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// SPDX-License-Identifier: MIT
// Copyright © 2018-2019 WireGuard LLC. All Rights Reserved.
import Cocoa
protocol TunnelEditViewControllerDelegate: class {
func tunnelSaved(tunnel: TunnelContainer)
func tunnelEditingCancelled()
}
class TunnelEditViewController: NSViewController {
let nameRow: EditableKeyValueRow = {
let nameRow = EditableKeyValueRow()
nameRow.key = tr(format: "macFieldKey (%@)", TunnelViewModel.InterfaceField.name.localizedUIString)
return nameRow
}()
let publicKeyRow: KeyValueRow = {
let publicKeyRow = KeyValueRow()
publicKeyRow.key = tr(format: "macFieldKey (%@)", TunnelViewModel.InterfaceField.publicKey.localizedUIString)
return publicKeyRow
}()
let textView: ConfTextView = {
let textView = ConfTextView()
let minWidth: CGFloat = 120
let minHeight: CGFloat = 0
textView.minSize = NSSize(width: 0, height: minHeight)
textView.maxSize = NSSize(width: CGFloat.greatestFiniteMagnitude, height: CGFloat.greatestFiniteMagnitude)
textView.autoresizingMask = [.width] // Width should be based on superview width
textView.isHorizontallyResizable = false // Width shouldn't be based on content
textView.isVerticallyResizable = true // Height should be based on content
if let textContainer = textView.textContainer {
textContainer.size = NSSize(width: minWidth, height: CGFloat.greatestFiniteMagnitude)
textContainer.widthTracksTextView = true
}
NSLayoutConstraint.activate([
textView.widthAnchor.constraint(greaterThanOrEqualToConstant: minWidth),
textView.heightAnchor.constraint(greaterThanOrEqualToConstant: minHeight)
])
return textView
}()
let onDemandRow: PopupRow = {
let popupRow = PopupRow()
popupRow.key = tr("macFieldOnDemand")
return popupRow
}()
let scrollView: NSScrollView = {
let scrollView = NSScrollView()
scrollView.hasVerticalScroller = true
scrollView.autohidesScrollers = true
scrollView.borderType = .bezelBorder
return scrollView
}()
let discardButton: NSButton = {
let button = NSButton()
button.title = tr("macEditDiscard")
button.setButtonType(.momentaryPushIn)
button.bezelStyle = .rounded
return button
}()
let saveButton: NSButton = {
let button = NSButton()
button.title = tr("macEditSave")
button.setButtonType(.momentaryPushIn)
button.bezelStyle = .rounded
return button
}()
let activateOnDemandOptions: [ActivateOnDemandOption] = [
.none,
.useOnDemandOverWiFiOrEthernet,
.useOnDemandOverWiFiOnly,
.useOnDemandOverEthernetOnly
]
let tunnelsManager: TunnelsManager
let tunnel: TunnelContainer?
weak var delegate: TunnelEditViewControllerDelegate?
var privateKeyObservationToken: AnyObject?
var hasErrorObservationToken: AnyObject?
init(tunnelsManager: TunnelsManager, tunnel: TunnelContainer?) {
self.tunnelsManager = tunnelsManager
self.tunnel = tunnel
super.init(nibName: nil, bundle: nil)
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func populateTextFields() {
let selectedActivateOnDemandOption: ActivateOnDemandOption
if let tunnel = tunnel {
// Editing an existing tunnel
let tunnelConfiguration = tunnel.tunnelConfiguration!
nameRow.value = tunnel.name
textView.string = tunnelConfiguration.asWgQuickConfig()
publicKeyRow.value = tunnelConfiguration.interface.publicKey.base64Key() ?? ""
textView.privateKeyString = tunnelConfiguration.interface.privateKey.base64Key() ?? ""
if tunnel.activateOnDemandSetting.isActivateOnDemandEnabled {
selectedActivateOnDemandOption = tunnel.activateOnDemandSetting.activateOnDemandOption
} else {
selectedActivateOnDemandOption = .none
}
} else {
// Creating a new tunnel
let privateKey = Curve25519.generatePrivateKey()
let publicKey = Curve25519.generatePublicKey(fromPrivateKey: privateKey)
let bootstrappingText = "[Interface]\nPrivateKey = \(privateKey.base64Key() ?? "")\n"
publicKeyRow.value = publicKey.base64Key() ?? ""
textView.string = bootstrappingText
selectedActivateOnDemandOption = .none
}
privateKeyObservationToken = textView.observe(\.privateKeyString) { [weak publicKeyRow] textView, _ in
if let privateKeyString = textView.privateKeyString,
let privateKey = Data(base64Key: privateKeyString),
privateKey.count == TunnelConfiguration.keyLength {
let publicKey = Curve25519.generatePublicKey(fromPrivateKey: privateKey)
publicKeyRow?.value = publicKey.base64Key() ?? ""
} else {
publicKeyRow?.value = ""
}
}
hasErrorObservationToken = textView.observe(\.hasError) { [weak saveButton] textView, _ in
saveButton?.isEnabled = !textView.hasError
}
onDemandRow.valueOptions = activateOnDemandOptions.map { TunnelViewModel.activateOnDemandOptionText(for: $0) }
onDemandRow.selectedOptionIndex = activateOnDemandOptions.firstIndex(of: selectedActivateOnDemandOption)!
