request,
+                    $this->previewManager,
+                    $this->userSession,
+                    false,
+                    !$this->config->getSystemValue('debug', false)
+                )
+            );
+            $server->addPlugin(new \OCA\DAV\Connector\Sabre\QuotaPlugin($view, true));
+            $server->addPlugin(new \OCA\DAV\Connector\Sabre\ChecksumUpdatePlugin());
 
-			if ($this->userSession->isLoggedIn()) {
-				$server->addPlugin(new \OCA\DAV\Connector\Sabre\TagsPlugin($objectTree, $this->tagManager));
-				$server->addPlugin(new \OCA\DAV\Connector\Sabre\SharesPlugin(
-					$objectTree,
-					$this->userSession,
-					$userFolder,
-					\OC::$server->getShareManager()
-				));
-				$server->addPlugin(new \OCA\DAV\Connector\Sabre\CommentPropertiesPlugin(\OC::$server->getCommentsManager(), $this->userSession));
-				$server->addPlugin(new \OCA\DAV\Connector\Sabre\FilesReportPlugin(
-					$objectTree,
-					$view,
-					\OC::$server->getSystemTagManager(),
-					\OC::$server->getSystemTagObjectMapper(),
-					\OC::$server->getTagManager(),
-					$this->userSession,
-					\OC::$server->getGroupManager(),
-					$userFolder,
-					\OC::$server->getAppManager()
-				));
-				// custom properties plugin must be the last one
-				$server->addPlugin(
-					new \Sabre\DAV\PropertyStorage\Plugin(
-						new \OCA\DAV\DAV\CustomPropertiesBackend(
-							$objectTree,
-							$this->databaseConnection,
-							$this->userSession->getUser()
-						)
-					)
-				);
-			}
-			$server->addPlugin(new \OCA\DAV\Connector\Sabre\CopyEtagHeaderPlugin());
+            if ($this->userSession->isLoggedIn()) {
+                $server->addPlugin(new \OCA\DAV\Connector\Sabre\TagsPlugin($objectTree, $this->tagManager));
+                $server->addPlugin(new \OCA\DAV\Connector\Sabre\SharesPlugin(
+                    $objectTree,
+                    $this->userSession,
+                    $userFolder,
+                    \OC::$server->getShareManager()
+                ));
+                $server->addPlugin(new \OCA\DAV\Connector\Sabre\CommentPropertiesPlugin(\OC::$server->getCommentsManager(), $this->userSession));
+                $server->addPlugin(new \OCA\DAV\Connector\Sabre\FilesReportPlugin(
+                    $objectTree,
+                    $view,
+                    \OC::$server->getSystemTagManager(),
+                    \OC::$server->getSystemTagObjectMapper(),
+                    \OC::$server->getTagManager(),
+                    $this->userSession,
+                    \OC::$server->getGroupManager(),
+                    $userFolder,
+                    \OC::$server->getAppManager()
+                ));
+                // custom properties plugin must be the last one
+                $server->addPlugin(
+                    new \Sabre\DAV\PropertyStorage\Plugin(
+                        new \OCA\DAV\DAV\CustomPropertiesBackend(
+                            $objectTree,
+                            $this->databaseConnection,
+                            $this->userSession->getUser()
+                        )
+                    )
+                );
+            }
+            $server->addPlugin(new \OCA\DAV\Connector\Sabre\CopyEtagHeaderPlugin());
 
-			// Load dav plugins from apps
-			$event = new SabrePluginEvent($server);
-			$this->eventDispatcher->dispatch($event);
-			$pluginManager = new PluginManager(
-				\OC::$server,
-				\OC::$server->getAppManager()
-			);
-			foreach ($pluginManager->getAppPlugins() as $appPlugin) {
-				$server->addPlugin($appPlugin);
-			}
-		}, 30); // priority 30: after auth (10) and acl(20), before lock(50) and handling the request
-		return $server;
-	}
+            // Load dav plugins from apps
+            $event = new SabrePluginEvent($server);
+            $this->eventDispatcher->dispatch($event);
+            $pluginManager = new PluginManager(
+                \OC::$server,
+                \OC::$server->getAppManager()
+            );
+            foreach ($pluginManager->getAppPlugins() as $appPlugin) {
+                $server->addPlugin($appPlugin);
+            }
+        }, 30); // priority 30: after auth (10) and acl(20), before lock(50) and handling the request
+        return $server;
+    }
 }

apps/dav/lib/Server.php

Indentation +285 added lines, -285 removed lines

@@ -82,289 +82,289 @@
 use SearchDAV\DAV\SearchPlugin;
 
 class Server {
-	private IRequest $request;
-	private string $baseUri;
-	public Connector\Sabre\Server $server;
-	private IProfiler $profiler;
-
-	public function __construct(IRequest $request, string $baseUri) {
-		$this->profiler = \OC::$server->get(IProfiler::class);
-		if ($this->profiler->isEnabled()) {
-			/** @var IEventLogger $eventLogger */
-			$eventLogger = \OC::$server->get(IEventLogger::class);
-			$eventLogger->start('runtime', 'DAV Runtime');
-		}
-
-		$this->request = $request;
-		$this->baseUri = $baseUri;
-		$logger = \OC::$server->getLogger();
-		$dispatcher = \OC::$server->getEventDispatcher();
-		/** @var IEventDispatcher $newDispatcher */
-		$newDispatcher = \OC::$server->query(IEventDispatcher::class);
-
-		$root = new RootCollection();
-		$this->server = new \OCA\DAV\Connector\Sabre\Server(new CachingTree($root));
-
-		// Add maintenance plugin
-		$this->server->addPlugin(new \OCA\DAV\Connector\Sabre\MaintenancePlugin(\OC::$server->getConfig(), \OC::$server->getL10N('dav')));
-
-		// Backends
-		$authBackend = new Auth(
-			\OC::$server->getSession(),
-			\OC::$server->getUserSession(),
-			\OC::$server->getRequest(),
-			\OC::$server->getTwoFactorAuthManager(),
-			\OC::$server->getBruteForceThrottler()
-		);
-
-		// Set URL explicitly due to reverse-proxy situations
-		$this->server->httpRequest->setUrl($this->request->getRequestUri());
-		$this->server->setBaseUri($this->baseUri);
-
-		$this->server->addPlugin(new ProfilerPlugin($this->request));
-		$this->server->addPlugin(new BlockLegacyClientPlugin(\OC::$server->getConfig()));
-		$this->server->addPlugin(new AnonymousOptionsPlugin());
-		$authPlugin = new Plugin();
-		$authPlugin->addBackend(new PublicAuth());
-		$this->server->addPlugin($authPlugin);
-
-		// allow setup of additional auth backends
-		$event = new SabrePluginEvent($this->server);
-		$dispatcher->dispatch('OCA\DAV\Connector\Sabre::authInit', $event);
-
-		$newAuthEvent = new SabrePluginAuthInitEvent($this->server);
-		$newDispatcher->dispatchTyped($newAuthEvent);
-
-		$bearerAuthBackend = new BearerAuth(
-			\OC::$server->getUserSession(),
-			\OC::$server->getSession(),
-			\OC::$server->getRequest()
-		);
-		$authPlugin->addBackend($bearerAuthBackend);
-		// because we are throwing exceptions this plugin has to be the last one
-		$authPlugin->addBackend($authBackend);
-
-		// debugging
-		if (\OC::$server->getConfig()->getSystemValue('debug', false)) {
-			$this->server->addPlugin(new \Sabre\DAV\Browser\Plugin());
-		} else {
-			$this->server->addPlugin(new DummyGetResponsePlugin());
-		}
-
-		$this->server->addPlugin(new \OCA\DAV\Connector\Sabre\ExceptionLoggerPlugin('webdav', $logger));
-		$this->server->addPlugin(new \OCA\DAV\Connector\Sabre\LockPlugin());
-		$this->server->addPlugin(new \Sabre\DAV\Sync\Plugin());
-
-		// acl
-		$acl = new DavAclPlugin();
-		$acl->principalCollectionSet = [
-			'principals/users',
-			'principals/groups',
-			'principals/calendar-resources',
-			'principals/calendar-rooms',
-		];
-		$this->server->addPlugin($acl);
-
-		// calendar plugins
-		if ($this->requestIsForSubtree(['calendars', 'public-calendars', 'system-calendars', 'principals'])) {
-			$this->server->addPlugin(new \OCA\DAV\CalDAV\Plugin());
-			$this->server->addPlugin(new \OCA\DAV\CalDAV\ICSExportPlugin\ICSExportPlugin(\OC::$server->getConfig(), \OC::$server->getLogger()));
-			$this->server->addPlugin(new \OCA\DAV\CalDAV\Schedule\Plugin(\OC::$server->getConfig()));
-			if (\OC::$server->getConfig()->getAppValue('dav', 'sendInvitations', 'yes') === 'yes') {
-				$this->server->addPlugin(\OC::$server->query(\OCA\DAV\CalDAV\Schedule\IMipPlugin::class));
-			}
-
-			$this->server->addPlugin(\OC::$server->get(\OCA\DAV\CalDAV\Trashbin\Plugin::class));
-			$this->server->addPlugin(new \OCA\DAV\CalDAV\WebcalCaching\Plugin($request));
-			$this->server->addPlugin(new \Sabre\CalDAV\Subscriptions\Plugin());
-
-			$this->server->addPlugin(new \Sabre\CalDAV\Notifications\Plugin());
-			$this->server->addPlugin(new DAV\Sharing\Plugin($authBackend, \OC::$server->getRequest(), \OC::$server->getConfig()));
-			$this->server->addPlugin(new \OCA\DAV\CalDAV\Publishing\PublishPlugin(
-				\OC::$server->getConfig(),
-				\OC::$server->getURLGenerator()
-			));
-		}
-
-		// addressbook plugins
-		if ($this->requestIsForSubtree(['addressbooks', 'principals'])) {
-			$this->server->addPlugin(new DAV\Sharing\Plugin($authBackend, \OC::$server->getRequest(), \OC::$server->getConfig()));
-			$this->server->addPlugin(new \OCA\DAV\CardDAV\Plugin());
-			$this->server->addPlugin(new VCFExportPlugin());
-			$this->server->addPlugin(new MultiGetExportPlugin());
-			$this->server->addPlugin(new HasPhotoPlugin());
-			$this->server->addPlugin(new ImageExportPlugin(new PhotoCache(
-				\OC::$server->getAppDataDir('dav-photocache'),
-				\OC::$server->getLogger())
-			));
-		}
-
-		// system tags plugins
-		$this->server->addPlugin(new SystemTagPlugin(
-			\OC::$server->getSystemTagManager(),
-			\OC::$server->getGroupManager(),
-			\OC::$server->getUserSession()
-		));
-
-		// comments plugin
-		$this->server->addPlugin(new CommentsPlugin(
-			\OC::$server->getCommentsManager(),
-			\OC::$server->getUserSession()
-		));
-
-		$this->server->addPlugin(new CopyEtagHeaderPlugin());
-		$this->server->addPlugin(new RequestIdHeaderPlugin(\OC::$server->get(IRequest::class)));
-		$this->server->addPlugin(new ChunkingPlugin());
-
-		// allow setup of additional plugins
-		$dispatcher->dispatch('OCA\DAV\Connector\Sabre::addPlugin', $event);
-
-		// Some WebDAV clients do require Class 2 WebDAV support (locking), since
-		// we do not provide locking we emulate it using a fake locking plugin.
-		if ($request->isUserAgent([
-			'/WebDAVFS/',
-			'/OneNote/',
-			'/^Microsoft-WebDAV/',// Microsoft-WebDAV-MiniRedir/6.1.7601
-		])) {
-			$this->server->addPlugin(new FakeLockerPlugin());
-		}
-
-		if (BrowserErrorPagePlugin::isBrowserRequest($request)) {
-			$this->server->addPlugin(new BrowserErrorPagePlugin());
-		}
-
-		$lazySearchBackend = new LazySearchBackend();
-		$this->server->addPlugin(new SearchPlugin($lazySearchBackend));
-
-		// wait with registering these until auth is handled and the filesystem is setup
-		$this->server->on('beforeMethod:*', function () use ($root, $lazySearchBackend) {
-			// custom properties plugin must be the last one
-			$userSession = \OC::$server->getUserSession();
-			$user = $userSession->getUser();
-			if ($user !== null) {
-				$view = \OC\Files\Filesystem::getView();
-				$this->server->addPlugin(
-					new FilesPlugin(
-						$this->server->tree,
-						\OC::$server->getConfig(),
-						$this->request,
-						\OC::$server->getPreviewManager(),
-						\OC::$server->getUserSession(),
-						false,
-						!\OC::$server->getConfig()->getSystemValue('debug', false)
-					)
-				);
-				$this->server->addPlugin(new ChecksumUpdatePlugin());
-
-				$this->server->addPlugin(
-					new \Sabre\DAV\PropertyStorage\Plugin(
-						new CustomPropertiesBackend(
-							$this->server->tree,
-							\OC::$server->getDatabaseConnection(),
-							\OC::$server->getUserSession()->getUser()
-						)
-					)
-				);
-				if ($view !== null) {
-					$this->server->addPlugin(
-						new QuotaPlugin($view));
-				}
-				$this->server->addPlugin(
-					new TagsPlugin(
-						$this->server->tree, \OC::$server->getTagManager()
-					)
-				);
-				// TODO: switch to LazyUserFolder
-				$userFolder = \OC::$server->getUserFolder();
-				$this->server->addPlugin(new SharesPlugin(
-					$this->server->tree,
-					$userSession,
-					$userFolder,
-					\OC::$server->getShareManager()
-				));
-				$this->server->addPlugin(new CommentPropertiesPlugin(
-					\OC::$server->getCommentsManager(),
-					$userSession
-				));
-				$this->server->addPlugin(new \OCA\DAV\CalDAV\Search\SearchPlugin());
-				if ($view !== null) {
-					$this->server->addPlugin(new FilesReportPlugin(
-						$this->server->tree,
-						$view,
-						\OC::$server->getSystemTagManager(),
-						\OC::$server->getSystemTagObjectMapper(),
-						\OC::$server->getTagManager(),
-						$userSession,
-						\OC::$server->getGroupManager(),
-						$userFolder,
-						\OC::$server->getAppManager()
-					));
-					$lazySearchBackend->setBackend(new \OCA\DAV\Files\FileSearchBackend(
-						$this->server->tree,
-						$user,
-						\OC::$server->getRootFolder(),
-						\OC::$server->getShareManager(),
-						$view
-					));
-					$logger = \OC::$server->get(LoggerInterface::class);
-					$this->server->addPlugin(
-						new BulkUploadPlugin($userFolder, $logger)
-					);
-				}
-				$this->server->addPlugin(new \OCA\DAV\CalDAV\BirthdayCalendar\EnablePlugin(
-					\OC::$server->getConfig(),
-					\OC::$server->query(BirthdayService::class)
-				));
-				$this->server->addPlugin(new AppleProvisioningPlugin(
-					\OC::$server->getUserSession(),
-					\OC::$server->getURLGenerator(),
-					\OC::$server->getThemingDefaults(),
-					\OC::$server->getRequest(),
-					\OC::$server->getL10N('dav'),
-					function () {
-						return UUIDUtil::getUUID();
-					}
-				));
-			}
-
-			// register plugins from apps
-			$pluginManager = new PluginManager(
-				\OC::$server,
-				\OC::$server->getAppManager()
-			);
-			foreach ($pluginManager->getAppPlugins() as $appPlugin) {
-				$this->server->addPlugin($appPlugin);
-			}
-			foreach ($pluginManager->getAppCollections() as $appCollection) {
-				$root->addChild($appCollection);
-			}
-		});
-
-		$this->server->addPlugin(
-			new PropfindCompressionPlugin()
-		);
-	}
-
-	public function exec() {
-		/** @var IEventLogger $eventLogger */
-		$eventLogger = \OC::$server->get(IEventLogger::class);
-		$eventLogger->start('dav_server_exec', '');
-		$this->server->exec();
-		$eventLogger->end('dav_server_exec');
-		if ($this->profiler->isEnabled()) {
-			$eventLogger->end('runtime');
-			$profile = $this->profiler->collect(\OC::$server->get(IRequest::class), new Response());
-			$this->profiler->saveProfile($profile);
-		}
-	}
-
-	private function requestIsForSubtree(array $subTrees): bool {
-		foreach ($subTrees as $subTree) {
-			$subTree = trim($subTree, ' /');
-			if (strpos($this->server->getRequestUri(), $subTree.'/') === 0) {
-				return true;
-			}
-		}
-		return false;
-	}
+    private IRequest $request;
+    private string $baseUri;
+    public Connector\Sabre\Server $server;
+    private IProfiler $profiler;
+
+    public function __construct(IRequest $request, string $baseUri) {
+        $this->profiler = \OC::$server->get(IProfiler::class);
+        if ($this->profiler->isEnabled()) {
+            /** @var IEventLogger $eventLogger */
+            $eventLogger = \OC::$server->get(IEventLogger::class);
+            $eventLogger->start('runtime', 'DAV Runtime');
+        }
+
+        $this->request = $request;
+        $this->baseUri = $baseUri;
+        $logger = \OC::$server->getLogger();
+        $dispatcher = \OC::$server->getEventDispatcher();
+        /** @var IEventDispatcher $newDispatcher */
+        $newDispatcher = \OC::$server->query(IEventDispatcher::class);
+
+        $root = new RootCollection();
+        $this->server = new \OCA\DAV\Connector\Sabre\Server(new CachingTree($root));
+
+        // Add maintenance plugin
+        $this->server->addPlugin(new \OCA\DAV\Connector\Sabre\MaintenancePlugin(\OC::$server->getConfig(), \OC::$server->getL10N('dav')));
+
+        // Backends
+        $authBackend = new Auth(
+            \OC::$server->getSession(),
+            \OC::$server->getUserSession(),
+            \OC::$server->getRequest(),
+            \OC::$server->getTwoFactorAuthManager(),
+            \OC::$server->getBruteForceThrottler()
+        );
+
+        // Set URL explicitly due to reverse-proxy situations
+        $this->server->httpRequest->setUrl($this->request->getRequestUri());
+        $this->server->setBaseUri($this->baseUri);
+
+        $this->server->addPlugin(new ProfilerPlugin($this->request));
+        $this->server->addPlugin(new BlockLegacyClientPlugin(\OC::$server->getConfig()));
+        $this->server->addPlugin(new AnonymousOptionsPlugin());
+        $authPlugin = new Plugin();
+        $authPlugin->addBackend(new PublicAuth());
+        $this->server->addPlugin($authPlugin);
+
+        // allow setup of additional auth backends
+        $event = new SabrePluginEvent($this->server);
+        $dispatcher->dispatch('OCA\DAV\Connector\Sabre::authInit', $event);
+
+        $newAuthEvent = new SabrePluginAuthInitEvent($this->server);
+        $newDispatcher->dispatchTyped($newAuthEvent);
+
+        $bearerAuthBackend = new BearerAuth(
+            \OC::$server->getUserSession(),
+            \OC::$server->getSession(),
+            \OC::$server->getRequest()
+        );
+        $authPlugin->addBackend($bearerAuthBackend);
+        // because we are throwing exceptions this plugin has to be the last one
+        $authPlugin->addBackend($authBackend);
+
+        // debugging
+        if (\OC::$server->getConfig()->getSystemValue('debug', false)) {
+            $this->server->addPlugin(new \Sabre\DAV\Browser\Plugin());
+        } else {
+            $this->server->addPlugin(new DummyGetResponsePlugin());
+        }
+
+        $this->server->addPlugin(new \OCA\DAV\Connector\Sabre\ExceptionLoggerPlugin('webdav', $logger));
+        $this->server->addPlugin(new \OCA\DAV\Connector\Sabre\LockPlugin());
+        $this->server->addPlugin(new \Sabre\DAV\Sync\Plugin());
+
+        // acl
+        $acl = new DavAclPlugin();
+        $acl->principalCollectionSet = [
+            'principals/users',
+            'principals/groups',
+            'principals/calendar-resources',
+            'principals/calendar-rooms',
+        ];
+        $this->server->addPlugin($acl);
+
+        // calendar plugins
+        if ($this->requestIsForSubtree(['calendars', 'public-calendars', 'system-calendars', 'principals'])) {
+            $this->server->addPlugin(new \OCA\DAV\CalDAV\Plugin());
+            $this->server->addPlugin(new \OCA\DAV\CalDAV\ICSExportPlugin\ICSExportPlugin(\OC::$server->getConfig(), \OC::$server->getLogger()));
+            $this->server->addPlugin(new \OCA\DAV\CalDAV\Schedule\Plugin(\OC::$server->getConfig()));
+            if (\OC::$server->getConfig()->getAppValue('dav', 'sendInvitations', 'yes') === 'yes') {
+                $this->server->addPlugin(\OC::$server->query(\OCA\DAV\CalDAV\Schedule\IMipPlugin::class));
+            }
+
+            $this->server->addPlugin(\OC::$server->get(\OCA\DAV\CalDAV\Trashbin\Plugin::class));
+            $this->server->addPlugin(new \OCA\DAV\CalDAV\WebcalCaching\Plugin($request));
+            $this->server->addPlugin(new \Sabre\CalDAV\Subscriptions\Plugin());
+
+            $this->server->addPlugin(new \Sabre\CalDAV\Notifications\Plugin());
+            $this->server->addPlugin(new DAV\Sharing\Plugin($authBackend, \OC::$server->getRequest(), \OC::$server->getConfig()));
+            $this->server->addPlugin(new \OCA\DAV\CalDAV\Publishing\PublishPlugin(
+                \OC::$server->getConfig(),
+                \OC::$server->getURLGenerator()
+            ));
+        }
+
+        // addressbook plugins
+        if ($this->requestIsForSubtree(['addressbooks', 'principals'])) {
+            $this->server->addPlugin(new DAV\Sharing\Plugin($authBackend, \OC::$server->getRequest(), \OC::$server->getConfig()));
+            $this->server->addPlugin(new \OCA\DAV\CardDAV\Plugin());
+            $this->server->addPlugin(new VCFExportPlugin());
+            $this->server->addPlugin(new MultiGetExportPlugin());
+            $this->server->addPlugin(new HasPhotoPlugin());
+            $this->server->addPlugin(new ImageExportPlugin(new PhotoCache(
+                \OC::$server->getAppDataDir('dav-photocache'),
+                \OC::$server->getLogger())
+            ));
+        }
+
+        // system tags plugins
+        $this->server->addPlugin(new SystemTagPlugin(
+            \OC::$server->getSystemTagManager(),
+            \OC::$server->getGroupManager(),
+            \OC::$server->getUserSession()
+        ));
+
+        // comments plugin
+        $this->server->addPlugin(new CommentsPlugin(
+            \OC::$server->getCommentsManager(),
+            \OC::$server->getUserSession()
+        ));
+
+        $this->server->addPlugin(new CopyEtagHeaderPlugin());
+        $this->server->addPlugin(new RequestIdHeaderPlugin(\OC::$server->get(IRequest::class)));
+        $this->server->addPlugin(new ChunkingPlugin());
+
+        // allow setup of additional plugins
+        $dispatcher->dispatch('OCA\DAV\Connector\Sabre::addPlugin', $event);
+
+        // Some WebDAV clients do require Class 2 WebDAV support (locking), since
+        // we do not provide locking we emulate it using a fake locking plugin.
+        if ($request->isUserAgent([
+            '/WebDAVFS/',
+            '/OneNote/',
+            '/^Microsoft-WebDAV/',// Microsoft-WebDAV-MiniRedir/6.1.7601
+        ])) {
+            $this->server->addPlugin(new FakeLockerPlugin());
+        }
+
+        if (BrowserErrorPagePlugin::isBrowserRequest($request)) {
+            $this->server->addPlugin(new BrowserErrorPagePlugin());
+        }
+
+        $lazySearchBackend = new LazySearchBackend();
+        $this->server->addPlugin(new SearchPlugin($lazySearchBackend));
+
+        // wait with registering these until auth is handled and the filesystem is setup
+        $this->server->on('beforeMethod:*', function () use ($root, $lazySearchBackend) {
+            // custom properties plugin must be the last one
+            $userSession = \OC::$server->getUserSession();
+            $user = $userSession->getUser();
+            if ($user !== null) {
+                $view = \OC\Files\Filesystem::getView();
+                $this->server->addPlugin(
+                    new FilesPlugin(
+                        $this->server->tree,
+                        \OC::$server->getConfig(),
+                        $this->request,
+                        \OC::$server->getPreviewManager(),
+                        \OC::$server->getUserSession(),
+                        false,
+                        !\OC::$server->getConfig()->getSystemValue('debug', false)
+                    )
+                );
+                $this->server->addPlugin(new ChecksumUpdatePlugin());
+
+                $this->server->addPlugin(
+                    new \Sabre\DAV\PropertyStorage\Plugin(
+                        new CustomPropertiesBackend(
+                            $this->server->tree,
+                            \OC::$server->getDatabaseConnection(),
+                            \OC::$server->getUserSession()->getUser()
+                        )
+                    )
+                );
+                if ($view !== null) {
+                    $this->server->addPlugin(
+                        new QuotaPlugin($view));
+                }
+                $this->server->addPlugin(
+                    new TagsPlugin(
+                        $this->server->tree, \OC::$server->getTagManager()
+                    )
+                );
+                // TODO: switch to LazyUserFolder
+                $userFolder = \OC::$server->getUserFolder();
+                $this->server->addPlugin(new SharesPlugin(
+                    $this->server->tree,
+                    $userSession,
+                    $userFolder,
+                    \OC::$server->getShareManager()
+                ));
+                $this->server->addPlugin(new CommentPropertiesPlugin(
+                    \OC::$server->getCommentsManager(),
+                    $userSession
+                ));
+                $this->server->addPlugin(new \OCA\DAV\CalDAV\Search\SearchPlugin());
+                if ($view !== null) {
+                    $this->server->addPlugin(new FilesReportPlugin(
+                        $this->server->tree,
+                        $view,
+                        \OC::$server->getSystemTagManager(),
+                        \OC::$server->getSystemTagObjectMapper(),
+                        \OC::$server->getTagManager(),
+                        $userSession,
+                        \OC::$server->getGroupManager(),
+                        $userFolder,
+                        \OC::$server->getAppManager()
+                    ));
+                    $lazySearchBackend->setBackend(new \OCA\DAV\Files\FileSearchBackend(
+                        $this->server->tree,
+                        $user,
+                        \OC::$server->getRootFolder(),
+                        \OC::$server->getShareManager(),
+                        $view
+                    ));
+                    $logger = \OC::$server->get(LoggerInterface::class);
+                    $this->server->addPlugin(
+                        new BulkUploadPlugin($userFolder, $logger)
+                    );
+                }
+                $this->server->addPlugin(new \OCA\DAV\CalDAV\BirthdayCalendar\EnablePlugin(
+                    \OC::$server->getConfig(),
+                    \OC::$server->query(BirthdayService::class)
+                ));
+                $this->server->addPlugin(new AppleProvisioningPlugin(
+                    \OC::$server->getUserSession(),
+                    \OC::$server->getURLGenerator(),
+                    \OC::$server->getThemingDefaults(),
+                    \OC::$server->getRequest(),
+                    \OC::$server->getL10N('dav'),
+                    function () {
+                        return UUIDUtil::getUUID();
+                    }
+                ));
+            }
+
+            // register plugins from apps
+            $pluginManager = new PluginManager(
+                \OC::$server,
+                \OC::$server->getAppManager()
+            );
+            foreach ($pluginManager->getAppPlugins() as $appPlugin) {
+                $this->server->addPlugin($appPlugin);
+            }
+            foreach ($pluginManager->getAppCollections() as $appCollection) {
+                $root->addChild($appCollection);
+            }
+        });
+
+        $this->server->addPlugin(
+            new PropfindCompressionPlugin()
+        );
+    }
+
+    public function exec() {
+        /** @var IEventLogger $eventLogger */
+        $eventLogger = \OC::$server->get(IEventLogger::class);
+        $eventLogger->start('dav_server_exec', '');
+        $this->server->exec();
+        $eventLogger->end('dav_server_exec');
+        if ($this->profiler->isEnabled()) {
+            $eventLogger->end('runtime');
+            $profile = $this->profiler->collect(\OC::$server->get(IRequest::class), new Response());
+            $this->profiler->saveProfile($profile);
+        }
+    }
+
+    private function requestIsForSubtree(array $subTrees): bool {
+        foreach ($subTrees as $subTree) {
+            $subTree = trim($subTree, ' /');
+            if (strpos($this->server->getRequestUri(), $subTree.'/') === 0) {
+                return true;
+            }
+        }
+        return false;
+    }
 }

apps/dav/composer/composer/autoload_static.php

Spacing +305 added lines, -305 removed lines

@@ -6,324 +6,324 @@
 
 class ComposerStaticInitDAV
 {
-    public static $prefixLengthsPsr4 = array (
+    public static $prefixLengthsPsr4 = array(
         'O' => 
-        array (
+        array(
             'OCA\\DAV\\' => 8,
         ),
     );
 
