diff options
Diffstat (limited to 'WireGuard/WireGuard/UI/iOS/ViewController')
6 files changed, 1543 insertions, 0 deletions
diff --git a/WireGuard/WireGuard/UI/iOS/ViewController/MainViewController.swift b/WireGuard/WireGuard/UI/iOS/ViewController/MainViewController.swift new file mode 100644 index 0000000..82e6f81 --- /dev/null +++ b/WireGuard/WireGuard/UI/iOS/ViewController/MainViewController.swift @@ -0,0 +1,129 @@ +// SPDX-License-Identifier: MIT +// Copyright © 2018 WireGuard LLC. All Rights Reserved. + +import UIKit + +class MainViewController: UISplitViewController { + + var tunnelsManager: TunnelsManager? + var onTunnelsManagerReady: ((TunnelsManager) -> Void)? + + var tunnelsListVC: TunnelsListTableViewController? + + init() { + let detailVC = UIViewController() + detailVC.view.backgroundColor = .white + let detailNC = UINavigationController(rootViewController: detailVC) + + let masterVC = TunnelsListTableViewController() + let masterNC = UINavigationController(rootViewController: masterVC) + + tunnelsListVC = masterVC + + super.init(nibName: nil, bundle: nil) + + viewControllers = [ masterNC, detailNC ] + + // State restoration + restorationIdentifier = "MainVC" + masterNC.restorationIdentifier = "MasterNC" + detailNC.restorationIdentifier = "DetailNC" + } + + required init?(coder aDecoder: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + override func viewDidLoad() { + delegate = self + + // On iPad, always show both masterVC and detailVC, even in portrait mode, like the Settings app + preferredDisplayMode = .allVisible + + // Create the tunnels manager, and when it's ready, inform tunnelsListVC + TunnelsManager.create { [weak self] result in + guard let self = self else { return } + + if let error = result.error { + ErrorPresenter.showErrorAlert(error: error, from: self) + return + } + let tunnelsManager: TunnelsManager = result.value! + + self.tunnelsManager = tunnelsManager + self.tunnelsListVC?.setTunnelsManager(tunnelsManager: tunnelsManager) + + tunnelsManager.activationDelegate = self + + self.onTunnelsManagerReady?(tunnelsManager) + self.onTunnelsManagerReady = nil + } + } +} + +extension MainViewController: TunnelsManagerActivationDelegate { + func tunnelActivationAttemptFailed(tunnel: TunnelContainer, error: TunnelsManagerActivationAttemptError) { + ErrorPresenter.showErrorAlert(error: error, from: self) + } + + func tunnelActivationAttemptSucceeded(tunnel: TunnelContainer) { + // Nothing to do + } + + func tunnelActivationFailed(tunnel: TunnelContainer, error: TunnelsManagerActivationError) { + ErrorPresenter.showErrorAlert(error: error, from: self) + } + + func tunnelActivationSucceeded(tunnel: TunnelContainer) { + // Nothing to do + } +} + +extension MainViewController { + func refreshTunnelConnectionStatuses() { + if let tunnelsManager = tunnelsManager { + tunnelsManager.refreshStatuses() + } + } + + func showTunnelDetailForTunnel(named tunnelName: String, animated: Bool) { + let showTunnelDetailBlock: (TunnelsManager) -> Void = { [weak self] tunnelsManager in + if let tunnel = tunnelsManager.tunnel(named: tunnelName) { + let tunnelDetailVC = TunnelDetailTableViewController(tunnelsManager: tunnelsManager, tunnel: tunnel) + let tunnelDetailNC = UINavigationController(rootViewController: tunnelDetailVC) + tunnelDetailNC.restorationIdentifier = "DetailNC" + if let self = self { + if animated { + self.showDetailViewController(tunnelDetailNC, sender: self) + } else { + UIView.performWithoutAnimation { + self.showDetailViewController(tunnelDetailNC, sender: self) + } + } + } + } + } + if let tunnelsManager = tunnelsManager { + showTunnelDetailBlock(tunnelsManager) + } else { + onTunnelsManagerReady = showTunnelDetailBlock + } + } +} + +extension MainViewController: UISplitViewControllerDelegate { + func splitViewController(_ splitViewController: UISplitViewController, + collapseSecondary secondaryViewController: UIViewController, + onto primaryViewController: UIViewController) -> Bool { + // On iPhone, if the secondaryVC (detailVC) is just a UIViewController, it indicates that it's empty, + // so just show the primaryVC (masterVC). + let detailVC = (secondaryViewController as? UINavigationController)?.viewControllers.first + let isDetailVCEmpty: Bool + if let detailVC = detailVC { + isDetailVCEmpty = (type(of: detailVC) == UIViewController.self) + } else { + isDetailVCEmpty = true + } + return isDetailVCEmpty + } +} diff --git a/WireGuard/WireGuard/UI/iOS/ViewController/QRScanViewController.swift b/WireGuard/WireGuard/UI/iOS/ViewController/QRScanViewController.swift new file mode 100644 index 0000000..1e231ec --- /dev/null +++ b/WireGuard/WireGuard/UI/iOS/ViewController/QRScanViewController.swift @@ -0,0 +1,159 @@ +// SPDX-License-Identifier: MIT +// Copyright © 2018 WireGuard LLC. All Rights Reserved. + +import AVFoundation +import UIKit + +protocol QRScanViewControllerDelegate: class { + func addScannedQRCode(tunnelConfiguration: TunnelConfiguration, qrScanViewController: QRScanViewController, completionHandler: (() -> Void)?) +} + +class QRScanViewController: UIViewController { + weak var delegate: QRScanViewControllerDelegate? + var captureSession: AVCaptureSession? = AVCaptureSession() + let metadataOutput = AVCaptureMetadataOutput() + var previewLayer: AVCaptureVideoPreviewLayer? + + override func viewDidLoad() { + super.viewDidLoad() + + title = "Scan QR code" + navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action: #selector(cancelTapped)) + + let tipLabel = UILabel() + tipLabel.text = "Tip: Generate with `qrencode -t ansiutf8 < tunnel.conf`" + tipLabel.adjustsFontSizeToFitWidth = true + tipLabel.textColor = .lightGray + tipLabel.textAlignment = .center + + view.addSubview(tipLabel) + tipLabel.translatesAutoresizingMaskIntoConstraints = false + NSLayoutConstraint.activate([ + tipLabel.leftAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leftAnchor), + tipLabel.rightAnchor.constraint(equalTo: view.safeAreaLayoutGuide.rightAnchor), + tipLabel.