/* * Copyright (C) 2022 by Claudio Cambra * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. */ import FileProvider import OSLog import NCDesktopClientSocketKit import NextcloudKit class FileProviderExtension: NSObject, NSFileProviderReplicatedExtension, NKCommonDelegate { let domain: NSFileProviderDomain let ncKit = NextcloudKit() lazy var ncKitBackground: NKBackground = { let nckb = NKBackground(nkCommonInstance: ncKit.nkCommonInstance) return nckb }() let appGroupIdentifier: String? = Bundle.main.object(forInfoDictionaryKey: "SocketApiPrefix") as? String var ncAccount: NextcloudAccount? lazy var socketClient: LocalSocketClient? = { guard let containerUrl = pathForAppGroupContainer() else { Logger.fileProviderExtension.critical("Could not start file provider socket client properly as could not get container url") return nil; } let socketPath = containerUrl.appendingPathComponent(".fileprovidersocket", conformingTo: .archive) let lineProcessor = FileProviderSocketLineProcessor(delegate: self) return LocalSocketClient(socketPath: socketPath.path, lineProcessor: lineProcessor) }() let urlSessionIdentifier: String = "com.nextcloud.session.upload.fileproviderext" let urlSessionMaximumConnectionsPerHost = 5 lazy var urlSession: URLSession = { let configuration = URLSessionConfiguration.background(withIdentifier: urlSessionIdentifier) configuration.allowsCellularAccess = true configuration.sessionSendsLaunchEvents = true configuration.isDiscretionary = false configuration.httpMaximumConnectionsPerHost = urlSessionMaximumConnectionsPerHost configuration.requestCachePolicy = NSURLRequest.CachePolicy.reloadIgnoringLocalCacheData configuration.sharedContainerIdentifier = appGroupIdentifier let session = URLSession(configuration: configuration, delegate: ncKitBackground, delegateQueue: OperationQueue.main) return session }() var outstandingSessionTasks: [String: URLSessionTask] = [:] var outstandingOcIdTemp: [String: String] = [:] required init(domain: NSFileProviderDomain) { self.domain = domain // The containing application must create a domain using `NSFileProviderManager.add(_:, completionHandler:)`. The system will then launch the application extension process, call `FileProviderExtension.init(domain:)` to instantiate the extension for that domain, and call methods on the instance. super.init() self.socketClient?.start() } func invalidate() { // TODO: cleanup any resources Logger.fileProviderExtension.debug("Extension for domain \(self.domain.displayName, privacy: OSLogPrivacy.auto(mask: .hash)) is being torn down") } // MARK: NSFileProviderReplicatedExtension protocol methods func item(for identifier: NSFileProviderItemIdentifier, request: NSFileProviderRequest, completionHandler: @escaping (NSFileProviderItem?, Error?) -> Void) -> Progress { // resolve the given identifier to a record in the model Logger.fileProviderExtension.debug("Received item request for item with identifier: \(identifier.rawValue, privacy: .public)") if identifier == .rootContainer { guard let ncAccount = ncAccount else { Logger.fileProviderExtension.error("Not providing item: \(identifier.rawValue, privacy: .public) as account not set up yet") completionHandler(nil, NSFileProviderError(.notAuthenticated)) return Progress() } let metadata = NextcloudItemMetadataTable() metadata.account = ncAccount.ncKitAccount metadata.directory = true metadata.ocId = NSFileProviderItemIdentifier.rootContainer.rawValue metadata.fileName = "root" metadata.fileNameView = "root" metadata.serverUrl = ncAccount.serverUrl metadata.classFile = NKCommon.TypeClassFile.directory.rawValue completionHandler(FileProviderItem(metadata: metadata, parentItemIdentifier: NSFileProviderItemIdentifier.rootContainer, ncKit: