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// SPDX-License-Identifier: MIT
// Copyright © 2018-2019 WireGuard LLC. All Rights Reserved.
import Cocoa
class TunnelDetailTableViewController: NSViewController {
private enum TableViewModelRow {
case interfaceFieldRow(TunnelViewModel.InterfaceField)
case peerFieldRow(peer: TunnelViewModel.PeerData, field: TunnelViewModel.PeerField)
case onDemandRow
case spacerRow
func localizedSectionKeyString() -> String {
switch self {
case .interfaceFieldRow: return tr("tunnelSectionTitleInterface")
case .peerFieldRow: return tr("tunnelSectionTitlePeer")
case .onDemandRow: return ""
case .spacerRow: return ""
}
}
func isTitleRow() -> Bool {
switch self {
case .interfaceFieldRow(let field): return field == .name
case .peerFieldRow(_, let field): return field == .publicKey
case .onDemandRow: return true
case .spacerRow: return false
}
}
}
static let interfaceFields: [TunnelViewModel.InterfaceField] = [
.name, .publicKey, .addresses,
.listenPort, .mtu, .dns
]
static let peerFields: [TunnelViewModel.PeerField] = [
.publicKey, .preSharedKey, .endpoint,
.allowedIPs, .persistentKeepAlive,
.rxBytes, .txBytes, .lastHandshakeTime
]
let tableView: NSTableView = {
let tableView = NSTableView()
tableView.addTableColumn(NSTableColumn(identifier: NSUserInterfaceItemIdentifier("TunnelDetail")))
tableView.headerView = nil
tableView.rowSizeStyle = .medium
tableView.backgroundColor = .clear
tableView.selectionHighlightStyle = .none
return tableView
}()
let statusCheckbox: NSButton = {
let checkbox = NSButton()
checkbox.title = ""
checkbox.setButtonType(.switch)
checkbox.state = .off
checkbox.toolTip = "Toggle status (⌘T)"
return checkbox
}()
let editButton: NSButton = {
let button = NSButton()
button.title = tr("Edit")
button.setButtonType(.momentaryPushIn)
button.bezelStyle = .rounded
button.toolTip = "Edit tunnel (⌘E)"
return button
}()
let box: NSBox = {
let box = NSBox()
box.titlePosition = .noTitle
box.fillColor = .unemphasizedSelectedContentBackgroundColor
return box
}()
let tunnelsManager: TunnelsManager
let tunnel: TunnelContainer
var tunnelViewModel: TunnelViewModel {
didSet {
updateTableViewModelRowsBySection()
updateTableViewModelRows()
}
}
private var tableViewModelRowsBySection = [[(isVisible: Bool, modelRow: TableViewModelRow)]]()
private var tableViewModelRows = [TableViewModelRow]()
private var statusObservationToken: AnyObject?
private var tunnelEditVC: TunnelEditViewController?
private var reloadRuntimeConfigurationTimer: Timer?
init(tunnelsManager: TunnelsManager, tunnel: TunnelContainer) {
self.tunnelsManager = tunnelsManager
self.tunnel = tunnel
tunnelViewModel = TunnelViewModel(tunnelConfiguration: tunnel.tunnelConfiguration)
super.init(nibName: nil, bundle: nil)
updateTableViewModelRowsBySection()
updateTableViewModelRows()
updateStatus()
statusObservationToken = tunnel.observe(\TunnelContainer.status) { [weak self] _, _ in
self?.updateStatus()
}
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func loadView() {
tableView.dataSource = self
tableView.delegate = self
statusCheckbox.target = self
statusCheckbox.action = #selector(statusCheckboxToggled(sender:))
editButton.target = self
editButton.action = #selector(handleEditTunnelAction)
let clipView = NSClipView()
clipView.documentView = tableView
let scrollView = NSScrollView()
scrollView.contentView = clipView // Set contentView before setting drawsBackground
scrollView.drawsBackground = false
scrollView.hasVerticalScroller = true
scrollView.autohidesScrollers = true
let containerView = NSView()
let bottomControlsContainer = NSLayoutGuide()
containerView.addLayoutGuide(bottomControlsContainer)
containerView.addSubview(box)
containerView.addSubview(scrollView)
containerView.addSubview(statusCheckbox)
containerView.addSubview(editButton)
box.translatesAutoresizingMaskIntoConstraints = false
scrollView.translatesAutoresizingMaskIntoConstraints = false
statusCheckbox.translatesAutoresizingMaskIntoConstraints = false
editButton.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
containerView.topAnchor.constraint(equalTo: scrollView.topAnchor),
containerView.leadingAnchor.constraint(equalTo: scrollView.leadingAnchor),
containerView.trailingAnchor.constraint(equalTo: scrollView.trailingAnchor),
containerView.leadingAnchor.constraint(equalTo: bottomControlsContainer.leadingAnchor),