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor, constant: -32) + ]) + + guard let videoCaptureDevice = AVCaptureDevice.default(for: .video), + let videoInput = try? AVCaptureDeviceInput(device: videoCaptureDevice), + let captureSession = captureSession, + captureSession.canAddInput(videoInput), + captureSession.canAddOutput(metadataOutput) else { + scanDidEncounterError(title: "Camera Unsupported", message: "This device is not able to scan QR codes") + return + } + + captureSession.addInput(videoInput) + captureSession.addOutput(metadataOutput) + + metadataOutput.setMetadataObjectsDelegate(self, queue: .main) + metadataOutput.metadataObjectTypes = [.qr] + + let previewLayer = AVCaptureVideoPreviewLayer(session: captureSession) + previewLayer.frame = view.layer.bounds + previewLayer.videoGravity = .resizeAspectFill + view.layer.insertSublayer(previewLayer, at: 0) + self.previewLayer = previewLayer + } + + override func viewWillAppear(_ animated: Bool) { + super.viewWillAppear(animated) + + if captureSession?.isRunning == false { + captureSession?.startRunning() + } + } + + override func viewWillDisappear(_ animated: Bool) { + super.viewWillDisappear(animated) + + if captureSession?.isRunning == true { + captureSession?.stopRunning() + } + } + + override func viewDidLayoutSubviews() { + super.viewDidLayoutSubviews() + + if let connection = previewLayer?.connection { + + let currentDevice: UIDevice = UIDevice.current + + let orientation: UIDeviceOrientation = currentDevice.orientation + + let previewLayerConnection: AVCaptureConnection = connection + + if previewLayerConnection.isVideoOrientationSupported { + + switch orientation { + case .portrait: + previewLayerConnection.videoOrientation = .portrait + case .landscapeRight: + previewLayerConnection.videoOrientation = .landscapeLeft + case .landscapeLeft: + previewLayerConnection.videoOrientation = .landscapeRight + case .portraitUpsideDown: + previewLayerConnection.videoOrientation = .portraitUpsideDown + default: + previewLayerConnection.videoOrientation = .portrait + + } + } + } + + previewLayer?.frame = view.bounds + } + + func scanDidComplete(withCode code: String) { + let scannedTunnelConfiguration = try? WgQuickConfigFileParser.parse(code, name: "Scanned") + guard let tunnelConfiguration = scannedTunnelConfiguration else { + scanDidEncounterError(title: "Invalid QR Code", message: "The scanned QR code is not a valid WireGuard configuration") + return + } + + let alert = UIAlertController(title: NSLocalizedString("Please name the scanned tunnel", comment: ""), message: nil, preferredStyle: .alert) + alert.addTextField(configurationHandler: nil) + alert.addAction(UIAlertAction(title: NSLocalizedString("Cancel", comment: ""), style: .cancel) { [weak self] _ in + self?.dismiss(animated: true, completion: nil) + }) + alert.addAction(UIAlertAction(title: NSLocalizedString("Save", comment: ""), style: .default) { [weak self] _ in + guard let title = alert.textFields?[0].text?.trimmingCharacters(in: .whitespacesAndNewlines), !title.isEmpty else { return } + tunnelConfiguration.interface.name = title + if let self = self { + self.delegate?.addScannedQRCode(tunnelConfiguration: tunnelConfiguration, qrScanViewController: self) { + self.dismiss(animated: true, completion: nil) + } + } + }) + present(alert, animated: true) + } + + func scanDidEncounterError(title: String, message: String) { + let alertController = UIAlertController(title: title, message: message, preferredStyle: .alert) + alertController.addAction(UIAlertAction(title: "OK", style: .default) { [weak self] _ in + self?.dismiss(animated: true, completion: nil) + }) + present(alertController, animated: true) + captureSession = nil + } + + @objc func cancelTapped() { + dismiss(animated: true, completion: nil) + } +} + +extension QRScanViewController: AVCaptureMetadataOutputObjectsDelegate { + func metadataOutput(_ output: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from connection: AVCaptureConnection) { + captureSession?.stopRunning() + + guard let metadataObject = metadataObjects.first, + let readableObject = metadataObject as? AVMetadataMachineReadableCodeObject, + let stringValue = readableObject.stringValue else { + scanDidEncounterError(title: "Invalid Code", message: "The scanned code could not be read") + return + } + + AudioServicesPlaySystemSound(SystemSoundID(kSystemSoundID_Vibrate)) + scanDidComplete(withCode: stringValue) + } +} diff --git a/WireGuard/WireGuard/UI/iOS/ViewController/SettingsTableViewController.swift b/WireGuard/WireGuard/UI/iOS/ViewController/SettingsTableViewController.swift new file mode 100644 index 0000000..b583c5b --- /dev/null +++ b/WireGuard/WireGuard/UI/iOS/ViewController/SettingsTableViewController.swift @@ -0,0 +1,200 @@ +// SPDX-License-Identifier: MIT +// Copyright © 2018 WireGuard LLC. All Rights Reserved. + +import UIKit +import os.log + +class SettingsTableViewController: UITableViewController { + + enum SettingsFields: String { + case iosAppVersion = "WireGuard for iOS" + case goBackendVersion = "WireGuard Go Backend" + case exportZipArchive = "Export zip archive" + case exportLogFile = "Export log file" + } + + let settingsFieldsBySection: [[SettingsFields]] = [ + [.iosAppVersion, .goBackendVersion], + [.exportZipArchive], + [.exportLogFile] + ] + + let tunnelsManager: TunnelsManager? + var wireguardCaptionedImage: (view: UIView, size: CGSize)? + + init(tunnelsManager: TunnelsManager?) { + self.tunnelsManager = tunnelsManager + super.init(style: .grouped) + } + + required init?(coder aDecoder: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + override func viewDidLoad() { + super.viewDidLoad() + title = "Settings" + navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(doneTapped)) + + tableView.estimatedRowHeight = 44 + tableView.rowHeight = UITableView.automaticDimension + tableView.allowsSelection = false + + tableView.register(KeyValueCell.self) + tableView.register(ButtonCell.self) + + tableView.tableFooterView = UIImageView(image: UIImage(named: "wireguard.pdf")) + } + + override func viewDidLayoutSubviews() { + super.viewDidLayoutSubviews() + guard let logo = tableView.tableFooterView else { return } + + let bottomPadding = max(tableView.layoutMargins.bottom, 10) + let fullHeight = max(tableView.contentSize.height, tableView.bounds.size.height - tableView.layoutMargins.top - bottomPadding) + + let imageAspectRatio = logo.intrinsicContentSize.width / logo.intrinsicContentSize.height + + var height = tableView.estimatedRowHeight * 1.5 + var width = height * imageAspectRatio + let maxWidth = view.bounds.size.width - max(tableView.layoutMargins.left + tableView.layoutMargins.right, 20) + if width > maxWidth { + width = maxWidth + height = width / imageAspectRatio + } + + let needsReload = height != logo.frame.height + + logo.frame = CGRect(x: (view.bounds.size.width - width) / 2, y: fullHeight - height, width: width, height: height) + + if needsReload { + tableView.tableFooterView = logo + } + } + + @objc func doneTapped() { + dismiss(animated: true, completion: nil) + } + + func exportConfigurationsAsZipFile(sourceView: UIView) { + guard let tunnelsManager = tunnelsManager else { return } + guard let destinationDir = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else { return } + + let destinationURL = destinationDir.appendingPathComponent("wireguard-export.zip") + _ = FileManager.deleteFile(at: destinationURL) + + let count = tunnelsManager.numberOfTunnels() + let tunnelConfigurations = (0 ..