ncKit), nil) return Progress() } let dbManager = NextcloudFilesDatabaseManager.shared guard let metadata = dbManager.itemMetadataFromFileProviderItemIdentifier(identifier), let parentItemIdentifier = dbManager.parentItemIdentifierFromMetadata(metadata) else { completionHandler(nil, NSFileProviderError(.noSuchItem)) return Progress() } completionHandler(FileProviderItem(metadata: metadata, parentItemIdentifier: parentItemIdentifier, ncKit: ncKit), nil) return Progress() } func fetchContents(for itemIdentifier: NSFileProviderItemIdentifier, version requestedVersion: NSFileProviderItemVersion?, request: NSFileProviderRequest, completionHandler: @escaping (URL?, NSFileProviderItem?, Error?) -> Void) -> Progress { Logger.fileProviderExtension.debug("Received request to fetch contents of item with identifier: \(itemIdentifier.rawValue, privacy: .public)") guard requestedVersion == nil else { // TODO: Add proper support for file versioning Logger.fileProviderExtension.error("Can't return contents for specific version as this is not supported.") completionHandler(nil, nil, NSError(domain: NSCocoaErrorDomain, code: NSFeatureUnsupportedError, userInfo:[:])) return Progress() } guard ncAccount != nil else { Logger.fileProviderExtension.error("Not fetching contents item: \(itemIdentifier.rawValue, privacy: .public) as account not set up yet") completionHandler(nil, nil, NSFileProviderError(.notAuthenticated)) return Progress() } let dbManager = NextcloudFilesDatabaseManager.shared let ocId = itemIdentifier.rawValue guard let metadata = dbManager.itemMetadataFromOcId(ocId) else { Logger.fileProviderExtension.error("Could not acquire metadata of item with identifier: \(itemIdentifier.rawValue, privacy: .public)") completionHandler(nil, nil, NSFileProviderError(.noSuchItem)) return Progress() } guard !metadata.isDocumentViewableOnly else { Logger.fileProviderExtension.error("Could not get contents of item as is readonly: \(itemIdentifier.rawValue, privacy: .public) \(metadata.fileName, privacy: OSLogPrivacy.auto(mask: .hash))") completionHandler(nil, nil, NSFileProviderError(.cannotSynchronize)) return Progress() } let serverUrlFileName = metadata.serverUrl + "/" + metadata.fileName Logger.fileProviderExtension.debug("Fetching file with name \(metadata.fileName, privacy: OSLogPrivacy.auto(mask: .hash)) at URL: \(serverUrlFileName, privacy: OSLogPrivacy.auto(mask: .hash))") let progress = Progress() // TODO: Handle folders nicely do { let fileNameLocalPath = try localPathForNCFile(ocId: metadata.ocId, fileNameView: metadata.fileNameView) guard let updatedMetadata = dbManager.setStatusForItemMetadata(metadata, status: NextcloudItemMetadataTable.Status.downloading) else { Logger.fileProviderExtension.error("Could not acquire updated metadata of item with identifier: \(itemIdentifier.rawValue, privacy: .public)") completionHandler(nil, nil, NSFileProviderError(.noSuchItem)) return Progress() } self.ncKit.download(serverUrlFileName: serverUrlFileName, fileNameLocalPath: fileNameLocalPath.path, requestHandler: { _ in }, taskHandler: { task in self.outstandingSessionTasks[serverUrlFileName] = task NSFileProviderManager(for: self.domain)?.register(task, forItemWithIdentifier: itemIdentifier, completionHandler: { _ in }) }, progressHandler: { downloadProgress in downloadProgress.copyCurrentStateToProgress(progress) }) { _, etag, date, _, _, _, error in self.outstandingSessionTasks.removeValue(forKey: serverUrlFileName) if error == .success { Logger.fileTransfer.debug("Acquired contents of item with identifier: \(itemIdentifier.rawValue, privacy: .public) and filename: \(updatedMetadata.fileName, privacy: OSLogPrivacy.auto(mask: .hash))") updatedMetadata.status = NextcloudItemMetadataTable.Status.normal.rawValue updatedMetadata.date = (date ?? NSDate()) as Date updatedMetadata.etag = etag ?? "" dbManager.addLocalFileMetadataFromItemMetadata(updatedMetadata) dbManager.addItemMetadata(updatedMetadata) guard let parentItemIdentifier = dbManager.parentItemIdentifierFromMetadata(updatedMetadata) else { completionHandler(nil, nil, NSFileProviderError(.noSuchItem)) return } let fpItem = FileProviderItem(metadata: updatedMetadata, parentItemIdentifier: parentItemIdentifier, ncKit: self.ncKit) completionHandler(fileNameLocalPath, fpItem, nil) } else { Logger.fileTransfer.error("Could not acquire contents of item with identifier: \(itemIdentifier.rawValue, privacy: .public) and fileName: \(updatedMetadata.fileName, privacy: OSLogPrivacy.auto(mask: .hash))") updatedMetadata.status = NextcloudItemMetadataTable.Status.downloadError.rawValue updatedMetadata.sessionError = error.errorDescription dbManager.addItemMetadata(updatedMetadata) completionHandler(nil, nil, error.toFileProviderError()) } } } catch let error { Logger.fileProviderExtension.error("Could not find local path for file \(metadata.fileName, privacy: OSLogPrivacy.auto(mask: .hash)), received error: \(error, privacy: .public)") completionHandler(nil, nil, NSFileProviderError(.cannotSynchronize)) } return progress } func createItem(basedOn itemTemplate: NSFileProviderItem, fields: NSFileProviderItemFields, contents url: URL?, options: NSFileProviderCreateItemOptions = [], request: NSFileProviderRequest, completionHandler: @escaping (NSFileProviderItem?, NSFileProviderItemFields, Bool, Error?) -> Void) -> Progress { // TODO: a new item was created on disk, process the item's creation Logger.fileProviderExtension.debug("Received create item request for item with identifier: \(itemTemplate.itemIdentifier.rawValue, privacy: .public) and filename: \(itemTemplate.filename, privacy: OSLogPrivacy.auto(mask: .hash))") guard itemTemplate.contentType != .symbolicLink else { Logger.fileProviderExtension.error("Cannot create item, symbolic links not supported.") completionHandler(itemTemplate, NSFileProviderItemFields(), false, NSError(domain: NSCocoaErrorDomain, code: NSFeatureUnsupportedError, userInfo:[:])) return Progress() } guard let ncAccount = ncAccount else { Logger.fileProviderExtension.error("Not creating item: \(itemTemplate.itemIdentifier.rawValue, privacy: .public) as account not set up yet") completionHandler(itemTemplate, NSFileProviderItemFields(), false, NSFileProviderError(.notAuthenticated)) return Progress() } let dbManager = NextcloudFilesDatabaseManager.shared let parentItemIdentifier = itemTemplate.parentItemIdentifier let itemTemplateIsFolder = itemTemplate.contentType == .folder || itemTemplate.contentType == .directory if options.contains(.mayAlreadyExist) { // TODO: This needs to be properly handled with a check in the db Logger.fileProviderExtension.info("Not creating item: \(itemTemplate.itemIdentifier.rawValue, privacy: .public) as it may already exist") completionHandler(itemTemplate, NSFileProviderItemFields(), false, NSFileProviderError(.noSuchItem)) return Progress() } var parentItemMetadata: NextcloudDirectoryMetadataTable? if parentItemIdentifier == .rootContainer { let rootMetadata = NextcloudDirectoryMetadataTable() rootMetadata.account = ncAccount.ncKitAccount rootMetadata.ocId = NSFileProviderItemIdentifier.rootContainer.rawValue rootMetadata.serverUrl = ncAccount.davFilesUrl parentItemMetadata = rootMetadata } else { parentItemMetadata = dbManager.directoryMetadata(ocId: parentItemIdentifier.rawValue) } guard let parentItemMetadata = parentItemMetadata else { Logger.fileProviderExtension.error("Not