containerView.trailingAnchor.constraint(equalTo: bottomControlsContainer.trailingAnchor),
bottomControlsContainer.heightAnchor.constraint(equalToConstant: 32),
scrollView.bottomAnchor.constraint(equalTo: bottomControlsContainer.topAnchor),
bottomControlsContainer.bottomAnchor.constraint(equalTo: containerView.bottomAnchor),
statusCheckbox.leadingAnchor.constraint(equalTo: bottomControlsContainer.leadingAnchor),
bottomControlsContainer.bottomAnchor.constraint(equalTo: statusCheckbox.bottomAnchor, constant: 4),
editButton.trailingAnchor.constraint(equalTo: bottomControlsContainer.trailingAnchor),
bottomControlsContainer.bottomAnchor.constraint(equalTo: editButton.bottomAnchor, constant: 4)
])
NSLayoutConstraint.activate([
scrollView.topAnchor.constraint(equalTo: box.topAnchor),
scrollView.bottomAnchor.constraint(equalTo: box.bottomAnchor),
scrollView.leadingAnchor.constraint(equalTo: box.leadingAnchor),
scrollView.trailingAnchor.constraint(equalTo: box.trailingAnchor)
])
view = containerView
}
func updateTableViewModelRowsBySection() {
var modelRowsBySection = [[(isVisible: Bool, modelRow: TableViewModelRow)]]()
var interfaceSection = [(isVisible: Bool, modelRow: TableViewModelRow)]()
for field in TunnelDetailTableViewController.interfaceFields {
interfaceSection.append((isVisible: !tunnelViewModel.interfaceData[field].isEmpty, modelRow: .interfaceFieldRow(field)))
}
interfaceSection.append((isVisible: true, modelRow: .spacerRow))
modelRowsBySection.append(interfaceSection)
for peerData in tunnelViewModel.peersData {
var peerSection = [(isVisible: Bool, modelRow: TableViewModelRow)]()
for field in TunnelDetailTableViewController.peerFields {
peerSection.append((isVisible: !peerData[field].isEmpty, modelRow: .peerFieldRow(peer: peerData, field: field)))
}
peerSection.append((isVisible: true, modelRow: .spacerRow))
modelRowsBySection.append(peerSection)
}
var onDemandSection = [(isVisible: Bool, modelRow: TableViewModelRow)]()
onDemandSection.append((isVisible: true, modelRow: .onDemandRow))
modelRowsBySection.append(onDemandSection)
tableViewModelRowsBySection = modelRowsBySection
}
func updateTableViewModelRows() {
tableViewModelRows = tableViewModelRowsBySection.flatMap { $0.filter { $0.isVisible }.map { $0.modelRow } }
}
func updateStatus() {
let statusText: String
switch tunnel.status {
case .waiting:
statusText = tr("tunnelStatusWaiting")
case .inactive:
statusText = tr("tunnelStatusInactive")
case .activating:
statusText = tr("tunnelStatusActivating")
case .active:
statusText = tr("tunnelStatusActive")
case .deactivating:
statusText = tr("tunnelStatusDeactivating")
case .reasserting:
statusText = tr("tunnelStatusReasserting")
case .restarting:
statusText = tr("tunnelStatusRestarting")
}
statusCheckbox.title = tr(format: "macStatus (%@)", statusText)
let shouldBeChecked = (tunnel.status != .inactive && tunnel.status != .deactivating)
let shouldBeEnabled = (tunnel.status == .active || tunnel.status == .inactive)
statusCheckbox.state = shouldBeChecked ? .on : .off
statusCheckbox.isEnabled = shouldBeEnabled
if tunnel.status == .active {
startUpdatingRuntimeConfiguration()
} else if tunnel.status == .inactive {
reloadRuntimeConfiguration()
stopUpdatingRuntimeConfiguration()
}
}
@objc func handleEditTunnelAction() {
PrivateDataConfirmation.confirmAccess(to: tr("macViewPrivateData")) { [weak self] in
guard let self = self else { return }
let tunnelEditVC = TunnelEditViewController(tunnelsManager: self.tunnelsManager, tunnel: self.tunnel)
tunnelEditVC.delegate = self
self.presentAsSheet(tunnelEditVC)
self.tunnelEditVC = tunnelEditVC
}
}
@objc func handleToggleActiveStatusAction() {
if tunnel.status == .inactive {
tunnelsManager.startActivation(of: tunnel)
} else if tunnel.status == .active {
tunnelsManager.startDeactivation(of: tunnel)
}
}
@objc func statusCheckboxToggled(sender: AnyObject?) {
guard let statusCheckbox = sender as? NSButton else { return }
if statusCheckbox.state == .on {
tunnelsManager.startActivation(of: tunnel)
} else if statusCheckbox.state == .off {
tunnelsManager.startDeactivation(of: tunnel)
}
}
override func viewWillDisappear() {
super.viewWillDisappear()
if let tunnelEditVC = tunnelEditVC {
dismiss(tunnelEditVC)
}
stopUpdatingRuntimeConfiguration()
}
func applyTunnelConfiguration(tunnelConfiguration: TunnelConfiguration) {
// Incorporates changes from tunnelConfiguation. Ignores any changes in peer ordering.
