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// SPDX-License-Identifier: MIT
// Copyright © 2018 WireGuard LLC. All rights reserved.
import UIKit
class TunnelsListTableViewController: UITableViewController {
var tunnelsManager: TunnelsManager? = nil
var onTunnelsManagerReady: ((TunnelsManager) -> Void)? = nil
init() {
super.init(style: .plain)
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func viewDidLoad() {
super.viewDidLoad()
self.title = "WireGuard"
let addButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(addButtonTapped(sender:)))
self.navigationItem.rightBarButtonItem = addButtonItem
self.tableView.register(TunnelsListTableViewCell.self, forCellReuseIdentifier: TunnelsListTableViewCell.id)
TunnelsManager.create { [weak self] tunnelsManager in
guard let tunnelsManager = tunnelsManager else { return }
if let s = self {
tunnelsManager.delegate = s
s.tunnelsManager = tunnelsManager
s.onTunnelsManagerReady?(tunnelsManager)
s.onTunnelsManagerReady = nil
s.tableView.reloadData()
}
}
}
@objc func addButtonTapped(sender: UIBarButtonItem!) {
let alert = UIAlertController(title: "",
message: "Add a tunnel",
preferredStyle: .actionSheet)
alert.addAction(
UIAlertAction(title: "Create from scratch", style: .default) { [weak self] (action) in
if let s = self, let tunnelsManager = s.tunnelsManager {
s.presentViewControllerForTunnelCreation(tunnelsManager: tunnelsManager, tunnelConfiguration: nil)
}
}
)
alert.addAction(
UIAlertAction(title: "Cancel", style: .cancel)
)
// popoverPresentationController will be nil on iPhone and non-nil on iPad
alert.popoverPresentationController?.barButtonItem = self.navigationItem.rightBarButtonItem
self.present(alert, animated: true, completion: nil)
}
func openForEditing(configFileURL: URL) {
let tunnelConfiguration: TunnelConfiguration?
let name = configFileURL.deletingPathExtension().lastPathComponent
do {
let fileContents = try String(contentsOf: configFileURL)
try tunnelConfiguration = WgQuickConfigFileParser.parse(fileContents)
} catch {
showErrorAlert(title: "Could not import config", message: "There was an error importing the config file")
return
}
tunnelConfiguration?.interface.name = name
if let tunnelsManager = tunnelsManager {
presentViewControllerForTunnelCreation(tunnelsManager: tunnelsManager, tunnelConfiguration: tunnelConfiguration)
} else {
onTunnelsManagerReady = { [weak self] tunnelsManager in
self?.presentViewControllerForTunnelCreation(tunnelsManager: tunnelsManager, tunnelConfiguration: tunnelConfiguration)
}
}
}
func presentViewControllerForTunnelCreation(tunnelsManager: TunnelsManager, tunnelConfiguration: TunnelConfiguration?) {
let editVC = TunnelEditTableViewController(tunnelsManager: tunnelsManager, tunnelConfiguration: tunnelConfiguration)
editVC.delegate = self
let editNC = UINavigationController(rootViewController: editVC)
editNC.modalPresentationStyle = .formSheet
self.present(editNC, animated: true)
}
func showErrorAlert(title: String, message: String) {
let okAction = UIAlertAction(title: "Ok", style: .default)
let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
alert.addAction(okAction)
self.present(alert, animated: true, completion: nil)
}
}
// MARK: TunnelEditTableViewControllerDelegate
extension TunnelsListTableViewController: TunnelEditTableViewControllerDelegate {
func tunnelSaved(tunnel: TunnelContainer) {
guard let tunnelsManager = tunnelsManager else { return }
let tunnelDetailVC = TunnelDetailTableViewController(tunnelsManager: tunnelsManager,
tunnel: tunnel)
let tunnelDetailNC = UINavigationController(rootViewController: tunnelDetailVC)
showDetailViewController(tunnelDetailNC, sender: self) // Shall get propagated up to the split-vc
}
func tunnelEditingCancelled() {
// Nothing to do here
}
}
// MARK: UITableViewDataSource
extension TunnelsListTableViewController {
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return (tunnelsManager?.numberOfTunnels() ?? 0)
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: TunnelsListTableViewCell.id, for: indexPath) as! TunnelsListTableViewCell
if let tunnelsManager = tunnelsManager {
let tunnel = tunnelsManager.tunnel(at: indexPath.row)
cell.tunnelName = tunnel.name
}
return cell
}
}
// MARK: UITableViewDelegate
extension TunnelsListTableViewController {
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
guard let tunnelsManager = tunnelsManager else { return }
let tunnel = tunnelsManager.tunnel(at: indexPath.row)
let tunnelDetailVC = TunnelDetailTableViewController(tunnelsManager: tunnelsManager,
tunnel: tunnel)
let tunnelDetailNC = UINavigationController(rootViewController: tunnelDetailVC)
showDetailViewController(tunnelDetailNC, sender: self) // Shall get propagated up to the split-vc
}
}
// MARK: TunnelsManagerDelegate
extension TunnelsListTableViewController: TunnelsManagerDelegate {
func tunnelsAdded(atIndex index: Int, numberOfTunnels: Int) {
self.tableView.insertRows(at: [IndexPath(row: index, section: 0)], with: .automatic)
}
}
class TunnelsListTableViewCell: UITableViewCell {
static let id: String = "TunnelsListTableViewCell"
var tunnelName: String {
get { return textLabel?.text ?? "" }
set(value) { textLabel?.text = value }
}
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.accessoryType = .disclosureIndicator
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func prepareForReuse() {
super.prepareForReuse()
}
}
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