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// SPDX-License-Identifier: MIT
// Copyright © 2018-2020 WireGuard LLC. All Rights Reserved.
import UIKit
import os.log
class SettingsTableViewController: UITableViewController {
enum SettingsFields {
case iosAppVersion
case goBackendVersion
case exportZipArchive
case viewLog
var localizedUIString: String {
switch self {
case .iosAppVersion: return tr("settingsVersionKeyWireGuardForIOS")
case .goBackendVersion: return tr("settingsVersionKeyWireGuardGoBackend")
case .exportZipArchive: return tr("settingsExportZipButtonTitle")
case .viewLog: return tr("settingsViewLogButtonTitle")
}
}
}
let settingsFieldsBySection: [[SettingsFields]] = [
[.iosAppVersion, .goBackendVersion],
[.exportZipArchive],
[.viewLog]
]
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 = tr("settingsViewTitle")
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) {
PrivateDataConfirmation.confirmAccess(to: tr("iosExportPrivateData")) { [weak self] in
guard let self = self else { return }
guard let tunnelsManager = self.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 presentLogView() {
let logVC = LogViewController()
navigationController?.pushViewController(logVC, animated: true)
}
}
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 tr("settingsSectionTitleAbout")
case 1:
return tr("settingsSectionTitleExportConfigurations")
case 2:
return tr("settingsSectionTitleTunnelLog")
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.localizedUIString
if field == .iosAppVersion {
var appVersion = Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") as? String ?? "Unknown version"
if let appBuild = Bundle.main.object(forInfoDictionaryKey: "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.localizedUIString
cell.onTapped = { [weak self] in
self?.exportConfigurationsAsZipFile(sourceView: cell.button)
}
return cell
} else if field == .viewLog {
let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath)
cell.buttonText = field.localizedUIString
cell.onTapped = { [weak self] in
self?.presentLogView()
}
return cell
}
fatalError()
}
}
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