}
override func loadView() {
populateTextFields()
scrollView.documentView = textView
saveButton.target = self
saveButton.action = #selector(handleSaveAction)
discardButton.target = self
discardButton.action = #selector(handleDiscardAction)
let margin: CGFloat = 20
let internalSpacing: CGFloat = 10
let editorStackView = NSStackView(views: [nameRow, publicKeyRow, onDemandRow, scrollView])
editorStackView.orientation = .vertical
editorStackView.setHuggingPriority(.defaultHigh, for: .horizontal)
editorStackView.spacing = internalSpacing
let buttonRowStackView = NSStackView()
buttonRowStackView.setViews([discardButton, saveButton], in: .trailing)
buttonRowStackView.orientation = .horizontal
buttonRowStackView.spacing = internalSpacing
let containerView = NSStackView(views: [editorStackView, buttonRowStackView])
containerView.orientation = .vertical
containerView.edgeInsets = NSEdgeInsets(top: margin, left: margin, bottom: margin, right: margin)
containerView.setHuggingPriority(.defaultHigh, for: .horizontal)
containerView.spacing = internalSpacing
NSLayoutConstraint.activate([
containerView.widthAnchor.constraint(greaterThanOrEqualToConstant: 180),
containerView.heightAnchor.constraint(greaterThanOrEqualToConstant: 240)
])
containerView.frame = NSRect(x: 0, y: 0, width: 600, height: 480)
self.view = containerView
}
@objc func handleSaveAction() {
let name = nameRow.value
guard !name.isEmpty else {
ErrorPresenter.showErrorAlert(title: tr("macAlertNameIsEmpty"), message: "", from: self)
return
}
let onDemandSetting: ActivateOnDemandSetting
let onDemandOption = activateOnDemandOptions[onDemandRow.selectedOptionIndex]
if onDemandOption == .none {
onDemandSetting = ActivateOnDemandSetting.defaultSetting
} else {
onDemandSetting = ActivateOnDemandSetting(isActivateOnDemandEnabled: true, activateOnDemandOption: onDemandOption)
}
let isTunnelModifiedWithoutChangingName = (tunnel != nil && tunnel!.name == name)
guard isTunnelModifiedWithoutChangingName || tunnelsManager.tunnel(named: name) == nil else {
ErrorPresenter.showErrorAlert(title: tr(format: "macAlertDuplicateName (%@)", name), message: "", from: self)
return
}
let tunnelConfiguration: TunnelConfiguration
do {
tunnelConfiguration = try TunnelConfiguration(fromWgQuickConfig: textView.string, called: nameRow.value)
} catch let error as WireGuardAppError {
ErrorPresenter.showErrorAlert(error: error, from: self)
return
} catch {
fatalError()
}
if let tunnel = tunnel {
// We're modifying an existing tunnel
tunnelsManager.modify(tunnel: tunnel, tunnelConfiguration: tunnelConfiguration, activateOnDemandSetting: onDemandSetting) { [weak self] error in
if let error = error {
ErrorPresenter.showErrorAlert(error: error, from: self)
return
}
self?.dismiss(self)
self?.delegate?.tunnelSaved(tunnel: tunnel)
}
} else {
// We're creating a new tunnel
AppStorePrivacyNotice.show(from: self, into: tunnelsManager) { [weak self] in
self?.tunnelsManager.add(tunnelConfiguration: tunnelConfiguration, activateOnDemandSetting: onDemandSetting) { [weak self] result in
if let error = result.error {
ErrorPresenter.showErrorAlert(error: error, from: self)
return
}
let tunnel: TunnelContainer = result.value!
self?.dismiss(self)
self?.delegate?.tunnelSaved(tunnel: tunnel)
}
}
}
}
@objc func handleDiscardAction() {
delegate?.tunnelEditingCancelled()
dismiss(self)
}
}
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