-    public static $prefixDirsPsr4 = array (
+    public static $prefixDirsPsr4 = array(
         'OCA\\DAV\\' => 
-        array (
-            0 => __DIR__ . '/..' . '/../lib',
+        array(
+            0 => __DIR__.'/..'.'/../lib',
         ),
     );
 
-    public static $classMap = array (
-        'Composer\\InstalledVersions' => __DIR__ . '/..' . '/composer/InstalledVersions.php',
-        'OCA\\DAV\\AppInfo\\Application' => __DIR__ . '/..' . '/../lib/AppInfo/Application.php',
-        'OCA\\DAV\\AppInfo\\PluginManager' => __DIR__ . '/..' . '/../lib/AppInfo/PluginManager.php',
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+        'OCA\\DAV\\Migration\\Version1004Date20170924124212' => __DIR__.'/..'.'/../lib/Migration/Version1004Date20170924124212.php',
+        'OCA\\DAV\\Migration\\Version1004Date20170926103422' => __DIR__.'/..'.'/../lib/Migration/Version1004Date20170926103422.php',
+        'OCA\\DAV\\Migration\\Version1005Date20180413093149' => __DIR__.'/..'.'/../lib/Migration/Version1005Date20180413093149.php',
+        'OCA\\DAV\\Migration\\Version1005Date20180530124431' => __DIR__.'/..'.'/../lib/Migration/Version1005Date20180530124431.php',
+        'OCA\\DAV\\Migration\\Version1006Date20180619154313' => __DIR__.'/..'.'/../lib/Migration/Version1006Date20180619154313.php',
+        'OCA\\DAV\\Migration\\Version1006Date20180628111625' => __DIR__.'/..'.'/../lib/Migration/Version1006Date20180628111625.php',
+        'OCA\\DAV\\Migration\\Version1008Date20181030113700' => __DIR__.'/..'.'/../lib/Migration/Version1008Date20181030113700.php',
+        'OCA\\DAV\\Migration\\Version1008Date20181105104826' => __DIR__.'/..'.'/../lib/Migration/Version1008Date20181105104826.php',
+        'OCA\\DAV\\Migration\\Version1008Date20181105104833' => __DIR__.'/..'.'/../lib/Migration/Version1008Date20181105104833.php',
+        'OCA\\DAV\\Migration\\Version1008Date20181105110300' => __DIR__.'/..'.'/../lib/Migration/Version1008Date20181105110300.php',
+        'OCA\\DAV\\Migration\\Version1008Date20181105112049' => __DIR__.'/..'.'/../lib/Migration/Version1008Date20181105112049.php',
+        'OCA\\DAV\\Migration\\Version1008Date20181114084440' => __DIR__.'/..'.'/../lib/Migration/Version1008Date20181114084440.php',
+        'OCA\\DAV\\Migration\\Version1011Date20190725113607' => __DIR__.'/..'.'/../lib/Migration/Version1011Date20190725113607.php',
+        'OCA\\DAV\\Migration\\Version1011Date20190806104428' => __DIR__.'/..'.'/../lib/Migration/Version1011Date20190806104428.php',
+        'OCA\\DAV\\Migration\\Version1012Date20190808122342' => __DIR__.'/..'.'/../lib/Migration/Version1012Date20190808122342.php',
+        'OCA\\DAV\\Migration\\Version1016Date20201109085907' => __DIR__.'/..'.'/../lib/Migration/Version1016Date20201109085907.php',
+        'OCA\\DAV\\Migration\\Version1017Date20210216083742' => __DIR__.'/..'.'/../lib/Migration/Version1017Date20210216083742.php',
+        'OCA\\DAV\\Migration\\Version1018Date20210312100735' => __DIR__.'/..'.'/../lib/Migration/Version1018Date20210312100735.php',
+        'OCA\\DAV\\Profiler\\ProfilerPlugin' => __DIR__.'/..'.'/../lib/Profiler/ProfilerPlugin.php',
+        'OCA\\DAV\\Provisioning\\Apple\\AppleProvisioningNode' => __DIR__.'/..'.'/../lib/Provisioning/Apple/AppleProvisioningNode.php',
+        'OCA\\DAV\\Provisioning\\Apple\\AppleProvisioningPlugin' => __DIR__.'/..'.'/../lib/Provisioning/Apple/AppleProvisioningPlugin.php',
+        'OCA\\DAV\\RootCollection' => __DIR__.'/..'.'/../lib/RootCollection.php',
+        'OCA\\DAV\\Search\\ACalendarSearchProvider' => __DIR__.'/..'.'/../lib/Search/ACalendarSearchProvider.php',
+        'OCA\\DAV\\Search\\ContactsSearchProvider' => __DIR__.'/..'.'/../lib/Search/ContactsSearchProvider.php',
+        'OCA\\DAV\\Search\\EventsSearchProvider' => __DIR__.'/..'.'/../lib/Search/EventsSearchProvider.php',
+        'OCA\\DAV\\Search\\TasksSearchProvider' => __DIR__.'/..'.'/../lib/Search/TasksSearchProvider.php',
+        'OCA\\DAV\\Server' => __DIR__.'/..'.'/../lib/Server.php',
+        'OCA\\DAV\\Settings\\AvailabilitySettings' => __DIR__.'/..'.'/../lib/Settings/AvailabilitySettings.php',
+        'OCA\\DAV\\Settings\\CalDAVSettings' => __DIR__.'/..'.'/../lib/Settings/CalDAVSettings.php',
+        'OCA\\DAV\\Storage\\PublicOwnerWrapper' => __DIR__.'/..'.'/../lib/Storage/PublicOwnerWrapper.php',
+        'OCA\\DAV\\SystemTag\\SystemTagMappingNode' => __DIR__.'/..'.'/../lib/SystemTag/SystemTagMappingNode.php',
+        'OCA\\DAV\\SystemTag\\SystemTagNode' => __DIR__.'/..'.'/../lib/SystemTag/SystemTagNode.php',
+        'OCA\\DAV\\SystemTag\\SystemTagPlugin' => __DIR__.'/..'.'/../lib/SystemTag/SystemTagPlugin.php',
+        'OCA\\DAV\\SystemTag\\SystemTagsByIdCollection' => __DIR__.'/..'.'/../lib/SystemTag/SystemTagsByIdCollection.php',
+        'OCA\\DAV\\SystemTag\\SystemTagsObjectMappingCollection' => __DIR__.'/..'.'/../lib/SystemTag/SystemTagsObjectMappingCollection.php',
+        'OCA\\DAV\\SystemTag\\SystemTagsObjectTypeCollection' => __DIR__.'/..'.'/../lib/SystemTag/SystemTagsObjectTypeCollection.php',
+        'OCA\\DAV\\SystemTag\\SystemTagsRelationsCollection' => __DIR__.'/..'.'/../lib/SystemTag/SystemTagsRelationsCollection.php',
+        'OCA\\DAV\\Traits\\PrincipalProxyTrait' => __DIR__.'/..'.'/../lib/Traits/PrincipalProxyTrait.php',
+        'OCA\\DAV\\Upload\\AssemblyStream' => __DIR__.'/..'.'/../lib/Upload/AssemblyStream.php',
+        'OCA\\DAV\\Upload\\ChunkingPlugin' => __DIR__.'/..'.'/../lib/Upload/ChunkingPlugin.php',
+        'OCA\\DAV\\Upload\\CleanupService' => __DIR__.'/..'.'/../lib/Upload/CleanupService.php',
+        'OCA\\DAV\\Upload\\FutureFile' => __DIR__.'/..'.'/../lib/Upload/FutureFile.php',
+        'OCA\\DAV\\Upload\\RootCollection' => __DIR__.'/..'.'/../lib/Upload/RootCollection.php',
+        'OCA\\DAV\\Upload\\UploadFile' => __DIR__.'/..'.'/../lib/Upload/UploadFile.php',
+        'OCA\\DAV\\Upload\\UploadFolder' => __DIR__.'/..'.'/../lib/Upload/UploadFolder.php',
+        'OCA\\DAV\\Upload\\UploadHome' => __DIR__.'/..'.'/../lib/Upload/UploadHome.php',
+        'OCA\\DAV\\UserMigration\\CalendarMigrator' => __DIR__.'/..'.'/../lib/UserMigration/CalendarMigrator.php',
+        'OCA\\DAV\\UserMigration\\CalendarMigratorException' => __DIR__.'/..'.'/../lib/UserMigration/CalendarMigratorException.php',
+        'OCA\\DAV\\UserMigration\\InvalidCalendarException' => __DIR__.'/..'.'/../lib/UserMigration/InvalidCalendarException.php',
     );
 
     public static function getInitializer(ClassLoader $loader)
     {
-        return \Closure::bind(function () use ($loader) {
+        return \Closure::bind(function() use ($loader) {
             $loader->prefixLengthsPsr4 = ComposerStaticInitDAV::$prefixLengthsPsr4;
             $loader->prefixDirsPsr4 = ComposerStaticInitDAV::$prefixDirsPsr4;
             $loader->classMap = ComposerStaticInitDAV::$classMap;

apps/dav/composer/composer/autoload_classmap.php

Spacing +298 added lines, -298 removed lines

@@ -6,302 +6,302 @@
 $baseDir = $vendorDir;
 
 return array(
-    'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',
-    'OCA\\DAV\\AppInfo\\Application' => $baseDir . '/../lib/AppInfo/Application.php',
-    'OCA\\DAV\\AppInfo\\PluginManager' => $baseDir . '/../lib/AppInfo/PluginManager.php',
-    'OCA\\DAV\\Avatars\\AvatarHome' => $baseDir . '/../lib/Avatars/AvatarHome.php',
-    'OCA\\DAV\\Avatars\\AvatarNode' => $baseDir . '/../lib/Avatars/AvatarNode.php',
-    'OCA\\DAV\\Avatars\\RootCollection' => $baseDir . '/../lib/Avatars/RootCollection.php',
-    'OCA\\DAV\\BackgroundJob\\BuildReminderIndexBackgroundJob' => $baseDir . '/../lib/BackgroundJob/BuildReminderIndexBackgroundJob.php',
-    'OCA\\DAV\\BackgroundJob\\CalendarRetentionJob' => $baseDir . '/../lib/BackgroundJob/CalendarRetentionJob.php',
-    'OCA\\DAV\\BackgroundJob\\CleanupDirectLinksJob' => $baseDir . '/../lib/BackgroundJob/CleanupDirectLinksJob.php',
-    'OCA\\DAV\\BackgroundJob\\CleanupInvitationTokenJob' => $baseDir . '/../lib/BackgroundJob/CleanupInvitationTokenJob.php',
-    'OCA\\DAV\\BackgroundJob\\EventReminderJob' => $baseDir . '/../lib/BackgroundJob/EventReminderJob.php',
-    'OCA\\DAV\\BackgroundJob\\GenerateBirthdayCalendarBackgroundJob' => $baseDir . '/../lib/BackgroundJob/GenerateBirthdayCalendarBackgroundJob.php',
-    'OCA\\DAV\\BackgroundJob\\RefreshWebcalJob' => $baseDir . '/../lib/BackgroundJob/RefreshWebcalJob.php',
-    'OCA\\DAV\\BackgroundJob\\RegisterRegenerateBirthdayCalendars' => $baseDir . '/../lib/BackgroundJob/RegisterRegenerateBirthdayCalendars.php',
-    'OCA\\DAV\\BackgroundJob\\UpdateCalendarResourcesRoomsBackgroundJob' => $baseDir . '/../lib/BackgroundJob/UpdateCalendarResourcesRoomsBackgroundJob.php',
-    'OCA\\DAV\\BackgroundJob\\UploadCleanup' => $baseDir . '/../lib/BackgroundJob/UploadCleanup.php',
-    'OCA\\DAV\\BulkUpload\\BulkUploadPlugin' => $baseDir . '/../lib/BulkUpload/BulkUploadPlugin.php',
-    'OCA\\DAV\\BulkUpload\\MultipartRequestParser' => $baseDir . '/../lib/BulkUpload/MultipartRequestParser.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Backend' => $baseDir . '/../lib/CalDAV/Activity/Backend.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Filter\\Calendar' => $baseDir . '/../lib/CalDAV/Activity/Filter/Calendar.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Filter\\Todo' => $baseDir . '/../lib/CalDAV/Activity/Filter/Todo.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Provider\\Base' => $baseDir . '/../lib/CalDAV/Activity/Provider/Base.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Provider\\Calendar' => $baseDir . '/../lib/CalDAV/Activity/Provider/Calendar.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Provider\\Event' => $baseDir . '/../lib/CalDAV/Activity/Provider/Event.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Provider\\Todo' => $baseDir . '/../lib/CalDAV/Activity/Provider/Todo.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Setting\\CalDAVSetting' => $baseDir . '/../lib/CalDAV/Activity/Setting/CalDAVSetting.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Setting\\Calendar' => $baseDir . '/../lib/CalDAV/Activity/Setting/Calendar.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Setting\\Event' => $baseDir . '/../lib/CalDAV/Activity/Setting/Event.php',
-    'OCA\\DAV\\CalDAV\\Activity\\Setting\\Todo' => $baseDir . '/../lib/CalDAV/Activity/Setting/Todo.php',
-    'OCA\\DAV\\CalDAV\\Auth\\CustomPrincipalPlugin' => $baseDir . '/../lib/CalDAV/Auth/CustomPrincipalPlugin.php',
-    'OCA\\DAV\\CalDAV\\Auth\\PublicPrincipalPlugin' => $baseDir . '/../lib/CalDAV/Auth/PublicPrincipalPlugin.php',
-    'OCA\\DAV\\CalDAV\\BirthdayCalendar\\EnablePlugin' => $baseDir . '/../lib/CalDAV/BirthdayCalendar/EnablePlugin.php',
-    'OCA\\DAV\\CalDAV\\BirthdayService' => $baseDir . '/../lib/CalDAV/BirthdayService.php',
-    'OCA\\DAV\\CalDAV\\CachedSubscription' => $baseDir . '/../lib/CalDAV/CachedSubscription.php',
-    'OCA\\DAV\\CalDAV\\CachedSubscriptionObject' => $baseDir . '/../lib/CalDAV/CachedSubscriptionObject.php',
-    'OCA\\DAV\\CalDAV\\CalDavBackend' => $baseDir . '/../lib/CalDAV/CalDavBackend.php',
-    'OCA\\DAV\\CalDAV\\Calendar' => $baseDir . '/../lib/CalDAV/Calendar.php',
-    'OCA\\DAV\\CalDAV\\CalendarHome' => $baseDir . '/../lib/CalDAV/CalendarHome.php',
-    'OCA\\DAV\\CalDAV\\CalendarImpl' => $baseDir . '/../lib/CalDAV/CalendarImpl.php',
-    'OCA\\DAV\\CalDAV\\CalendarManager' => $baseDir . '/../lib/CalDAV/CalendarManager.php',
-    'OCA\\DAV\\CalDAV\\CalendarObject' => $baseDir . '/../lib/CalDAV/CalendarObject.php',
-    'OCA\\DAV\\CalDAV\\CalendarProvider' => $baseDir . '/../lib/CalDAV/CalendarProvider.php',
-    'OCA\\DAV\\CalDAV\\CalendarRoot' => $baseDir . '/../lib/CalDAV/CalendarRoot.php',
-    'OCA\\DAV\\CalDAV\\ICSExportPlugin\\ICSExportPlugin' => $baseDir . '/../lib/CalDAV/ICSExportPlugin/ICSExportPlugin.php',
-    'OCA\\DAV\\CalDAV\\IRestorable' => $baseDir . '/../lib/CalDAV/IRestorable.php',
-    'OCA\\DAV\\CalDAV\\Integration\\ExternalCalendar' => $baseDir . '/../lib/CalDAV/Integration/ExternalCalendar.php',
-    'OCA\\DAV\\CalDAV\\Integration\\ICalendarProvider' => $baseDir . '/../lib/CalDAV/Integration/ICalendarProvider.php',
-    'OCA\\DAV\\CalDAV\\InvitationResponse\\InvitationResponseServer' => $baseDir . '/../lib/CalDAV/InvitationResponse/InvitationResponseServer.php',
-    'OCA\\DAV\\CalDAV\\Outbox' => $baseDir . '/../lib/CalDAV/Outbox.php',
-    'OCA\\DAV\\CalDAV\\Plugin' => $baseDir . '/../lib/CalDAV/Plugin.php',
-    'OCA\\DAV\\CalDAV\\Principal\\Collection' => $baseDir . '/../lib/CalDAV/Principal/Collection.php',
-    'OCA\\DAV\\CalDAV\\Principal\\User' => $baseDir . '/../lib/CalDAV/Principal/User.php',
-    'OCA\\DAV\\CalDAV\\Proxy\\Proxy' => $baseDir . '/../lib/CalDAV/Proxy/Proxy.php',
-    'OCA\\DAV\\CalDAV\\Proxy\\ProxyMapper' => $baseDir . '/../lib/CalDAV/Proxy/ProxyMapper.php',
-    'OCA\\DAV\\CalDAV\\PublicCalendar' => $baseDir . '/../lib/CalDAV/PublicCalendar.php',
-    'OCA\\DAV\\CalDAV\\PublicCalendarObject' => $baseDir . '/../lib/CalDAV/PublicCalendarObject.php',
-    'OCA\\DAV\\CalDAV\\PublicCalendarRoot' => $baseDir . '/../lib/CalDAV/PublicCalendarRoot.php',
-    'OCA\\DAV\\CalDAV\\Publishing\\PublishPlugin' => $baseDir . '/../lib/CalDAV/Publishing/PublishPlugin.php',
-    'OCA\\DAV\\CalDAV\\Publishing\\Xml\\Publisher' => $baseDir . '/../lib/CalDAV/Publishing/Xml/Publisher.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\Backend' => $baseDir . '/../lib/CalDAV/Reminder/Backend.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\INotificationProvider' => $baseDir . '/../lib/CalDAV/Reminder/INotificationProvider.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\NotificationProviderManager' => $baseDir . '/../lib/CalDAV/Reminder/NotificationProviderManager.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\NotificationProvider\\AbstractProvider' => $baseDir . '/../lib/CalDAV/Reminder/NotificationProvider/AbstractProvider.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\NotificationProvider\\AudioProvider' => $baseDir . '/../lib/CalDAV/Reminder/NotificationProvider/AudioProvider.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\NotificationProvider\\EmailProvider' => $baseDir . '/../lib/CalDAV/Reminder/NotificationProvider/EmailProvider.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\NotificationProvider\\ProviderNotAvailableException' => $baseDir . '/../lib/CalDAV/Reminder/NotificationProvider/ProviderNotAvailableException.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\NotificationProvider\\PushProvider' => $baseDir . '/../lib/CalDAV/Reminder/NotificationProvider/PushProvider.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\NotificationTypeDoesNotExistException' => $baseDir . '/../lib/CalDAV/Reminder/NotificationTypeDoesNotExistException.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\Notifier' => $baseDir . '/../lib/CalDAV/Reminder/Notifier.php',
-    'OCA\\DAV\\CalDAV\\Reminder\\ReminderService' => $baseDir . '/../lib/CalDAV/Reminder/ReminderService.php',
-    'OCA\\DAV\\CalDAV\\ResourceBooking\\AbstractPrincipalBackend' => $baseDir . '/../lib/CalDAV/ResourceBooking/AbstractPrincipalBackend.php',
-    'OCA\\DAV\\CalDAV\\ResourceBooking\\ResourcePrincipalBackend' => $baseDir . '/../lib/CalDAV/ResourceBooking/ResourcePrincipalBackend.php',
-    'OCA\\DAV\\CalDAV\\ResourceBooking\\RoomPrincipalBackend' => $baseDir . '/../lib/CalDAV/ResourceBooking/RoomPrincipalBackend.php',
-    'OCA\\DAV\\CalDAV\\RetentionService' => $baseDir . '/../lib/CalDAV/RetentionService.php',
-    'OCA\\DAV\\CalDAV\\Schedule\\IMipPlugin' => $baseDir . '/../lib/CalDAV/Schedule/IMipPlugin.php',
-    'OCA\\DAV\\CalDAV\\Schedule\\Plugin' => $baseDir . '/../lib/CalDAV/Schedule/Plugin.php',
-    'OCA\\DAV\\CalDAV\\Search\\SearchPlugin' => $baseDir . '/../lib/CalDAV/Search/SearchPlugin.php',
-    'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\CompFilter' => $baseDir . '/../lib/CalDAV/Search/Xml/Filter/CompFilter.php',
-    'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\LimitFilter' => $baseDir . '/../lib/CalDAV/Search/Xml/Filter/LimitFilter.php',
-    'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\OffsetFilter' => $baseDir . '/../lib/CalDAV/Search/Xml/Filter/OffsetFilter.php',
-    'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\ParamFilter' => $baseDir . '/../lib/CalDAV/Search/Xml/Filter/ParamFilter.php',
-    'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\PropFilter' => $baseDir . '/../lib/CalDAV/Search/Xml/Filter/PropFilter.php',
-    'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\SearchTermFilter' => $baseDir . '/../lib/CalDAV/Search/Xml/Filter/SearchTermFilter.php',
-    'OCA\\DAV\\CalDAV\\Search\\Xml\\Request\\CalendarSearchReport' => $baseDir . '/../lib/CalDAV/Search/Xml/Request/CalendarSearchReport.php',
-    'OCA\\DAV\\CalDAV\\Trashbin\\DeletedCalendarObject' => $baseDir . '/../lib/CalDAV/Trashbin/DeletedCalendarObject.php',
-    'OCA\\DAV\\CalDAV\\Trashbin\\DeletedCalendarObjectsCollection' => $baseDir . '/../lib/CalDAV/Trashbin/DeletedCalendarObjectsCollection.php',
-    'OCA\\DAV\\CalDAV\\Trashbin\\Plugin' => $baseDir . '/../lib/CalDAV/Trashbin/Plugin.php',
-    'OCA\\DAV\\CalDAV\\Trashbin\\RestoreTarget' => $baseDir . '/../lib/CalDAV/Trashbin/RestoreTarget.php',
-    'OCA\\DAV\\CalDAV\\Trashbin\\TrashbinHome' => $baseDir . '/../lib/CalDAV/Trashbin/TrashbinHome.php',
-    'OCA\\DAV\\CalDAV\\WebcalCaching\\Plugin' => $baseDir . '/../lib/CalDAV/WebcalCaching/Plugin.php',
-    'OCA\\DAV\\CalDAV\\WebcalCaching\\RefreshWebcalService' => $baseDir . '/../lib/CalDAV/WebcalCaching/RefreshWebcalService.php',
-    'OCA\\DAV\\Capabilities' => $baseDir . '/../lib/Capabilities.php',
-    'OCA\\DAV\\CardDAV\\Activity\\Backend' => $baseDir . '/../lib/CardDAV/Activity/Backend.php',
-    'OCA\\DAV\\CardDAV\\Activity\\Filter' => $baseDir . '/../lib/CardDAV/Activity/Filter.php',
-    'OCA\\DAV\\CardDAV\\Activity\\Provider\\Addressbook' => $baseDir . '/../lib/CardDAV/Activity/Provider/Addressbook.php',
-    'OCA\\DAV\\CardDAV\\Activity\\Provider\\Base' => $baseDir . '/../lib/CardDAV/Activity/Provider/Base.php',
-    'OCA\\DAV\\CardDAV\\Activity\\Provider\\Card' => $baseDir . '/../lib/CardDAV/Activity/Provider/Card.php',
-    'OCA\\DAV\\CardDAV\\Activity\\Setting' => $baseDir . '/../lib/CardDAV/Activity/Setting.php',
-    'OCA\\DAV\\CardDAV\\AddressBook' => $baseDir . '/../lib/CardDAV/AddressBook.php',
-    'OCA\\DAV\\CardDAV\\AddressBookImpl' => $baseDir . '/../lib/CardDAV/AddressBookImpl.php',
-    'OCA\\DAV\\CardDAV\\AddressBookRoot' => $baseDir . '/../lib/CardDAV/AddressBookRoot.php',
-    'OCA\\DAV\\CardDAV\\CardDavBackend' => $baseDir . '/../lib/CardDAV/CardDavBackend.php',
-    'OCA\\DAV\\CardDAV\\ContactsManager' => $baseDir . '/../lib/CardDAV/ContactsManager.php',
-    'OCA\\DAV\\CardDAV\\Converter' => $baseDir . '/../lib/CardDAV/Converter.php',
-    'OCA\\DAV\\CardDAV\\HasPhotoPlugin' => $baseDir . '/../lib/CardDAV/HasPhotoPlugin.php',
-    'OCA\\DAV\\CardDAV\\ImageExportPlugin' => $baseDir . '/../lib/CardDAV/ImageExportPlugin.php',
-    'OCA\\DAV\\CardDAV\\Integration\\ExternalAddressBook' => $baseDir . '/../lib/CardDAV/Integration/ExternalAddressBook.php',
-    'OCA\\DAV\\CardDAV\\Integration\\IAddressBookProvider' => $baseDir . '/../lib/CardDAV/Integration/IAddressBookProvider.php',
-    'OCA\\DAV\\CardDAV\\MultiGetExportPlugin' => $baseDir . '/../lib/CardDAV/MultiGetExportPlugin.php',
-    'OCA\\DAV\\CardDAV\\PhotoCache' => $baseDir . '/../lib/CardDAV/PhotoCache.php',
-    'OCA\\DAV\\CardDAV\\Plugin' => $baseDir . '/../lib/CardDAV/Plugin.php',
-    'OCA\\DAV\\CardDAV\\SyncService' => $baseDir . '/../lib/CardDAV/SyncService.php',
-    'OCA\\DAV\\CardDAV\\SystemAddressbook' => $baseDir . '/../lib/CardDAV/SystemAddressbook.php',
-    'OCA\\DAV\\CardDAV\\UserAddressBooks' => $baseDir . '/../lib/CardDAV/UserAddressBooks.php',
-    'OCA\\DAV\\CardDAV\\Xml\\Groups' => $baseDir . '/../lib/CardDAV/Xml/Groups.php',
-    'OCA\\DAV\\Command\\CreateAddressBook' => $baseDir . '/../lib/Command/CreateAddressBook.php',
-    'OCA\\DAV\\Command\\CreateCalendar' => $baseDir . '/../lib/Command/CreateCalendar.php',
-    'OCA\\DAV\\Command\\DeleteCalendar' => $baseDir . '/../lib/Command/DeleteCalendar.php',
-    'OCA\\DAV\\Command\\ListCalendars' => $baseDir . '/../lib/Command/ListCalendars.php',
-    'OCA\\DAV\\Command\\MoveCalendar' => $baseDir . '/../lib/Command/MoveCalendar.php',
-    'OCA\\DAV\\Command\\RemoveInvalidShares' => $baseDir . '/../lib/Command/RemoveInvalidShares.php',
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-    'OCA\\DAV\\Command\\SendEventReminders' => $baseDir . '/../lib/Command/SendEventReminders.php',
-    'OCA\\DAV\\Command\\SyncBirthdayCalendar' => $baseDir . '/../lib/Command/SyncBirthdayCalendar.php',
-    'OCA\\DAV\\Command\\SyncSystemAddressBook' => $baseDir . '/../lib/Command/SyncSystemAddressBook.php',
-    'OCA\\DAV\\Comments\\CommentNode' => $baseDir . '/../lib/Comments/CommentNode.php',
-    'OCA\\DAV\\Comments\\CommentsPlugin' => $baseDir . '/../lib/Comments/CommentsPlugin.php',
-    'OCA\\DAV\\Comments\\EntityCollection' => $baseDir . '/../lib/Comments/EntityCollection.php',
-    'OCA\\DAV\\Comments\\EntityTypeCollection' => $baseDir . '/../lib/Comments/EntityTypeCollection.php',
-    'OCA\\DAV\\Comments\\RootCollection' => $baseDir . '/../lib/Comments/RootCollection.php',
-    'OCA\\DAV\\Connector\\LegacyDAVACL' => $baseDir . '/../lib/Connector/LegacyDAVACL.php',
-    'OCA\\DAV\\Connector\\PublicAuth' => $baseDir . '/../lib/Connector/PublicAuth.php',
-    'OCA\\DAV\\Connector\\Sabre\\AnonymousOptionsPlugin' => $baseDir . '/../lib/Connector/Sabre/AnonymousOptionsPlugin.php',
-    'OCA\\DAV\\Connector\\Sabre\\AppEnabledPlugin' => $baseDir . '/../lib/Connector/Sabre/AppEnabledPlugin.php',
-    'OCA\\DAV\\Connector\\Sabre\\Auth' => $baseDir . '/../lib/Connector/Sabre/Auth.php',
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+    'OCA\\DAV\\Migration\\RegisterBuildReminderIndexBackgroundJob' => $baseDir.'/../lib/Migration/RegisterBuildReminderIndexBackgroundJob.php',
+    'OCA\\DAV\\Migration\\RemoveClassifiedEventActivity' => $baseDir.'/../lib/Migration/RemoveClassifiedEventActivity.php',
+    'OCA\\DAV\\Migration\\RemoveDeletedUsersCalendarSubscriptions' => $baseDir.'/../lib/Migration/RemoveDeletedUsersCalendarSubscriptions.php',
+    'OCA\\DAV\\Migration\\RemoveOrphanEventsAndContacts' => $baseDir.'/../lib/Migration/RemoveOrphanEventsAndContacts.php',
+    'OCA\\DAV\\Migration\\Version1004Date20170825134824' => $baseDir.'/../lib/Migration/Version1004Date20170825134824.php',
+    'OCA\\DAV\\Migration\\Version1004Date20170919104507' => $baseDir.'/../lib/Migration/Version1004Date20170919104507.php',
+    'OCA\\DAV\\Migration\\Version1004Date20170924124212' => $baseDir.'/../lib/Migration/Version1004Date20170924124212.php',
+    'OCA\\DAV\\Migration\\Version1004Date20170926103422' => $baseDir.'/../lib/Migration/Version1004Date20170926103422.php',
+    'OCA\\DAV\\Migration\\Version1005Date20180413093149' => $baseDir.'/../lib/Migration/Version1005Date20180413093149.php',
+    'OCA\\DAV\\Migration\\Version1005Date20180530124431' => $baseDir.'/../lib/Migration/Version1005Date20180530124431.php',
+    'OCA\\DAV\\Migration\\Version1006Date20180619154313' => $baseDir.'/../lib/Migration/Version1006Date20180619154313.php',
+    'OCA\\DAV\\Migration\\Version1006Date20180628111625' => $baseDir.'/../lib/Migration/Version1006Date20180628111625.php',
+    'OCA\\DAV\\Migration\\Version1008Date20181030113700' => $baseDir.'/../lib/Migration/Version1008Date20181030113700.php',
+    'OCA\\DAV\\Migration\\Version1008Date20181105104826' => $baseDir.'/../lib/Migration/Version1008Date20181105104826.php',
+    'OCA\\DAV\\Migration\\Version1008Date20181105104833' => $baseDir.'/../lib/Migration/Version1008Date20181105104833.php',
+    'OCA\\DAV\\Migration\\Version1008Date20181105110300' => $baseDir.'/../lib/Migration/Version1008Date20181105110300.php',
+    'OCA\\DAV\\Migration\\Version1008Date20181105112049' => $baseDir.'/../lib/Migration/Version1008Date20181105112049.php',
+    'OCA\\DAV\\Migration\\Version1008Date20181114084440' => $baseDir.'/../lib/Migration/Version1008Date20181114084440.php',
+    'OCA\\DAV\\Migration\\Version1011Date20190725113607' => $baseDir.'/../lib/Migration/Version1011Date20190725113607.php',
+    'OCA\\DAV\\Migration\\Version1011Date20190806104428' => $baseDir.'/../lib/Migration/Version1011Date20190806104428.php',
+    'OCA\\DAV\\Migration\\Version1012Date20190808122342' => $baseDir.'/../lib/Migration/Version1012Date20190808122342.php',
+    'OCA\\DAV\\Migration\\Version1016Date20201109085907' => $baseDir.'/../lib/Migration/Version1016Date20201109085907.php',
+    'OCA\\DAV\\Migration\\Version1017Date20210216083742' => $baseDir.'/../lib/Migration/Version1017Date20210216083742.php',
+    'OCA\\DAV\\Migration\\Version1018Date20210312100735' => $baseDir.'/../lib/Migration/Version1018Date20210312100735.php',
+    'OCA\\DAV\\Profiler\\ProfilerPlugin' => $baseDir.'/../lib/Profiler/ProfilerPlugin.php',
+    'OCA\\DAV\\Provisioning\\Apple\\AppleProvisioningNode' => $baseDir.'/../lib/Provisioning/Apple/AppleProvisioningNode.php',
+    'OCA\\DAV\\Provisioning\\Apple\\AppleProvisioningPlugin' => $baseDir.'/../lib/Provisioning/Apple/AppleProvisioningPlugin.php',
+    'OCA\\DAV\\RootCollection' => $baseDir.'/../lib/RootCollection.php',
+    'OCA\\DAV\\Search\\ACalendarSearchProvider' => $baseDir.'/../lib/Search/ACalendarSearchProvider.php',
+    'OCA\\DAV\\Search\\ContactsSearchProvider' => $baseDir.'/../lib/Search/ContactsSearchProvider.php',
+    'OCA\\DAV\\Search\\EventsSearchProvider' => $baseDir.'/../lib/Search/EventsSearchProvider.php',
+    'OCA\\DAV\\Search\\TasksSearchProvider' => $baseDir.'/../lib/Search/TasksSearchProvider.php',
+    'OCA\\DAV\\Server' => $baseDir.'/../lib/Server.php',
+    'OCA\\DAV\\Settings\\AvailabilitySettings' => $baseDir.'/../lib/Settings/AvailabilitySettings.php',
+    'OCA\\DAV\\Settings\\CalDAVSettings' => $baseDir.'/../lib/Settings/CalDAVSettings.php',
+    'OCA\\DAV\\Storage\\PublicOwnerWrapper' => $baseDir.'/../lib/Storage/PublicOwnerWrapper.php',
+    'OCA\\DAV\\SystemTag\\SystemTagMappingNode' => $baseDir.'/../lib/SystemTag/SystemTagMappingNode.php',
+    'OCA\\DAV\\SystemTag\\SystemTagNode' => $baseDir.'/../lib/SystemTag/SystemTagNode.php',
+    'OCA\\DAV\\SystemTag\\SystemTagPlugin' => $baseDir.'/../lib/SystemTag/SystemTagPlugin.php',
+    'OCA\\DAV\\SystemTag\\SystemTagsByIdCollection' => $baseDir.'/../lib/SystemTag/SystemTagsByIdCollection.php',
+    'OCA\\DAV\\SystemTag\\SystemTagsObjectMappingCollection' => $baseDir.'/../lib/SystemTag/SystemTagsObjectMappingCollection.php',
+    'OCA\\DAV\\SystemTag\\SystemTagsObjectTypeCollection' => $baseDir.'/../lib/SystemTag/SystemTagsObjectTypeCollection.php',
+    'OCA\\DAV\\SystemTag\\SystemTagsRelationsCollection' => $baseDir.'/../lib/SystemTag/SystemTagsRelationsCollection.php',
+    'OCA\\DAV\\Traits\\PrincipalProxyTrait' => $baseDir.'/../lib/Traits/PrincipalProxyTrait.php',
+    'OCA\\DAV\\Upload\\AssemblyStream' => $baseDir.'/../lib/Upload/AssemblyStream.php',
+    'OCA\\DAV\\Upload\\ChunkingPlugin' => $baseDir.'/../lib/Upload/ChunkingPlugin.php',
+    'OCA\\DAV\\Upload\\CleanupService' => $baseDir.'/../lib/Upload/CleanupService.php',
+    'OCA\\DAV\\Upload\\FutureFile' => $baseDir.'/../lib/Upload/FutureFile.php',
+    'OCA\\DAV\\Upload\\RootCollection' => $baseDir.'/../lib/Upload/RootCollection.php',
+    'OCA\\DAV\\Upload\\UploadFile' => $baseDir.'/../lib/Upload/UploadFile.php',
+    'OCA\\DAV\\Upload\\UploadFolder' => $baseDir.'/../lib/Upload/UploadFolder.php',
+    'OCA\\DAV\\Upload\\UploadHome' => $baseDir.'/../lib/Upload/UploadHome.php',
+    'OCA\\DAV\\UserMigration\\CalendarMigrator' => $baseDir.'/../lib/UserMigration/CalendarMigrator.php',
+    'OCA\\DAV\\UserMigration\\CalendarMigratorException' => $baseDir.'/../lib/UserMigration/CalendarMigratorException.php',
+    'OCA\\DAV\\UserMigration\\InvalidCalendarException' => $baseDir.'/../lib/UserMigration/InvalidCalendarException.php',
 );