creating item: \(itemTemplate.itemIdentifier.rawValue, privacy: .public), could not find metadata for parentItemIdentifier \(parentItemIdentifier.rawValue, privacy: .public)") completionHandler(itemTemplate, NSFileProviderItemFields(), false, NSFileProviderError(.noSuchItem)) return Progress() } let fileNameLocalPath = url?.path ?? "" let newServerUrlFileName = parentItemMetadata.serverUrl + "/" + itemTemplate.filename Logger.fileProviderExtension.debug("About to upload item with identifier: \(itemTemplate.itemIdentifier.rawValue, privacy: .public) of type: \(itemTemplate.contentType?.identifier ?? "UNKNOWN") (is folder: \(itemTemplateIsFolder ? "yes" : "no") and filename: \(itemTemplate.filename) to server url: \(newServerUrlFileName, privacy: OSLogPrivacy.auto(mask: .hash)) with contents located at: \(fileNameLocalPath, privacy: OSLogPrivacy.auto(mask: .hash))") if itemTemplateIsFolder { self.ncKit.createFolder(serverUrlFileName: newServerUrlFileName) { account, ocId, _, error in guard error == .success else { Logger.fileTransfer.error("Could not create new folder with name: \(itemTemplate.filename, privacy: .public), received error: \(error, privacy: .public)") completionHandler(itemTemplate, [], false, error.toFileProviderError()) return } // Read contents after creation self.ncKit.readFileOrFolder(serverUrlFileName: newServerUrlFileName, depth: "0", showHiddenFiles: true) { account, files, _, error in guard error == .success else { Logger.fileTransfer.error("Could not read new folder with name: \(itemTemplate.filename, privacy: OSLogPrivacy.auto(mask: .hash)), received error: \(error, privacy: .public)") return } DispatchQueue.global().async { dbManager.convertNKFilesFromDirectoryReadToItemMetadatas(files, account: account) { directoryMetadata, childDirectoriesMetadata, metadatas in let newDirectoryMetadata = dbManager.directoryMetadataFromItemMetadata(directoryItemMetadata: directoryMetadata) dbManager.addDirectoryMetadata(newDirectoryMetadata) dbManager.addItemMetadata(directoryMetadata) let fpItem = FileProviderItem(metadata: directoryMetadata, parentItemIdentifier: parentItemIdentifier, ncKit: self.ncKit) completionHandler(fpItem, [], true, nil) } } } } return Progress() } let progress = Progress() self.ncKit.upload(serverUrlFileName: newServerUrlFileName, fileNameLocalPath: fileNameLocalPath, requestHandler: { _ in }, taskHandler: { task in self.outstandingSessionTasks[newServerUrlFileName] = task NSFileProviderManager(for: self.domain)?.register(task, forItemWithIdentifier: itemTemplate.itemIdentifier, completionHandler: { _ in }) }, progressHandler: { uploadProgress in uploadProgress.copyCurrentStateToProgress(progress) }) { account, ocId, etag, date, size, _, _, error in self.outstandingSessionTasks.removeValue(forKey: newServerUrlFileName) guard error == .success, let ocId = ocId/*, size == itemTemplate.documentSize as! Int64*/ else { Logger.fileTransfer.error("Could not upload item with filename: \(itemTemplate.filename, privacy: OSLogPrivacy.auto(mask: .hash)), received error: \(error, privacy: .public)") completionHandler(itemTemplate, [], false, error.toFileProviderError()) return } Logger.fileTransfer.info("Successfully uploaded item with identifier: \(ocId, privacy: .public) and filename: \(itemTemplate.filename, privacy: OSLogPrivacy.auto(mask: .hash))") let newMetadata = NextcloudItemMetadataTable() newMetadata.date = (date ?? NSDate()) as Date newMetadata.etag = etag ?? "" newMetadata.account = account newMetadata.fileName = itemTemplate.filename newMetadata.fileNameView = itemTemplate.filename newMetadata.ocId = ocId newMetadata.size = size newMetadata.contentType = itemTemplate.contentType?.preferredMIMEType ?? "" newMetadata.directory = itemTemplateIsFolder newMetadata.serverUrl = parentItemMetadata.serverUrl newMetadata.session = "" newMetadata.sessionError = "" newMetadata.sessionTaskIdentifier = 0 newMetadata.status = NextcloudItemMetadataTable.Status.normal.rawValue dbManager.addLocalFileMetadataFromItemMetadata(newMetadata) dbManager.addItemMetadata(newMetadata) let fpItem = FileProviderItem(metadata: newMetadata, parentItemIdentifier: parentItemIdentifier, ncKit: self.ncKit) completionHandler(fpItem, [], false, nil) } return progress } func modifyItem(_ item: NSFileProviderItem, baseVersion version: NSFileProviderItemVersion, changedFields: NSFileProviderItemFields, contents newContents: URL?, options: NSFileProviderModifyItemOptions = [], request: NSFileProviderRequest, completionHandler: @escaping (NSFileProviderItem?, NSFileProviderItemFields, Bool, Error?) -> Void) -> Progress { // An item was modified on disk, process the item's modification // TODO: Handle finder things like tags, other possible item changed fields Logger.fileProviderExtension.debug("Received modify item request for item with identifier: \(item.itemIdentifier.rawValue, privacy: .public) and filename: \(item.filename, privacy: OSLogPrivacy.auto(mask: .hash))") guard let ncAccount = ncAccount else { Logger.fileProviderExtension.error("Not modifying item: \(item.itemIdentifier.rawValue, privacy: .public) as account not set up yet") completionHandler(item, [], false, NSFileProviderError(.notAuthenticated)) return Progress() } let dbManager = NextcloudFilesDatabaseManager.shared let parentItemIdentifier = item.parentItemIdentifier let itemTemplateIsFolder = item.contentType == .folder || item.contentType == .directory if options.contains(.mayAlreadyExist) { // TODO: This needs to be properly handled with a check in the db Logger.fileProviderExtension.warning("Modification for item: \(item.itemIdentifier.rawValue, privacy: .public) may already exist") } var parentItemMetadata: NextcloudDirectoryMetadataTable? if parentItemIdentifier == .rootContainer { let rootMetadata = NextcloudDirectoryMetadataTable() rootMetadata.account = ncAccount.ncKitAccount rootMetadata.ocId = NSFileProviderItemIdentifier.rootContainer.rawValue rootMetadata.serverUrl = ncAccount.davFilesUrl parentItemMetadata = rootMetadata } else { parentItemMetadata = dbManager.directoryMetadata(ocId: parentItemIdentifier.rawValue) } guard let parentItemMetadata = parentItemMetadata else { Logger.fileProviderExtension.error("Not modifying item: \(item.itemIdentifier.rawValue, privacy: .public), could not find metadata for parentItemIdentifier \(parentItemIdentifier.rawValue, privacy: .public)") completionHandler(item, [], false, NSFileProviderError(.noSuchItem)) return Progress() } let fileNameLocalPath = newContents?.path ?? "" let newServerUrlFileName = parentItemMetadata.serverUrl + "/" + item.filename Logger.fileProviderExtension.debug("About to upload modified item with identifier: \(item.itemIdentifier.rawValue, privacy: .public) of type: \(item.contentType?.identifier ?? "UNKNOWN") (is folder: \(itemTemplateIsFolder ? "yes" : "no") and filename: \(item.filename, privacy: OSLogPrivacy.auto(mask: .hash)) to server url: \(newServerUrlFileName, privacy: OSLogPrivacy.auto(mask: .hash)) with contents located at: \(fileNameLocalPath, privacy: OSLogPrivacy.auto(mask: .hash))") var modifiedItem = item if changedFields.contains(.filename) || changedFields.contains(.parentItemIdentifier) { let ocId = item.itemIdentifier.rawValue Logger.fileProviderExtension.debug("Changed fields for item \(ocId, privacy: .public) with filename \(item.filename, privacy: OSLogPrivacy.auto(mask: .hash)) includes filename or