Reorganized project structure
Signed-off-by: Eric Kuck <eric@bluelinelabs.com>
This commit is contained in:
Eric Kuck
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// SPDX-License-Identifier: MIT
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// Copyright © 2018 WireGuard LLC. All Rights Reserved.
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import UIKit
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import os.log
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class SettingsTableViewController: UITableViewController {
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enum SettingsFields: String {
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case iosAppVersion = "WireGuard for iOS"
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case goBackendVersion = "WireGuard Go Backend"
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case exportZipArchive = "Export zip archive"
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case exportLogFile = "Export log file"
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}
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let settingsFieldsBySection: [[SettingsFields]] = [
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[.iosAppVersion, .goBackendVersion],
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[.exportZipArchive],
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[.exportLogFile]
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]
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let tunnelsManager: TunnelsManager?
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var wireguardCaptionedImage: (view: UIView, size: CGSize)?
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init(tunnelsManager: TunnelsManager?) {
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self.tunnelsManager = tunnelsManager
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super.init(style: .grouped)
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}
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required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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title = "Settings"
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navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(doneTapped))
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tableView.estimatedRowHeight = 44
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tableView.rowHeight = UITableView.automaticDimension
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tableView.allowsSelection = false
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tableView.register(KeyValueCell.self)
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tableView.register(ButtonCell.self)
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tableView.tableFooterView = UIImageView(image: UIImage(named: "wireguard.pdf"))
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}
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override func viewDidLayoutSubviews() {
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super.viewDidLayoutSubviews()
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guard let logo = tableView.tableFooterView else { return }
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let bottomPadding = max(tableView.layoutMargins.bottom, 10)
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let fullHeight = max(tableView.contentSize.height, tableView.bounds.size.height - tableView.layoutMargins.top - bottomPadding)
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let imageAspectRatio = logo.intrinsicContentSize.width / logo.intrinsicContentSize.height
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var height = tableView.estimatedRowHeight * 1.5
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var width = height * imageAspectRatio
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let maxWidth = view.bounds.size.width - max(tableView.layoutMargins.left + tableView.layoutMargins.right, 20)
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if width > maxWidth {
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width = maxWidth
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height = width / imageAspectRatio
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}
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let needsReload = height != logo.frame.height
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logo.frame = CGRect(x: (view.bounds.size.width - width) / 2, y: fullHeight - height, width: width, height: height)
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if needsReload {
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tableView.tableFooterView = logo
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}
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}
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@objc func doneTapped() {
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dismiss(animated: true, completion: nil)
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}
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func exportConfigurationsAsZipFile(sourceView: UIView) {
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guard let tunnelsManager = tunnelsManager else { return }
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guard let destinationDir = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else { return }
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let destinationURL = destinationDir.appendingPathComponent("wireguard-export.zip")
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_ = FileManager.deleteFile(at: destinationURL)
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let count = tunnelsManager.numberOfTunnels()
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let tunnelConfigurations = (0 ..< count).compactMap { tunnelsManager.tunnel(at: $0).tunnelConfiguration() }
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ZipExporter.exportConfigFiles(tunnelConfigurations: tunnelConfigurations, to: destinationURL) { [weak self] error in
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if let error = error {
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ErrorPresenter.showErrorAlert(error: error, from: self)
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return
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}
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let fileExportVC = UIDocumentPickerViewController(url: destinationURL, in: .exportToService)
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self?.present(fileExportVC, animated: true, completion: nil)
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}
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}
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func exportLogForLastActivatedTunnel(sourceView: UIView) {
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guard let destinationDir = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else { return }
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let dateFormatter = ISO8601DateFormatter()
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dateFormatter.formatOptions = [.withFullDate, .withTime, .withTimeZone] // Avoid ':' in the filename
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let timeStampString = dateFormatter.string(from: Date())
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let destinationURL = destinationDir.appendingPathComponent("wireguard-log-\(timeStampString).txt")
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DispatchQueue.global(qos: .userInitiated).async {
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if FileManager.default.fileExists(atPath: destinationURL.path) {
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let isDeleted = FileManager.deleteFile(at: destinationURL)
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if !isDeleted {
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ErrorPresenter.showErrorAlert(title: "Log export failed", message: "The pre-existing log could not be cleared", from: self)
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return
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}
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}
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guard let networkExtensionLogFilePath = FileManager.networkExtensionLogFileURL?.path else {
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ErrorPresenter.showErrorAlert(title: "Log export failed", message: "Unable to determine extension log path", from: self)
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return
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}
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let isWritten = Logger.global?.writeLog(called: "APP", mergedWith: networkExtensionLogFilePath, called: "NET", to: destinationURL.path) ?? false
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guard isWritten else {
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ErrorPresenter.showErrorAlert(title: "Log export failed", message: "Unable to write logs to file", from: self)
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return
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}
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DispatchQueue.main.async {
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let activityVC = UIActivityViewController(activityItems: [destinationURL], applicationActivities: nil)
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// popoverPresentationController shall be non-nil on the iPad
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activityVC.popoverPresentationController?.sourceView = sourceView
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activityVC.popoverPresentationController?.sourceRect = sourceView.bounds
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activityVC.completionWithItemsHandler = { _, _, _, _ in
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// Remove the exported log file after the activity has completed
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_ = FileManager.deleteFile(at: destinationURL)
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}
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self.present(activityVC, animated: true)
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}
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}
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}
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}
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// MARK: UITableViewDataSource
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extension SettingsTableViewController {
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override func numberOfSections(in tableView: UITableView) -> Int {
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return settingsFieldsBySection.count
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}
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override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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return settingsFieldsBySection[section].count
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}
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override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
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switch section {
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case 0:
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return "About"
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case 1:
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return "Export configurations"
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case 2:
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return "Tunnel log"
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default:
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return nil
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}
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}
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override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
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let field = settingsFieldsBySection[indexPath.section][indexPath.row]
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if field == .iosAppVersion || field == .goBackendVersion {
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let cell: KeyValueCell = tableView.dequeueReusableCell(for: indexPath)
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cell.copyableGesture = false
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cell.key = field.rawValue
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if field == .iosAppVersion {
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var appVersion = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "Unknown version"
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if let appBuild = Bundle.main.infoDictionary?["CFBundleVersion"] as? String {
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appVersion += " (\(appBuild))"
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}
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cell.value = appVersion
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} else if field == .goBackendVersion {
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cell.value = WIREGUARD_GO_VERSION
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}
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return cell
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} else if field == .exportZipArchive {
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let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath)
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cell.buttonText = field.rawValue
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cell.onTapped = { [weak self] in
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self?.exportConfigurationsAsZipFile(sourceView: cell.button)
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}
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return cell
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} else {
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assert(field == .exportLogFile)
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let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath)
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cell.buttonText = field.rawValue
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cell.onTapped = { [weak self] in
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self?.exportLogForLastActivatedTunnel(sourceView: cell.button)
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}
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return cell
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}
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}
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}
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