lib/private/Files/View.php

Indentation +2118 added lines, -2118 removed lines

@@ -84,2122 +84,2122 @@
  * \OC\Files\Storage\Storage object
  */
 class View {
-	/** @var string */
-	private $fakeRoot = '';
-
-	/**
-	 * @var \OCP\Lock\ILockingProvider
-	 */
-	protected $lockingProvider;
-
-	private $lockingEnabled;
-
-	private $updaterEnabled = true;
-
-	/** @var \OC\User\Manager */
-	private $userManager;
-
-	/** @var \OCP\ILogger */
-	private $logger;
-
-	/**
-	 * @param string $root
-	 * @throws \Exception If $root contains an invalid path
-	 */
-	public function __construct($root = '') {
-		if (is_null($root)) {
-			throw new \InvalidArgumentException('Root can\'t be null');
-		}
-		if (!Filesystem::isValidPath($root)) {
-			throw new \Exception();
-		}
-
-		$this->fakeRoot = $root;
-		$this->lockingProvider = \OC::$server->getLockingProvider();
-		$this->lockingEnabled = !($this->lockingProvider instanceof \OC\Lock\NoopLockingProvider);
-		$this->userManager = \OC::$server->getUserManager();
-		$this->logger = \OC::$server->getLogger();
-	}
-
-	public function getAbsolutePath($path = '/') {
-		if ($path === null) {
-			return null;
-		}
-		$this->assertPathLength($path);
-		if ($path === '') {
-			$path = '/';
-		}
-		if ($path[0] !== '/') {
-			$path = '/' . $path;
-		}
-		return $this->fakeRoot . $path;
-	}
-
-	/**
-	 * change the root to a fake root
-	 *
-	 * @param string $fakeRoot
-	 * @return boolean|null
-	 */
-	public function chroot($fakeRoot) {
-		if (!$fakeRoot == '') {
-			if ($fakeRoot[0] !== '/') {
-				$fakeRoot = '/' . $fakeRoot;
-			}
-		}
-		$this->fakeRoot = $fakeRoot;
-	}
-
-	/**
-	 * get the fake root
-	 *
-	 * @return string
-	 */
-	public function getRoot() {
-		return $this->fakeRoot;
-	}
-
-	/**
-	 * get path relative to the root of the view
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getRelativePath($path) {
-		$this->assertPathLength($path);
-		if ($this->fakeRoot == '') {
-			return $path;
-		}
-
-		if (rtrim($path, '/') === rtrim($this->fakeRoot, '/')) {
-			return '/';
-		}
-
-		// missing slashes can cause wrong matches!
-		$root = rtrim($this->fakeRoot, '/') . '/';
-
-		if (strpos($path, $root) !== 0) {
-			return null;
-		} else {
-			$path = substr($path, strlen($this->fakeRoot));
-			if (strlen($path) === 0) {
-				return '/';
-			} else {
-				return $path;
-			}
-		}
-	}
-
-	/**
-	 * get the mountpoint of the storage object for a path
-	 * ( note: because a storage is not always mounted inside the fakeroot, the
-	 * returned mountpoint is relative to the absolute root of the filesystem
-	 * and does not take the chroot into account )
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getMountPoint($path) {
-		return Filesystem::getMountPoint($this->getAbsolutePath($path));
-	}
-
-	/**
-	 * get the mountpoint of the storage object for a path
-	 * ( note: because a storage is not always mounted inside the fakeroot, the
-	 * returned mountpoint is relative to the absolute root of the filesystem
-	 * and does not take the chroot into account )
-	 *
-	 * @param string $path
-	 * @return \OCP\Files\Mount\IMountPoint
-	 */
-	public function getMount($path) {
-		return Filesystem::getMountManager()->find($this->getAbsolutePath($path));
-	}
-
-	/**
-	 * resolve a path to a storage and internal path
-	 *
-	 * @param string $path
-	 * @return array an array consisting of the storage and the internal path
-	 */
-	public function resolvePath($path) {
-		$a = $this->getAbsolutePath($path);
-		$p = Filesystem::normalizePath($a);
-		return Filesystem::resolvePath($p);
-	}
-
-	/**
-	 * return the path to a local version of the file
-	 * we need this because we can't know if a file is stored local or not from
-	 * outside the filestorage and for some purposes a local file is needed
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getLocalFile($path) {
-		$parent = substr($path, 0, strrpos($path, '/'));
-		$path = $this->getAbsolutePath($path);
-		[$storage, $internalPath] = Filesystem::resolvePath($path);
-		if (Filesystem::isValidPath($parent) and $storage) {
-			return $storage->getLocalFile($internalPath);
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	public function getLocalFolder($path) {
-		$parent = substr($path, 0, strrpos($path, '/'));
-		$path = $this->getAbsolutePath($path);
-		[$storage, $internalPath] = Filesystem::resolvePath($path);
-		if (Filesystem::isValidPath($parent) and $storage) {
-			return $storage->getLocalFolder($internalPath);
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * the following functions operate with arguments and return values identical
-	 * to those of their PHP built-in equivalents. Mostly they are merely wrappers
-	 * for \OC\Files\Storage\Storage via basicOperation().
-	 */
-	public function mkdir($path) {
-		return $this->basicOperation('mkdir', $path, ['create', 'write']);
-	}
-
-	/**
-	 * remove mount point
-	 *
-	 * @param IMountPoint $mount
-	 * @param string $path relative to data/
-	 * @return boolean
-	 */
-	protected function removeMount($mount, $path) {
-		if ($mount instanceof MoveableMount) {
-			// cut of /user/files to get the relative path to data/user/files
-			$pathParts = explode('/', $path, 4);
-			$relPath = '/' . $pathParts[3];
-			$this->lockFile($relPath, ILockingProvider::LOCK_SHARED, true);
-			\OC_Hook::emit(
-				Filesystem::CLASSNAME, "umount",
-				[Filesystem::signal_param_path => $relPath]
-			);
-			$this->changeLock($relPath, ILockingProvider::LOCK_EXCLUSIVE, true);
-			$result = $mount->removeMount();
-			$this->changeLock($relPath, ILockingProvider::LOCK_SHARED, true);
-			if ($result) {
-				\OC_Hook::emit(
-					Filesystem::CLASSNAME, "post_umount",
-					[Filesystem::signal_param_path => $relPath]
-				);
-			}
-			$this->unlockFile($relPath, ILockingProvider::LOCK_SHARED, true);
-			return $result;
-		} else {
-			// do not allow deleting the storage's root / the mount point
-			// because for some storages it might delete the whole contents
-			// but isn't supposed to work that way
-			return false;
-		}
-	}
-
-	public function disableCacheUpdate() {
-		$this->updaterEnabled = false;
-	}
-
-	public function enableCacheUpdate() {
-		$this->updaterEnabled = true;
-	}
-
-	protected function writeUpdate(Storage $storage, $internalPath, $time = null) {
-		if ($this->updaterEnabled) {
-			if (is_null($time)) {
-				$time = time();
-			}
-			$storage->getUpdater()->update($internalPath, $time);
-		}
-	}
-
-	protected function removeUpdate(Storage $storage, $internalPath) {
-		if ($this->updaterEnabled) {
-			$storage->getUpdater()->remove($internalPath);
-		}
-	}
-
-	protected function renameUpdate(Storage $sourceStorage, Storage $targetStorage, $sourceInternalPath, $targetInternalPath) {
-		if ($this->updaterEnabled) {
-			$targetStorage->getUpdater()->renameFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function rmdir($path) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$mount = Filesystem::getMountManager()->find($absolutePath);
-		if ($mount->getInternalPath($absolutePath) === '') {
-			return $this->removeMount($mount, $absolutePath);
-		}
-		if ($this->is_dir($path)) {
-			$result = $this->basicOperation('rmdir', $path, ['delete']);
-		} else {
-			$result = false;
-		}
-
-		if (!$result && !$this->file_exists($path)) { //clear ghost files from the cache on delete
-			$storage = $mount->getStorage();
-			$internalPath = $mount->getInternalPath($absolutePath);
-			$storage->getUpdater()->remove($internalPath);
-		}
-		return $result;
-	}
-
-	/**
-	 * @param string $path
-	 * @return resource
-	 */
-	public function opendir($path) {
-		return $this->basicOperation('opendir', $path, ['read']);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function is_dir($path) {
-		if ($path == '/') {
-			return true;
-		}
-		return $this->basicOperation('is_dir', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function is_file($path) {
-		if ($path == '/') {
-			return false;
-		}
-		return $this->basicOperation('is_file', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function stat($path) {
-		return $this->basicOperation('stat', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function filetype($path) {
-		return $this->basicOperation('filetype', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function filesize($path) {
-		return $this->basicOperation('filesize', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 * @throws \OCP\Files\InvalidPathException
-	 */
-	public function readfile($path) {
-		$this->assertPathLength($path);
-		if (ob_get_level()) {
-			ob_end_clean();
-		}
-		$handle = $this->fopen($path, 'rb');
-		if ($handle) {
-			$chunkSize = 524288; // 512 kB chunks
-			while (!feof($handle)) {
-				echo fread($handle, $chunkSize);
-				flush();
-			}
-			fclose($handle);
-			return $this->filesize($path);
-		}
-		return false;
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $from
-	 * @param int $to
-	 * @return bool|mixed
-	 * @throws \OCP\Files\InvalidPathException
-	 * @throws \OCP\Files\UnseekableException
-	 */
-	public function readfilePart($path, $from, $to) {
-		$this->assertPathLength($path);
-		if (ob_get_level()) {
-			ob_end_clean();
-		}
-		$handle = $this->fopen($path, 'rb');
-		if ($handle) {
-			$chunkSize = 524288; // 512 kB chunks
-			$startReading = true;
-
-			if ($from !== 0 && $from !== '0' && fseek($handle, $from) !== 0) {
-				// forward file handle via chunked fread because fseek seem to have failed
-
-				$end = $from + 1;
-				while (!feof($handle) && ftell($handle) < $end && ftell($handle) !== $from) {
-					$len = $from - ftell($handle);
-					if ($len > $chunkSize) {
-						$len = $chunkSize;
-					}
-					$result = fread($handle, $len);
-
-					if ($result === false) {
-						$startReading = false;
-						break;
-					}
-				}
-			}
-
-			if ($startReading) {
-				$end = $to + 1;
-				while (!feof($handle) && ftell($handle) < $end) {
-					$len = $end - ftell($handle);
-					if ($len > $chunkSize) {
-						$len = $chunkSize;
-					}
-					echo fread($handle, $len);
-					flush();
-				}
-				return ftell($handle) - $from;
-			}
-
-			throw new \OCP\Files\UnseekableException('fseek error');
-		}
-		return false;
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function isCreatable($path) {
-		return $this->basicOperation('isCreatable', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function isReadable($path) {
-		return $this->basicOperation('isReadable', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function isUpdatable($path) {
-		return $this->basicOperation('isUpdatable', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function isDeletable($path) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$mount = Filesystem::getMountManager()->find($absolutePath);
-		if ($mount->getInternalPath($absolutePath) === '') {
-			return $mount instanceof MoveableMount;
-		}
-		return $this->basicOperation('isDeletable', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function isSharable($path) {
-		return $this->basicOperation('isSharable', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function file_exists($path) {
-		if ($path == '/') {
-			return true;
-		}
-		return $this->basicOperation('file_exists', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function filemtime($path) {
-		return $this->basicOperation('filemtime', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @param int|string $mtime
-	 * @return bool
-	 */
-	public function touch($path, $mtime = null) {
-		if (!is_null($mtime) and !is_numeric($mtime)) {
-			$mtime = strtotime($mtime);
-		}
-
-		$hooks = ['touch'];
-
-		if (!$this->file_exists($path)) {
-			$hooks[] = 'create';
-			$hooks[] = 'write';
-		}
-		try {
-			$result = $this->basicOperation('touch', $path, $hooks, $mtime);
-		} catch (\Exception $e) {
-			$this->logger->logException($e, ['level' => ILogger::INFO, 'message' => 'Error while setting modified time']);
-			$result = false;
-		}
-		if (!$result) {
-			// If create file fails because of permissions on external storage like SMB folders,
-			// check file exists and return false if not.
-			if (!$this->file_exists($path)) {
-				return false;
-			}
-			if (is_null($mtime)) {
-				$mtime = time();
-			}
-			//if native touch fails, we emulate it by changing the mtime in the cache
-			$this->putFileInfo($path, ['mtime' => floor($mtime)]);
-		}
-		return true;
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 * @throws LockedException
-	 */
-	public function file_get_contents($path) {
-		return $this->basicOperation('file_get_contents', $path, ['read']);
-	}
-
-	/**
-	 * @param bool $exists
-	 * @param string $path
-	 * @param bool $run
-	 */
-	protected function emit_file_hooks_pre($exists, $path, &$run) {
-		if (!$exists) {
-			\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_create, [
-				Filesystem::signal_param_path => $this->getHookPath($path),
-				Filesystem::signal_param_run => &$run,
-			]);
-		} else {
-			\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_update, [
-				Filesystem::signal_param_path => $this->getHookPath($path),
-				Filesystem::signal_param_run => &$run,
-			]);
-		}
-		\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_write, [
-			Filesystem::signal_param_path => $this->getHookPath($path),
-			Filesystem::signal_param_run => &$run,
-		]);
-	}
-
-	/**
-	 * @param bool $exists
-	 * @param string $path
-	 */
-	protected function emit_file_hooks_post($exists, $path) {
-		if (!$exists) {
-			\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_post_create, [
-				Filesystem::signal_param_path => $this->getHookPath($path),
-			]);
-		} else {
-			\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_post_update, [
-				Filesystem::signal_param_path => $this->getHookPath($path),
-			]);
-		}
-		\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_post_write, [
-			Filesystem::signal_param_path => $this->getHookPath($path),
-		]);
-	}
-
-	/**
-	 * @param string $path
-	 * @param string|resource $data
-	 * @return bool|mixed
-	 * @throws LockedException
-	 */
-	public function file_put_contents($path, $data) {
-		if (is_resource($data)) { //not having to deal with streams in file_put_contents makes life easier
-			$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
-			if (Filesystem::isValidPath($path)
-				and !Filesystem::isFileBlacklisted($path)
-			) {
-				$path = $this->getRelativePath($absolutePath);
-
-				$this->lockFile($path, ILockingProvider::LOCK_SHARED);
-
-				$exists = $this->file_exists($path);
-				$run = true;
-				if ($this->shouldEmitHooks($path)) {
-					$this->emit_file_hooks_pre($exists, $path, $run);
-				}
-				if (!$run) {
-					$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-					return false;
-				}
-
-				try {
-					$this->changeLock($path, ILockingProvider::LOCK_EXCLUSIVE);
-				} catch (\Exception $e) {
-					// Release the shared lock before throwing.
-					$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-					throw $e;
-				}
-
-				/** @var \OC\Files\Storage\Storage $storage */
-				[$storage, $internalPath] = $this->resolvePath($path);
-				$target = $storage->fopen($internalPath, 'w');
-				if ($target) {
-					[, $result] = \OC_Helper::streamCopy($data, $target);
-					fclose($target);
-					fclose($data);
-
-					$this->writeUpdate($storage, $internalPath);
-
-					$this->changeLock($path, ILockingProvider::LOCK_SHARED);
-
-					if ($this->shouldEmitHooks($path) && $result !== false) {
-						$this->emit_file_hooks_post($exists, $path);
-					}
-					$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-					return $result;
-				} else {
-					$this->unlockFile($path, ILockingProvider::LOCK_EXCLUSIVE);
-					return false;
-				}
-			} else {
-				return false;
-			}
-		} else {
-			$hooks = $this->file_exists($path) ? ['update', 'write'] : ['create', 'write'];
-			return $this->basicOperation('file_put_contents', $path, $hooks, $data);
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function unlink($path) {
-		if ($path === '' || $path === '/') {
-			// do not allow deleting the root
-			return false;
-		}
-		$postFix = (substr($path, -1) === '/') ? '/' : '';
-		$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
-		$mount = Filesystem::getMountManager()->find($absolutePath . $postFix);
-		if ($mount->getInternalPath($absolutePath) === '') {
-			return $this->removeMount($mount, $absolutePath);
-		}
-		if ($this->is_dir($path)) {
-			$result = $this->basicOperation('rmdir', $path, ['delete']);
-		} else {
-			$result = $this->basicOperation('unlink', $path, ['delete']);
-		}
-		if (!$result && !$this->file_exists($path)) { //clear ghost files from the cache on delete
-			$storage = $mount->getStorage();
-			$internalPath = $mount->getInternalPath($absolutePath);
-			$storage->getUpdater()->remove($internalPath);
-			return true;
-		} else {
-			return $result;
-		}
-	}
-
-	/**
-	 * @param string $directory
-	 * @return bool|mixed
-	 */
-	public function deleteAll($directory) {
-		return $this->rmdir($directory);
-	}
-
-	/**
-	 * Rename/move a file or folder from the source path to target path.
-	 *
-	 * @param string $path1 source path
-	 * @param string $path2 target path
-	 *
-	 * @return bool|mixed
-	 * @throws LockedException
-	 */
-	public function rename($path1, $path2) {
-		$absolutePath1 = Filesystem::normalizePath($this->getAbsolutePath($path1));
-		$absolutePath2 = Filesystem::normalizePath($this->getAbsolutePath($path2));
-		$result = false;
-		if (
-			Filesystem::isValidPath($path2)
-			and Filesystem::isValidPath($path1)
-			and !Filesystem::isFileBlacklisted($path2)
-		) {
-			$path1 = $this->getRelativePath($absolutePath1);
-			$path2 = $this->getRelativePath($absolutePath2);
-			$exists = $this->file_exists($path2);
-
-			if ($path1 == null or $path2 == null) {
-				return false;
-			}
-
-			$this->lockFile($path1, ILockingProvider::LOCK_SHARED, true);
-			try {
-				$this->lockFile($path2, ILockingProvider::LOCK_SHARED, true);
-
-				$run = true;
-				if ($this->shouldEmitHooks($path1) && (Cache\Scanner::isPartialFile($path1) && !Cache\Scanner::isPartialFile($path2))) {
-					// if it was a rename from a part file to a regular file it was a write and not a rename operation
-					$this->emit_file_hooks_pre($exists, $path2, $run);
-				} elseif ($this->shouldEmitHooks($path1)) {
-					\OC_Hook::emit(
-						Filesystem::CLASSNAME, Filesystem::signal_rename,
-						[
-							Filesystem::signal_param_oldpath => $this->getHookPath($path1),
-							Filesystem::signal_param_newpath => $this->getHookPath($path2),
-							Filesystem::signal_param_run => &$run
-						]
-					);
-				}
-				if ($run) {
-					$this->verifyPath(dirname($path2), basename($path2));
-
-					$manager = Filesystem::getMountManager();
-					$mount1 = $this->getMount($path1);
-					$mount2 = $this->getMount($path2);
-					$storage1 = $mount1->getStorage();
-					$storage2 = $mount2->getStorage();
-					$internalPath1 = $mount1->getInternalPath($absolutePath1);
-					$internalPath2 = $mount2->getInternalPath($absolutePath2);
-
-					$this->changeLock($path1, ILockingProvider::LOCK_EXCLUSIVE, true);
-					try {
-						$this->changeLock($path2, ILockingProvider::LOCK_EXCLUSIVE, true);
-
-						if ($internalPath1 === '') {
-							if ($mount1 instanceof MoveableMount) {
-								$sourceParentMount = $this->getMount(dirname($path1));
-								if ($sourceParentMount === $mount2 && $this->targetIsNotShared($storage2, $internalPath2)) {
-									/**
-									 * @var \OC\Files\Mount\MountPoint | \OC\Files\Mount\MoveableMount $mount1
-									 */
-									$sourceMountPoint = $mount1->getMountPoint();
-									$result = $mount1->moveMount($absolutePath2);
-									$manager->moveMount($sourceMountPoint, $mount1->getMountPoint());
-								} else {
-									$result = false;
-								}
-							} else {
-								$result = false;
-							}
-							// moving a file/folder within the same mount point
-						} elseif ($storage1 === $storage2) {
-							if ($storage1) {
-								$result = $storage1->rename($internalPath1, $internalPath2);
-							} else {
-								$result = false;
-							}
-							// moving a file/folder between storages (from $storage1 to $storage2)
-						} else {
-							$result = $storage2->moveFromStorage($storage1, $internalPath1, $internalPath2);
-						}
-
-						if ((Cache\Scanner::isPartialFile($path1) && !Cache\Scanner::isPartialFile($path2)) && $result !== false) {
-							// if it was a rename from a part file to a regular file it was a write and not a rename operation
-							$this->writeUpdate($storage2, $internalPath2);
-						} elseif ($result) {
-							if ($internalPath1 !== '') { // don't do a cache update for moved mounts
-								$this->renameUpdate($storage1, $storage2, $internalPath1, $internalPath2);
-							}
-						}
-					} catch (\Exception $e) {
-						throw $e;
-					} finally {
-						$this->changeLock($path1, ILockingProvider::LOCK_SHARED, true);
-						$this->changeLock($path2, ILockingProvider::LOCK_SHARED, true);
-					}
-
-					if ((Cache\Scanner::isPartialFile($path1) && !Cache\Scanner::isPartialFile($path2)) && $result !== false) {
-						if ($this->shouldEmitHooks()) {
-							$this->emit_file_hooks_post($exists, $path2);
-						}
-					} elseif ($result) {
-						if ($this->shouldEmitHooks($path1) and $this->shouldEmitHooks($path2)) {
-							\OC_Hook::emit(
-								Filesystem::CLASSNAME,
-								Filesystem::signal_post_rename,
-								[
-									Filesystem::signal_param_oldpath => $this->getHookPath($path1),
-									Filesystem::signal_param_newpath => $this->getHookPath($path2)
-								]
-							);
-						}
-					}
-				}
-			} catch (\Exception $e) {
-				throw $e;
-			} finally {
-				$this->unlockFile($path1, ILockingProvider::LOCK_SHARED, true);
-				$this->unlockFile($path2, ILockingProvider::LOCK_SHARED, true);
-			}
-		}
-		return $result;
-	}
-
-	/**
-	 * Copy a file/folder from the source path to target path
-	 *
-	 * @param string $path1 source path
-	 * @param string $path2 target path
-	 * @param bool $preserveMtime whether to preserve mtime on the copy
-	 *
-	 * @return bool|mixed
-	 */
-	public function copy($path1, $path2, $preserveMtime = false) {
-		$absolutePath1 = Filesystem::normalizePath($this->getAbsolutePath($path1));
-		$absolutePath2 = Filesystem::normalizePath($this->getAbsolutePath($path2));
-		$result = false;
-		if (
-			Filesystem::isValidPath($path2)
-			and Filesystem::isValidPath($path1)
-			and !Filesystem::isFileBlacklisted($path2)
-		) {
-			$path1 = $this->getRelativePath($absolutePath1);
-			$path2 = $this->getRelativePath($absolutePath2);
-
-			if ($path1 == null or $path2 == null) {
-				return false;
-			}
-			$run = true;
-
-			$this->lockFile($path2, ILockingProvider::LOCK_SHARED);
-			$this->lockFile($path1, ILockingProvider::LOCK_SHARED);
-			$lockTypePath1 = ILockingProvider::LOCK_SHARED;
-			$lockTypePath2 = ILockingProvider::LOCK_SHARED;
-
-			try {
-				$exists = $this->file_exists($path2);
-				if ($this->shouldEmitHooks()) {
-					\OC_Hook::emit(
-						Filesystem::CLASSNAME,
-						Filesystem::signal_copy,
-						[
-							Filesystem::signal_param_oldpath => $this->getHookPath($path1),
-							Filesystem::signal_param_newpath => $this->getHookPath($path2),
-							Filesystem::signal_param_run => &$run
-						]
-					);
-					$this->emit_file_hooks_pre($exists, $path2, $run);
-				}
-				if ($run) {
-					$mount1 = $this->getMount($path1);
-					$mount2 = $this->getMount($path2);
-					$storage1 = $mount1->getStorage();
-					$internalPath1 = $mount1->getInternalPath($absolutePath1);
-					$storage2 = $mount2->getStorage();
-					$internalPath2 = $mount2->getInternalPath($absolutePath2);
-
-					$this->changeLock($path2, ILockingProvider::LOCK_EXCLUSIVE);
-					$lockTypePath2 = ILockingProvider::LOCK_EXCLUSIVE;
-
-					if ($mount1->getMountPoint() == $mount2->getMountPoint()) {
-						if ($storage1) {
-							$result = $storage1->copy($internalPath1, $internalPath2);
-						} else {
-							$result = false;
-						}
-					} else {
-						$result = $storage2->copyFromStorage($storage1, $internalPath1, $internalPath2);
-					}
-
-					$this->writeUpdate($storage2, $internalPath2);
-
-					$this->changeLock($path2, ILockingProvider::LOCK_SHARED);
-					$lockTypePath2 = ILockingProvider::LOCK_SHARED;
-
-					if ($this->shouldEmitHooks() && $result !== false) {
-						\OC_Hook::emit(
-							Filesystem::CLASSNAME,
-							Filesystem::signal_post_copy,
-							[
-								Filesystem::signal_param_oldpath => $this->getHookPath($path1),
-								Filesystem::signal_param_newpath => $this->getHookPath($path2)
-							]
-						);
-						$this->emit_file_hooks_post($exists, $path2);
-					}
-				}
-			} catch (\Exception $e) {
-				$this->unlockFile($path2, $lockTypePath2);
-				$this->unlockFile($path1, $lockTypePath1);
-				throw $e;
-			}
-
-			$this->unlockFile($path2, $lockTypePath2);
-			$this->unlockFile($path1, $lockTypePath1);
-		}
-		return $result;
-	}
-
-	/**
-	 * @param string $path
-	 * @param string $mode 'r' or 'w'
-	 * @return resource
-	 * @throws LockedException
-	 */
-	public function fopen($path, $mode) {
-		$mode = str_replace('b', '', $mode); // the binary flag is a windows only feature which we do not support
-		$hooks = [];
-		switch ($mode) {
-			case 'r':
-				$hooks[] = 'read';
-				break;
-			case 'r+':
-			case 'w+':
-			case 'x+':
-			case 'a+':
-				$hooks[] = 'read';
-				$hooks[] = 'write';
-				break;
-			case 'w':
-			case 'x':
-			case 'a':
-				$hooks[] = 'write';
-				break;
-			default:
-				\OCP\Util::writeLog('core', 'invalid mode (' . $mode . ') for ' . $path, ILogger::ERROR);
-		}
-
-		if ($mode !== 'r' && $mode !== 'w') {
-			\OC::$server->getLogger()->info('Trying to open a file with a mode other than "r" or "w" can cause severe performance issues with some backends');
-		}
-
-		return $this->basicOperation('fopen', $path, $hooks, $mode);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|string
-	 * @throws \OCP\Files\InvalidPathException
-	 */
-	public function toTmpFile($path) {
-		$this->assertPathLength($path);
-		if (Filesystem::isValidPath($path)) {
-			$source = $this->fopen($path, 'r');
-			if ($source) {
-				$extension = pathinfo($path, PATHINFO_EXTENSION);
-				$tmpFile = \OC::$server->getTempManager()->getTemporaryFile($extension);
-				file_put_contents($tmpFile, $source);
-				return $tmpFile;
-			} else {
-				return false;
-			}
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * @param string $tmpFile
-	 * @param string $path
-	 * @return bool|mixed
-	 * @throws \OCP\Files\InvalidPathException
-	 */
-	public function fromTmpFile($tmpFile, $path) {
-		$this->assertPathLength($path);
-		if (Filesystem::isValidPath($path)) {
-
-			// Get directory that the file is going into
-			$filePath = dirname($path);
-
-			// Create the directories if any
-			if (!$this->file_exists($filePath)) {
-				$result = $this->createParentDirectories($filePath);
-				if ($result === false) {
-					return false;
-				}
-			}
-
-			$source = fopen($tmpFile, 'r');
-			if ($source) {
-				$result = $this->file_put_contents($path, $source);
-				// $this->file_put_contents() might have already closed
-				// the resource, so we check it, before trying to close it
-				// to avoid messages in the error log.
-				if (is_resource($source)) {
-					fclose($source);
-				}
-				unlink($tmpFile);
-				return $result;
-			} else {
-				return false;
-			}
-		} else {
-			return false;
-		}
-	}
-
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 * @throws \OCP\Files\InvalidPathException
-	 */
-	public function getMimeType($path) {
-		$this->assertPathLength($path);
-		return $this->basicOperation('getMimeType', $path);
-	}
-
-	/**
-	 * @param string $type
-	 * @param string $path
-	 * @param bool $raw
-	 * @return bool|string
-	 */
-	public function hash($type, $path, $raw = false) {
-		$postFix = (substr($path, -1) === '/') ? '/' : '';
-		$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
-		if (Filesystem::isValidPath($path)) {
-			$path = $this->getRelativePath($absolutePath);
-			if ($path == null) {
-				return false;
-			}
-			if ($this->shouldEmitHooks($path)) {
-				\OC_Hook::emit(
-					Filesystem::CLASSNAME,
-					Filesystem::signal_read,
-					[Filesystem::signal_param_path => $this->getHookPath($path)]
-				);
-			}