let tableView = self.tableView
func handleSectionFieldsModified<T>(fields: [T], modelRowsInSection: [(isVisible: Bool, modelRow: TableViewModelRow)], rowOffset: Int, changes: [T: TunnelViewModel.Changes.FieldChange]) {
var modifiedRowIndices = IndexSet()
for (index, field) in fields.enumerated() {
guard let change = changes[field] else { continue }
if case .modified(_) = change {
let row = modelRowsInSection[0 ..< index].filter { $0.isVisible }.count
modifiedRowIndices.insert(rowOffset + row)
}
}
if !modifiedRowIndices.isEmpty {
tableView.reloadData(forRowIndexes: modifiedRowIndices, columnIndexes: IndexSet(integer: 0))
}
}
func handleSectionFieldsAddedOrRemoved<T>(fields: [T], modelRowsInSection: inout [(isVisible: Bool, modelRow: TableViewModelRow)], rowOffset: Int, changes: [T: TunnelViewModel.Changes.FieldChange]) {
for (index, field) in fields.enumerated() {
guard let change = changes[field] else { continue }
let row = modelRowsInSection[0 ..< index].filter { $0.isVisible }.count
switch change {
case .added:
tableView.insertRows(at: IndexSet(integer: rowOffset + row), withAnimation: .effectFade)
modelRowsInSection[index].isVisible = true
case .removed:
tableView.removeRows(at: IndexSet(integer: rowOffset + row), withAnimation: .effectFade)
modelRowsInSection[index].isVisible = false
case .modified:
break
}
}
}
let changes = self.tunnelViewModel.applyConfiguration(other: tunnelConfiguration)
if !changes.interfaceChanges.isEmpty {
handleSectionFieldsModified(fields: TunnelDetailTableViewController.interfaceFields,
modelRowsInSection: self.tableViewModelRowsBySection[0],
rowOffset: 0, changes: changes.interfaceChanges)
}
for (peerIndex, peerChanges) in changes.peerChanges {
let sectionIndex = 1 + peerIndex
let rowOffset = self.tableViewModelRowsBySection[0 ..< sectionIndex].flatMap { $0.filter { $0.isVisible } }.count
handleSectionFieldsModified(fields: TunnelDetailTableViewController.peerFields,
modelRowsInSection: self.tableViewModelRowsBySection[sectionIndex],
rowOffset: rowOffset, changes: peerChanges)
}
let isAnyInterfaceFieldAddedOrRemoved = changes.interfaceChanges.contains { $0.value == .added || $0.value == .removed }
let isAnyPeerFieldAddedOrRemoved = changes.peerChanges.contains { $0.changes.contains { $0.value == .added || $0.value == .removed } }
if isAnyInterfaceFieldAddedOrRemoved || isAnyPeerFieldAddedOrRemoved || !changes.peersRemovedIndices.isEmpty || !changes.peersInsertedIndices.isEmpty {
tableView.beginUpdates()
if isAnyInterfaceFieldAddedOrRemoved {
handleSectionFieldsAddedOrRemoved(fields: TunnelDetailTableViewController.interfaceFields,
modelRowsInSection: &self.tableViewModelRowsBySection[0],
rowOffset: 0, changes: changes.interfaceChanges)
}
if isAnyPeerFieldAddedOrRemoved {
for (peerIndex, peerChanges) in changes.peerChanges {
let sectionIndex = 1 + peerIndex
let rowOffset = self.tableViewModelRowsBySection[0 ..< sectionIndex].flatMap { $0.filter { $0.isVisible } }.count
handleSectionFieldsAddedOrRemoved(fields: TunnelDetailTableViewController.peerFields, modelRowsInSection: &self.tableViewModelRowsBySection[sectionIndex], rowOffset: rowOffset, changes: peerChanges)
}
}
if !changes.peersRemovedIndices.isEmpty {
for peerIndex in changes.peersRemovedIndices {
let sectionIndex = 1 + peerIndex
let rowOffset = self.tableViewModelRowsBySection[0 ..< sectionIndex].flatMap { $0.filter { $0.isVisible } }.count
let count = self.tableViewModelRowsBySection[sectionIndex].filter { $0.isVisible }.count
self.tableView.removeRows(at: IndexSet(integersIn: rowOffset ..< rowOffset + count), withAnimation: .effectFade)
self.tableViewModelRowsBySection.remove(at: sectionIndex)
