support for faceid labels

src/Android/Services/DeviceInfoService.cs

@@ -46,7 +46,7 @@ namespace Bit.Android.Services
         public bool NfcEnabled => Utilities.NfcEnabled();
         public bool HasCamera => Xamarin.Forms.Forms.Context.PackageManager.HasSystemFeature(PackageManager.FeatureCamera);
         public bool AutofillServiceSupported => AutofillSupported();
-
+        public bool HasFaceIdSupport => false;
         private bool AutofillSupported()
         {
             if(Build.VERSION.SdkInt < BuildVersionCodes.O)

src/App/Abstractions/Services/IDeviceInfoService.cs

@@ -8,5 +8,6 @@
         bool NfcEnabled { get; }
         bool HasCamera { get; }
         bool AutofillServiceSupported { get; }
+        bool HasFaceIdSupport { get; }
     }
 }

src/App/Pages/Lock/LockFingerprintPage.cs

@@ -15,6 +15,7 @@ namespace Bit.App.Pages
         private readonly IFingerprint _fingerprint;
         private readonly ISettings _settings;
         private readonly IAppSettingsService _appSettings;
+        private readonly IDeviceInfoService _deviceInfoService;
         private readonly bool _checkFingerprintImmediately;
         private DateTime? _lastAction;
 
@@ -24,6 +25,7 @@ namespace Bit.App.Pages
             _fingerprint = Resolver.Resolve<IFingerprint>();
             _settings = Resolver.Resolve<ISettings>();
             _appSettings = Resolver.Resolve<IAppSettingsService>();
+            _deviceInfoService = Resolver.Resolve<IDeviceInfoService>();
 
             Init();
         }
@@ -32,7 +34,7 @@ namespace Bit.App.Pages
         {
             var fingerprintIcon = new ExtendedButton
             {
-                Image = "fingerprint.png",
+                Image = _deviceInfoService.HasFaceIdSupport ? "smile.png" : "fingerprint.png",
                 BackgroundColor = Color.Transparent,
                 Command = new Command(async () => await CheckFingerprintAsync()),
                 VerticalOptions = LayoutOptions.CenterAndExpand,
@@ -41,7 +43,8 @@ namespace Bit.App.Pages
 
             var fingerprintButton = new ExtendedButton
             {
-                Text = AppResources.UseFingerprintToUnlock,
+                Text = _deviceInfoService.HasFaceIdSupport ? AppResources.UseFaceIDToUnlock :
+                    AppResources.UseFingerprintToUnlock,
                 Command = new Command(async () => await CheckFingerprintAsync()),
                 VerticalOptions = LayoutOptions.EndAndExpand,
                 Style = (Style)Application.Current.Resources["btn-primary"]
@@ -64,7 +67,7 @@ namespace Bit.App.Pages
                 Children = { fingerprintIcon, fingerprintButton, logoutButton }
             };
 
-            Title = AppResources.VerifyFingerprint;
+            Title = _deviceInfoService.HasFaceIdSupport ? AppResources.VerifyFaceID : AppResources.VerifyFingerprint;
             Content = stackLayout;
         }
 

src/App/Pages/Settings/SettingsPage.cs

@@ -20,6 +20,7 @@ namespace Bit.App.Pages
         private readonly IPushNotificationService _pushNotification;
         private readonly IGoogleAnalyticsService _googleAnalyticsService;
         private readonly IDeviceActionService _deviceActionService;
+        private readonly IDeviceInfoService _deviceInfoService;
         private readonly ILockService _lockService;
 
         // TODO: Model binding context?
@@ -33,6 +34,7 @@ namespace Bit.App.Pages
             _pushNotification = Resolver.Resolve<IPushNotificationService>();
             _googleAnalyticsService = Resolver.Resolve<IGoogleAnalyticsService>();
             _deviceActionService = Resolver.Resolve<IDeviceActionService>();
+            _deviceInfoService = Resolver.Resolve<IDeviceInfoService>();
             _lockService = Resolver.Resolve<ILockService>();
 