-			/** @var Storage|null $storage */
-			[$storage, $internalPath] = Filesystem::resolvePath($absolutePath . $postFix);
-			if ($storage) {
-				return $storage->hash($type, $internalPath, $raw);
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 * @throws \OCP\Files\InvalidPathException
-	 */
-	public function free_space($path = '/') {
-		$this->assertPathLength($path);
-		$result = $this->basicOperation('free_space', $path);
-		if ($result === null) {
-			throw new InvalidPathException();
-		}
-		return $result;
-	}
-
-	/**
-	 * abstraction layer for basic filesystem functions: wrapper for \OC\Files\Storage\Storage
-	 *
-	 * @param string $operation
-	 * @param string $path
-	 * @param array $hooks (optional)
-	 * @param mixed $extraParam (optional)
-	 * @return mixed
-	 * @throws LockedException
-	 *
-	 * This method takes requests for basic filesystem functions (e.g. reading & writing
-	 * files), processes hooks and proxies, sanitises paths, and finally passes them on to
-	 * \OC\Files\Storage\Storage for delegation to a storage backend for execution
-	 */
-	private function basicOperation($operation, $path, $hooks = [], $extraParam = null) {
-		$postFix = (substr($path, -1) === '/') ? '/' : '';
-		$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
-		if (Filesystem::isValidPath($path)
-			and !Filesystem::isFileBlacklisted($path)
-		) {
-			$path = $this->getRelativePath($absolutePath);
-			if ($path == null) {
-				return false;
-			}
-
-			if (in_array('write', $hooks) || in_array('delete', $hooks) || in_array('read', $hooks)) {
-				// always a shared lock during pre-hooks so the hook can read the file
-				$this->lockFile($path, ILockingProvider::LOCK_SHARED);
-			}
-
-			$run = $this->runHooks($hooks, $path);
-			/** @var \OC\Files\Storage\Storage $storage */
-			[$storage, $internalPath] = Filesystem::resolvePath($absolutePath . $postFix);
-			if ($run and $storage) {
-				if (in_array('write', $hooks) || in_array('delete', $hooks)) {
-					try {
-						$this->changeLock($path, ILockingProvider::LOCK_EXCLUSIVE);
-					} catch (LockedException $e) {
-						// release the shared lock we acquired before quiting
-						$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-						throw $e;
-					}
-				}
-				try {
-					if (!is_null($extraParam)) {
-						$result = $storage->$operation($internalPath, $extraParam);
-					} else {
-						$result = $storage->$operation($internalPath);
-					}
-				} catch (\Exception $e) {
-					if (in_array('write', $hooks) || in_array('delete', $hooks)) {
-						$this->unlockFile($path, ILockingProvider::LOCK_EXCLUSIVE);
-					} elseif (in_array('read', $hooks)) {
-						$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-					}
-					throw $e;
-				}
-
-				if ($result && in_array('delete', $hooks) and $result) {
-					$this->removeUpdate($storage, $internalPath);
-				}
-				if ($result && in_array('write', $hooks, true) && $operation !== 'fopen' && $operation !== 'touch') {
-					$this->writeUpdate($storage, $internalPath);
-				}
-				if ($result && in_array('touch', $hooks)) {
-					$this->writeUpdate($storage, $internalPath, $extraParam);
-				}
-
-				if ((in_array('write', $hooks) || in_array('delete', $hooks)) && ($operation !== 'fopen' || $result === false)) {
-					$this->changeLock($path, ILockingProvider::LOCK_SHARED);
-				}
-
-				$unlockLater = false;
-				if ($this->lockingEnabled && $operation === 'fopen' && is_resource($result)) {
-					$unlockLater = true;
-					// make sure our unlocking callback will still be called if connection is aborted
-					ignore_user_abort(true);
-					$result = CallbackWrapper::wrap($result, null, null, function () use ($hooks, $path) {
-						if (in_array('write', $hooks)) {
-							$this->unlockFile($path, ILockingProvider::LOCK_EXCLUSIVE);
-						} elseif (in_array('read', $hooks)) {
-							$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-						}
-					});
-				}
-
-				if ($this->shouldEmitHooks($path) && $result !== false) {
-					if ($operation != 'fopen') { //no post hooks for fopen, the file stream is still open
-						$this->runHooks($hooks, $path, true);
-					}
-				}
-
-				if (!$unlockLater
-					&& (in_array('write', $hooks) || in_array('delete', $hooks) || in_array('read', $hooks))
-				) {
-					$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-				}
-				return $result;
-			} else {
-				$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-			}
-		}
-		return null;
-	}
-
-	/**
-	 * get the path relative to the default root for hook usage
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	private function getHookPath($path) {
-		if (!Filesystem::getView()) {
-			return $path;
-		}
-		return Filesystem::getView()->getRelativePath($this->getAbsolutePath($path));
-	}
-
-	private function shouldEmitHooks($path = '') {
-		if ($path && Cache\Scanner::isPartialFile($path)) {
-			return false;
-		}
-		if (!Filesystem::$loaded) {
-			return false;
-		}
-		$defaultRoot = Filesystem::getRoot();
-		if ($defaultRoot === null) {
-			return false;
-		}
-		if ($this->fakeRoot === $defaultRoot) {
-			return true;
-		}
-		$fullPath = $this->getAbsolutePath($path);
-
-		if ($fullPath === $defaultRoot) {
-			return true;
-		}
-
-		return (strlen($fullPath) > strlen($defaultRoot)) && (substr($fullPath, 0, strlen($defaultRoot) + 1) === $defaultRoot . '/');
-	}
-
-	/**
-	 * @param string[] $hooks
-	 * @param string $path
-	 * @param bool $post
-	 * @return bool
-	 */
-	private function runHooks($hooks, $path, $post = false) {
-		$relativePath = $path;
-		$path = $this->getHookPath($path);
-		$prefix = $post ? 'post_' : '';
-		$run = true;
-		if ($this->shouldEmitHooks($relativePath)) {
-			foreach ($hooks as $hook) {
-				if ($hook != 'read') {
-					\OC_Hook::emit(
-						Filesystem::CLASSNAME,
-						$prefix . $hook,
-						[
-							Filesystem::signal_param_run => &$run,
-							Filesystem::signal_param_path => $path
-						]
-					);
-				} elseif (!$post) {
-					\OC_Hook::emit(
-						Filesystem::CLASSNAME,
-						$prefix . $hook,
-						[
-							Filesystem::signal_param_path => $path
-						]
-					);
-				}
-			}
-		}
-		return $run;
-	}
-
-	/**
-	 * check if a file or folder has been updated since $time
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @return bool
-	 */
-	public function hasUpdated($path, $time) {
-		return $this->basicOperation('hasUpdated', $path, [], $time);
-	}
-
-	/**
-	 * @param string $ownerId
-	 * @return \OC\User\User
-	 */
-	private function getUserObjectForOwner($ownerId) {
-		$owner = $this->userManager->get($ownerId);
-		if ($owner instanceof IUser) {
-			return $owner;
-		} else {
-			return new User($ownerId, null, \OC::$server->getEventDispatcher());
-		}
-	}
-
-	/**
-	 * Get file info from cache
-	 *
-	 * If the file is not in cached it will be scanned
-	 * If the file has changed on storage the cache will be updated
-	 *
-	 * @param \OC\Files\Storage\Storage $storage
-	 * @param string $internalPath
-	 * @param string $relativePath
-	 * @return ICacheEntry|bool
-	 */
-	private function getCacheEntry($storage, $internalPath, $relativePath) {
-		$cache = $storage->getCache($internalPath);
-		$data = $cache->get($internalPath);
-		$watcher = $storage->getWatcher($internalPath);
-
-		try {
-			// if the file is not in the cache or needs to be updated, trigger the scanner and reload the data
-			if (!$data || (isset($data['size']) && $data['size'] === -1)) {
-				if (!$storage->file_exists($internalPath)) {
-					return false;
-				}
-				// don't need to get a lock here since the scanner does it's own locking
-				$scanner = $storage->getScanner($internalPath);
-				$scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW);
-				$data = $cache->get($internalPath);
-			} elseif (!Cache\Scanner::isPartialFile($internalPath) && $watcher->needsUpdate($internalPath, $data)) {
-				$this->lockFile($relativePath, ILockingProvider::LOCK_SHARED);
-				$watcher->update($internalPath, $data);
-				$storage->getPropagator()->propagateChange($internalPath, time());
-				$data = $cache->get($internalPath);
-				$this->unlockFile($relativePath, ILockingProvider::LOCK_SHARED);
-			}
-		} catch (LockedException $e) {
-			// if the file is locked we just use the old cache info
-		}
-
-		return $data;
-	}
-
-	/**
-	 * get the filesystem info
-	 *
-	 * @param string $path
-	 * @param boolean|string $includeMountPoints true to add mountpoint sizes,
-	 * 'ext' to add only ext storage mount point sizes. Defaults to true.
-	 * defaults to true
-	 * @return \OC\Files\FileInfo|false False if file does not exist
-	 */
-	public function getFileInfo($path, $includeMountPoints = true) {
-		$this->assertPathLength($path);
-		if (!Filesystem::isValidPath($path)) {
-			return false;
-		}
-		if (Cache\Scanner::isPartialFile($path)) {
-			return $this->getPartFileInfo($path);
-		}
-		$relativePath = $path;
-		$path = Filesystem::normalizePath($this->fakeRoot . '/' . $path);
-
-		$mount = Filesystem::getMountManager()->find($path);
-		$storage = $mount->getStorage();
-		$internalPath = $mount->getInternalPath($path);
-		if ($storage) {
-			$data = $this->getCacheEntry($storage, $internalPath, $relativePath);
-
-			if (!$data instanceof ICacheEntry) {
-				return false;
-			}
-
-			if ($mount instanceof MoveableMount && $internalPath === '') {
-				$data['permissions'] |= \OCP\Constants::PERMISSION_DELETE;
-			}
-			$ownerId = $storage->getOwner($internalPath);
-			$owner = null;
-			if ($ownerId !== null && $ownerId !== false) {
-				// ownerId might be null if files are accessed with an access token without file system access
-				$owner = $this->getUserObjectForOwner($ownerId);
-			}
-			$info = new FileInfo($path, $storage, $internalPath, $data, $mount, $owner);
-
-			if (isset($data['fileid'])) {
-				if ($includeMountPoints and $data['mimetype'] === 'httpd/unix-directory') {
-					//add the sizes of other mount points to the folder
-					$extOnly = ($includeMountPoints === 'ext');
-					$mounts = Filesystem::getMountManager()->findIn($path);
-					$info->setSubMounts(array_filter($mounts, function (IMountPoint $mount) use ($extOnly) {
-						$subStorage = $mount->getStorage();
-						return !($extOnly && $subStorage instanceof \OCA\Files_Sharing\SharedStorage);
-					}));
-				}
-			}
-
-			return $info;
-		} else {
-			\OC::$server->getLogger()->warning('Storage not valid for mountpoint: ' . $mount->getMountPoint());
-		}
-
-		return false;
-	}
-
-	/**
-	 * get the content of a directory
-	 *
-	 * @param string $directory path under datadirectory
-	 * @param string $mimetype_filter limit returned content to this mimetype or mimepart
-	 * @return FileInfo[]
-	 */
-	public function getDirectoryContent($directory, $mimetype_filter = '') {
-		$this->assertPathLength($directory);
-		if (!Filesystem::isValidPath($directory)) {
-			return [];
-		}
-		$path = $this->getAbsolutePath($directory);
-		$path = Filesystem::normalizePath($path);
-		$mount = $this->getMount($directory);
-		if (!$mount) {
-			return [];
-		}
-		$storage = $mount->getStorage();
-		$internalPath = $mount->getInternalPath($path);
-		if ($storage) {
-			$cache = $storage->getCache($internalPath);
-			$user = \OC_User::getUser();
-
-			$data = $this->getCacheEntry($storage, $internalPath, $directory);
-
-			if (!$data instanceof ICacheEntry || !isset($data['fileid']) || !($data->getPermissions() && Constants::PERMISSION_READ)) {
-				return [];
-			}
-
-			$folderId = $data['fileid'];
-			$contents = $cache->getFolderContentsById($folderId); //TODO: mimetype_filter
-
-			$sharingDisabled = \OCP\Util::isSharingDisabledForUser();
-
-			$fileNames = array_map(function (ICacheEntry $content) {
-				return $content->getName();
-			}, $contents);
-			/**
-			 * @var \OC\Files\FileInfo[] $fileInfos
-			 */
-			$fileInfos = array_map(function (ICacheEntry $content) use ($path, $storage, $mount, $sharingDisabled) {
-				if ($sharingDisabled) {
-					$content['permissions'] = $content['permissions'] & ~\OCP\Constants::PERMISSION_SHARE;
-				}
-				$owner = $this->getUserObjectForOwner($storage->getOwner($content['path']));
-				return new FileInfo($path . '/' . $content['name'], $storage, $content['path'], $content, $mount, $owner);
-			}, $contents);
-			$files = array_combine($fileNames, $fileInfos);
-
-			//add a folder for any mountpoint in this directory and add the sizes of other mountpoints to the folders
-			$mounts = Filesystem::getMountManager()->findIn($path);
-			$dirLength = strlen($path);
-			foreach ($mounts as $mount) {
-				$mountPoint = $mount->getMountPoint();
-				$subStorage = $mount->getStorage();
-				if ($subStorage) {
-					$subCache = $subStorage->getCache('');
-
-					$rootEntry = $subCache->get('');
-					if (!$rootEntry) {
-						$subScanner = $subStorage->getScanner();
-						try {
-							$subScanner->scanFile('');
-						} catch (\OCP\Files\StorageNotAvailableException $e) {
-							continue;
-						} catch (\OCP\Files\StorageInvalidException $e) {
-							continue;
-						} catch (\Exception $e) {
-							// sometimes when the storage is not available it can be any exception
-							\OC::$server->getLogger()->logException($e, [
-								'message' => 'Exception while scanning storage "' . $subStorage->getId() . '"',
-								'level' => ILogger::ERROR,
-								'app' => 'lib',
-							]);
-							continue;
-						}
-						$rootEntry = $subCache->get('');
-					}
-
-					if ($rootEntry && ($rootEntry->getPermissions() && Constants::PERMISSION_READ)) {
-						$relativePath = trim(substr($mountPoint, $dirLength), '/');
-						if ($pos = strpos($relativePath, '/')) {
-							//mountpoint inside subfolder add size to the correct folder
-							$entryName = substr($relativePath, 0, $pos);
-							foreach ($files as &$entry) {
-								if ($entry->getName() === $entryName) {
-									$entry->addSubEntry($rootEntry, $mountPoint);
-								}
-							}
-						} else { //mountpoint in this folder, add an entry for it
-							$rootEntry['name'] = $relativePath;
-							$rootEntry['type'] = $rootEntry['mimetype'] === 'httpd/unix-directory' ? 'dir' : 'file';
-							$permissions = $rootEntry['permissions'];
-							// do not allow renaming/deleting the mount point if they are not shared files/folders
-							// for shared files/folders we use the permissions given by the owner
-							if ($mount instanceof MoveableMount) {
-								$rootEntry['permissions'] = $permissions | \OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE;
-							} else {
-								$rootEntry['permissions'] = $permissions & (\OCP\Constants::PERMISSION_ALL - (\OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE));
-							}
-
-							$rootEntry['path'] = substr(Filesystem::normalizePath($path . '/' . $rootEntry['name']), strlen($user) + 2); // full path without /$user/
-
-							// if sharing was disabled for the user we remove the share permissions
-							if (\OCP\Util::isSharingDisabledForUser()) {
-								$rootEntry['permissions'] = $rootEntry['permissions'] & ~\OCP\Constants::PERMISSION_SHARE;
-							}
-
-							$owner = $this->getUserObjectForOwner($subStorage->getOwner(''));
-							$files[$rootEntry->getName()] = new FileInfo($path . '/' . $rootEntry['name'], $subStorage, '', $rootEntry, $mount, $owner);
-						}
-					}
-				}
-			}
-
-			if ($mimetype_filter) {
-				$files = array_filter($files, function (FileInfo $file) use ($mimetype_filter) {
-					if (strpos($mimetype_filter, '/')) {
-						return $file->getMimetype() === $mimetype_filter;
-					} else {
-						return $file->getMimePart() === $mimetype_filter;
-					}
-				});
-			}
-
-			return array_values($files);
-		} else {
-			return [];
-		}
-	}
-
-	/**
-	 * change file metadata
-	 *
-	 * @param string $path
-	 * @param array|\OCP\Files\FileInfo $data
-	 * @return int
-	 *
-	 * returns the fileid of the updated file
-	 */
-	public function putFileInfo($path, $data) {
-		$this->assertPathLength($path);
-		if ($data instanceof FileInfo) {
-			$data = $data->getData();
-		}
-		$path = Filesystem::normalizePath($this->fakeRoot . '/' . $path);
-		/**
-		 * @var \OC\Files\Storage\Storage $storage
-		 * @var string $internalPath
-		 */
-		[$storage, $internalPath] = Filesystem::resolvePath($path);
-		if ($storage) {
-			$cache = $storage->getCache($path);
-
-			if (!$cache->inCache($internalPath)) {
-				$scanner = $storage->getScanner($internalPath);
-				$scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW);
-			}
-
-			return $cache->put($internalPath, $data);
-		} else {
-			return -1;
-		}
-	}
-
-	/**
-	 * search for files with the name matching $query
-	 *
-	 * @param string $query
-	 * @return FileInfo[]
-	 */
-	public function search($query) {
-		return $this->searchCommon('search', ['%' . $query . '%']);
-	}
-
-	/**
-	 * search for files with the name matching $query
-	 *
-	 * @param string $query
-	 * @return FileInfo[]
-	 */
-	public function searchRaw($query) {
-		return $this->searchCommon('search', [$query]);
-	}
-
-	/**
-	 * search for files by mimetype
-	 *
-	 * @param string $mimetype
-	 * @return FileInfo[]
-	 */
-	public function searchByMime($mimetype) {
-		return $this->searchCommon('searchByMime', [$mimetype]);
-	}
-
-	/**
-	 * search for files by tag
-	 *
-	 * @param string|int $tag name or tag id
-	 * @param string $userId owner of the tags
-	 * @return FileInfo[]
-	 */
-	public function searchByTag($tag, $userId) {
-		return $this->searchCommon('searchByTag', [$tag, $userId]);
-	}
-
-	/**
-	 * @param string $method cache method
-	 * @param array $args
-	 * @return FileInfo[]
-	 */
-	private function searchCommon($method, $args) {
-		$files = [];
-		$rootLength = strlen($this->fakeRoot);
-
-		$mount = $this->getMount('');
-		$mountPoint = $mount->getMountPoint();
-		$storage = $mount->getStorage();
-		$userManager = \OC::$server->getUserManager();
-		if ($storage) {
-			$cache = $storage->getCache('');
-
-			$results = call_user_func_array([$cache, $method], $args);
-			foreach ($results as $result) {
-				if (substr($mountPoint . $result['path'], 0, $rootLength + 1) === $this->fakeRoot . '/') {
-					$internalPath = $result['path'];
-					$path = $mountPoint . $result['path'];
-					$result['path'] = substr($mountPoint . $result['path'], $rootLength);
-					$owner = $userManager->get($storage->getOwner($internalPath));
-					$files[] = new FileInfo($path, $storage, $internalPath, $result, $mount, $owner);
-				}
-			}
-
-			$mounts = Filesystem::getMountManager()->findIn($this->fakeRoot);
-			foreach ($mounts as $mount) {
-				$mountPoint = $mount->getMountPoint();
-				$storage = $mount->getStorage();
-				if ($storage) {
-					$cache = $storage->getCache('');
-
-					$relativeMountPoint = substr($mountPoint, $rootLength);
-					$results = call_user_func_array([$cache, $method], $args);
-					if ($results) {
-						foreach ($results as $result) {
-							$internalPath = $result['path'];
-							$result['path'] = rtrim($relativeMountPoint . $result['path'], '/');
-							$path = rtrim($mountPoint . $internalPath, '/');
-							$owner = $userManager->get($storage->getOwner($internalPath));
-							$files[] = new FileInfo($path, $storage, $internalPath, $result, $mount, $owner);
-						}
-					}
-				}
-			}
-		}
-		return $files;
-	}
-
-	/**
-	 * Get the owner for a file or folder
-	 *
-	 * @param string $path
-	 * @return string the user id of the owner
-	 * @throws NotFoundException
-	 */
-	public function getOwner($path) {
-		$info = $this->getFileInfo($path);
-		if (!$info) {
-			throw new NotFoundException($path . ' not found while trying to get owner');
-		}
-
-		if ($info->getOwner() === null) {
-			throw new NotFoundException($path . ' has no owner');
-		}
-
-		return $info->getOwner()->getUID();
-	}
-
-	/**
-	 * get the ETag for a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getETag($path) {
-		/**
-		 * @var Storage\Storage $storage
-		 * @var string $internalPath
-		 */
-		[$storage, $internalPath] = $this->resolvePath($path);
-		if ($storage) {
-			return $storage->getETag($internalPath);
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * Get the path of a file by id, relative to the view
-	 *
-	 * Note that the resulting path is not guarantied to be unique for the id, multiple paths can point to the same file
-	 *
-	 * @param int $id
-	 * @param int|null $storageId
-	 * @return string
-	 * @throws NotFoundException
-	 */
-	public function getPath($id, int $storageId = null) {
-		$id = (int)$id;
-		$manager = Filesystem::getMountManager();
-		$mounts = $manager->findIn($this->fakeRoot);
-		$mounts[] = $manager->find($this->fakeRoot);
-		$mounts = array_filter($mounts);
-		// reverse the array, so we start with the storage this view is in
-		// which is the most likely to contain the file we're looking for
-		$mounts = array_reverse($mounts);
-
-		// put non-shared mounts in front of the shared mount
-		// this prevents unneeded recursion into shares
-		usort($mounts, function (IMountPoint $a, IMountPoint $b) {
-			return $a instanceof SharedMount && (!$b instanceof SharedMount) ? 1 : -1;
-		});
-
-		if (!is_null($storageId)) {
-			$mounts = array_filter($mounts, function (IMountPoint $mount) use ($storageId) {
-				return $mount->getNumericStorageId() === $storageId;
-			});
-		}
-
-		foreach ($mounts as $mount) {
-			/**
-			 * @var \OC\Files\Mount\MountPoint $mount
-			 */
-			if ($mount->getStorage()) {
-				$cache = $mount->getStorage()->getCache();
-				$internalPath = $cache->getPathById($id);
-				if (is_string($internalPath)) {
-					$fullPath = $mount->getMountPoint() . $internalPath;
-					if (!is_null($path = $this->getRelativePath($fullPath))) {
-						return $path;
-					}
-				}
-			}
-		}
-		throw new NotFoundException(sprintf('File with id "%s" has not been found.', $id));
-	}
-
-	/**
-	 * @param string $path
-	 * @throws InvalidPathException
-	 */
-	private function assertPathLength($path) {
-		$maxLen = min(PHP_MAXPATHLEN, 4000);
-		// Check for the string length - performed using isset() instead of strlen()
-		// because isset() is about 5x-40x faster.
-		if (isset($path[$maxLen])) {
-			$pathLen = strlen($path);
-			throw new \OCP\Files\InvalidPathException("Path length($pathLen) exceeds max path length($maxLen): $path");
-		}
-	}
-
-	/**
-	 * check if it is allowed to move a mount point to a given target.
-	 * It is not allowed to move a mount point into a different mount point or
-	 * into an already shared folder
-	 *
-	 * @param IStorage $targetStorage
-	 * @param string $targetInternalPath
-	 * @return boolean
-	 */
-	private function targetIsNotShared(IStorage $targetStorage, string $targetInternalPath) {
-
-		// note: cannot use the view because the target is already locked
-		$fileId = (int)$targetStorage->getCache()->getId($targetInternalPath);
-		if ($fileId === -1) {
-			// target might not exist, need to check parent instead
-			$fileId = (int)$targetStorage->getCache()->getId(dirname($targetInternalPath));
-		}
-
-		// check if any of the parents were shared by the current owner (include collections)
-		$shares = \OCP\Share::getItemShared(
-			'folder',
-			$fileId,
-			\OCP\Share::FORMAT_NONE,
-			null,
-			true
-		);
-
-		if (count($shares) > 0) {
-			\OCP\Util::writeLog('files',
-				'It is not allowed to move one mount point into a shared folder',
-				ILogger::DEBUG);
-			return false;
-		}
-
-		return true;
-	}
-
-	/**
-	 * Get a fileinfo object for files that are ignored in the cache (part files)
-	 *
-	 * @param string $path
-	 * @return \OCP\Files\FileInfo
-	 */
-	private function getPartFileInfo($path) {
-		$mount = $this->getMount($path);
-		$storage = $mount->getStorage();
-		$internalPath = $mount->getInternalPath($this->getAbsolutePath($path));
-		$owner = \OC::$server->getUserManager()->get($storage->getOwner($internalPath));
-		return new FileInfo(
-			$this->getAbsolutePath($path),
-			$storage,
-			$internalPath,
-			[
-				'fileid' => null,
-				'mimetype' => $storage->getMimeType($internalPath),
-				'name' => basename($path),
-				'etag' => null,
-				'size' => $storage->filesize($internalPath),
-				'mtime' => $storage->filemtime($internalPath),
-				'encrypted' => false,
-				'permissions' => \OCP\Constants::PERMISSION_ALL
-			],
-			$mount,
-			$owner
-		);
-	}
-
-	/**
-	 * @param string $path
-	 * @param string $fileName
-	 * @throws InvalidPathException
-	 */
-	public function verifyPath($path, $fileName) {
-		try {
-			/** @type \OCP\Files\Storage $storage */
-			[$storage, $internalPath] = $this->resolvePath($path);
-			$storage->verifyPath($internalPath, $fileName);
-		} catch (ReservedWordException $ex) {
-			$l = \OC::$server->getL10N('lib');
-			throw new InvalidPathException($l->t('File name is a reserved word'));
-		} catch (InvalidCharacterInPathException $ex) {
-			$l = \OC::$server->getL10N('lib');
-			throw new InvalidPathException($l->t('File name contains at least one invalid character'));
-		} catch (FileNameTooLongException $ex) {
-			$l = \OC::$server->getL10N('lib');
-			throw new InvalidPathException($l->t('File name is too long'));
-		} catch (InvalidDirectoryException $ex) {
-			$l = \OC::$server->getL10N('lib');
-			throw new InvalidPathException($l->t('Dot files are not allowed'));
-		} catch (EmptyFileNameException $ex) {
-			$l = \OC::$server->getL10N('lib');
-			throw new InvalidPathException($l->t('Empty filename is not allowed'));
-		}
-	}
-
-	/**
-	 * get all parent folders of $path
-	 *
-	 * @param string $path
-	 * @return string[]
-	 */
-	private function getParents($path) {
-		$path = trim($path, '/');
-		if (!$path) {
-			return [];
-		}
-
-		$parts = explode('/', $path);
-
-		// remove the single file
-		array_pop($parts);
-		$result = ['/'];
-		$resultPath = '';
-		foreach ($parts as $part) {
-			if ($part) {
-				$resultPath .= '/' . $part;
-				$result[] = $resultPath;
-			}
-		}
-		return $result;
-	}
-
-	/**
-	 * Returns the mount point for which to lock
-	 *
-	 * @param string $absolutePath absolute path
-	 * @param bool $useParentMount true to return parent mount instead of whatever
-	 * is mounted directly on the given path, false otherwise
-	 * @return IMountPoint mount point for which to apply locks
-	 */
-	private function getMountForLock($absolutePath, $useParentMount = false) {
-		$mount = Filesystem::getMountManager()->find($absolutePath);
-
-		if ($useParentMount) {
-			// find out if something is mounted directly on the path
-			$internalPath = $mount->getInternalPath($absolutePath);
-			if ($internalPath === '') {
-				// resolve the parent mount instead
-				$mount = Filesystem::getMountManager()->find(dirname($absolutePath));
-			}
-		}
-
-		return $mount;
-	}
-
-	/**
-	 * Lock the given path
-	 *
-	 * @param string $path the path of the file to lock, relative to the view
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
-	 *
-	 * @return bool False if the path is excluded from locking, true otherwise
-	 * @throws LockedException if the path is already locked
-	 */
-	private function lockPath($path, $type, $lockMountPoint = false) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$absolutePath = Filesystem::normalizePath($absolutePath);
-		if (!$this->shouldLockFile($absolutePath)) {
-			return false;
-		}
-
-		$mount = $this->getMountForLock($absolutePath, $lockMountPoint);
-		if ($mount) {
-			try {
-				$storage = $mount->getStorage();
-				if ($storage && $storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-					$storage->acquireLock(
-						$mount->getInternalPath($absolutePath),
-						$type,
-						$this->lockingProvider
-					);
-				}
-			} catch (LockedException $e) {
-				// rethrow with the a human-readable path
-				throw new LockedException(
-					$this->getPathRelativeToFiles($absolutePath),
-					$e,
-					$e->getExistingLock()
-				);
-			}
-		}
-
-		return true;
-	}
-
-	/**
-	 * Change the lock type
-	 *
-	 * @param string $path the path of the file to lock, relative to the view
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
-	 *
-	 * @return bool False if the path is excluded from locking, true otherwise
-	 * @throws LockedException if the path is already locked
-	 */
-	public function changeLock($path, $type, $lockMountPoint = false) {
-		$path = Filesystem::normalizePath($path);
-		$absolutePath = $this->getAbsolutePath($path);
-		$absolutePath = Filesystem::normalizePath($absolutePath);
-		if (!$this->shouldLockFile($absolutePath)) {
