PrivateDataConfirmation: prompt with touch/face/pin/password ID for viewing/exporting keys

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

3 files changed, 27 insertions, 19 deletions

diff --git a/WireGuard/WireGuard/UI/iOS/Info.plist b/WireGuard/WireGuard/UI/iOS/Info.plist
index 2a943eb..0c2d8b0 100644
--- a/WireGuard/WireGuard/UI/iOS/Info.plist
+++ b/WireGuard/WireGuard/UI/iOS/Info.plist
@@ -122,6 +122,8 @@
 			</dict>
 		</dict>
 	</array>
+	<key>NSFaceIDUsageDescription</key>
+	<string>Face ID is used for authenticating viewing and exporting of private keys</string>
 	<key>com.wireguard.ios.app_group_id</key>
 	<string>group.$(APP_ID_IOS)</string>
 </dict>
diff --git a/WireGuard/WireGuard/UI/iOS/ViewController/SettingsTableViewController.swift b/WireGuard/WireGuard/UI/iOS/ViewController/SettingsTableViewController.swift
index 64cd0f7..3addea4 100644
--- a/WireGuard/WireGuard/UI/iOS/ViewController/SettingsTableViewController.swift
+++ b/WireGuard/WireGuard/UI/iOS/ViewController/SettingsTableViewController.swift
@@ -86,22 +86,25 @@ class SettingsTableViewController: UITableViewController {
     }
 
     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)
+        PrivateDataConfirmation.confirmAccess(to: tr("iosExportPrivateData")) { [weak self] in
+            guard let self = self else { return }
+            guard let tunnelsManager = self.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 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)
             }
-
-            let fileExportVC = UIDocumentPickerViewController(url: destinationURL, in: .exportToService)
-            self?.present(fileExportVC, animated: true, completion: nil)
         }
     }
 
diff --git a/WireGuard/WireGuard/UI/iOS/ViewController/TunnelDetailTableViewController.swift b/WireGuard/WireGuard/UI/iOS/ViewController/TunnelDetailTableViewController.swift
index 955bf91..f65ca23 100644
--- a/WireGuard/WireGuard/UI/iOS/ViewController/TunnelDetailTableViewController.swift
+++ b/WireGuard/WireGuard/UI/iOS/ViewController/TunnelDetailTableViewController.swift
@@ -103,11 +103,14 @@ class TunnelDetailTableViewController: UITableViewController {
     }
 
     @objc func editTapped() {
-        let editVC = TunnelEditTableViewController(tunnelsManager: tunnelsManager, tunnel: tunnel)
-        editVC.delegate = self
-        let editNC = UINavigationController(rootViewController: editVC)
-        editNC.modalPresentationStyle = .formSheet
-        present(editNC, animated: true)
+        PrivateDataConfirmation.confirmAccess(to: tr("iosViewPrivateData")) { [weak self] in
+            guard let self = self else { return }
+            let editVC = TunnelEditTableViewController(tunnelsManager: self.tunnelsManager, tunnel: self.tunnel)
+            editVC.delegate = self
+            let editNC = UINavigationController(rootViewController: editVC)
+            editNC.modalPresentationStyle = .formSheet
+            self.present(editNC, animated: true)
+        }
     }
 
     func showConfirmationAlert(message: String, buttonTitle: String, from sourceView: UIView, onConfirmed: @escaping (() -> Void)) {