}
}
if !changes.peersInsertedIndices.isEmpty {
for peerIndex in changes.peersInsertedIndices {
let peerData = self.tunnelViewModel.peersData[peerIndex]
let sectionIndex = 1 + peerIndex
let rowOffset = self.tableViewModelRowsBySection[0 ..< sectionIndex].flatMap { $0.filter { $0.isVisible } }.count
var modelRowsInSection: [(isVisible: Bool, modelRow: TableViewModelRow)] = TunnelDetailTableViewController.peerFields.map {
(isVisible: !peerData[$0].isEmpty, modelRow: .peerFieldRow(peer: peerData, field: $0))
}
modelRowsInSection.append((isVisible: true, modelRow: .spacerRow))
let count = modelRowsInSection.filter { $0.isVisible }.count
self.tableView.insertRows(at: IndexSet(integersIn: rowOffset ..< rowOffset + count), withAnimation: .effectFade)
self.tableViewModelRowsBySection.insert(modelRowsInSection, at: sectionIndex)
}
}
updateTableViewModelRows()
tableView.endUpdates()
}
}
private func reloadRuntimeConfiguration() {
tunnel.getRuntimeTunnelConfiguration { [weak self] tunnelConfiguration in
guard let tunnelConfiguration = tunnelConfiguration else { return }
self?.applyTunnelConfiguration(tunnelConfiguration: tunnelConfiguration)
}
}
func startUpdatingRuntimeConfiguration() {
reloadRuntimeConfiguration()
reloadRuntimeConfigurationTimer?.invalidate()
let reloadTimer = Timer(timeInterval: 1 /* second */, repeats: true) { [weak self] _ in
self?.reloadRuntimeConfiguration()
}
reloadRuntimeConfigurationTimer = reloadTimer
RunLoop.main.add(reloadTimer, forMode: .common)
}
func stopUpdatingRuntimeConfiguration() {
reloadRuntimeConfiguration()
reloadRuntimeConfigurationTimer?.invalidate()
reloadRuntimeConfigurationTimer = nil
}
}
extension TunnelDetailTableViewController: NSTableViewDataSource {
func numberOfRows(in tableView: NSTableView) -> Int {
return tableViewModelRows.count
}
}
extension TunnelDetailTableViewController: NSTableViewDelegate {
func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {
let modelRow = tableViewModelRows[row]
switch modelRow {
case .interfaceFieldRow(let field):
let cell: KeyValueRow = tableView.dequeueReusableCell()
let localizedKeyString = modelRow.isTitleRow() ? modelRow.localizedSectionKeyString() : field.localizedUIString
cell.key = tr(format: "macFieldKey (%@)", localizedKeyString)
cell.value = tunnelViewModel.interfaceData[field]
cell.isKeyInBold = modelRow.isTitleRow()
return cell
case .peerFieldRow(let peerData, let field):
let cell: KeyValueRow = tableView.dequeueReusableCell()
let localizedKeyString = modelRow.isTitleRow() ? modelRow.localizedSectionKeyString() : field.localizedUIString
cell.key = tr(format: "macFieldKey (%@)", localizedKeyString)
if field == .persistentKeepAlive {
cell.value = tr(format: "tunnelPeerPersistentKeepaliveValue (%@)", peerData[field])
} else if field == .preSharedKey {
cell.value = tr("tunnelPeerPresharedKeyEnabled")
} else {
cell.value = peerData[field]
}
cell.isKeyInBold = modelRow.isTitleRow()
return cell
case .spacerRow:
return NSView()
case .onDemandRow:
let cell: KeyValueRow = tableView.dequeueReusableCell()
cell.key = tr("macFieldOnDemand")
cell.value = TunnelViewModel.activateOnDemandDetailText(for: tunnel.activateOnDemandSetting)
cell.isKeyInBold = true
return cell
}
}
}
extension TunnelDetailTableViewController: TunnelEditViewControllerDelegate {
func tunnelSaved(tunnel: TunnelContainer) {
tunnelViewModel = TunnelViewModel(tunnelConfiguration: tunnel.tunnelConfiguration)
updateTableViewModelRowsBySection()
updateTableViewModelRows()
updateStatus()
tableView.reloadData()
self.tunnelEditVC = nil
}
func tunnelEditingCancelled() {
self.tunnelEditVC = nil
}
}
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