-			return false;
-		}
-
-		$mount = $this->getMountForLock($absolutePath, $lockMountPoint);
-		if ($mount) {
-			try {
-				$storage = $mount->getStorage();
-				if ($storage && $storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-					$storage->changeLock(
-						$mount->getInternalPath($absolutePath),
-						$type,
-						$this->lockingProvider
-					);
-				}
-			} catch (LockedException $e) {
-				try {
-					// rethrow with the a human-readable path
-					throw new LockedException(
-						$this->getPathRelativeToFiles($absolutePath),
-						$e,
-						$e->getExistingLock()
-					);
-				} catch (\InvalidArgumentException $ex) {
-					throw new LockedException(
-						$absolutePath,
-						$ex,
-						$e->getExistingLock()
-					);
-				}
-			}
-		}
-
-		return true;
-	}
-
-	/**
-	 * Unlock the given path
-	 *
-	 * @param string $path the path of the file to unlock, relative to the view
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
-	 *
-	 * @return bool False if the path is excluded from locking, true otherwise
-	 * @throws LockedException
-	 */
-	private function unlockPath($path, $type, $lockMountPoint = false) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$absolutePath = Filesystem::normalizePath($absolutePath);
-		if (!$this->shouldLockFile($absolutePath)) {
-			return false;
-		}
-
-		$mount = $this->getMountForLock($absolutePath, $lockMountPoint);
-		if ($mount) {
-			$storage = $mount->getStorage();
-			if ($storage && $storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-				$storage->releaseLock(
-					$mount->getInternalPath($absolutePath),
-					$type,
-					$this->lockingProvider
-				);
-			}
-		}
-
-		return true;
-	}
-
-	/**
-	 * Lock a path and all its parents up to the root of the view
-	 *
-	 * @param string $path the path of the file to lock relative to the view
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
-	 *
-	 * @return bool False if the path is excluded from locking, true otherwise
-	 * @throws LockedException
-	 */
-	public function lockFile($path, $type, $lockMountPoint = false) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$absolutePath = Filesystem::normalizePath($absolutePath);
-		if (!$this->shouldLockFile($absolutePath)) {
-			return false;
-		}
-
-		$this->lockPath($path, $type, $lockMountPoint);
-
-		$parents = $this->getParents($path);
-		foreach ($parents as $parent) {
-			$this->lockPath($parent, ILockingProvider::LOCK_SHARED);
-		}
-
-		return true;
-	}
-
-	/**
-	 * Unlock a path and all its parents up to the root of the view
-	 *
-	 * @param string $path the path of the file to lock relative to the view
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
-	 *
-	 * @return bool False if the path is excluded from locking, true otherwise
-	 * @throws LockedException
-	 */
-	public function unlockFile($path, $type, $lockMountPoint = false) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$absolutePath = Filesystem::normalizePath($absolutePath);
-		if (!$this->shouldLockFile($absolutePath)) {
-			return false;
-		}
-
-		$this->unlockPath($path, $type, $lockMountPoint);
-
-		$parents = $this->getParents($path);
-		foreach ($parents as $parent) {
-			$this->unlockPath($parent, ILockingProvider::LOCK_SHARED);
-		}
-
-		return true;
-	}
-
-	/**
-	 * Only lock files in data/user/files/
-	 *
-	 * @param string $path Absolute path to the file/folder we try to (un)lock
-	 * @return bool
-	 */
-	protected function shouldLockFile($path) {
-		$path = Filesystem::normalizePath($path);
-
-		$pathSegments = explode('/', $path);
-		if (isset($pathSegments[2])) {
-			// E.g.: /username/files/path-to-file
-			return ($pathSegments[2] === 'files') && (count($pathSegments) > 3);
-		}
-
-		return strpos($path, '/appdata_') !== 0;
-	}
-
-	/**
-	 * Shortens the given absolute path to be relative to
-	 * "$user/files".
-	 *
-	 * @param string $absolutePath absolute path which is under "files"
-	 *
-	 * @return string path relative to "files" with trimmed slashes or null
-	 * if the path was NOT relative to files
-	 *
-	 * @throws \InvalidArgumentException if the given path was not under "files"
-	 * @since 8.1.0
-	 */
-	public function getPathRelativeToFiles($absolutePath) {
-		$path = Filesystem::normalizePath($absolutePath);
-		$parts = explode('/', trim($path, '/'), 3);
-		// "$user", "files", "path/to/dir"
-		if (!isset($parts[1]) || $parts[1] !== 'files') {
-			$this->logger->error(
-				'$absolutePath must be relative to "files", value is "%s"',
-				[
-					$absolutePath
-				]
-			);
-			throw new \InvalidArgumentException('$absolutePath must be relative to "files"');
-		}
-		if (isset($parts[2])) {
-			return $parts[2];
-		}
-		return '';
-	}
-
-	/**
-	 * @param string $filename
-	 * @return array
-	 * @throws \OC\User\NoUserException
-	 * @throws NotFoundException
-	 */
-	public function getUidAndFilename($filename) {
-		$info = $this->getFileInfo($filename);
-		if (!$info instanceof \OCP\Files\FileInfo) {
-			throw new NotFoundException($this->getAbsolutePath($filename) . ' not found');
-		}
-		$uid = $info->getOwner()->getUID();
-		if ($uid != \OC_User::getUser()) {
-			Filesystem::initMountPoints($uid);
-			$ownerView = new View('/' . $uid . '/files');
-			try {
-				$filename = $ownerView->getPath($info['fileid']);
-			} catch (NotFoundException $e) {
-				throw new NotFoundException('File with id ' . $info['fileid'] . ' not found for user ' . $uid);
-			}
-		}
-		return [$uid, $filename];
-	}
-
-	/**
-	 * Creates parent non-existing folders
-	 *
-	 * @param string $filePath
-	 * @return bool
-	 */
-	private function createParentDirectories($filePath) {
-		$directoryParts = explode('/', $filePath);
-		$directoryParts = array_filter($directoryParts);
-		foreach ($directoryParts as $key => $part) {
-			$currentPathElements = array_slice($directoryParts, 0, $key);
-			$currentPath = '/' . implode('/', $currentPathElements);
-			if ($this->is_file($currentPath)) {
-				return false;
-			}
-			if (!$this->file_exists($currentPath)) {
-				$this->mkdir($currentPath);
-			}
-		}
-
-		return true;
-	}
+    /** @var string */
+    private $fakeRoot = '';
+
+    /**
+     * @var \OCP\Lock\ILockingProvider
+     */
+    protected $lockingProvider;
+
+    private $lockingEnabled;
+
+    private $updaterEnabled = true;
+
+    /** @var \OC\User\Manager */
+    private $userManager;
+
+    /** @var \OCP\ILogger */
+    private $logger;
+
+    /**
+     * @param string $root
+     * @throws \Exception If $root contains an invalid path
+     */
+    public function __construct($root = '') {
+        if (is_null($root)) {
+            throw new \InvalidArgumentException('Root can\'t be null');
+        }
+        if (!Filesystem::isValidPath($root)) {
+            throw new \Exception();
+        }
+
+        $this->fakeRoot = $root;
+        $this->lockingProvider = \OC::$server->getLockingProvider();
+        $this->lockingEnabled = !($this->lockingProvider instanceof \OC\Lock\NoopLockingProvider);
+        $this->userManager = \OC::$server->getUserManager();
+        $this->logger = \OC::$server->getLogger();
+    }
+
+    public function getAbsolutePath($path = '/') {
+        if ($path === null) {
+            return null;
+        }
+        $this->assertPathLength($path);
+        if ($path === '') {
+            $path = '/';
+        }
+        if ($path[0] !== '/') {
+            $path = '/' . $path;
+        }
+        return $this->fakeRoot . $path;
+    }
+
+    /**
+     * change the root to a fake root
+     *
+     * @param string $fakeRoot
+     * @return boolean|null
+     */
+    public function chroot($fakeRoot) {
+        if (!$fakeRoot == '') {
+            if ($fakeRoot[0] !== '/') {
+                $fakeRoot = '/' . $fakeRoot;
+            }
+        }
+        $this->fakeRoot = $fakeRoot;
+    }
+
+    /**
+     * get the fake root
+     *
+     * @return string
+     */
+    public function getRoot() {
+        return $this->fakeRoot;
+    }
+
+    /**
+     * get path relative to the root of the view
+     *
+     * @param string $path
+     * @return string
+     */
+    public function getRelativePath($path) {
+        $this->assertPathLength($path);
+        if ($this->fakeRoot == '') {
+            return $path;
+        }
+
+        if (rtrim($path, '/') === rtrim($this->fakeRoot, '/')) {
+            return '/';
+        }
+
+        // missing slashes can cause wrong matches!
+        $root = rtrim($this->fakeRoot, '/') . '/';
+
+        if (strpos($path, $root) !== 0) {
+            return null;
+        } else {
+            $path = substr($path, strlen($this->fakeRoot));
+            if (strlen($path) === 0) {
+                return '/';
+            } else {
+                return $path;
+            }
+        }
+    }
+
+    /**
+     * get the mountpoint of the storage object for a path
+     * ( note: because a storage is not always mounted inside the fakeroot, the
+     * returned mountpoint is relative to the absolute root of the filesystem
+     * and does not take the chroot into account )
+     *
+     * @param string $path
+     * @return string
+     */
+    public function getMountPoint($path) {
+        return Filesystem::getMountPoint($this->getAbsolutePath($path));
+    }
+
+    /**
+     * get the mountpoint of the storage object for a path
+     * ( note: because a storage is not always mounted inside the fakeroot, the
+     * returned mountpoint is relative to the absolute root of the filesystem
+     * and does not take the chroot into account )
+     *
+     * @param string $path
+     * @return \OCP\Files\Mount\IMountPoint
+     */
+    public function getMount($path) {
+        return Filesystem::getMountManager()->find($this->getAbsolutePath($path));
+    }
+
+    /**
+     * resolve a path to a storage and internal path
+     *
+     * @param string $path
+     * @return array an array consisting of the storage and the internal path
+     */
+    public function resolvePath($path) {
+        $a = $this->getAbsolutePath($path);
+        $p = Filesystem::normalizePath($a);
+        return Filesystem::resolvePath($p);
+    }
+
+    /**
+     * return the path to a local version of the file
+     * we need this because we can't know if a file is stored local or not from
+     * outside the filestorage and for some purposes a local file is needed
+     *
+     * @param string $path
+     * @return string
+     */
+    public function getLocalFile($path) {
+        $parent = substr($path, 0, strrpos($path, '/'));
+        $path = $this->getAbsolutePath($path);
+        [$storage, $internalPath] = Filesystem::resolvePath($path);
+        if (Filesystem::isValidPath($parent) and $storage) {
+            return $storage->getLocalFile($internalPath);
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * @param string $path
+     * @return string
+     */
+    public function getLocalFolder($path) {
+        $parent = substr($path, 0, strrpos($path, '/'));
+        $path = $this->getAbsolutePath($path);
+        [$storage, $internalPath] = Filesystem::resolvePath($path);
+        if (Filesystem::isValidPath($parent) and $storage) {
+            return $storage->getLocalFolder($internalPath);
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * the following functions operate with arguments and return values identical
+     * to those of their PHP built-in equivalents. Mostly they are merely wrappers
+     * for \OC\Files\Storage\Storage via basicOperation().
+     */
+    public function mkdir($path) {
+        return $this->basicOperation('mkdir', $path, ['create', 'write']);
+    }
+
+    /**
+     * remove mount point
+     *
+     * @param IMountPoint $mount
+     * @param string $path relative to data/
+     * @return boolean
+     */
+    protected function removeMount($mount, $path) {
+        if ($mount instanceof MoveableMount) {
+            // cut of /user/files to get the relative path to data/user/files
+            $pathParts = explode('/', $path, 4);
+            $relPath = '/' . $pathParts[3];
+            $this->lockFile($relPath, ILockingProvider::LOCK_SHARED, true);
+            \OC_Hook::emit(
+                Filesystem::CLASSNAME, "umount",
+                [Filesystem::signal_param_path => $relPath]
+            );
+            $this->changeLock($relPath, ILockingProvider::LOCK_EXCLUSIVE, true);
+            $result = $mount->removeMount();
+            $this->changeLock($relPath, ILockingProvider::LOCK_SHARED, true);
+            if ($result) {
+                \OC_Hook::emit(
+                    Filesystem::CLASSNAME, "post_umount",
+                    [Filesystem::signal_param_path => $relPath]
+                );
+            }
+            $this->unlockFile($relPath, ILockingProvider::LOCK_SHARED, true);
+            return $result;
+        } else {
+            // do not allow deleting the storage's root / the mount point
+            // because for some storages it might delete the whole contents
+            // but isn't supposed to work that way
+            return false;
+        }
+    }
+
+    public function disableCacheUpdate() {
+        $this->updaterEnabled = false;
+    }
+
+    public function enableCacheUpdate() {
+        $this->updaterEnabled = true;
+    }
+
+    protected function writeUpdate(Storage $storage, $internalPath, $time = null) {
+        if ($this->updaterEnabled) {
+            if (is_null($time)) {
+                $time = time();
+            }
+            $storage->getUpdater()->update($internalPath, $time);
+        }
+    }
+
+    protected function removeUpdate(Storage $storage, $internalPath) {
+        if ($this->updaterEnabled) {
+            $storage->getUpdater()->remove($internalPath);
+        }
+    }
+
+    protected function renameUpdate(Storage $sourceStorage, Storage $targetStorage, $sourceInternalPath, $targetInternalPath) {
+        if ($this->updaterEnabled) {
+            $targetStorage->getUpdater()->renameFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+        }
+    }
+
+    /**
+     * @param string $path
+     * @return bool|mixed
+     */
+    public function rmdir($path) {
+        $absolutePath = $this->getAbsolutePath($path);
+        $mount = Filesystem::getMountManager()->find($absolutePath);
+        if ($mount->getInternalPath($absolutePath) === '') {
+            return $this->removeMount($mount, $absolutePath);
+        }
+        if ($this->is_dir($path)) {
+            $result = $this->basicOperation('rmdir', $path, ['delete']);
+        } else {
+            $result = false;
+        }
+
+        if (!$result && !$this->file_exists($path)) { //clear ghost files from the cache on delete
+            $storage = $mount->getStorage();
+            $internalPath = $mount->getInternalPath($absolutePath);
+            $storage->getUpdater()->remove($internalPath);
+        }
+        return $result;
+    }
+
+    /**
+     * @param string $path
+     * @return resource
+     */
+    public function opendir($path) {
+        return $this->basicOperation('opendir', $path, ['read']);
+    }
+
+    /**
+     * @param string $path
+     * @return bool|mixed
+     */
+    public function is_dir($path) {
+        if ($path == '/') {
+            return true;
+        }
+        return $this->basicOperation('is_dir', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return bool|mixed
+     */
+    public function is_file($path) {
+        if ($path == '/') {
+            return false;
+        }
+        return $this->basicOperation('is_file', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return mixed
+     */
+    public function stat($path) {
+        return $this->basicOperation('stat', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return mixed
+     */
+    public function filetype($path) {
+        return $this->basicOperation('filetype', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return mixed
+     */
+    public function filesize($path) {
+        return $this->basicOperation('filesize', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return bool|mixed
+     * @throws \OCP\Files\InvalidPathException
+     */
+    public function readfile($path) {
+        $this->assertPathLength($path);
+        if (ob_get_level()) {
+            ob_end_clean();
+        }
+        $handle = $this->fopen($path, 'rb');
+        if ($handle) {
+            $chunkSize = 524288; // 512 kB chunks
+            while (!feof($handle)) {
+                echo fread($handle, $chunkSize);
+                flush();
+            }
+            fclose($handle);
+            return $this->filesize($path);
+        }
+        return false;
+    }
+
+    /**
+     * @param string $path
+     * @param int $from
+     * @param int $to
+     * @return bool|mixed
+     * @throws \OCP\Files\InvalidPathException
+     * @throws \OCP\Files\UnseekableException
+     */
+    public function readfilePart($path, $from, $to) {
+        $this->assertPathLength($path);
+        if (ob_get_level()) {
+            ob_end_clean();
+        }
+        $handle = $this->fopen($path, 'rb');
+        if ($handle) {
+            $chunkSize = 524288; // 512 kB chunks
+            $startReading = true;
+
+            if ($from !== 0 && $from !== '0' && fseek($handle, $from) !== 0) {
+                // forward file handle via chunked fread because fseek seem to have failed
+
+                $end = $from + 1;
+                while (!feof($handle) && ftell($handle) < $end && ftell($handle) !== $from) {
+                    $len = $from - ftell($handle);
+                    if ($len > $chunkSize) {
+                        $len = $chunkSize;
+                    }
+                    $result = fread($handle, $len);
+
+                    if ($result === false) {
+                        $startReading = false;
+                        break;
+                    }
+                }
+            }
+
+            if ($startReading) {
+                $end = $to + 1;
+                while (!feof($handle) && ftell($handle) < $end) {
+                    $len = $end - ftell($handle);
+                    if ($len > $chunkSize) {
+                        $len = $chunkSize;
+                    }
+                    echo fread($handle, $len);
+                    flush();
+                }
+                return ftell($handle) - $from;
+            }
+
+            throw new \OCP\Files\UnseekableException('fseek error');
+        }
+        return false;
+    }
+
+    /**
+     * @param string $path
+     * @return mixed
+     */
+    public function isCreatable($path) {
+        return $this->basicOperation('isCreatable', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return mixed
+     */
+    public function isReadable($path) {
+        return $this->basicOperation('isReadable', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return mixed
+     */
+    public function isUpdatable($path) {
+        return $this->basicOperation('isUpdatable', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return bool|mixed
+     */
+    public function isDeletable($path) {
+        $absolutePath = $this->getAbsolutePath($path);
+        $mount = Filesystem::getMountManager()->find($absolutePath);
+        if ($mount->getInternalPath($absolutePath) === '') {
+            return $mount instanceof MoveableMount;
+        }
+        return $this->basicOperation('isDeletable', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return mixed
+     */
+    public function isSharable($path) {
+        return $this->basicOperation('isSharable', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return bool|mixed
+     */
+    public function file_exists($path) {
+        if ($path == '/') {
+            return true;
+        }
+        return $this->basicOperation('file_exists', $path);
+    }
+
+    /**
+     * @param string $path
+     * @return mixed
+     */
+    public function filemtime($path) {
+        return $this->basicOperation('filemtime', $path);
+    }
+
+    /**
+     * @param string $path
+     * @param int|string $mtime
+     * @return bool
+     */
+    public function touch($path, $mtime = null) {
+        if (!is_null($mtime) and !is_numeric($mtime)) {
+            $mtime = strtotime($mtime);
+        }
+
+        $hooks = ['touch'];
+
+        if (!$this->file_exists($path)) {
+            $hooks[] = 'create';
+            $hooks[] = 'write';
+        }
+        try {
+            $result = $this->basicOperation('touch', $path, $hooks, $mtime);
+        } catch (\Exception $e) {
+            $this->logger->logException($e, ['level' => ILogger::INFO, 'message' => 'Error while setting modified time']);
+            $result = false;
+        }
+        if (!$result) {
+            // If create file fails because of permissions on external storage like SMB folders,
+            // check file exists and return false if not.
+            if (!$this->file_exists($path)) {
+                return false;
+            }
+            if (is_null($mtime)) {
+                $mtime = time();
+            }
+            //if native touch fails, we emulate it by changing the mtime in the cache
+            $this->putFileInfo($path, ['mtime' => floor($mtime)]);
+        }
+        return true;
+    }
+
+    /**
+     * @param string $path
+     * @return mixed
+     * @throws LockedException
+     */
+    public function file_get_contents($path) {
+        return $this->basicOperation('file_get_contents', $path, ['read']);
+    }
+
+    /**
+     * @param bool $exists
+     * @param string $path
+     * @param bool $run
+     */
+    protected function emit_file_hooks_pre($exists, $path, &$run) {
+        if (!$exists) {
+            \OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_create, [
+                Filesystem::signal_param_path => $this->getHookPath($path),
+                Filesystem::signal_param_run => &$run,
+            ]);
+        } else {
+            \OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_update, [
+                Filesystem::signal_param_path => $this->getHookPath($path),
+                Filesystem::signal_param_run => &$run,
+            ]);
+        }
+        \OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_write, [
+            Filesystem::signal_param_path => $this->getHookPath($path),
+            Filesystem::signal_param_run => &$run,
+        ]);
+    }
+
+    /**
+     * @param bool $exists
+     * @param string $path
+     */
+    protected function emit_file_hooks_post($exists, $path) {
+        if (!$exists) {
+            \OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_post_create, [
+                Filesystem::signal_param_path => $this->getHookPath($path),
+            ]);
+        } else {
+            \OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_post_update, [
+                Filesystem::signal_param_path => $this->getHookPath($path),
+            ]);
+        }
+        \OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_post_write, [
+            Filesystem::signal_param_path => $this->getHookPath($path),
+        ]);
+    }
+
+    /**
+     * @param string $path
+     * @param string|resource $data
+     * @return bool|mixed
+     * @throws LockedException
+     */
+    public function file_put_contents($path, $data) {
+        if (is_resource($data)) { //not having to deal with streams in file_put_contents makes life easier
+            $absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
+            if (Filesystem::isValidPath($path)
+                and !Filesystem::isFileBlacklisted($path)
+            ) {
+                $path = $this->getRelativePath($absolutePath);
+
+                $this->lockFile($path, ILockingProvider::LOCK_SHARED);
+
+                $exists = $this->file_exists($path);
+                $run = true;
+                if ($this->shouldEmitHooks($path)) {
+                    $this->emit_file_hooks_pre($exists, $path, $run);
+                }
+                if (!$run) {
+                    $this->unlockFile($path, ILockingProvider::LOCK_SHARED);
+                    return false;
+                }
+
+                try {
+                    $this->changeLock($path, ILockingProvider::LOCK_EXCLUSIVE);
+                } catch (\Exception $e) {
+                    // Release the shared lock before throwing.
+                    $this->unlockFile($path, ILockingProvider::LOCK_SHARED);
+                    throw $e;
+                }
+
+                /** @var \OC\Files\Storage\Storage $storage */
+                [$storage, $internalPath] = $this->resolvePath($path);
+                $target = $storage->fopen($internalPath, 'w');
+                if ($target) {
+                    [, $result] = \OC_Helper::streamCopy($data, $target);
+                    fclose($target);
+                    fclose($data);
+
+                    $this->writeUpdate($storage, $internalPath);
+
+                    $this->changeLock($path, ILockingProvider::LOCK_SHARED);
+
+                    if ($this->shouldEmitHooks($path) && $result !== false) {
+                        $this->emit_file_hooks_post($exists, $path);
+                    }
+                    $this->unlockFile($path, ILockingProvider::LOCK_SHARED);
+                    return $result;
+                } else {
+                    $this->unlockFile($path, ILockingProvider::LOCK_EXCLUSIVE);
+                    return false;
+                }
+            } else {
+                return false;
+            }
+        } else {
+            $hooks = $this->file_exists($path) ? ['update', 'write'] : ['create', 'write'];
+            return $this->basicOperation('file_put_contents', $path, $hooks, $data);
+        }
+    }
+
+    /**
+     * @param string $path
+     * @return bool|mixed
+     */
+    public function unlink($path) {
+        if ($path === '' || $path === '/') {
+            // do not allow deleting the root
+            return false;
+        }
+        $postFix = (substr($path, -1) === '/') ? '/' : '';
+        $absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
+        $mount = Filesystem::getMountManager()->find($absolutePath . $postFix);
+        if ($mount->getInternalPath($absolutePath) === '') {
+            return $this->removeMount($mount, $absolutePath);
+        }
+        if ($this->is_dir($path)) {
+            $result = $this->basicOperation('rmdir', $path, ['delete']);
+        } else {
+            $result = $this->basicOperation('unlink', $path, ['delete']);
+        }
+        if (!$result && !$this->file_exists($path)) { //clear ghost files from the cache on delete
+            $storage = $mount->getStorage();
+            $internalPath = $mount->getInternalPath($absolutePath);
+            $storage->getUpdater()->remove($internalPath);
+            return true;
+        } else {
+            return $result;
+        }
+    }
+
+    /**
+     * @param string $directory
+     * @return bool|mixed
+     */
+    public function deleteAll($directory) {
+        return $this->rmdir($directory);
+    }
+
+    /**
+     * Rename/move a file or folder from the source path to target path.
+     *
+     * @param string $path1 source path
+     * @param string $path2 target path
+     *
+     * @return bool|mixed
+     * @throws LockedException
+     */
+    public function rename($path1, $path2) {
+        $absolutePath1 = Filesystem::normalizePath($this->getAbsolutePath($path1));
+        $absolutePath2 = Filesystem::normalizePath($this->getAbsolutePath($path2));
+        $result = false;
+        if (
+            Filesystem::isValidPath($path2)
+            and Filesystem::isValidPath($path1)
+            and !Filesystem::isFileBlacklisted($path2)
+        ) {
+            $path1 = $this->getRelativePath($absolutePath1);
+            $path2 = $this->getRelativePath($absolutePath2);
+            $exists = $this->file_exists($path2);
+
+            if ($path1 == null or $path2 == null) {
+                return false;
+            }
+
+            $this->lockFile($path1, ILockingProvider::LOCK_SHARED, true);
+            try {
+                $this->lockFile($path2, ILockingProvider::LOCK_SHARED, true);
+
+                $run = true;
+                if ($this->shouldEmitHooks($path1) && (Cache\Scanner::isPartialFile($path1) && !Cache\Scanner::isPartialFile($path2))) {
