Add settings screen. Move export as zip to settings screen.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

WireGuard/ViewControllers/SetttingsTableViewController.swift

@@ -0,0 +1,65 @@
+//
+//  Copyright © 2018 WireGuard LLC. All rights reserved.
+//
+
+import UIKit
+
+protocol SettingsTableViewControllerDelegate: class {
+    func exportTunnels(settingsTableViewController: SettingsTableViewController, sourceView: UIView)
+}
+
+class SettingsTableViewController: UITableViewController {
+
+    weak var delegate: SettingsTableViewControllerDelegate?
+    @IBOutlet weak var versionInfoCell: UITableViewCell!
+    @IBOutlet weak var goVersionInfoCell: UITableViewCell!
+    @IBOutlet weak var exportCell: UITableViewCell!
+
+    @IBOutlet weak var versionInfoLabel: UILabel!
+    @IBOutlet weak var goVersionInfoLabel: UILabel!
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        versionInfoLabel.text = versionInformation
+        goVersionInfoLabel.text = goVersionInformation
+    }
+
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        if let cell = tableView.cellForRow(at: indexPath) {
+            switch cell {
+            case versionInfoCell, goVersionInfoCell:
+                UIPasteboard.general.string = ["WireGuard for iOS:", versionInformation, "Go userspace backend:", goVersionInformation].joined(separator: "\n")
+                showCopyConfirmation()
+            case exportCell:
+                delegate?.exportTunnels(settingsTableViewController: self, sourceView: exportCell)
+            default:
+                ()
+            }
+            tableView.deselectRow(at: indexPath, animated: true)
+        }
+    }
+
+    var versionInformation: String {
+        var versionElements: [String] = []
+        if let appBuildNumber = Bundle.main.infoDictionary!["CFBundleVersion"] as? String, let appVersion = Bundle.main.infoDictionary!["CFBundleShortVersionString"] as? String {
+            versionElements.append(appVersion)
+            versionElements.append("(\(appBuildNumber))")
+        }
+
+        return versionElements.joined(separator: " ")
+    }
+
+    var goVersionInformation: String {
+        return wgVersion().flatMap { String(cString: $0) } ?? ""
+    }
+
+    private func showCopyConfirmation() {
+        let confirmationAlertController = UIAlertController(title: NSLocalizedString("Copied version information", comment: ""), message: UIPasteboard.general.string, preferredStyle: .alert)
+        confirmationAlertController.addAction(UIAlertAction(title: NSLocalizedString("Ok", comment: "Generic OK button"), style: .default, handler: nil))
+
+        present(confirmationAlertController, animated: true, completion: nil)
+
+    }
+}
+
+extension SettingsTableViewController: Identifyable {}

WireGuard/ViewControllers/TunnelConfigurationTableViewController.swift

@@ -9,13 +9,12 @@ import PromiseKit
 
 protocol TunnelConfigurationTableViewControllerDelegate: class {
     func didSave(tunnel: Tunnel, tunnelConfigurationTableViewController: TunnelConfigurationTableViewController)
-    func export(tunnel: Tunnel, barButtonItem: UIBarButtonItem)
+    func showSettings()
 }
 
 class TunnelConfigurationTableViewController: UITableViewController {
 
     @IBOutlet weak var saveButton: UIBarButtonItem!
-    @IBOutlet weak var exportButton: UIBarButtonItem!
 
     private var viewContext: NSManagedObjectContext!
     private weak var delegate: TunnelConfigurationTableViewControllerDelegate?
@@ -41,6 +40,10 @@ class TunnelConfigurationTableViewController: UITableViewController {
         return tunnel
     }
 
+    @IBAction func showSettings(_ sender: Any) {
+        delegate?.showSettings()
+    }
+
     @IBAction func addPeer(_ sender: Any) {
         if let moc = tunnel.managedObjectContext {
             tableView.beginUpdates()
@@ -55,10 +58,6 @@ class TunnelConfigurationTableViewController: UITableViewController {
         }
     }
 
-    @IBAction func exportTunnel(_ sender: UIBarButtonItem) {
-        self.delegate?.export(tunnel: tunnel, barButtonItem: sender)
-    }
-
     override func numberOfSections(in tableView: UITableView) -> Int {
         return 3
     }

WireGuard/ViewControllers/TunnelInfoTableViewController.swift

@@ -9,6 +9,7 @@ import PromiseKit
 
 protocol TunnelInfoTableViewControllerDelegate: class {
     func configure(tunnel: Tunnel, tunnelInfoTableViewController: TunnelInfoTableViewController)
+    func showSettings()
 }
 
 class TunnelInfoTableViewController: UITableViewController {
@@ -63,6 +64,10 @@ class TunnelInfoTableViewController: UITableViewController {
         }
     }
 
+    @IBAction func showSettings(_ sender: Any) {
+        delegate?.showSettings()
+    }
+
     @IBAction func editTunnelConfiguration(_ sender: Any) {
         delegate?.configure(tunnel: self.tunnel, tunnelInfoTableViewController: self)
     }

WireGuard/ViewControllers/TunnelsTableViewController.swift

@@ -10,13 +10,13 @@ import BNRCoreDataStack
 import NetworkExtension
 
 protocol TunnelsTableViewControllerDelegate: class {
-    func exportTunnels(tunnelsTableViewController: TunnelsTableViewController, barButtonItem: UIBarButtonItem)
     func addProvider(tunnelsTableViewController: TunnelsTableViewController)
     func connect(tunnel: Tunnel, tunnelsTableViewController: TunnelsTableViewController)
     func disconnect(tunnel: Tunnel, tunnelsTableViewController: TunnelsTableViewController)
     func info(tunnel: Tunnel, tunnelsTableViewController: TunnelsTableViewController)
     func delete(tunnel: Tunnel, tunnelsTableViewController: TunnelsTableViewController)
     func status(for tunnel: Tunnel, tunnelsTableViewController: TunnelsTableViewController) -> NEVPNStatus
+    func showSettings()
 }
 
 class TunnelsTableViewController: UITableViewController {
@@ -66,8 +66,8 @@ class TunnelsTableViewController: UITableViewController {
         tableView.tableFooterView = UIView(frame: CGRect.zero)
     }
 
-    @IBAction func exportTunnels(_ sender: UIBarButtonItem) {
-        delegate?.exportTunnels(tunnelsTableViewController: self, barButtonItem: sender)
+    @IBAction func showSettings(_ sender: Any) {
+        delegate?.showSettings()
     }
 
     @IBAction func addProvider(_ sender: UIBarButtonItem) {