< count).compactMap { tunnelsManager.tunnel(at: $0).tunnelConfiguration() } + ZipExporter.exportConfigFiles(tunnelConfigurations: tunnelConfigurations, to: destinationURL) { [weak self] error in + if let error = error { + ErrorPresenter.showErrorAlert(error: error, from: self) + return + } + + let fileExportVC = UIDocumentPickerViewController(url: destinationURL, in: .exportToService) + self?.present(fileExportVC, animated: true, completion: nil) + } + } + + func exportLogForLastActivatedTunnel(sourceView: UIView) { + guard let destinationDir = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else { return } + + let dateFormatter = ISO8601DateFormatter() + dateFormatter.formatOptions = [.withFullDate, .withTime, .withTimeZone] // Avoid ':' in the filename + let timeStampString = dateFormatter.string(from: Date()) + let destinationURL = destinationDir.appendingPathComponent("wireguard-log-\(timeStampString).txt") + + DispatchQueue.global(qos: .userInitiated).async { + + if FileManager.default.fileExists(atPath: destinationURL.path) { + let isDeleted = FileManager.deleteFile(at: destinationURL) + if !isDeleted { + ErrorPresenter.showErrorAlert(title: "Log export failed", message: "The pre-existing log could not be cleared", from: self) + return + } + } + + guard let networkExtensionLogFilePath = FileManager.networkExtensionLogFileURL?.path else { + ErrorPresenter.showErrorAlert(title: "Log export failed", message: "Unable to determine extension log path", from: self) + return + } + + let isWritten = Logger.global?.writeLog(called: "APP", mergedWith: networkExtensionLogFilePath, called: "NET", to: destinationURL.path) ?? false + guard isWritten else { + ErrorPresenter.showErrorAlert(title: "Log export failed", message: "Unable to write logs to file", from: self) + return + } + + DispatchQueue.main.async { + let activityVC = UIActivityViewController(activityItems: [destinationURL], applicationActivities: nil) + // popoverPresentationController shall be non-nil on the iPad + activityVC.popoverPresentationController?.sourceView = sourceView + activityVC.popoverPresentationController?.sourceRect = sourceView.bounds + activityVC.completionWithItemsHandler = { _, _, _, _ in + // Remove the exported log file after the activity has completed + _ = FileManager.deleteFile(at: destinationURL) + } + self.present(activityVC, animated: true) + } + } + } +} + +// MARK: UITableViewDataSource + +extension SettingsTableViewController { + override func numberOfSections(in tableView: UITableView) -> Int { + return settingsFieldsBySection.count + } + + override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { + return settingsFieldsBySection[section].count + } + + override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? { + switch section { + case 0: + return "About" + case 1: + return "Export configurations" + case 2: + return "Tunnel log" + default: + return nil + } + } + + override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { + let field = settingsFieldsBySection[indexPath.section][indexPath.row] + if field == .iosAppVersion || field == .goBackendVersion { + let cell: KeyValueCell = tableView.dequeueReusableCell(for: indexPath) + cell.copyableGesture = false + cell.key = field.rawValue + if field == .iosAppVersion { + var appVersion = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "Unknown version" + if let appBuild = Bundle.main.infoDictionary?["CFBundleVersion"] as? String { + appVersion += " (\(appBuild))" + } + cell.value = appVersion + } else if field == .goBackendVersion { + cell.value = WIREGUARD_GO_VERSION + } + return cell + } else if field == .exportZipArchive { + let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath) + cell.buttonText = field.rawValue + cell.onTapped = { [weak self] in + self?.exportConfigurationsAsZipFile(sourceView: cell.button) + } + return cell + } else { + assert(field == .exportLogFile) + let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath) + cell.buttonText = field.rawValue + cell.onTapped = { [weak self] in + self?.exportLogForLastActivatedTunnel(sourceView: cell.button) + } + return cell + } + } +} diff --git a/WireGuard/WireGuard/UI/iOS/ViewController/TunnelDetailTableViewController.swift b/WireGuard/WireGuard/UI/iOS/ViewController/TunnelDetailTableViewController.swift new file mode 100644 index 0000000..ed48d0f --- /dev/null +++ b/WireGuard/WireGuard/UI/iOS/ViewController/TunnelDetailTableViewController.swift @@ -0,0 +1,260 @@ +// SPDX-License-Identifier: MIT +// Copyright © 2018 WireGuard LLC. All Rights Reserved. + +import UIKit + +// MARK: TunnelDetailTableViewController + +class TunnelDetailTableViewController: UITableViewController { + + private enum Section { + case status + case interface + case peer(_ peer: TunnelViewModel.PeerData) + case onDemand + case delete + } + + let interfaceFields: [TunnelViewModel.InterfaceField] = [ + .name, .publicKey, .addresses, + .listenPort, .mtu, .dns + ] + + let peerFields: [TunnelViewModel.PeerField] = [ + .publicKey, .preSharedKey, .endpoint, + .allowedIPs, .persistentKeepAlive + ] + + let tunnelsManager: TunnelsManager + let tunnel: TunnelContainer + var tunnelViewModel: TunnelViewModel + private var sections = [Section]() + private var onDemandStatusObservervationToken: AnyObject? + private var statusObservervationToken: AnyObject? + + init(tunnelsManager: TunnelsManager, tunnel: TunnelContainer) { + self.tunnelsManager = tunnelsManager + self.tunnel = tunnel + tunnelViewModel = TunnelViewModel(tunnelConfiguration: tunnel.tunnelConfiguration()) + super.init(style: .grouped) + loadSections() + } + + required init?(coder aDecoder: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + deinit { + onDemandStatusObservervationToken = nil + statusObservervationToken = nil + } + + override func viewDidLoad() { + super.viewDidLoad() + title = tunnelViewModel.interfaceData[.name] + navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .edit, target: self, action: #selector(editTapped)) + + tableView.estimatedRowHeight = 44 + tableView.rowHeight = UITableView.automaticDimension + tableView.allowsSelection = false + tableView.register(SwitchCell.self) + tableView.register(KeyValueCell.self) + tableView.register(ButtonCell.self) + + // State restoration + restorationIdentifier = "TunnelDetailVC:\(tunnel.name)" + } + + private func loadSections() { + sections.removeAll() + sections.append(.status) + sections.append(.interface) + tunnelViewModel.peersData.forEach { sections.append(.peer($0)) } + sections.append(.onDemand) + sections.append(.delete) + } + + @objc func editTapped() { + let editVC = TunnelEditTableViewController(tunnelsManager: tunnelsManager, tunnel: tunnel) + editVC.delegate = self + let editNC = UINavigationController(rootViewController: editVC) + editNC.modalPresentationStyle = .formSheet + present(editNC, animated: true) + } + + func showConfirmationAlert(message: String, buttonTitle: String, from sourceView: UIView, onConfirmed: @escaping (() -> Void)) { + let destroyAction = UIAlertAction(title: buttonTitle, style: .destructive) { _ in + onConfirmed() + } + let cancelAction = UIAlertAction(title: "Cancel", style: .cancel) + let alert = UIAlertController(title: "", message: message, preferredStyle: .actionSheet) + alert.addAction(destroyAction) + alert.addAction(cancelAction) + + // popoverPresentationController will be nil on iPhone and non-nil on iPad + alert.popoverPresentationController?.sourceView = sourceView + alert.popoverPresentationController?.sourceRect = sourceView.bounds + + present(alert, animated: true, completion: nil) + } +} + +// MARK: TunnelEditTableViewControllerDelegate + +extension TunnelDetailTableViewController: TunnelEditTableViewControllerDelegate { + func tunnelSaved(tunnel: TunnelContainer) { + tunnelViewModel = TunnelViewModel(tunnelConfiguration: tunnel.tunnelConfiguration()) + loadSections() + title = tunnel.name + tableView.reloadData() + } + func tunnelEditingCancelled() { + // Nothing to do + } +} + +// MARK: UITableViewDataSource + +extension TunnelDetailTableViewController { + override func numberOfSections(in tableView: UITableView) -> Int { + return sections.count + } + + override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { + switch sections[section] { + case .status: + return 1 + case .interface: + return tunnelViewModel.interfaceData.filterFieldsWithValueOrControl(interfaceFields: interfaceFields).count + case .peer(let peerData): + return peerData.filterFieldsWithValueOrControl(peerFields: peerFields).count + case .onDemand: + return 1 + case .delete: + return 1 + } + } + + override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? { + switch sections[section] { + case .status: + return "Status" + case .interface: + return "Interface" + case .peer: + return "Peer" + case .onDemand: + return "On-Demand Activation" + case .delete: + return nil + } + } + + override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { + switch sections[indexPath.section] { + case .status: + return statusCell(for: tableView, at: indexPath) + case .interface: + return interfaceCell(for: tableView, at: indexPath) + case .peer(let peer): + return peerCell(for: tableView, at: indexPath, with: peer) + case .onDemand: + return onDemandCell(for: tableView, at: indexPath) + case .delete: + return deleteConfigurationCell(for: tableView, at: indexPath) + } + } + + private func statusCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell { + let cell: SwitchCell = tableView.dequeueReusableCell(for: indexPath) + + let statusUpdate: (SwitchCell, TunnelStatus) -> Void = { cell, status in + let text: String + switch status { + case .inactive: + text = "Inactive" + case .activating: + text = "Activating" + case .active: + text = "Active" + case .deactivating: + text = "Deactivating" + case .reasserting: + text = "Reactivating" + case .restarting: + text = "Restarting" + case .waiting: + text = "Waiting" + } + cell.textLabel?.text = text + DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(200)) { [weak cell] in + cell?.switchView.isOn = !(status == .deactivating || status == .inactive) + cell?.switchView.isUserInteractionEnabled = (status == .inactive || status == .active) + } + cell.isEnabled = status == .active || status == .inactive + } + + statusUpdate(cell, tunnel.status) + statusObservervationToken = tunnel.observe(\.status) { [weak cell] tunnel, _ in + guard let cell = cell else { return } + statusUpdate(cell, tunnel.status) + } + + cell.onSwitchToggled = { [weak self] isOn in + guard let self = self else { return } + if isOn { + self.tunnelsManager.startActivation(of: self.tunnel) + } else { + self.tunnelsManager.startDeactivation(of: self.tunnel) + } + } + return cell + } + + private func interfaceCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell { + let field = tunnelViewModel.interfaceData.filterFieldsWithValueOrControl(interfaceFields: interfaceFields)[indexPath.row] + let cell: KeyValueCell = tableView.dequeueReusableCell(for: indexPath) + cell.key = field.rawValue + cell.value = tunnelViewModel.interfaceData[field] + return cell + } + + private func peerCell(for tableView: UITableView, at indexPath: IndexPath, with peerData: TunnelViewModel.PeerData) -> UITableViewCell { + let field = peerData.filterFieldsWithValueOrControl(peerFields: peerFields)[indexPath.row] + let cell: KeyValueCell = tableView.dequeueReusableCell(for: indexPath) + cell.key = field.rawValue + cell.value = peerData[field] + return cell + } + + private func onDemandCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell { + let cell: KeyValueCell = tableView.dequeueReusableCell(for: indexPath) + cell.key = "Activate on demand" + cell.value = TunnelViewModel.activateOnDemandDetailText(for: tunnel.activateOnDemandSetting()) + onDemandStatusObservervationToken = tunnel.observe(\.isActivateOnDemandEnabled) { [weak cell] tunnel, _ in + cell?.value = TunnelViewModel.activateOnDemandDetailText(for: tunnel.activateOnDemandSetting()) + } + return cell + } + + private func deleteConfigurationCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell { + let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath) + cell.buttonText = "Delete tunnel" + cell.hasDestructiveAction = true + cell.onTapped = { [weak self] in + guard let self = self else { return } + self.showConfirmationAlert(message: "Delete this tunnel?", buttonTitle: "Delete", from: cell) { [weak self] in + guard let tunnelsManager = self?.tunnelsManager, let tunnel = self?.tunnel else { return } + tunnelsManager.remove(tunnel: tunnel) { error in + if error != nil { + print("Error removing tunnel: \(String(describing: error))") + return + } + } + self?.navigationController?.navigationController?.popToRootViewController(animated: true) + } + } + return cell + } + +} diff --git a/WireGuard/WireGuard/UI/iOS/ViewController/TunnelEditTableViewController.swift b/WireGuard/WireGuard/UI/iOS/ViewController/TunnelEditTableViewController.swift new file mode 100644 index 0000000..393294e --- /dev/null +++ b/WireGuard/WireGuard/UI/iOS/ViewController/TunnelEditTableViewController.swift @@ -0,0 +1,488 @@ +// SPDX-License-Identifier: MIT +// Copyright © 2018 WireGuard LLC. All Rights Reserved. + +import UIKit + +protocol TunnelEditTableViewControllerDelegate: class { + func tunnelSaved(tunnel: TunnelContainer) + func tunnelEditingCancelled() +} + +// MARK: TunnelEditTableViewController + +class TunnelEditTableViewController: UITableViewController { + + private enum Section { + case interface + case peer(_ peer: TunnelViewModel.PeerData) + case addPeer + case onDemand + } + + weak var delegate: TunnelEditTableViewControllerDelegate? + + let interfaceFieldsBySection: [[TunnelViewModel.InterfaceField]] = [ + [.name], + [.privateKey, .publicKey, .generateKeyPair], + [.addresses, .listenPort, .mtu, .dns] + ] + + let peerFields: [TunnelViewModel.PeerField] = [ + .publicKey, .preSharedKey, .endpoint, + .allowedIPs, .excludePrivateIPs, .persistentKeepAlive, + .deletePeer + ] + + let activateOnDemandOptions: [ActivateOnDemandOption] = [ + .useOnDemandOverWiFiOrCellular, + .useOnDemandOverWiFiOnly, + .useOnDemandOverCellularOnly + ] + + let tunnelsManager: TunnelsManager + let tunnel: TunnelContainer? + let tunnelViewModel: TunnelViewModel + var activateOnDemandSetting: ActivateOnDemandSetting + private var sections = [Section]() + + init(tunnelsManager: TunnelsManager, tunnel: TunnelContainer) { + // Use this initializer to edit an existing tunnel. + self.tunnelsManager = tunnelsManager + self.tunnel = tunnel + tunnelViewModel = TunnelViewModel(tunnelConfiguration: tunnel.tunnelConfiguration()) + activateOnDemandSetting = tunnel.activateOnDemandSetting() + super.init(style: .grouped) + loadSections() + } + + init(tunnelsManager: TunnelsManager, tunnelConfiguration: TunnelConfiguration?) { + // Use this initializer to create a new tunnel. + // If tunnelConfiguration is passed, data will be prepopulated from that configuration. + self.tunnelsManager = tunnelsManager + tunnel = nil + tunnelViewModel = TunnelViewModel(tunnelConfiguration: tunnelConfiguration) + activateOnDemandSetting = ActivateOnDemandSetting.defaultSetting + super.init(style: .grouped) + loadSections() + } + + required init?