+                    // if it was a rename from a part file to a regular file it was a write and not a rename operation
+                    $this->emit_file_hooks_pre($exists, $path2, $run);
+                } elseif ($this->shouldEmitHooks($path1)) {
+                    \OC_Hook::emit(
+                        Filesystem::CLASSNAME, Filesystem::signal_rename,
+                        [
+                            Filesystem::signal_param_oldpath => $this->getHookPath($path1),
+                            Filesystem::signal_param_newpath => $this->getHookPath($path2),
+                            Filesystem::signal_param_run => &$run
+                        ]
+                    );
+                }
+                if ($run) {
+                    $this->verifyPath(dirname($path2), basename($path2));
+
+                    $manager = Filesystem::getMountManager();
+                    $mount1 = $this->getMount($path1);
+                    $mount2 = $this->getMount($path2);
+                    $storage1 = $mount1->getStorage();
+                    $storage2 = $mount2->getStorage();
+                    $internalPath1 = $mount1->getInternalPath($absolutePath1);
+                    $internalPath2 = $mount2->getInternalPath($absolutePath2);
+
+                    $this->changeLock($path1, ILockingProvider::LOCK_EXCLUSIVE, true);
+                    try {
+                        $this->changeLock($path2, ILockingProvider::LOCK_EXCLUSIVE, true);
+
+                        if ($internalPath1 === '') {
+                            if ($mount1 instanceof MoveableMount) {
+                                $sourceParentMount = $this->getMount(dirname($path1));
+                                if ($sourceParentMount === $mount2 && $this->targetIsNotShared($storage2, $internalPath2)) {
+                                    /**
+                                     * @var \OC\Files\Mount\MountPoint | \OC\Files\Mount\MoveableMount $mount1
+                                     */
+                                    $sourceMountPoint = $mount1->getMountPoint();
+                                    $result = $mount1->moveMount($absolutePath2);
+                                    $manager->moveMount($sourceMountPoint, $mount1->getMountPoint());
+                                } else {
+                                    $result = false;
+                                }
+                            } else {
+                                $result = false;
+                            }
+                            // moving a file/folder within the same mount point
+                        } elseif ($storage1 === $storage2) {
+                            if ($storage1) {
+                                $result = $storage1->rename($internalPath1, $internalPath2);
+                            } else {
+                                $result = false;
+                            }
+                            // moving a file/folder between storages (from $storage1 to $storage2)
+                        } else {
+                            $result = $storage2->moveFromStorage($storage1, $internalPath1, $internalPath2);
+                        }
+
+                        if ((Cache\Scanner::isPartialFile($path1) && !Cache\Scanner::isPartialFile($path2)) && $result !== false) {
+                            // if it was a rename from a part file to a regular file it was a write and not a rename operation
+                            $this->writeUpdate($storage2, $internalPath2);
+                        } elseif ($result) {
+                            if ($internalPath1 !== '') { // don't do a cache update for moved mounts
+                                $this->renameUpdate($storage1, $storage2, $internalPath1, $internalPath2);
+                            }
+                        }
+                    } catch (\Exception $e) {
+                        throw $e;
+                    } finally {
+                        $this->changeLock($path1, ILockingProvider::LOCK_SHARED, true);
+                        $this->changeLock($path2, ILockingProvider::LOCK_SHARED, true);
+                    }
+
+                    if ((Cache\Scanner::isPartialFile($path1) && !Cache\Scanner::isPartialFile($path2)) && $result !== false) {
+                        if ($this->shouldEmitHooks()) {
+                            $this->emit_file_hooks_post($exists, $path2);
+                        }
+                    } elseif ($result) {
+                        if ($this->shouldEmitHooks($path1) and $this->shouldEmitHooks($path2)) {
+                            \OC_Hook::emit(
+                                Filesystem::CLASSNAME,
+                                Filesystem::signal_post_rename,
+                                [
+                                    Filesystem::signal_param_oldpath => $this->getHookPath($path1),
+                                    Filesystem::signal_param_newpath => $this->getHookPath($path2)
+                                ]
+                            );
+                        }
+                    }
+                }
+            } catch (\Exception $e) {
+                throw $e;
+            } finally {
+                $this->unlockFile($path1, ILockingProvider::LOCK_SHARED, true);
+                $this->unlockFile($path2, ILockingProvider::LOCK_SHARED, true);
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * Copy a file/folder from the source path to target path
+     *
+     * @param string $path1 source path
+     * @param string $path2 target path
+     * @param bool $preserveMtime whether to preserve mtime on the copy
+     *
+     * @return bool|mixed
+     */
+    public function copy($path1, $path2, $preserveMtime = false) {
+        $absolutePath1 = Filesystem::normalizePath($this->getAbsolutePath($path1));
+        $absolutePath2 = Filesystem::normalizePath($this->getAbsolutePath($path2));
+        $result = false;
+        if (
+            Filesystem::isValidPath($path2)
+            and Filesystem::isValidPath($path1)
+            and !Filesystem::isFileBlacklisted($path2)
+        ) {
+            $path1 = $this->getRelativePath($absolutePath1);
+            $path2 = $this->getRelativePath($absolutePath2);
+
+            if ($path1 == null or $path2 == null) {
+                return false;
+            }
+            $run = true;
+
+            $this->lockFile($path2, ILockingProvider::LOCK_SHARED);
+            $this->lockFile($path1, ILockingProvider::LOCK_SHARED);
+            $lockTypePath1 = ILockingProvider::LOCK_SHARED;
+            $lockTypePath2 = ILockingProvider::LOCK_SHARED;
+
+            try {
+                $exists = $this->file_exists($path2);
+                if ($this->shouldEmitHooks()) {
+                    \OC_Hook::emit(
+                        Filesystem::CLASSNAME,
+                        Filesystem::signal_copy,
+                        [
+                            Filesystem::signal_param_oldpath => $this->getHookPath($path1),
+                            Filesystem::signal_param_newpath => $this->getHookPath($path2),
+                            Filesystem::signal_param_run => &$run
+                        ]
+                    );
+                    $this->emit_file_hooks_pre($exists, $path2, $run);
+                }
+                if ($run) {
+                    $mount1 = $this->getMount($path1);
+                    $mount2 = $this->getMount($path2);
+                    $storage1 = $mount1->getStorage();
+                    $internalPath1 = $mount1->getInternalPath($absolutePath1);
+                    $storage2 = $mount2->getStorage();
+                    $internalPath2 = $mount2->getInternalPath($absolutePath2);
+
+                    $this->changeLock($path2, ILockingProvider::LOCK_EXCLUSIVE);
+                    $lockTypePath2 = ILockingProvider::LOCK_EXCLUSIVE;
+
+                    if ($mount1->getMountPoint() == $mount2->getMountPoint()) {
+                        if ($storage1) {
+                            $result = $storage1->copy($internalPath1, $internalPath2);
+                        } else {
+                            $result = false;
+                        }
+                    } else {
+                        $result = $storage2->copyFromStorage($storage1, $internalPath1, $internalPath2);
+                    }
+
+                    $this->writeUpdate($storage2, $internalPath2);
+
+                    $this->changeLock($path2, ILockingProvider::LOCK_SHARED);
+                    $lockTypePath2 = ILockingProvider::LOCK_SHARED;
+
+                    if ($this->shouldEmitHooks() && $result !== false) {
+                        \OC_Hook::emit(
+                            Filesystem::CLASSNAME,
+                            Filesystem::signal_post_copy,
+                            [
+                                Filesystem::signal_param_oldpath => $this->getHookPath($path1),
+                                Filesystem::signal_param_newpath => $this->getHookPath($path2)
+                            ]
+                        );
+                        $this->emit_file_hooks_post($exists, $path2);
+                    }
+                }
+            } catch (\Exception $e) {
+                $this->unlockFile($path2, $lockTypePath2);
+                $this->unlockFile($path1, $lockTypePath1);
+                throw $e;
+            }
+
+            $this->unlockFile($path2, $lockTypePath2);
+            $this->unlockFile($path1, $lockTypePath1);
+        }
+        return $result;
+    }
+
+    /**
+     * @param string $path
+     * @param string $mode 'r' or 'w'
+     * @return resource
+     * @throws LockedException
+     */
+    public function fopen($path, $mode) {
+        $mode = str_replace('b', '', $mode); // the binary flag is a windows only feature which we do not support
+        $hooks = [];
+        switch ($mode) {
+            case 'r':
+                $hooks[] = 'read';
+                break;
+            case 'r+':
+            case 'w+':
+            case 'x+':
+            case 'a+':
+                $hooks[] = 'read';
+                $hooks[] = 'write';
+                break;
+            case 'w':
+            case 'x':
+            case 'a':
+                $hooks[] = 'write';
+                break;
+            default:
+                \OCP\Util::writeLog('core', 'invalid mode (' . $mode . ') for ' . $path, ILogger::ERROR);
+        }
+
+        if ($mode !== 'r' && $mode !== 'w') {
+            \OC::$server->getLogger()->info('Trying to open a file with a mode other than "r" or "w" can cause severe performance issues with some backends');
+        }
+
+        return $this->basicOperation('fopen', $path, $hooks, $mode);
+    }
+
+    /**
+     * @param string $path
+     * @return bool|string
+     * @throws \OCP\Files\InvalidPathException
+     */
+    public function toTmpFile($path) {
+        $this->assertPathLength($path);
+        if (Filesystem::isValidPath($path)) {
+            $source = $this->fopen($path, 'r');
+            if ($source) {
+                $extension = pathinfo($path, PATHINFO_EXTENSION);
+                $tmpFile = \OC::$server->getTempManager()->getTemporaryFile($extension);
+                file_put_contents($tmpFile, $source);
+                return $tmpFile;
+            } else {
+                return false;
+            }
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * @param string $tmpFile
+     * @param string $path
+     * @return bool|mixed
+     * @throws \OCP\Files\InvalidPathException
+     */
+    public function fromTmpFile($tmpFile, $path) {
+        $this->assertPathLength($path);
+        if (Filesystem::isValidPath($path)) {
+
+            // Get directory that the file is going into
+            $filePath = dirname($path);
+
+            // Create the directories if any
+            if (!$this->file_exists($filePath)) {
+                $result = $this->createParentDirectories($filePath);
+                if ($result === false) {
+                    return false;
+                }
+            }
+
+            $source = fopen($tmpFile, 'r');
+            if ($source) {
+                $result = $this->file_put_contents($path, $source);
+                // $this->file_put_contents() might have already closed
+                // the resource, so we check it, before trying to close it
+                // to avoid messages in the error log.
+                if (is_resource($source)) {
+                    fclose($source);
+                }
+                unlink($tmpFile);
+                return $result;
+            } else {
+                return false;
+            }
+        } else {
+            return false;
+        }
+    }
+
+
+    /**
+     * @param string $path
+     * @return mixed
+     * @throws \OCP\Files\InvalidPathException
+     */
+    public function getMimeType($path) {
+        $this->assertPathLength($path);
+        return $this->basicOperation('getMimeType', $path);
+    }
+
+    /**
+     * @param string $type
+     * @param string $path
+     * @param bool $raw
+     * @return bool|string
+     */
+    public function hash($type, $path, $raw = false) {
+        $postFix = (substr($path, -1) === '/') ? '/' : '';
+        $absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
+        if (Filesystem::isValidPath($path)) {
+            $path = $this->getRelativePath($absolutePath);
+            if ($path == null) {
+                return false;
+            }
+            if ($this->shouldEmitHooks($path)) {
+                \OC_Hook::emit(
+                    Filesystem::CLASSNAME,
+                    Filesystem::signal_read,
+                    [Filesystem::signal_param_path => $this->getHookPath($path)]
+                );
+            }
+            /** @var Storage|null $storage */
+            [$storage, $internalPath] = Filesystem::resolvePath($absolutePath . $postFix);
+            if ($storage) {
+                return $storage->hash($type, $internalPath, $raw);
+            }
+        }
+        return false;
+    }
+
+    /**
+     * @param string $path
+     * @return mixed
+     * @throws \OCP\Files\InvalidPathException
+     */
+    public function free_space($path = '/') {
+        $this->assertPathLength($path);
+        $result = $this->basicOperation('free_space', $path);
+        if ($result === null) {
+            throw new InvalidPathException();
+        }
+        return $result;
+    }
+
+    /**
+     * abstraction layer for basic filesystem functions: wrapper for \OC\Files\Storage\Storage
+     *
+     * @param string $operation
+     * @param string $path
+     * @param array $hooks (optional)
+     * @param mixed $extraParam (optional)
+     * @return mixed
+     * @throws LockedException
+     *
+     * This method takes requests for basic filesystem functions (e.g. reading & writing
+     * files), processes hooks and proxies, sanitises paths, and finally passes them on to
+     * \OC\Files\Storage\Storage for delegation to a storage backend for execution
+     */
+    private function basicOperation($operation, $path, $hooks = [], $extraParam = null) {
+        $postFix = (substr($path, -1) === '/') ? '/' : '';
+        $absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
+        if (Filesystem::isValidPath($path)
+            and !Filesystem::isFileBlacklisted($path)
+        ) {
+            $path = $this->getRelativePath($absolutePath);
+            if ($path == null) {
+                return false;
+            }
+
+            if (in_array('write', $hooks) || in_array('delete', $hooks) || in_array('read', $hooks)) {
+                // always a shared lock during pre-hooks so the hook can read the file
+                $this->lockFile($path, ILockingProvider::LOCK_SHARED);
+            }
+
+            $run = $this->runHooks($hooks, $path);
+            /** @var \OC\Files\Storage\Storage $storage */
+            [$storage, $internalPath] = Filesystem::resolvePath($absolutePath . $postFix);
+            if ($run and $storage) {
+                if (in_array('write', $hooks) || in_array('delete', $hooks)) {
+                    try {
+                        $this->changeLock($path, ILockingProvider::LOCK_EXCLUSIVE);
+                    } catch (LockedException $e) {
+                        // release the shared lock we acquired before quiting
+                        $this->unlockFile($path, ILockingProvider::LOCK_SHARED);
+                        throw $e;
+                    }
+                }
+                try {
+                    if (!is_null($extraParam)) {
+                        $result = $storage->$operation($internalPath, $extraParam);
+                    } else {
+                        $result = $storage->$operation($internalPath);
+                    }
+                } catch (\Exception $e) {
+                    if (in_array('write', $hooks) || in_array('delete', $hooks)) {
+                        $this->unlockFile($path, ILockingProvider::LOCK_EXCLUSIVE);
+                    } elseif (in_array('read', $hooks)) {
+                        $this->unlockFile($path, ILockingProvider::LOCK_SHARED);
+                    }
+                    throw $e;
+                }
+
+                if ($result && in_array('delete', $hooks) and $result) {
+                    $this->removeUpdate($storage, $internalPath);
+                }
+                if ($result && in_array('write', $hooks, true) && $operation !== 'fopen' && $operation !== 'touch') {
+                    $this->writeUpdate($storage, $internalPath);
+                }
+                if ($result && in_array('touch', $hooks)) {
+                    $this->writeUpdate($storage, $internalPath, $extraParam);
+                }
+
+                if ((in_array('write', $hooks) || in_array('delete', $hooks)) && ($operation !== 'fopen' || $result === false)) {
+                    $this->changeLock($path, ILockingProvider::LOCK_SHARED);
+                }
+
+                $unlockLater = false;
+                if ($this->lockingEnabled && $operation === 'fopen' && is_resource($result)) {
+                    $unlockLater = true;
+                    // make sure our unlocking callback will still be called if connection is aborted
+                    ignore_user_abort(true);
+                    $result = CallbackWrapper::wrap($result, null, null, function () use ($hooks, $path) {
+                        if (in_array('write', $hooks)) {
+                            $this->unlockFile($path, ILockingProvider::LOCK_EXCLUSIVE);
+                        } elseif (in_array('read', $hooks)) {
+                            $this->unlockFile($path, ILockingProvider::LOCK_SHARED);
+                        }
+                    });
+                }
+
+                if ($this->shouldEmitHooks($path) && $result !== false) {
+                    if ($operation != 'fopen') { //no post hooks for fopen, the file stream is still open
+                        $this->runHooks($hooks, $path, true);
+                    }
+                }
+
+                if (!$unlockLater
+                    && (in_array('write', $hooks) || in_array('delete', $hooks) || in_array('read', $hooks))
+                ) {
+                    $this->unlockFile($path, ILockingProvider::LOCK_SHARED);
+                }
+                return $result;
+            } else {
+                $this->unlockFile($path, ILockingProvider::LOCK_SHARED);
+            }
+        }
+        return null;
+    }
+
+    /**
+     * get the path relative to the default root for hook usage
+     *
+     * @param string $path
+     * @return string
+     */
+    private function getHookPath($path) {
+        if (!Filesystem::getView()) {
+            return $path;
+        }
+        return Filesystem::getView()->getRelativePath($this->getAbsolutePath($path));
+    }
+
+    private function shouldEmitHooks($path = '') {
+        if ($path && Cache\Scanner::isPartialFile($path)) {
+            return false;
+        }
+        if (!Filesystem::$loaded) {
+            return false;
+        }
+        $defaultRoot = Filesystem::getRoot();
+        if ($defaultRoot === null) {
+            return false;
+        }
+        if ($this->fakeRoot === $defaultRoot) {
+            return true;
+        }
+        $fullPath = $this->getAbsolutePath($path);
+
+        if ($fullPath === $defaultRoot) {
+            return true;
+        }
+
+        return (strlen($fullPath) > strlen($defaultRoot)) && (substr($fullPath, 0, strlen($defaultRoot) + 1) === $defaultRoot . '/');
+    }
+
+    /**
+     * @param string[] $hooks
+     * @param string $path
+     * @param bool $post
+     * @return bool
+     */
+    private function runHooks($hooks, $path, $post = false) {
+        $relativePath = $path;
+        $path = $this->getHookPath($path);
+        $prefix = $post ? 'post_' : '';
+        $run = true;
+        if ($this->shouldEmitHooks($relativePath)) {
+            foreach ($hooks as $hook) {
+                if ($hook != 'read') {
+                    \OC_Hook::emit(
+                        Filesystem::CLASSNAME,
+                        $prefix . $hook,
+                        [
+                            Filesystem::signal_param_run => &$run,
+                            Filesystem::signal_param_path => $path
+                        ]
+                    );
+                } elseif (!$post) {
+                    \OC_Hook::emit(
+                        Filesystem::CLASSNAME,
+                        $prefix . $hook,
+                        [
+                            Filesystem::signal_param_path => $path
+                        ]
+                    );
+                }
+            }
+        }
+        return $run;
+    }
+
+    /**
+     * check if a file or folder has been updated since $time
+     *
+     * @param string $path
+     * @param int $time
+     * @return bool
+     */
+    public function hasUpdated($path, $time) {
+        return $this->basicOperation('hasUpdated', $path, [], $time);
+    }
+
+    /**
+     * @param string $ownerId
+     * @return \OC\User\User
+     */
+    private function getUserObjectForOwner($ownerId) {
+        $owner = $this->userManager->get($ownerId);
+        if ($owner instanceof IUser) {
+            return $owner;
+        } else {
+            return new User($ownerId, null, \OC::$server->getEventDispatcher());
+        }
+    }
+
+    /**
+     * Get file info from cache
+     *
+     * If the file is not in cached it will be scanned
+     * If the file has changed on storage the cache will be updated
+     *
+     * @param \OC\Files\Storage\Storage $storage
+     * @param string $internalPath
+     * @param string $relativePath
+     * @return ICacheEntry|bool
+     */
+    private function getCacheEntry($storage, $internalPath, $relativePath) {
+        $cache = $storage->getCache($internalPath);
+        $data = $cache->get($internalPath);
+        $watcher = $storage->getWatcher($internalPath);
+
+        try {
+            // if the file is not in the cache or needs to be updated, trigger the scanner and reload the data
+            if (!$data || (isset($data['size']) && $data['size'] === -1)) {
+                if (!$storage->file_exists($internalPath)) {
+                    return false;
+                }
+                // don't need to get a lock here since the scanner does it's own locking
+                $scanner = $storage->getScanner($internalPath);
+                $scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW);
+                $data = $cache->get($internalPath);
+            } elseif (!Cache\Scanner::isPartialFile($internalPath) && $watcher->needsUpdate($internalPath, $data)) {
+                $this->lockFile($relativePath, ILockingProvider::LOCK_SHARED);
+                $watcher->update($internalPath, $data);
+                $storage->getPropagator()->propagateChange($internalPath, time());
+                $data = $cache->get($internalPath);
+                $this->unlockFile($relativePath, ILockingProvider::LOCK_SHARED);
+            }
+        } catch (LockedException $e) {
+            // if the file is locked we just use the old cache info
+        }
+
+        return $data;
+    }
+
+    /**
+     * get the filesystem info
+     *
+     * @param string $path
+     * @param boolean|string $includeMountPoints true to add mountpoint sizes,
+     * 'ext' to add only ext storage mount point sizes. Defaults to true.
+     * defaults to true
+     * @return \OC\Files\FileInfo|false False if file does not exist
+     */
+    public function getFileInfo($path, $includeMountPoints = true) {
+        $this->assertPathLength($path);
+        if (!Filesystem::isValidPath($path)) {
+            return false;
+        }
+        if (Cache\Scanner::isPartialFile($path)) {
+            return $this->getPartFileInfo($path);
+        }
+        $relativePath = $path;
+        $path = Filesystem::normalizePath($this->fakeRoot . '/' . $path);
+
+        $mount = Filesystem::getMountManager()->find($path);
+        $storage = $mount->getStorage();
+        $internalPath = $mount->getInternalPath($path);
+        if ($storage) {
+            $data = $this->getCacheEntry($storage, $internalPath, $relativePath);
+
+            if (!$data instanceof ICacheEntry) {
+                return false;
+            }
+
+            if ($mount instanceof MoveableMount && $internalPath === '') {
+                $data['permissions'] |= \OCP\Constants::PERMISSION_DELETE;
+            }
+            $ownerId = $storage->getOwner($internalPath);
+            $owner = null;
+            if ($ownerId !== null && $ownerId !== false) {
+                // ownerId might be null if files are accessed with an access token without file system access
+                $owner = $this->getUserObjectForOwner($ownerId);
+            }
+            $info = new FileInfo($path, $storage, $internalPath, $data, $mount, $owner);
+
+            if (isset($data['fileid'])) {
+                if ($includeMountPoints and $data['mimetype'] === 'httpd/unix-directory') {
+                    //add the sizes of other mount points to the folder
+                    $extOnly = ($includeMountPoints === 'ext');
+                    $mounts = Filesystem::getMountManager()->findIn($path);
+                    $info->setSubMounts(array_filter($mounts, function (IMountPoint $mount) use ($extOnly) {
+                        $subStorage = $mount->getStorage();
+                        return !($extOnly && $subStorage instanceof \OCA\Files_Sharing\SharedStorage);
+                    }));
+                }
+            }
+
+            return $info;
+        } else {
+            \OC::$server->getLogger()->warning('Storage not valid for mountpoint: ' . $mount->getMountPoint());
+        }
+
+        return false;
+    }
+
+    /**
+     * get the content of a directory
+     *
+     * @param string $directory path under datadirectory
+     * @param string $mimetype_filter limit returned content to this mimetype or mimepart
+     * @return FileInfo[]
+     */
+    public function getDirectoryContent($directory, $mimetype_filter = '') {
+        $this->assertPathLength($directory);
+        if (!Filesystem::isValidPath($directory)) {
+            return [];
+        }
+        $path = $this->getAbsolutePath($directory);
+        $path = Filesystem::normalizePath($path);
+        $mount = $this->getMount($directory);
+        if (!$mount) {
+            return [];
+        }
+        $storage = $mount->getStorage();
+        $internalPath = $mount->getInternalPath($path);
+        if ($storage) {
+            $cache = $storage->getCache($internalPath);
+            $user = \OC_User::getUser();
+
+            $data = $this->getCacheEntry($storage, $internalPath, $directory);
+
+            if (!$data instanceof ICacheEntry || !isset($data['fileid']) || !($data->getPermissions() && Constants::PERMISSION_READ)) {
+                return [];
+            }
+
+            $folderId = $data['fileid'];
+            $contents = $cache->getFolderContentsById($folderId); //TODO: mimetype_filter
+
+            $sharingDisabled = \OCP\Util::isSharingDisabledForUser();
+
+            $fileNames = array_map(function (ICacheEntry $content) {