parentitemidentifier...") guard let metadata = dbManager.itemMetadataFromOcId(ocId) else { Logger.fileProviderExtension.error("Could not acquire metadata of item with identifier: \(item.itemIdentifier.rawValue, privacy: .public)") completionHandler(item, [], false, NSFileProviderError(.noSuchItem)) return Progress() } var renameError: NSFileProviderError? let oldServerUrlFileName = metadata.serverUrl + "/" + metadata.fileName // We want to wait for network operations to finish before we fire off subsequent network // operations, or we might cause explosions (e.g. trying to modify items that have just been // moved elsewhere) let dispatchGroup = DispatchGroup() dispatchGroup.enter() self.ncKit.moveFileOrFolder(serverUrlFileNameSource: oldServerUrlFileName, serverUrlFileNameDestination: newServerUrlFileName, overwrite: false) { account, error in guard error == .success else { Logger.fileTransfer.error("Could not move file or folder: \(oldServerUrlFileName, privacy: OSLogPrivacy.auto(mask: .hash)) to \(newServerUrlFileName, privacy: OSLogPrivacy.auto(mask: .hash)), received error: \(error, privacy: .public)") renameError = error.toFileProviderError() dispatchGroup.leave() return } // Remember that a folder metadata's serverUrl is its direct server URL, while for // an item metadata the server URL is the parent folder's URL if itemTemplateIsFolder { dbManager.renameDirectoryAndPropagateToChildren(ocId: ocId, newServerUrl: newServerUrlFileName, newFileName: item.filename) } else { dbManager.renameItemMetadata(ocId: ocId, newServerUrl: parentItemMetadata.serverUrl, newFileName: item.filename) } guard let newMetadata = dbManager.itemMetadataFromOcId(ocId) else { Logger.fileTransfer.error("Could not acquire metadata of item with identifier: \(ocId, privacy: .public), cannot correctly inform of modification") renameError = NSFileProviderError(.noSuchItem) dispatchGroup.leave() return } modifiedItem = FileProviderItem(metadata: newMetadata, parentItemIdentifier: parentItemIdentifier, ncKit: self.ncKit) dispatchGroup.leave() } dispatchGroup.wait() guard renameError == nil else { Logger.fileTransfer.error("Stopping rename of item with ocId \(ocId, privacy: .public) due to error: \(renameError, privacy: .public)") completionHandler(modifiedItem, [], false, renameError) return Progress() } guard !itemTemplateIsFolder else { Logger.fileTransfer.debug("Only handling renaming for folders. ocId: \(ocId, privacy: .public)") completionHandler(modifiedItem, [], false, nil) return Progress() } } guard !itemTemplateIsFolder else { Logger.fileTransfer.debug("System requested modification for folder with ocID \(item.itemIdentifier.rawValue, privacy: .public) (\(newServerUrlFileName, privacy: OSLogPrivacy.auto(mask: .hash))) of something other than folder name.") completionHandler(modifiedItem, [], false, nil) return Progress() } let progress = Progress() if changedFields.contains(.contents) { Logger.fileProviderExtension.debug("Item modification for \(item.itemIdentifier.rawValue, privacy: .public) \(item.filename, privacy: OSLogPrivacy.auto(mask: .hash)) includes contents") guard newContents != nil else { Logger.fileProviderExtension.warning("WARNING. Could not upload modified contents as was provided nil contents url. ocId: \(item.itemIdentifier.rawValue, privacy: .public)") completionHandler(modifiedItem, [], false, NSFileProviderError(.noSuchItem)) return Progress() } self.ncKit.upload(serverUrlFileName: newServerUrlFileName, fileNameLocalPath: fileNameLocalPath, requestHandler: { _ in }, taskHandler: { task in self.outstandingSessionTasks[newServerUrlFileName] = task NSFileProviderManager(for: self.domain)?.register(task, forItemWithIdentifier: item.itemIdentifier, completionHandler: { _ in }) }, progressHandler: { uploadProgress in uploadProgress.copyCurrentStateToProgress(progress) }) { account, ocId, etag, date, size, _, _, error in self.outstandingSessionTasks.removeValue(forKey: newServerUrlFileName) guard error == .success, let ocId = ocId/*, size == itemTemplate.documentSize as! Int64*/ else { Logger.fileTransfer.error("Could not upload item \(item.itemIdentifier.rawValue, privacy: .public) with filename: \(item.filename, privacy: OSLogPrivacy.auto(mask: .hash)), received error: \(error, privacy: .public)") completionHandler(modifiedItem, [], false, error.toFileProviderError()) return } Logger.fileProviderExtension.info("Successfully uploaded item with identifier: \(ocId, privacy: .public) and filename: \(item.filename, privacy: OSLogPrivacy.auto(mask: .hash))") let newMetadata = NextcloudItemMetadataTable() newMetadata.date = (date ?? NSDate()) as Date newMetadata.etag = etag ?? "" newMetadata.account = account newMetadata.fileName = item.filename newMetadata.fileNameView = item.filename newMetadata.ocId = ocId newMetadata.size = size newMetadata.contentType = item.contentType?.preferredMIMEType ?? "" newMetadata.directory = itemTemplateIsFolder newMetadata.serverUrl = parentItemMetadata.serverUrl newMetadata.session = "" newMetadata.sessionError = "" newMetadata.sessionTaskIdentifier = 0 newMetadata.status = NextcloudItemMetadataTable.Status.normal.rawValue dbManager.addLocalFileMetadataFromItemMetadata(newMetadata) dbManager.addItemMetadata(newMetadata) modifiedItem = FileProviderItem(metadata: newMetadata, parentItemIdentifier: parentItemIdentifier, ncKit: self.ncKit) completionHandler(modifiedItem, [], false, nil) } } else { Logger.fileProviderExtension.debug("Nothing more to do with \(item.itemIdentifier.rawValue, privacy: .public) \(item.filename, privacy: OSLogPrivacy.auto(mask: .hash)), modifications complete") completionHandler(modifiedItem, [], false, nil) } return progress } func deleteItem(identifier: NSFileProviderItemIdentifier, baseVersion version: NSFileProviderItemVersion, options: NSFileProviderDeleteItemOptions = [], request: NSFileProviderRequest, completionHandler: @escaping (Error?) -> Void) -> Progress { Logger.fileProviderExtension.debug("Received delete item request for item with identifier: \(identifier.rawValue, privacy: .public)") guard ncAccount != nil else { Logger.fileProviderExtension.error("Not deleting item: \(identifier.rawValue, privacy: .public) as account not set up yet") completionHandler(NSFileProviderError(.notAuthenticated)) return Progress() } let dbManager = NextcloudFilesDatabaseManager.shared let ocId = identifier.rawValue guard let itemMetadata = dbManager.itemMetadataFromOcId(ocId) else { completionHandler(NSFileProviderError(.noSuchItem)) return Progress() } let serverFileNameUrl = itemMetadata.serverUrl + "/" + itemMetadata.fileName guard serverFileNameUrl != "" else { completionHandler(NSFileProviderError(.noSuchItem)) return Progress() } self.ncKit.deleteFileOrFolder(serverUrlFileName: serverFileNameUrl) { account, error in guard error == .success else { Logger.fileTransfer.error("Could not delete item with ocId \(identifier.rawValue, privacy: .public) at \(serverFileNameUrl, privacy: OSLogPrivacy.auto(mask: .hash)), received error: \(error, privacy: .public)") completionHandler(error.toFileProviderError()) return } Logger.fileTransfer.info("Successfully deleted item with identifier: \(identifier.rawValue, privacy: .public) at: \(serverFileNameUrl, privacy: OSLogPrivacy.auto(mask: .hash))") if itemMetadata.directory { dbManager.deleteDirectoryAndSubdirectoriesMetadata(ocId: ocId) } if dbManager.localFileMetadataFromOcId(ocId) != nil { dbManager.deleteLocalFileMetadata(ocId: ocId) } completionHandler(nil) } return Progress() } func enumerator(for containerItemIdentifier: NSFileProviderItemIdentifier, request: NSFileProviderRequest) throws -> NSFileProviderEnumerator { guard let ncAccount = ncAccount else { Logger.fileProviderExtension.error("Not providing enumerator for container with identifier \(containerItemIdentifier.rawValue, privacy: .public) yet as account not set up") throw NSFileProviderError(.notAuthenticated) } return FileProviderEnumerator(enumeratedItemIdentifier: containerItemIdentifier, ncAccount: ncAccount, ncKit: ncKit) } func materializedItemsDidChange(completionHandler: @escaping () -> Void) { guard let ncAccount = self.ncAccount else { Logger.fileProviderExtension.error("Not purging stale local file metadatas, account not set up") completionHandler() return } guard let fpManager = NSFileProviderManager(for: domain) else { Logger.fileProviderExtension.error("Could not get file provider manager for domain: \(self.domain.displayName, privacy: OSLogPrivacy.auto(mask: .hash))") completionHandler() return } let dbManager = NextcloudFilesDatabaseManager.shared let materialisedEnumerator = fpManager.enumeratorForMaterializedItems() let materialisedObserver = FileProviderMaterialisedEnumerationObserver(ncKitAccount: ncAccount.ncKitAccount) { _ in completionHandler() } let startingPage = NSFileProviderPage(NSFileProviderPage.initialPageSortedByName as Data) materialisedEnumerator.enumerateItems(for: materialisedObserver, startingAt: startingPage) } // MARK: Nextcloud desktop client communication func sendFileProviderDomainIdentifier() { let command = "FILE_PROVIDER_DOMAIN_IDENTIFIER_REQUEST_REPLY" let argument = domain.identifier.rawValue let message = command + ":" + argument + "\n" socketClient?.sendMessage(message) } private func signalEnumeratorAfterAccountSetup() { guard let fpManager = NSFileProviderManager(for: domain) else { Logger.fileProviderExtension.error("Could not get file provider manager for domain \(self.domain.displayName, privacy: OSLogPrivacy.auto(mask: .hash)), cannot notify after account setup") return } assert(ncAccount != nil) fpManager.signalErrorResolved(NSFileProviderError(.notAuthenticated)) { error in if error != nil { Logger.fileProviderExtension.error("Error resolving not authenticated, received error: \(error!)") } } Logger.fileProviderExtension.debug("Signalling enumerators for user \(self.ncAccount!.username) at server \(self.ncAccount!.serverUrl, privacy: OSLogPrivacy.auto(mask: .hash))") fpManager.signalEnumerator(for: .workingSet) { error in if error != nil { Logger.fileProviderExtension.error("Error signalling enumerator for working set, received error: \(error, privacy: .public)") } } } func setupDomainAccount(user: String, serverUrl: String, password: String) { ncAccount = NextcloudAccount(user: user, serverUrl: serverUrl, password: password) ncKit.setup(user: ncAccount!.username, userId: ncAccount!.username, password: ncAccount!.password, urlBase: ncAccount!.serverUrl, userAgent: "Nextcloud-macOS/FileProviderExt", nextcloudVersion: 25, delegate: nil) // TODO: add delegate methods for self Logger.fileProviderExtension.info("Nextcloud account set up in File Provider extension for user: \(user, privacy: OSLogPrivacy.auto(mask: .hash)) at server: \(serverUrl, privacy: OSLogPrivacy.auto(mask: .hash))") signalEnumeratorAfterAccountSetup() } func removeAccountConfig() { Logger.fileProviderExtension.info("Received instruction to remove account data for user \(self.ncAccount!.username, privacy: OSLogPrivacy.auto(mask: .hash)) at server \(self.ncAccount!.serverUrl, privacy: OSLogPrivacy.auto(mask: .hash))") ncAccount = nil } }