(coder aDecoder: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + override func viewDidLoad() { + super.viewDidLoad() + title = tunnel == nil ? "New configuration" : "Edit configuration" + navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .save, target: self, action: #selector(saveTapped)) + navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action: #selector(cancelTapped)) + + tableView.estimatedRowHeight = 44 + tableView.rowHeight = UITableView.automaticDimension + + tableView.register(EditableKeyValueCell.self) + tableView.register(TunnelEditReadOnlyKeyValueCell.self) + tableView.register(ButtonCell.self) + tableView.register(SwitchCell.self) + tableView.register(CheckmarkCell.self) + } + + private func loadSections() { + sections.removeAll() + interfaceFieldsBySection.forEach { _ in sections.append(.interface) } + tunnelViewModel.peersData.forEach { sections.append(.peer($0)) } + sections.append(.addPeer) + sections.append(.onDemand) + } + + @objc func saveTapped() { + tableView.endEditing(false) + let tunnelSaveResult = tunnelViewModel.save() + switch tunnelSaveResult { + case .error(let errorMessage): + let erroringConfiguration = (tunnelViewModel.interfaceData.validatedConfiguration == nil) ? "Interface" : "Peer" + ErrorPresenter.showErrorAlert(title: "Invalid \(erroringConfiguration)", message: errorMessage, from: self) + tableView.reloadData() // Highlight erroring fields + case .saved(let tunnelConfiguration): + if let tunnel = tunnel { + // We're modifying an existing tunnel + tunnelsManager.modify(tunnel: tunnel, + tunnelConfiguration: tunnelConfiguration, + activateOnDemandSetting: activateOnDemandSetting) { [weak self] error in + if let error = error { + ErrorPresenter.showErrorAlert(error: error, from: self) + } else { + self?.dismiss(animated: true, completion: nil) + self?.delegate?.tunnelSaved(tunnel: tunnel) + } + } + } else { + // We're adding a new tunnel + tunnelsManager.add(tunnelConfiguration: tunnelConfiguration, + activateOnDemandSetting: activateOnDemandSetting) { [weak self] result in + if let error = result.error { + ErrorPresenter.showErrorAlert(error: error, from: self) + } else { + let tunnel: TunnelContainer = result.value! + self?.dismiss(animated: true, completion: nil) + self?.delegate?.tunnelSaved(tunnel: tunnel) + } + } + } + } + } + + @objc func cancelTapped() { + dismiss(animated: true, completion: nil) + delegate?.tunnelEditingCancelled() + } +} + +// MARK: UITableViewDataSource + +extension TunnelEditTableViewController { + override func numberOfSections(in tableView: UITableView) -> Int { + return sections.count + } + + override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { + switch sections[section] { + case .interface: + return interfaceFieldsBySection[section].count + case .peer(let peerData): + let peerFieldsToShow = peerData.shouldAllowExcludePrivateIPsControl ? peerFields : peerFields.filter { $0 != .excludePrivateIPs } + return peerFieldsToShow.count + case .addPeer: + return 1 + case .onDemand: + if activateOnDemandSetting.isActivateOnDemandEnabled { + return 4 + } else { + return 1 + } + } + } + + override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? { + switch sections[section] { + case .interface: + return section == 0 ? "Interface" : nil + case .peer: + return "Peer" + case .addPeer: + return nil + case .onDemand: + return "On-Demand Activation" + } + } + + override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { + switch sections[indexPath.section] { + case .interface: + return interfaceFieldCell(for: tableView, at: indexPath) + case .peer(let peerData): + return peerCell(for: tableView, at: indexPath, with: peerData) + case .addPeer: + return addPeerCell(for: tableView, at: indexPath) + case .onDemand: + return onDemandCell(for: tableView, at: indexPath) + } + } + + private func interfaceFieldCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell { + let field = interfaceFieldsBySection[indexPath.section][indexPath.row] + switch field { + case .generateKeyPair: + return generateKeyPairCell(for: tableView, at: indexPath, with: field) + case .publicKey: + return publicKeyCell(for: tableView, at: indexPath, with: field) + default: + return interfaceFieldKeyValueCell(for: tableView, at: indexPath, with: field) + } + } + + private func generateKeyPairCell(for tableView: UITableView, at indexPath: IndexPath, with field: TunnelViewModel.InterfaceField) -> UITableViewCell { + let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath) + cell.buttonText = field.rawValue + cell.onTapped = { [weak self] in + guard let self = self else { return } + + self.tunnelViewModel.interfaceData[.privateKey] = Curve25519.generatePrivateKey().base64EncodedString() + if let privateKeyRow = self.interfaceFieldsBySection[indexPath.section].firstIndex(of: .privateKey), + let publicKeyRow = self.interfaceFieldsBySection[indexPath.section].firstIndex(of: .publicKey) { + let privateKeyIndex = IndexPath(row: privateKeyRow, section: indexPath.section) + let publicKeyIndex = IndexPath(row: publicKeyRow, section: indexPath.section) + self.tableView.reloadRows(at: [privateKeyIndex, publicKeyIndex], with: .fade) + } + } + return cell + } + + private func publicKeyCell(for tableView: UITableView, at indexPath: IndexPath, with field: TunnelViewModel.InterfaceField) -> UITableViewCell { + let cell: TunnelEditReadOnlyKeyValueCell = tableView.dequeueReusableCell(for: indexPath) + cell.key = field.rawValue + cell.value = tunnelViewModel.interfaceData[field] + return cell + } + + private func interfaceFieldKeyValueCell(for tableView: UITableView, at indexPath: IndexPath, with field: TunnelViewModel.InterfaceField) -> UITableViewCell { + let cell: EditableKeyValueCell = tableView.dequeueReusableCell(for: indexPath) + cell.key = field.rawValue + + switch field { + case .name, .privateKey: + cell.placeholderText = "Required" + cell.keyboardType = .default + case .addresses, .dns: + cell.placeholderText = "Optional" + cell.keyboardType = .numbersAndPunctuation + case .listenPort, .mtu: + cell.placeholderText = "Automatic" + cell.keyboardType = .numberPad + case .publicKey, .generateKeyPair: + cell.keyboardType = .default + } + + cell.isValueValid = (!tunnelViewModel.interfaceData.fieldsWithError.contains(field)) + // Bind values to view model + cell.value = tunnelViewModel.interfaceData[field] + if field == .dns { // While editing DNS, you might directly set exclude private IPs + cell.onValueChanged = nil + cell.onValueBeingEdited = { [weak self] value in + self?.tunnelViewModel.interfaceData[field] = value + } + } else { + cell.onValueChanged = { [weak self] value in + self?.tunnelViewModel.interfaceData[field] = value + } + cell.onValueBeingEdited = nil + } + // Compute public key live + if field == .privateKey { + cell.onValueBeingEdited = { [weak self] value in + guard let self = self else { return } + + self.tunnelViewModel.interfaceData[.privateKey] = value + if let row = self.interfaceFieldsBySection[indexPath.section].firstIndex(of: .publicKey) { + self.tableView.reloadRows(at: [IndexPath(row: row, section: indexPath.section)], with: .none) + } + } + } else { + cell.onValueBeingEdited = nil + } + return cell + } + + private func peerCell(for tableView: UITableView, at indexPath: IndexPath, with peerData: TunnelViewModel.PeerData) -> UITableViewCell { + let peerFieldsToShow = peerData.shouldAllowExcludePrivateIPsControl ? peerFields : peerFields.filter { $0 != .excludePrivateIPs } + let field = peerFieldsToShow[indexPath.row] + + switch field { + case .deletePeer: + return deletePeerCell(for: tableView, at: indexPath, peerData: peerData, field: field) + case .excludePrivateIPs: + return excludePrivateIPsCell(for: tableView, at: indexPath, peerData: peerData, field: field) + default: + return peerFieldKeyValueCell(for: tableView, at: indexPath, peerData: peerData, field: field) + } + } + + private func deletePeerCell(for tableView: UITableView, at indexPath: IndexPath, peerData: TunnelViewModel.PeerData, field: TunnelViewModel.PeerField) -> UITableViewCell { + let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath) + cell.buttonText = field.rawValue + cell.hasDestructiveAction = true + cell.onTapped = { [weak self, weak peerData] in + guard let peerData = peerData else { return } + guard let self = self else { return } + self.showConfirmationAlert(message: "Delete this peer?", buttonTitle: "Delete", from: cell) { [weak self] in + guard let self = self else { return } + let removedSectionIndices = self.deletePeer(peer: peerData) + let shouldShowExcludePrivateIPs = (self.tunnelViewModel.peersData.count == 1 && self.tunnelViewModel.peersData[0].shouldAllowExcludePrivateIPsControl) + tableView.performBatchUpdates({ + self.tableView.deleteSections(removedSectionIndices, with: .fade) + if shouldShowExcludePrivateIPs { + if let row = self.peerFields.firstIndex(of: .excludePrivateIPs) { + let rowIndexPath = IndexPath(row: row, section: self.interfaceFieldsBySection.count /* First peer section */) + self.tableView.insertRows(at: [rowIndexPath], with: .fade) + } + + } + }) + } + } + return cell + } + + private func excludePrivateIPsCell(for tableView: UITableView, at indexPath: IndexPath, peerData: TunnelViewModel.PeerData, field: TunnelViewModel.PeerField) -> UITableViewCell { + let cell: SwitchCell = tableView.dequeueReusableCell(for: indexPath) + cell.message = field.rawValue + cell.isEnabled = peerData.shouldAllowExcludePrivateIPsControl + cell.isOn = peerData.excludePrivateIPsValue + cell.onSwitchToggled = { [weak self] isOn in + guard let self = self else { return } + peerData.excludePrivateIPsValueChanged(isOn: isOn, dnsServers: self.tunnelViewModel.interfaceData[.dns]) + if let row = self.peerFields.firstIndex(of: .allowedIPs) { + self.tableView.reloadRows(at: [IndexPath(row: row, section: indexPath.section)], with: .none) + } + } + return cell + } + + private func peerFieldKeyValueCell(for tableView: UITableView, at indexPath: IndexPath, peerData: TunnelViewModel.PeerData, field: TunnelViewModel.PeerField) -> UITableViewCell { + let cell: EditableKeyValueCell = tableView.dequeueReusableCell(for: indexPath) + cell.key = field.rawValue + + switch field { + case .publicKey: + cell.placeholderText = "Required" + cell.keyboardType = .default + case .preSharedKey, .endpoint: + cell.placeholderText = "Optional" + cell.keyboardType = .default + case .allowedIPs: + cell.placeholderText = "Optional" + cell.keyboardType = .numbersAndPunctuation + case .persistentKeepAlive: + cell.placeholderText = "Off" + cell.keyboardType = .numberPad + case .excludePrivateIPs, .deletePeer: + cell.keyboardType = .default + } + + cell.isValueValid = !peerData.fieldsWithError.contains(field) + cell.value = peerData[field] + + if field == .allowedIPs { + cell.onValueBeingEdited = { [weak self, weak peerData] value in + guard let self = self, let peerData = peerData else { return } + + let oldValue = peerData.shouldAllowExcludePrivateIPsControl + peerData[.allowedIPs] = value + if oldValue != peerData.shouldAllowExcludePrivateIPsControl { + if let row = self.peerFields.firstIndex(of: .excludePrivateIPs) { + if peerData.shouldAllowExcludePrivateIPsControl { + self.tableView.insertRows(at: [IndexPath(row: row, section: indexPath.section)], with: .fade) + } else { + self.tableView.deleteRows(at: [IndexPath(row: row, section: indexPath.section)], with: .fade) + } + } + } + } + } else { + cell.onValueChanged = { [weak peerData] value in + peerData?[field] = value + } + } + + return cell + } + + private func addPeerCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell { + let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath) + cell.buttonText = "Add peer" + cell.onTapped = { [weak self] in + guard let self = self else { return } + let shouldHideExcludePrivateIPs = (self.tunnelViewModel.peersData.count == 1 && self.tunnelViewModel.peersData[0].shouldAllowExcludePrivateIPsControl) + let addedSectionIndices = self.appendEmptyPeer() + tableView.performBatchUpdates({ + tableView.insertSections(addedSectionIndices, with: .fade) + if shouldHideExcludePrivateIPs { + if let row = self.peerFields.firstIndex(of: .excludePrivateIPs) { + let rowIndexPath = IndexPath(row: row, section: self.interfaceFieldsBySection.count /* First peer section */) + self.tableView.deleteRows(at: [rowIndexPath], with: .fade) + } + } + }, completion: nil) + } + return cell + } + + private func onDemandCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell { + if indexPath.row == 0 { + let cell: SwitchCell = tableView.dequeueReusableCell(for: indexPath) + cell.message = "Activate on demand" + cell.isOn = activateOnDemandSetting.isActivateOnDemandEnabled + cell.onSwitchToggled = { [weak self] isOn in + guard let self = self else { return } + let indexPaths = (1 ..