+                return $content->getName();
+            }, $contents);
+            /**
+             * @var \OC\Files\FileInfo[] $fileInfos
+             */
+            $fileInfos = array_map(function (ICacheEntry $content) use ($path, $storage, $mount, $sharingDisabled) {
+                if ($sharingDisabled) {
+                    $content['permissions'] = $content['permissions'] & ~\OCP\Constants::PERMISSION_SHARE;
+                }
+                $owner = $this->getUserObjectForOwner($storage->getOwner($content['path']));
+                return new FileInfo($path . '/' . $content['name'], $storage, $content['path'], $content, $mount, $owner);
+            }, $contents);
+            $files = array_combine($fileNames, $fileInfos);
+
+            //add a folder for any mountpoint in this directory and add the sizes of other mountpoints to the folders
+            $mounts = Filesystem::getMountManager()->findIn($path);
+            $dirLength = strlen($path);
+            foreach ($mounts as $mount) {
+                $mountPoint = $mount->getMountPoint();
+                $subStorage = $mount->getStorage();
+                if ($subStorage) {
+                    $subCache = $subStorage->getCache('');
+
+                    $rootEntry = $subCache->get('');
+                    if (!$rootEntry) {
+                        $subScanner = $subStorage->getScanner();
+                        try {
+                            $subScanner->scanFile('');
+                        } catch (\OCP\Files\StorageNotAvailableException $e) {
+                            continue;
+                        } catch (\OCP\Files\StorageInvalidException $e) {
+                            continue;
+                        } catch (\Exception $e) {
+                            // sometimes when the storage is not available it can be any exception
+                            \OC::$server->getLogger()->logException($e, [
+                                'message' => 'Exception while scanning storage "' . $subStorage->getId() . '"',
+                                'level' => ILogger::ERROR,
+                                'app' => 'lib',
+                            ]);
+                            continue;
+                        }
+                        $rootEntry = $subCache->get('');
+                    }
+
+                    if ($rootEntry && ($rootEntry->getPermissions() && Constants::PERMISSION_READ)) {
+                        $relativePath = trim(substr($mountPoint, $dirLength), '/');
+                        if ($pos = strpos($relativePath, '/')) {
+                            //mountpoint inside subfolder add size to the correct folder
+                            $entryName = substr($relativePath, 0, $pos);
+                            foreach ($files as &$entry) {
+                                if ($entry->getName() === $entryName) {
+                                    $entry->addSubEntry($rootEntry, $mountPoint);
+                                }
+                            }
+                        } else { //mountpoint in this folder, add an entry for it
+                            $rootEntry['name'] = $relativePath;
+                            $rootEntry['type'] = $rootEntry['mimetype'] === 'httpd/unix-directory' ? 'dir' : 'file';
+                            $permissions = $rootEntry['permissions'];
+                            // do not allow renaming/deleting the mount point if they are not shared files/folders
+                            // for shared files/folders we use the permissions given by the owner
+                            if ($mount instanceof MoveableMount) {
+                                $rootEntry['permissions'] = $permissions | \OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE;
+                            } else {
+                                $rootEntry['permissions'] = $permissions & (\OCP\Constants::PERMISSION_ALL - (\OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE));
+                            }
+
+                            $rootEntry['path'] = substr(Filesystem::normalizePath($path . '/' . $rootEntry['name']), strlen($user) + 2); // full path without /$user/
+
+                            // if sharing was disabled for the user we remove the share permissions
+                            if (\OCP\Util::isSharingDisabledForUser()) {
+                                $rootEntry['permissions'] = $rootEntry['permissions'] & ~\OCP\Constants::PERMISSION_SHARE;
+                            }
+
+                            $owner = $this->getUserObjectForOwner($subStorage->getOwner(''));
+                            $files[$rootEntry->getName()] = new FileInfo($path . '/' . $rootEntry['name'], $subStorage, '', $rootEntry, $mount, $owner);
+                        }
+                    }
+                }
+            }
+
+            if ($mimetype_filter) {
+                $files = array_filter($files, function (FileInfo $file) use ($mimetype_filter) {
+                    if (strpos($mimetype_filter, '/')) {
+                        return $file->getMimetype() === $mimetype_filter;
+                    } else {
+                        return $file->getMimePart() === $mimetype_filter;
+                    }
+                });
+            }
+
+            return array_values($files);
+        } else {
+            return [];
+        }
+    }
+
+    /**
+     * change file metadata
+     *
+     * @param string $path
+     * @param array|\OCP\Files\FileInfo $data
+     * @return int
+     *
+     * returns the fileid of the updated file
+     */
+    public function putFileInfo($path, $data) {
+        $this->assertPathLength($path);
+        if ($data instanceof FileInfo) {
+            $data = $data->getData();
+        }
+        $path = Filesystem::normalizePath($this->fakeRoot . '/' . $path);
+        /**
+         * @var \OC\Files\Storage\Storage $storage
+         * @var string $internalPath
+         */
+        [$storage, $internalPath] = Filesystem::resolvePath($path);
+        if ($storage) {
+            $cache = $storage->getCache($path);
+
+            if (!$cache->inCache($internalPath)) {
+                $scanner = $storage->getScanner($internalPath);
+                $scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW);
+            }
+
+            return $cache->put($internalPath, $data);
+        } else {
+            return -1;
+        }
+    }
+
+    /**
+     * search for files with the name matching $query
+     *
+     * @param string $query
+     * @return FileInfo[]
+     */
+    public function search($query) {
+        return $this->searchCommon('search', ['%' . $query . '%']);
+    }
+
+    /**
+     * search for files with the name matching $query
+     *
+     * @param string $query
+     * @return FileInfo[]
+     */
+    public function searchRaw($query) {
+        return $this->searchCommon('search', [$query]);
+    }
+
+    /**
+     * search for files by mimetype
+     *
+     * @param string $mimetype
+     * @return FileInfo[]
+     */
+    public function searchByMime($mimetype) {
+        return $this->searchCommon('searchByMime', [$mimetype]);
+    }
+
+    /**
+     * search for files by tag
+     *
+     * @param string|int $tag name or tag id
+     * @param string $userId owner of the tags
+     * @return FileInfo[]
+     */
+    public function searchByTag($tag, $userId) {
+        return $this->searchCommon('searchByTag', [$tag, $userId]);
+    }
+
+    /**
+     * @param string $method cache method
+     * @param array $args
+     * @return FileInfo[]
+     */
+    private function searchCommon($method, $args) {
+        $files = [];
+        $rootLength = strlen($this->fakeRoot);
+
+        $mount = $this->getMount('');
+        $mountPoint = $mount->getMountPoint();
+        $storage = $mount->getStorage();
+        $userManager = \OC::$server->getUserManager();
+        if ($storage) {
+            $cache = $storage->getCache('');
+
+            $results = call_user_func_array([$cache, $method], $args);
+            foreach ($results as $result) {
+                if (substr($mountPoint . $result['path'], 0, $rootLength + 1) === $this->fakeRoot . '/') {
+                    $internalPath = $result['path'];
+                    $path = $mountPoint . $result['path'];
+                    $result['path'] = substr($mountPoint . $result['path'], $rootLength);
+                    $owner = $userManager->get($storage->getOwner($internalPath));
+                    $files[] = new FileInfo($path, $storage, $internalPath, $result, $mount, $owner);
+                }
+            }
+
+            $mounts = Filesystem::getMountManager()->findIn($this->fakeRoot);
+            foreach ($mounts as $mount) {
+                $mountPoint = $mount->getMountPoint();
+                $storage = $mount->getStorage();
+                if ($storage) {
+                    $cache = $storage->getCache('');
+
+                    $relativeMountPoint = substr($mountPoint, $rootLength);
+                    $results = call_user_func_array([$cache, $method], $args);
+                    if ($results) {
+                        foreach ($results as $result) {
+                            $internalPath = $result['path'];
+                            $result['path'] = rtrim($relativeMountPoint . $result['path'], '/');
+                            $path = rtrim($mountPoint . $internalPath, '/');
+                            $owner = $userManager->get($storage->getOwner($internalPath));
+                            $files[] = new FileInfo($path, $storage, $internalPath, $result, $mount, $owner);
+                        }
+                    }
+                }
+            }
+        }
+        return $files;
+    }
+
+    /**
+     * Get the owner for a file or folder
+     *
+     * @param string $path
+     * @return string the user id of the owner
+     * @throws NotFoundException
+     */
+    public function getOwner($path) {
+        $info = $this->getFileInfo($path);
+        if (!$info) {
+            throw new NotFoundException($path . ' not found while trying to get owner');
+        }
+
+        if ($info->getOwner() === null) {
+            throw new NotFoundException($path . ' has no owner');
+        }
+
+        return $info->getOwner()->getUID();
+    }
+
+    /**
+     * get the ETag for a file or folder
+     *
+     * @param string $path
+     * @return string
+     */
+    public function getETag($path) {
+        /**
+         * @var Storage\Storage $storage
+         * @var string $internalPath
+         */
+        [$storage, $internalPath] = $this->resolvePath($path);
+        if ($storage) {
+            return $storage->getETag($internalPath);
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Get the path of a file by id, relative to the view
+     *
+     * Note that the resulting path is not guarantied to be unique for the id, multiple paths can point to the same file
+     *
+     * @param int $id
+     * @param int|null $storageId
+     * @return string
+     * @throws NotFoundException
+     */
+    public function getPath($id, int $storageId = null) {
+        $id = (int)$id;
+        $manager = Filesystem::getMountManager();
+        $mounts = $manager->findIn($this->fakeRoot);
+        $mounts[] = $manager->find($this->fakeRoot);
+        $mounts = array_filter($mounts);
+        // reverse the array, so we start with the storage this view is in
+        // which is the most likely to contain the file we're looking for
+        $mounts = array_reverse($mounts);
+
+        // put non-shared mounts in front of the shared mount
+        // this prevents unneeded recursion into shares
+        usort($mounts, function (IMountPoint $a, IMountPoint $b) {
+            return $a instanceof SharedMount && (!$b instanceof SharedMount) ? 1 : -1;
+        });
+
+        if (!is_null($storageId)) {
+            $mounts = array_filter($mounts, function (IMountPoint $mount) use ($storageId) {
+                return $mount->getNumericStorageId() === $storageId;
+            });
+        }
+
+        foreach ($mounts as $mount) {
+            /**
+             * @var \OC\Files\Mount\MountPoint $mount
+             */
+            if ($mount->getStorage()) {
+                $cache = $mount->getStorage()->getCache();
+                $internalPath = $cache->getPathById($id);
+                if (is_string($internalPath)) {
+                    $fullPath = $mount->getMountPoint() . $internalPath;
+                    if (!is_null($path = $this->getRelativePath($fullPath))) {
+                        return $path;
+                    }
+                }
+            }
+        }
+        throw new NotFoundException(sprintf('File with id "%s" has not been found.', $id));
+    }
+
+    /**
+     * @param string $path
+     * @throws InvalidPathException
+     */
+    private function assertPathLength($path) {
+        $maxLen = min(PHP_MAXPATHLEN, 4000);
+        // Check for the string length - performed using isset() instead of strlen()
+        // because isset() is about 5x-40x faster.
+        if (isset($path[$maxLen])) {
+            $pathLen = strlen($path);
+            throw new \OCP\Files\InvalidPathException("Path length($pathLen) exceeds max path length($maxLen): $path");
+        }
+    }
+
+    /**
+     * check if it is allowed to move a mount point to a given target.
+     * It is not allowed to move a mount point into a different mount point or
+     * into an already shared folder
+     *
+     * @param IStorage $targetStorage
+     * @param string $targetInternalPath
+     * @return boolean
+     */
+    private function targetIsNotShared(IStorage $targetStorage, string $targetInternalPath) {
+
+        // note: cannot use the view because the target is already locked
+        $fileId = (int)$targetStorage->getCache()->getId($targetInternalPath);
+        if ($fileId === -1) {
+            // target might not exist, need to check parent instead
+            $fileId = (int)$targetStorage->getCache()->getId(dirname($targetInternalPath));
+        }
+
+        // check if any of the parents were shared by the current owner (include collections)
+        $shares = \OCP\Share::getItemShared(
+            'folder',
+            $fileId,
+            \OCP\Share::FORMAT_NONE,
+            null,
+            true
+        );
+
+        if (count($shares) > 0) {
+            \OCP\Util::writeLog('files',
+                'It is not allowed to move one mount point into a shared folder',
+                ILogger::DEBUG);
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Get a fileinfo object for files that are ignored in the cache (part files)
+     *
+     * @param string $path
+     * @return \OCP\Files\FileInfo
+     */
+    private function getPartFileInfo($path) {
+        $mount = $this->getMount($path);
+        $storage = $mount->getStorage();
+        $internalPath = $mount->getInternalPath($this->getAbsolutePath($path));
+        $owner = \OC::$server->getUserManager()->get($storage->getOwner($internalPath));
+        return new FileInfo(
+            $this->getAbsolutePath($path),
+            $storage,
+            $internalPath,
+            [
+                'fileid' => null,
+                'mimetype' => $storage->getMimeType($internalPath),
+                'name' => basename($path),
+                'etag' => null,
+                'size' => $storage->filesize($internalPath),
+                'mtime' => $storage->filemtime($internalPath),
+                'encrypted' => false,
+                'permissions' => \OCP\Constants::PERMISSION_ALL
+            ],
+            $mount,
+            $owner
+        );
+    }
+
+    /**
+     * @param string $path
+     * @param string $fileName
+     * @throws InvalidPathException
+     */
+    public function verifyPath($path, $fileName) {
+        try {
+            /** @type \OCP\Files\Storage $storage */
+            [$storage, $internalPath] = $this->resolvePath($path);
+            $storage->verifyPath($internalPath, $fileName);
+        } catch (ReservedWordException $ex) {
+            $l = \OC::$server->getL10N('lib');
+            throw new InvalidPathException($l->t('File name is a reserved word'));
+        } catch (InvalidCharacterInPathException $ex) {
+            $l = \OC::$server->getL10N('lib');
+            throw new InvalidPathException($l->t('File name contains at least one invalid character'));
+        } catch (FileNameTooLongException $ex) {
+            $l = \OC::$server->getL10N('lib');
+            throw new InvalidPathException($l->t('File name is too long'));
+        } catch (InvalidDirectoryException $ex) {
+            $l = \OC::$server->getL10N('lib');
+            throw new InvalidPathException($l->t('Dot files are not allowed'));
+        } catch (EmptyFileNameException $ex) {
+            $l = \OC::$server->getL10N('lib');
+            throw new InvalidPathException($l->t('Empty filename is not allowed'));
+        }
+    }
+
+    /**
+     * get all parent folders of $path
+     *
+     * @param string $path
+     * @return string[]
+     */
+    private function getParents($path) {
+        $path = trim($path, '/');
+        if (!$path) {
+            return [];
+        }
+
+        $parts = explode('/', $path);
+
+        // remove the single file
+        array_pop($parts);
+        $result = ['/'];
+        $resultPath = '';
+        foreach ($parts as $part) {
+            if ($part) {
+                $resultPath .= '/' . $part;
+                $result[] = $resultPath;
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * Returns the mount point for which to lock
+     *
+     * @param string $absolutePath absolute path
+     * @param bool $useParentMount true to return parent mount instead of whatever
+     * is mounted directly on the given path, false otherwise
+     * @return IMountPoint mount point for which to apply locks
+     */
+    private function getMountForLock($absolutePath, $useParentMount = false) {
+        $mount = Filesystem::getMountManager()->find($absolutePath);
+
+        if ($useParentMount) {
+            // find out if something is mounted directly on the path
+            $internalPath = $mount->getInternalPath($absolutePath);
+            if ($internalPath === '') {
+                // resolve the parent mount instead
+                $mount = Filesystem::getMountManager()->find(dirname($absolutePath));
+            }
+        }
+
+        return $mount;
+    }
+
+    /**
+     * Lock the given path
+     *
+     * @param string $path the path of the file to lock, relative to the view
+     * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
+     * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
+     *
+     * @return bool False if the path is excluded from locking, true otherwise
+     * @throws LockedException if the path is already locked
+     */
+    private function lockPath($path, $type, $lockMountPoint = false) {
+        $absolutePath = $this->getAbsolutePath($path);
+        $absolutePath = Filesystem::normalizePath($absolutePath);
+        if (!$this->shouldLockFile($absolutePath)) {
+            return false;
+        }
+
+        $mount = $this->getMountForLock($absolutePath, $lockMountPoint);
+        if ($mount) {
+            try {
+                $storage = $mount->getStorage();
+                if ($storage && $storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
+                    $storage->acquireLock(
+                        $mount->getInternalPath($absolutePath),
+                        $type,
+                        $this->lockingProvider
+                    );
+                }
+            } catch (LockedException $e) {
+                // rethrow with the a human-readable path
+                throw new LockedException(
+                    $this->getPathRelativeToFiles($absolutePath),
+                    $e,
+                    $e->getExistingLock()
+                );
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Change the lock type
+     *
+     * @param string $path the path of the file to lock, relative to the view
+     * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
+     * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
+     *
+     * @return bool False if the path is excluded from locking, true otherwise
+     * @throws LockedException if the path is already locked
+     */
+    public function changeLock($path, $type, $lockMountPoint = false) {
+        $path = Filesystem::normalizePath($path);
+        $absolutePath = $this->getAbsolutePath($path);
+        $absolutePath = Filesystem::normalizePath($absolutePath);
+        if (!$this->shouldLockFile($absolutePath)) {
+            return false;
+        }
+
+        $mount = $this->getMountForLock($absolutePath, $lockMountPoint);
+        if ($mount) {
+            try {
+                $storage = $mount->getStorage();
+                if ($storage && $storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
+                    $storage->changeLock(
+                        $mount->getInternalPath($absolutePath),
+                        $type,
+                        $this->lockingProvider
+                    );
+                }
+            } catch (LockedException $e) {
+                try {
+                    // rethrow with the a human-readable path
+                    throw new LockedException(
+                        $this->getPathRelativeToFiles($absolutePath),
+                        $e,
+                        $e->getExistingLock()
+                    );
+                } catch (\InvalidArgumentException $ex) {
+                    throw new LockedException(
+                        $absolutePath,
+                        $ex,
+                        $e->getExistingLock()
+                    );
+                }
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Unlock the given path
+     *
+     * @param string $path the path of the file to unlock, relative to the view
+     * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
+     * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
+     *
+     * @return bool False if the path is excluded from locking, true otherwise
+     * @throws LockedException
+     */
+    private function unlockPath($path, $type, $lockMountPoint = false) {
+        $absolutePath = $this->getAbsolutePath($path);
+        $absolutePath = Filesystem::normalizePath($absolutePath);
+        if (!$this->shouldLockFile($absolutePath)) {
+            return false;
+        }
+
+        $mount = $this->getMountForLock($absolutePath, $lockMountPoint);
+        if ($mount) {
+            $storage = $mount->getStorage();
+            if ($storage && $storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
+                $storage->releaseLock(
+                    $mount->getInternalPath($absolutePath),
+                    $type,
+                    $this->lockingProvider
+                );
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Lock a path and all its parents up to the root of the view
+     *
+     * @param string $path the path of the file to lock relative to the view
+     * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
+     * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
+     *
+     * @return bool False if the path is excluded from locking, true otherwise
+     * @throws LockedException
+     */
+    public function lockFile($path, $type, $lockMountPoint = false) {
+        $absolutePath = $this->getAbsolutePath($path);
+        $absolutePath = Filesystem::normalizePath($absolutePath);
+        if (!$this->shouldLockFile($absolutePath)) {
+            return false;
+        }
+
+        $this->lockPath($path, $type, $lockMountPoint);
+
+        $parents = $this->getParents($path);
+        foreach ($parents as $parent) {
+            $this->lockPath($parent, ILockingProvider::LOCK_SHARED);
+        }
+
+        return true;
+    }
+
+    /**
+     * Unlock a path and all its parents up to the root of the view
+     *
+     * @param string $path the path of the file to lock relative to the view
+     * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
+     * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
+     *
+     * @return bool False if the path is excluded from locking, true otherwise
+     * @throws LockedException
+     */
+    public function unlockFile($path, $type, $lockMountPoint = false) {
+        $absolutePath = $this->getAbsolutePath($path);
+        $absolutePath = Filesystem::normalizePath($absolutePath);
+        if (!$this->shouldLockFile($absolutePath)) {
+            return false;
+        }
+
+        $this->unlockPath($path, $type, $lockMountPoint);
+
+        $parents = $this->getParents($path);
+        foreach ($parents as $parent) {
+            $this->unlockPath($parent, ILockingProvider::LOCK_SHARED);
+        }
+
+        return true;
+    }
+
+    /**
+     * Only lock files in data/user/files/
+     *
+     * @param string $path Absolute path to the file/folder we try to (un)lock
+     * @return bool
+     */
+    protected function shouldLockFile($path) {
+        $path = Filesystem::normalizePath($path);
+
+        $pathSegments = explode('/', $path);
+        if (isset($pathSegments[2])) {
+            // E.g.: /username/files/path-to-file
+            return ($pathSegments[2] === 'files') && (count($pathSegments) > 3);
+        }
+
+        return strpos($path, '/appdata_') !== 0;
+    }
+
+    /**
+     * Shortens the given absolute path to be relative to
+     * "$user/files".
+     *
+     * @param string $absolutePath absolute path which is under "files"
+     *
+     * @return string path relative to "files" with trimmed slashes or null
+     * if the path was NOT relative to files
+     *
+     * @throws \InvalidArgumentException if the given path was not under "files"
+     * @since 8.1.0
+     */
+    public function getPathRelativeToFiles($absolutePath) {
+        $path = Filesystem::normalizePath($absolutePath);
+        $parts = explode('/', trim($path, '/'), 3);
+        // "$user", "files", "path/to/dir"
+        if (!isset($parts[1]) || $parts[1] !== 'files') {
+            $this->logger->error(
+                '$absolutePath must be relative to "files", value is "%s"',
+                [
+                    $absolutePath
+                ]
+            );
+            throw new \InvalidArgumentException('$absolutePath must be relative to "files"');
+        }
+        if (isset($parts[2])) {
+            return $parts[2];
+        }
+        return '';
+    }
+
+    /**
+     * @param string $filename
+     * @return array
+     * @throws \OC\User\NoUserException
+     * @throws NotFoundException
+     */
+    public function getUidAndFilename($filename) {
+        $info = $this->getFileInfo($filename);
+        if (!$info instanceof \OCP\Files\FileInfo) {
+            throw new NotFoundException($this->getAbsolutePath($filename) . ' not found');
+        }
+        $uid = $info->getOwner()->getUID();
+        if ($uid != \OC_User::getUser()) {
+            Filesystem::initMountPoints($uid);
+            $ownerView = new View('/' . $uid . '/files');
+            try {
+                $filename = $ownerView->getPath($info['fileid']);
+            } catch (NotFoundException $e) {
+                throw new NotFoundException('File with id ' . $info['fileid'] . ' not found for user ' . $uid);
+            }
+        }
+        return [$uid, $filename];
+    }
+
+    /**
+     * Creates parent non-existing folders
+     *
+     * @param string $filePath
+     * @return bool
+     */
+    private function createParentDirectories($filePath) {
+        $directoryParts = explode('/', $filePath);
+        $directoryParts = array_filter($directoryParts);
+        foreach ($directoryParts as $key => $part) {
+            $currentPathElements = array_slice($directoryParts, 0, $key);
+            $currentPath = '/' . implode('/', $currentPathElements);
+            if ($this->is_file($currentPath)) {
+                return false;
+            }
+            if (!$this->file_exists($currentPath)) {
+                $this->mkdir($currentPath);
+            }
+        }
+
+        return true;
+    }
 }