             Init();
@@ -91,8 +93,9 @@ namespace Bit.App.Pages
 
             if((await _fingerprint.GetAvailabilityAsync()) == FingerprintAvailability.Available)
             {
-                var fingerprintName = Helpers.OnPlatform(iOS: AppResources.TouchID, Android: AppResources.Fingerprint,
+                var fingerprintName = Helpers.OnPlatform(
-                    Windows: AppResources.Fingerprint, WinPhone: AppResources.Fingerprint);
+                    iOS: _deviceInfoService.HasFaceIdSupport ? AppResources.FaceID : AppResources.TouchID,
+                    Android: AppResources.Fingerprint, Windows: AppResources.Fingerprint, WinPhone: AppResources.Fingerprint);
                 FingerprintCell = new ExtendedSwitchCell
                 {
                     Text = string.Format(AppResources.UnlockWith, fingerprintName),

src/App/Resources/AppResources.Designer.cs

@@ -1303,6 +1303,24 @@ namespace Bit.App.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Face ID.
+        /// </summary>
+        public static string FaceID {
+            get {
+                return ResourceManager.GetString("FaceID", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Use Face ID to verify..
+        /// </summary>
+        public static string FaceIDDirection {
+            get {
+                return ResourceManager.GetString("FaceIDDirection", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Favorite.
         /// </summary>
@@ -2905,6 +2923,15 @@ namespace Bit.App.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Use Face ID To Unlock.
+        /// </summary>
+        public static string UseFaceIDToUnlock {
+            get {
+                return ResourceManager.GetString("UseFaceIDToUnlock", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Use Fingerprint to Unlock.
         /// </summary>
@@ -2995,6 +3022,15 @@ namespace Bit.App.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Verify Face ID.
+        /// </summary>
+        public static string VerifyFaceID {
+            get {
+                return ResourceManager.GetString("VerifyFaceID", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Verify Fingerprint.
         /// </summary>

src/App/Resources/AppResources.resx

@@ -1218,4 +1218,17 @@
   <data name="BitwardenAutofillServiceOpenAutofillSettings" xml:space="preserve">
     <value>Open Autofill Settings</value>
   </data>
+  <data name="FaceID" xml:space="preserve">
+    <value>Face ID</value>
+    <comment>What Apple calls their facial recognition reader.</comment>
+  </data>
+  <data name="FaceIDDirection" xml:space="preserve">
+    <value>Use Face ID to verify.</value>
+  </data>
+  <data name="UseFaceIDToUnlock" xml:space="preserve">
+    <value>Use Face ID To Unlock</value>
+  </data>
+  <data name="VerifyFaceID" xml:space="preserve">
+    <value>Verify Face ID</value>
+  </data>
 </root>

src/UWP/Services/DeviceInfoService.cs

@@ -41,5 +41,6 @@ namespace Bit.UWP.Services
         }
         
         public bool AutofillServiceSupported => false;
+        public bool HasFaceIdSupport => false;
     }
 }

src/iOS.Core/Services/DeviceInfoService.cs

@@ -1,4 +1,6 @@
 using Bit.App.Abstractions;
+using Foundation;
+using LocalAuthentication;
 using UIKit;
 
 namespace Bit.iOS.Core.Services
@@ -25,5 +27,19 @@ namespace Bit.iOS.Core.Services
         public bool NfcEnabled => false;
         public bool HasCamera => true;
         public bool AutofillServiceSupported => false;
+        public bool HasFaceIdSupport
+        {
+            get
+            {
+                if(Version < 11)
+                {
+                    return false;
+                }
+
+                var context = new LAContext();
+                return context.CanEvaluatePolicy(LAPolicy.DeviceOwnerAuthenticationWithBiometrics, out NSError e) &&
+                    context.BiometryType == LABiometryType.TypeFaceId;
+            }
+        }
     }
 }