< 4).map { IndexPath(row: $0, section: indexPath.section) } + if isOn { + self.activateOnDemandSetting.isActivateOnDemandEnabled = true + if self.activateOnDemandSetting.activateOnDemandOption == .none { + self.activateOnDemandSetting.activateOnDemandOption = TunnelViewModel.defaultActivateOnDemandOption() + } + self.loadSections() + self.tableView.insertRows(at: indexPaths, with: .fade) + } else { + self.activateOnDemandSetting.isActivateOnDemandEnabled = false + self.loadSections() + self.tableView.deleteRows(at: indexPaths, with: .fade) + } + } + return cell + } else { + let cell: CheckmarkCell = tableView.dequeueReusableCell(for: indexPath) + let rowOption = activateOnDemandOptions[indexPath.row - 1] + let selectedOption = activateOnDemandSetting.activateOnDemandOption + assert(selectedOption != .none) + cell.message = TunnelViewModel.activateOnDemandOptionText(for: rowOption) + cell.isChecked = (selectedOption == rowOption) + return cell + } + } + + func appendEmptyPeer() -> IndexSet { + tunnelViewModel.appendEmptyPeer() + loadSections() + let addedPeerIndex = tunnelViewModel.peersData.count - 1 + return IndexSet(integer: interfaceFieldsBySection.count + addedPeerIndex) + } + + func deletePeer(peer: TunnelViewModel.PeerData) -> IndexSet { + tunnelViewModel.deletePeer(peer: peer) + loadSections() + return IndexSet(integer: interfaceFieldsBySection.count + peer.index) + } + + func showConfirmationAlert(message: String, buttonTitle: String, from sourceView: UIView, onConfirmed: @escaping (() -> Void)) { + let destroyAction = UIAlertAction(title: buttonTitle, style: .destructive) { _ in + onConfirmed() + } + let cancelAction = UIAlertAction(title: "Cancel", style: .cancel) + let alert = UIAlertController(title: "", message: message, preferredStyle: .actionSheet) + alert.addAction(destroyAction) + alert.addAction(cancelAction) + + // popoverPresentationController will be nil on iPhone and non-nil on iPad + alert.popoverPresentationController?.sourceView = sourceView + alert.popoverPresentationController?.sourceRect = sourceView.bounds + + present(alert, animated: true, completion: nil) + } +} + +// MARK: UITableViewDelegate + +extension TunnelEditTableViewController { + override func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? { + if case .onDemand = sections[indexPath.section], indexPath.row > 0 { + return indexPath + } else { + return nil + } + } + + override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { + switch sections[indexPath.section] { + case .onDemand: + let option = activateOnDemandOptions[indexPath.row - 1] + assert(option != .none) + activateOnDemandSetting.activateOnDemandOption = option + + let indexPaths = (1 ..< 4).map { IndexPath(row: $0, section: indexPath.section) } + UIView.performWithoutAnimation { + tableView.reloadRows(at: indexPaths, with: .none) + } + default: + assertionFailure() + } + } +} diff --git a/WireGuard/WireGuard/UI/iOS/ViewController/TunnelsListTableViewController.swift b/WireGuard/WireGuard/UI/iOS/ViewController/TunnelsListTableViewController.swift new file mode 100644 index 0000000..0188c62 --- /dev/null +++ b/WireGuard/WireGuard/UI/iOS/ViewController/TunnelsListTableViewController.swift @@ -0,0 +1,307 @@ +// SPDX-License-Identifier: MIT +// Copyright © 2018 WireGuard LLC. All Rights Reserved. + +import UIKit +import MobileCoreServices +import UserNotifications + +class TunnelsListTableViewController: UIViewController { + + var tunnelsManager: TunnelsManager? + + let tableView: UITableView = { + let tableView = UITableView(frame: CGRect.zero, style: .plain) + tableView.estimatedRowHeight = 60 + tableView.rowHeight = UITableView.automaticDimension + tableView.separatorStyle = .none + tableView.register(TunnelListCell.self) + return tableView + }() + + let centeredAddButton: BorderedTextButton = { + let button = BorderedTextButton() + button.title = "Add a tunnel" + button.isHidden = true + return button + }() + + let busyIndicator: UIActivityIndicatorView = { + let busyIndicator = UIActivityIndicatorView(style: .gray) + busyIndicator.hidesWhenStopped = true + return busyIndicator + }() + + override func loadView() { + view = UIView() + view.backgroundColor = .white + + tableView.dataSource = self + tableView.delegate = self + + view.addSubview(tableView) + tableView.translatesAutoresizingMaskIntoConstraints = false + NSLayoutConstraint.activate([ + tableView.leftAnchor.constraint(equalTo: view.leftAnchor), + tableView.rightAnchor.constraint(equalTo: view.rightAnchor), + tableView.topAnchor.constraint(equalTo: view.topAnchor), + tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor) + ]) + + view.addSubview(busyIndicator) + busyIndicator.translatesAutoresizingMaskIntoConstraints = false + NSLayoutConstraint.activate([ + busyIndicator.centerXAnchor.constraint(equalTo: view.centerXAnchor), + busyIndicator.centerYAnchor.constraint(equalTo: view.centerYAnchor) + ]) + + view.addSubview(centeredAddButton) + centeredAddButton.translatesAutoresizingMaskIntoConstraints = false + NSLayoutConstraint.activate([ + centeredAddButton.centerXAnchor.constraint(equalTo: view.centerXAnchor), + centeredAddButton.centerYAnchor.constraint(equalTo: view.centerYAnchor) + ]) + + centeredAddButton.onTapped = { [weak self] in + guard let self = self else { return } + self.addButtonTapped(sender: self.centeredAddButton) + } + + busyIndicator.startAnimating() + } + + override func viewDidLoad() { + super.viewDidLoad() + + title = "WireGuard" + navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(addButtonTapped(sender:))) + navigationItem.leftBarButtonItem = UIBarButtonItem(title: "Settings", style: .plain, target: self, action: #selector(settingsButtonTapped(sender:))) + + restorationIdentifier = "TunnelsListVC" + } + + func setTunnelsManager(tunnelsManager: TunnelsManager) { + self.tunnelsManager = tunnelsManager + tunnelsManager.tunnelsListDelegate = self + + busyIndicator.stopAnimating() + tableView.reloadData() + centeredAddButton.isHidden = tunnelsManager.numberOfTunnels() > 0 + } + + override func viewWillAppear(_: Bool) { + // Remove selection when getting back to the list view on iPhone + if let selectedRowIndexPath = tableView.indexPathForSelectedRow { + tableView.deselectRow(at: selectedRowIndexPath, animated: false) + } + } + + @objc func addButtonTapped(sender: AnyObject) { + guard tunnelsManager != nil else { return } + + let alert = UIAlertController(title: "", message: "Add a new WireGuard tunnel", preferredStyle: .actionSheet) + let importFileAction = UIAlertAction(title: "Create from file or archive", style: .default) { [weak self] _ in + self?.presentViewControllerForFileImport() + } + alert.addAction(importFileAction) + + let scanQRCodeAction = UIAlertAction(title: "Create from QR code", style: .default) { [weak self] _ in + self?.presentViewControllerForScanningQRCode() + } + alert.addAction(scanQRCodeAction) + + let createFromScratchAction = UIAlertAction(title: "Create from scratch", style: .default) { [weak self] _ in + if let self = self, let tunnelsManager = self.tunnelsManager { + self.presentViewControllerForTunnelCreation(tunnelsManager: tunnelsManager, tunnelConfiguration: nil) + } + } + alert.addAction(createFromScratchAction) + + let cancelAction = UIAlertAction(title: "Cancel", style: .cancel) + alert.addAction(cancelAction) + + // popoverPresentationController