Spacing +43 added lines, -43 removed lines

@@ -130,9 +130,9 @@ 
 			$path = '/';
 		}
 		if ($path[0] !== '/') {
-			$path = '/' . $path;
+			$path = '/'.$path;
 		}
-		return $this->fakeRoot . $path;
+		return $this->fakeRoot.$path;
 	}
 
 	/**
@@ -144,7 +144,7 @@ 
 	public function chroot($fakeRoot) {
 		if (!$fakeRoot == '') {
 			if ($fakeRoot[0] !== '/') {
-				$fakeRoot = '/' . $fakeRoot;
+				$fakeRoot = '/'.$fakeRoot;
 			}
 		}
 		$this->fakeRoot = $fakeRoot;
@@ -176,7 +176,7 @@ 
 		}
 
 		// missing slashes can cause wrong matches!
-		$root = rtrim($this->fakeRoot, '/') . '/';
+		$root = rtrim($this->fakeRoot, '/').'/';
 
 		if (strpos($path, $root) !== 0) {
 			return null;
@@ -282,7 +282,7 @@ 
 		if ($mount instanceof MoveableMount) {
 			// cut of /user/files to get the relative path to data/user/files
 			$pathParts = explode('/', $path, 4);
-			$relPath = '/' . $pathParts[3];
+			$relPath = '/'.$pathParts[3];
 			$this->lockFile($relPath, ILockingProvider::LOCK_SHARED, true);
 			\OC_Hook::emit(
 				Filesystem::CLASSNAME, "umount",
@@ -718,7 +718,7 @@ 
 		}
 		$postFix = (substr($path, -1) === '/') ? '/' : '';
 		$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
-		$mount = Filesystem::getMountManager()->find($absolutePath . $postFix);
+		$mount = Filesystem::getMountManager()->find($absolutePath.$postFix);
 		if ($mount->getInternalPath($absolutePath) === '') {
 			return $this->removeMount($mount, $absolutePath);
 		}
@@ -995,7 +995,7 @@ 
 				$hooks[] = 'write';
 				break;
 			default:
-				\OCP\Util::writeLog('core', 'invalid mode (' . $mode . ') for ' . $path, ILogger::ERROR);
+				\OCP\Util::writeLog('core', 'invalid mode ('.$mode.') for '.$path, ILogger::ERROR);
 		}
 
 		if ($mode !== 'r' && $mode !== 'w') {
@@ -1100,7 +1100,7 @@ 
 				);
 			}
 			/** @var Storage|null $storage */
-			[$storage, $internalPath] = Filesystem::resolvePath($absolutePath . $postFix);
+			[$storage, $internalPath] = Filesystem::resolvePath($absolutePath.$postFix);
 			if ($storage) {
 				return $storage->hash($type, $internalPath, $raw);
 			}
@@ -1154,7 +1154,7 @@ 
 
 			$run = $this->runHooks($hooks, $path);
 			/** @var \OC\Files\Storage\Storage $storage */
-			[$storage, $internalPath] = Filesystem::resolvePath($absolutePath . $postFix);
+			[$storage, $internalPath] = Filesystem::resolvePath($absolutePath.$postFix);
 			if ($run and $storage) {
 				if (in_array('write', $hooks) || in_array('delete', $hooks)) {
 					try {
@@ -1199,7 +1199,7 @@ 
 					$unlockLater = true;
 					// make sure our unlocking callback will still be called if connection is aborted
 					ignore_user_abort(true);
-					$result = CallbackWrapper::wrap($result, null, null, function () use ($hooks, $path) {
+					$result = CallbackWrapper::wrap($result, null, null, function() use ($hooks, $path) {
 						if (in_array('write', $hooks)) {
 							$this->unlockFile($path, ILockingProvider::LOCK_EXCLUSIVE);
 						} elseif (in_array('read', $hooks)) {
@@ -1260,7 +1260,7 @@ 
 			return true;
 		}
 
-		return (strlen($fullPath) > strlen($defaultRoot)) && (substr($fullPath, 0, strlen($defaultRoot) + 1) === $defaultRoot . '/');
+		return (strlen($fullPath) > strlen($defaultRoot)) && (substr($fullPath, 0, strlen($defaultRoot) + 1) === $defaultRoot.'/');
 	}
 
 	/**
@@ -1279,7 +1279,7 @@ 
 				if ($hook != 'read') {
 					\OC_Hook::emit(
 						Filesystem::CLASSNAME,
-						$prefix . $hook,
+						$prefix.$hook,
 						[
 							Filesystem::signal_param_run => &$run,
 							Filesystem::signal_param_path => $path
@@ -1288,7 +1288,7 @@ 
 				} elseif (!$post) {
 					\OC_Hook::emit(
 						Filesystem::CLASSNAME,
-						$prefix . $hook,
+						$prefix.$hook,
 						[
 							Filesystem::signal_param_path => $path
 						]
@@ -1381,7 +1381,7 @@ 
 			return $this->getPartFileInfo($path);
 		}
 		$relativePath = $path;
-		$path = Filesystem::normalizePath($this->fakeRoot . '/' . $path);
+		$path = Filesystem::normalizePath($this->fakeRoot.'/'.$path);
 
 		$mount = Filesystem::getMountManager()->find($path);
 		$storage = $mount->getStorage();
@@ -1409,7 +1409,7 @@ 
 					//add the sizes of other mount points to the folder
 					$extOnly = ($includeMountPoints === 'ext');
 					$mounts = Filesystem::getMountManager()->findIn($path);
-					$info->setSubMounts(array_filter($mounts, function (IMountPoint $mount) use ($extOnly) {
+					$info->setSubMounts(array_filter($mounts, function(IMountPoint $mount) use ($extOnly) {
 						$subStorage = $mount->getStorage();
 						return !($extOnly && $subStorage instanceof \OCA\Files_Sharing\SharedStorage);
 					}));
@@ -1418,7 +1418,7 @@ 
 
 			return $info;
 		} else {
-			\OC::$server->getLogger()->warning('Storage not valid for mountpoint: ' . $mount->getMountPoint());
+			\OC::$server->getLogger()->warning('Storage not valid for mountpoint: '.$mount->getMountPoint());
 		}
 
 		return false;
@@ -1459,18 +1459,18 @@ 
 
 			$sharingDisabled = \OCP\Util::isSharingDisabledForUser();
 
-			$fileNames = array_map(function (ICacheEntry $content) {
+			$fileNames = array_map(function(ICacheEntry $content) {
 				return $content->getName();
 			}, $contents);
 			/**
 			 * @var \OC\Files\FileInfo[] $fileInfos
 			 */
-			$fileInfos = array_map(function (ICacheEntry $content) use ($path, $storage, $mount, $sharingDisabled) {
+			$fileInfos = array_map(function(ICacheEntry $content) use ($path, $storage, $mount, $sharingDisabled) {
 				if ($sharingDisabled) {
 					$content['permissions'] = $content['permissions'] & ~\OCP\Constants::PERMISSION_SHARE;
 				}
 				$owner = $this->getUserObjectForOwner($storage->getOwner($content['path']));
-				return new FileInfo($path . '/' . $content['name'], $storage, $content['path'], $content, $mount, $owner);
+				return new FileInfo($path.'/'.$content['name'], $storage, $content['path'], $content, $mount, $owner);
 			}, $contents);
 			$files = array_combine($fileNames, $fileInfos);
 
@@ -1495,7 +1495,7 @@ 
 						} catch (\Exception $e) {
 							// sometimes when the storage is not available it can be any exception
 							\OC::$server->getLogger()->logException($e, [
-								'message' => 'Exception while scanning storage "' . $subStorage->getId() . '"',
+								'message' => 'Exception while scanning storage "'.$subStorage->getId().'"',
 								'level' => ILogger::ERROR,
 								'app' => 'lib',
 							]);
@@ -1526,7 +1526,7 @@ 
 								$rootEntry['permissions'] = $permissions & (\OCP\Constants::PERMISSION_ALL - (\OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE));
 							}
 
-							$rootEntry['path'] = substr(Filesystem::normalizePath($path . '/' . $rootEntry['name']), strlen($user) + 2); // full path without /$user/
+							$rootEntry['path'] = substr(Filesystem::normalizePath($path.'/'.$rootEntry['name']), strlen($user) + 2); // full path without /$user/
 
 							// if sharing was disabled for the user we remove the share permissions
 							if (\OCP\Util::isSharingDisabledForUser()) {
@@ -1534,14 +1534,14 @@ 
 							}
 
 							$owner = $this->getUserObjectForOwner($subStorage->getOwner(''));
-							$files[$rootEntry->getName()] = new FileInfo($path . '/' . $rootEntry['name'], $subStorage, '', $rootEntry, $mount, $owner);
+							$files[$rootEntry->getName()] = new FileInfo($path.'/'.$rootEntry['name'], $subStorage, '', $rootEntry, $mount, $owner);
 						}
 					}
 				}
 			}
 
 			if ($mimetype_filter) {
-				$files = array_filter($files, function (FileInfo $file) use ($mimetype_filter) {
+				$files = array_filter($files, function(FileInfo $file) use ($mimetype_filter) {
 					if (strpos($mimetype_filter, '/')) {
 						return $file->getMimetype() === $mimetype_filter;
 					} else {
@@ -1570,7 +1570,7 @@ 
 		if ($data instanceof FileInfo) {
 			$data = $data->getData();
 		}
-		$path = Filesystem::normalizePath($this->fakeRoot . '/' . $path);
+		$path = Filesystem::normalizePath($this->fakeRoot.'/'.$path);
 		/**
 		 * @var \OC\Files\Storage\Storage $storage
 		 * @var string $internalPath
@@ -1597,7 +1597,7 @@ 
 	 * @return FileInfo[]
 	 */
 	public function search($query) {
-		return $this->searchCommon('search', ['%' . $query . '%']);
+		return $this->searchCommon('search', ['%'.$query.'%']);
 	}
 
 	/**
@@ -1649,10 +1649,10 @@ 
 
 			$results = call_user_func_array([$cache, $method], $args);
 			foreach ($results as $result) {
-				if (substr($mountPoint . $result['path'], 0, $rootLength + 1) === $this->fakeRoot . '/') {
+				if (substr($mountPoint.$result['path'], 0, $rootLength + 1) === $this->fakeRoot.'/') {
 					$internalPath = $result['path'];
-					$path = $mountPoint . $result['path'];
-					$result['path'] = substr($mountPoint . $result['path'], $rootLength);
+					$path = $mountPoint.$result['path'];
+					$result['path'] = substr($mountPoint.$result['path'], $rootLength);
 					$owner = $userManager->get($storage->getOwner($internalPath));
 					$files[] = new FileInfo($path, $storage, $internalPath, $result, $mount, $owner);
 				}
@@ -1670,8 +1670,8 @@ 
 					if ($results) {
 						foreach ($results as $result) {
 							$internalPath = $result['path'];
-							$result['path'] = rtrim($relativeMountPoint . $result['path'], '/');
-							$path = rtrim($mountPoint . $internalPath, '/');
+							$result['path'] = rtrim($relativeMountPoint.$result['path'], '/');
+							$path = rtrim($mountPoint.$internalPath, '/');
 							$owner = $userManager->get($storage->getOwner($internalPath));
 							$files[] = new FileInfo($path, $storage, $internalPath, $result, $mount, $owner);
 						}
@@ -1692,11 +1692,11 @@ 
 	public function getOwner($path) {
 		$info = $this->getFileInfo($path);
 		if (!$info) {
-			throw new NotFoundException($path . ' not found while trying to get owner');
+			throw new NotFoundException($path.' not found while trying to get owner');
 		}
 
 		if ($info->getOwner() === null) {
-			throw new NotFoundException($path . ' has no owner');
+			throw new NotFoundException($path.' has no owner');
 		}
 
 		return $info->getOwner()->getUID();
@@ -1732,7 +1732,7 @@ 
 	 * @throws NotFoundException
 	 */
 	public function getPath($id, int $storageId = null) {
-		$id = (int)$id;
+		$id = (int) $id;
 		$manager = Filesystem::getMountManager();
 		$mounts = $manager->findIn($this->fakeRoot);
 		$mounts[] = $manager->find($this->fakeRoot);
@@ -1743,12 +1743,12 @@ 
 
 		// put non-shared mounts in front of the shared mount
 		// this prevents unneeded recursion into shares
-		usort($mounts, function (IMountPoint $a, IMountPoint $b) {
+		usort($mounts, function(IMountPoint $a, IMountPoint $b) {
 			return $a instanceof SharedMount && (!$b instanceof SharedMount) ? 1 : -1;
 		});
 
 		if (!is_null($storageId)) {
-			$mounts = array_filter($mounts, function (IMountPoint $mount) use ($storageId) {
+			$mounts = array_filter($mounts, function(IMountPoint $mount) use ($storageId) {
 				return $mount->getNumericStorageId() === $storageId;
 			});
 		}
@@ -1761,7 +1761,7 @@ 
 				$cache = $mount->getStorage()->getCache();
 				$internalPath = $cache->getPathById($id);
 				if (is_string($internalPath)) {
-					$fullPath = $mount->getMountPoint() . $internalPath;
+					$fullPath = $mount->getMountPoint().$internalPath;
 					if (!is_null($path = $this->getRelativePath($fullPath))) {
 						return $path;
 					}
@@ -1797,10 +1797,10 @@ 
 	private function targetIsNotShared(IStorage $targetStorage, string $targetInternalPath) {
 
 		// note: cannot use the view because the target is already locked
-		$fileId = (int)$targetStorage->getCache()->getId($targetInternalPath);
+		$fileId = (int) $targetStorage->getCache()->getId($targetInternalPath);
 		if ($fileId === -1) {
 			// target might not exist, need to check parent instead
-			$fileId = (int)$targetStorage->getCache()->getId(dirname($targetInternalPath));
+			$fileId = (int) $targetStorage->getCache()->getId(dirname($targetInternalPath));
 		}
 
 		// check if any of the parents were shared by the current owner (include collections)
@@ -1900,7 +1900,7 @@ 
 		$resultPath = '';
 		foreach ($parts as $part) {
 			if ($part) {
-				$resultPath .= '/' . $part;
+				$resultPath .= '/'.$part;
 				$result[] = $resultPath;
 			}
 		}
@@ -2165,16 +2165,16 @@ 
 	public function getUidAndFilename($filename) {
 		$info = $this->getFileInfo($filename);
 		if (!$info instanceof \OCP\Files\FileInfo) {
-			throw new NotFoundException($this->getAbsolutePath($filename) . ' not found');
+			throw new NotFoundException($this->getAbsolutePath($filename).' not found');
 		}
 		$uid = $info->getOwner()->getUID();
 		if ($uid != \OC_User::getUser()) {
 			Filesystem::initMountPoints($uid);
-			$ownerView = new View('/' . $uid . '/files');
+			$ownerView = new View('/'.$uid.'/files');
 			try {
 				$filename = $ownerView->getPath($info['fileid']);
 			} catch (NotFoundException $e) {
-				throw new NotFoundException('File with id ' . $info['fileid'] . ' not found for user ' . $uid);
+				throw new NotFoundException('File with id '.$info['fileid'].' not found for user '.$uid);
 			}
 		}
 		return [$uid, $filename];
@@ -2191,7 +2191,7 @@ 
 		$directoryParts = array_filter($directoryParts);
 		foreach ($directoryParts as $key => $part) {
 			$currentPathElements = array_slice($directoryParts, 0, $key);
-			$currentPath = '/' . implode('/', $currentPathElements);
+			$currentPath = '/'.implode('/', $currentPathElements);
 			if ($this->is_file($currentPath)) {
 				return false;
 			}