Files
wireguard-apple/WireGuard/WireGuard/UI/iOS/SettingsTableViewController.swift
T
2018-12-12 12:28:27 -06:00

263 lines
11 KiB
Swift

// 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()
self.title = "Settings"
self.navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(doneTapped))
self.tableView.estimatedRowHeight = 44
self.tableView.rowHeight = UITableView.automaticDimension
self.tableView.allowsSelection = false
self.tableView.register(TunnelSettingsTableViewKeyValueCell.self, forCellReuseIdentifier: TunnelSettingsTableViewKeyValueCell.reuseIdentifier)
self.tableView.register(TunnelSettingsTableViewButtonCell.self, forCellReuseIdentifier: TunnelSettingsTableViewButtonCell.reuseIdentifier)
let logo = UIImageView(image: UIImage(named: "wireguard.pdf", in: Bundle.main, compatibleWith: nil)!)
logo.contentMode = .scaleAspectFit
let height = self.tableView.rowHeight * 1.5
let width = height * logo.image!.size.width / logo.image!.size.height
logo.frame = CGRect(x: 0, y: 0, width: width, height: height)
logo.bounds = logo.frame.insetBy(dx: 2, dy: 2)
self.tableView.tableFooterView = logo
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
guard let logo = self.tableView.tableFooterView else { return }
let bottomPadding = max(self.tableView.layoutMargins.bottom, CGFloat(10))
let fullHeight = max(self.tableView.contentSize.height, self.tableView.bounds.size.height - self.tableView.layoutMargins.top - bottomPadding)
let frame = logo.frame
logo.frame = CGRect(x: frame.minX, y: fullHeight - frame.height, width: frame.width, height: frame.height)
}
@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: "No log available", message: "The pre-existing log could not be cleared", from: self)
return
}
}
guard let networkExtensionLogFileURL = FileManager.networkExtensionLogFileURL,
FileManager.default.fileExists(atPath: networkExtensionLogFileURL.path) else {
ErrorPresenter.showErrorAlert(title: "No log available", message: "Please activate a tunnel and then export the log", from: self)
return
}
do {
try FileManager.default.copyItem(at: networkExtensionLogFileURL, to: destinationURL)
} catch {
os_log("Failed to copy file: %{public}@ to %{public}@: %{public}@", log: OSLog.default, type: .error,
networkExtensionLogFileURL.absoluteString, destinationURL.absoluteString, error.localizedDescription)
ErrorPresenter.showErrorAlert(title: "Log export failed", message: "The log could not be copied", 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 = tableView.dequeueReusableCell(withIdentifier: TunnelSettingsTableViewKeyValueCell.reuseIdentifier, for: indexPath) as! TunnelSettingsTableViewKeyValueCell
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 = tableView.dequeueReusableCell(withIdentifier: TunnelSettingsTableViewButtonCell.reuseIdentifier, for: indexPath) as! TunnelSettingsTableViewButtonCell
cell.buttonText = field.rawValue
cell.onTapped = { [weak self] in
self?.exportConfigurationsAsZipFile(sourceView: cell.button)
}
return cell
} else {
assert(field == .exportLogFile)
let cell = tableView.dequeueReusableCell(withIdentifier: TunnelSettingsTableViewButtonCell.reuseIdentifier, for: indexPath) as! TunnelSettingsTableViewButtonCell
cell.buttonText = field.rawValue
cell.onTapped = { [weak self] in
self?.exportLogForLastActivatedTunnel(sourceView: cell.button)
}
return cell
}
}
}
class TunnelSettingsTableViewKeyValueCell: UITableViewCell {
static let reuseIdentifier = "TunnelSettingsTableViewKeyValueCell"
var key: String {
get { return textLabel?.text ?? "" }
set(value) { textLabel?.text = value }
}
var value: String {
get { return detailTextLabel?.text ?? "" }
set(value) { detailTextLabel?.text = value }
}
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: .value1, reuseIdentifier: TunnelSettingsTableViewKeyValueCell.reuseIdentifier)
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func prepareForReuse() {
super.prepareForReuse()
key = ""
value = ""
}
}
class TunnelSettingsTableViewButtonCell: UITableViewCell {
static let reuseIdentifier = "TunnelSettingsTableViewButtonCell"
var buttonText: String {
get { return button.title(for: .normal) ?? "" }
set(value) { button.setTitle(value, for: .normal) }
}
var onTapped: (() -> Void)?
let button: UIButton
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
button = UIButton(type: .system)
button.titleLabel?.font = UIFont.preferredFont(forTextStyle: .body)
button.titleLabel?.adjustsFontForContentSizeCategory = true
super.init(style: style, reuseIdentifier: reuseIdentifier)
contentView.addSubview(button)
button.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
button.topAnchor.constraint(equalTo: contentView.layoutMarginsGuide.topAnchor),
contentView.layoutMarginsGuide.bottomAnchor.constraint(equalTo: button.bottomAnchor),
button.centerXAnchor.constraint(equalTo: contentView.centerXAnchor)
])
button.addTarget(self, action: #selector(buttonTapped), for: .touchUpInside)
}
@objc func buttonTapped() {
onTapped?()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func prepareForReuse() {
super.prepareForReuse()
buttonText = ""
onTapped = nil
}
}