will be nil on iPhone and non-nil on iPad + if let sender = sender as? UIBarButtonItem { + alert.popoverPresentationController?.barButtonItem = sender + } else if let sender = sender as? UIView { + alert.popoverPresentationController?.sourceView = sender + alert.popoverPresentationController?.sourceRect = sender.bounds + } + present(alert, animated: true, completion: nil) + } + + @objc func settingsButtonTapped(sender: UIBarButtonItem!) { + guard tunnelsManager != nil else { return } + + let settingsVC = SettingsTableViewController(tunnelsManager: tunnelsManager) + let settingsNC = UINavigationController(rootViewController: settingsVC) + settingsNC.modalPresentationStyle = .formSheet + present(settingsNC, animated: true) + } + + func presentViewControllerForTunnelCreation(tunnelsManager: TunnelsManager, tunnelConfiguration: TunnelConfiguration?) { + let editVC = TunnelEditTableViewController(tunnelsManager: tunnelsManager, tunnelConfiguration: tunnelConfiguration) + let editNC = UINavigationController(rootViewController: editVC) + editNC.modalPresentationStyle = .formSheet + present(editNC, animated: true) + } + + func presentViewControllerForFileImport() { + let documentTypes = ["com.wireguard.config.quick", String(kUTTypeText), String(kUTTypeZipArchive)] + let filePicker = UIDocumentPickerViewController(documentTypes: documentTypes, in: .import) + filePicker.delegate = self + present(filePicker, animated: true) + } + + func presentViewControllerForScanningQRCode() { + let scanQRCodeVC = QRScanViewController() + scanQRCodeVC.delegate = self + let scanQRCodeNC = UINavigationController(rootViewController: scanQRCodeVC) + scanQRCodeNC.modalPresentationStyle = .fullScreen + present(scanQRCodeNC, animated: true) + } + + func importFromFile(url: URL, completionHandler: (() -> Void)?) { + guard let tunnelsManager = tunnelsManager else { return } + if url.pathExtension == "zip" { + ZipImporter.importConfigFiles(from: url) { [weak self] result in + if let error = result.error { + ErrorPresenter.showErrorAlert(error: error, from: self) + return + } + let configs = result.value! + tunnelsManager.addMultiple(tunnelConfigurations: configs.compactMap { $0 }) { [weak self] numberSuccessful in + if numberSuccessful == configs.count { + completionHandler?() + return + } + ErrorPresenter.showErrorAlert(title: "Created \(numberSuccessful) tunnels", + message: "Created \(numberSuccessful) of \(configs.count) tunnels from zip archive", + from: self, onPresented: completionHandler) + } + } + } else /* if (url.pathExtension == "conf") -- we assume everything else is a conf */ { + let fileBaseName = url.deletingPathExtension().lastPathComponent.trimmingCharacters(in: .whitespacesAndNewlines) + if let fileContents = try? String(contentsOf: url), + let tunnelConfiguration = try? WgQuickConfigFileParser.parse(fileContents, name: fileBaseName) { + tunnelsManager.add(tunnelConfiguration: tunnelConfiguration) { [weak self] result in + if let error = result.error { + ErrorPresenter.showErrorAlert(error: error, from: self, onPresented: completionHandler) + } else { + completionHandler?() + } + } + } else { + ErrorPresenter.showErrorAlert(title: "Unable to import tunnel", + message: "An error occured when importing the tunnel configuration.", + from: self, onPresented: completionHandler) + } + } + } +} + +// MARK: UIDocumentPickerDelegate + +extension TunnelsListTableViewController: UIDocumentPickerDelegate { + func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) { + urls.forEach { + importFromFile(url: $0, completionHandler: nil) + } + } +} + +// MARK: QRScanViewControllerDelegate + +extension TunnelsListTableViewController: QRScanViewControllerDelegate { + func addScannedQRCode(tunnelConfiguration: TunnelConfiguration, qrScanViewController: QRScanViewController, + completionHandler: (() -> Void)?) { + tunnelsManager?.add(tunnelConfiguration: tunnelConfiguration) { result in + if let error = result.error { + ErrorPresenter.showErrorAlert(error: error, from: qrScanViewController, onDismissal: completionHandler) + } else { + completionHandler?() + } + } + } +} + +// MARK: UITableViewDataSource + +extension TunnelsListTableViewController: UITableViewDataSource { + func numberOfSections(in tableView: UITableView) -> Int { + return 1 + } + + func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { + return (tunnelsManager?.numberOfTunnels() ?? 0) + } + + func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { + let cell: TunnelListCell = tableView.dequeueReusableCell(for: indexPath) + if let tunnelsManager = tunnelsManager { + let tunnel = tunnelsManager.tunnel(at: indexPath.row) + cell.tunnel = tunnel + cell.onSwitchToggled = { [weak self] isOn in + guard let self = self, let tunnelsManager = self.tunnelsManager else { return } + if isOn { + tunnelsManager.startActivation(of: tunnel) + } else { + tunnelsManager.startDeactivation(of: tunnel) + } + } + } + return cell + } +} + +// MARK: UITableViewDelegate + +extension TunnelsListTableViewController: UITableViewDelegate { + func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { + guard let tunnelsManager = tunnelsManager else { return } + let tunnel = tunnelsManager.tunnel(at: indexPath.row) + let tunnelDetailVC = TunnelDetailTableViewController(tunnelsManager: tunnelsManager, + tunnel: tunnel) + let tunnelDetailNC = UINavigationController(rootViewController: tunnelDetailVC) + tunnelDetailNC.restorationIdentifier = "DetailNC" + showDetailViewController(tunnelDetailNC, sender: self) // Shall get propagated up to the split-vc + } + + func tableView(_ tableView: UITableView, + trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? { + let deleteAction = UIContextualAction(style: .destructive, title: "Delete") { [weak self] _, _, completionHandler in + guard let tunnelsManager = self?.tunnelsManager else { return } + let tunnel = tunnelsManager.tunnel(at: indexPath.row) + tunnelsManager.remove(tunnel: tunnel) { error in + if error != nil { + ErrorPresenter.showErrorAlert(error: error!, from: self) + completionHandler(false) + } else { + completionHandler(true) + } + } + } + return UISwipeActionsConfiguration(actions: [deleteAction]) + } +} + +// MARK: TunnelsManagerDelegate + +extension TunnelsListTableViewController: TunnelsManagerListDelegate { + func tunnelAdded(at index: Int) { + tableView.insertRows(at: [IndexPath(row: index, section: 0)], with: .automatic) + centeredAddButton.isHidden = (tunnelsManager?.numberOfTunnels() ?? 0 > 0) + } + + func tunnelModified(at index: Int) { + tableView.reloadRows(at: [IndexPath(row: index, section: 0)], with: .automatic) + } + + func tunnelMoved(from oldIndex: Int, to newIndex: Int) { + tableView.moveRow(at: IndexPath(row: oldIndex, section: 0), to: IndexPath(row: newIndex, section: 0)) + } + + func tunnelRemoved(at index: Int) { + tableView.deleteRows(at: [IndexPath(row: index, section: 0)], with: .automatic) + centeredAddButton.isHidden = tunnelsManager?.numberOfTunnels() ?? 0 > 0 + } +} |