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// 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 = tr("tunnelsListCenteredAddTunnelButtonTitle")
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 = tr("tunnelsListTitle")
navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(addButtonTapped(sender:)))
navigationItem.leftBarButtonItem = UIBarButtonItem(title: tr("tunnelsListSettingsButtonTitle"), 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) {
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: tr("addTunnelMenuHeader"), preferredStyle: .actionSheet)
let importFileAction = UIAlertAction(title: tr("addTunnelMenuImportFile"), style: .default) { [weak self] _ in
self?.presentViewControllerForFileImport()
}
alert.addAction(importFileAction)
let scanQRCodeAction = UIAlertAction(title: tr("addTunnelMenuQRCode"), style: .default) { [weak self] _ in
self?.presentViewControllerForScanningQRCode()
}
alert.addAction(scanQRCodeAction)
let createFromScratchAction = UIAlertAction(title: tr("addTunnelMenuFromScratch"), style: .default) { [weak self] _ in
if let self = self, let tunnelsManager = self.tunnelsManager {
self.presentViewControllerForTunnelCreation(tunnelsManager: tunnelsManager)
}
}
alert.addAction(createFromScratchAction)
let cancelAction = UIAlertAction(title: tr("actionCancel"), style: .cancel)
alert.addAction(cancelAction)
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) {
let editVC = TunnelEditTableViewController(tunnelsManager: tunnelsManager)
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 { $0 }) { [weak self] numberSuccessful in
if numberSuccessful == configs.count {
completionHandler?()
return
}
let title = tr(format: "alertImportedFromZipTitle (%d)", numberSuccessful)
let message = tr(format: "alertImportedFromZipMessage (%1$d of %2$d)", numberSuccessful, configs.count)
ErrorPresenter.showErrorAlert(title: title, message: message, 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? TunnelConfiguration(fromWgQuickConfig: fileContents, called: 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: tr("alertUnableToImportTitle"), message: tr("alertUnableToImportMessage"),
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: tr("tunnelsListSwipeDeleteButtonTitle")) { [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
}
}
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