Crash fixes (#1869)

* Crash fixes

* added HasAutofillService to DeviceActionService

src/Android/Services/BiometricService.cs

@@ -43,23 +43,22 @@ namespace Bit.Droid.Services
 
         public Task<bool> ValidateIntegrityAsync(string bioIntegrityKey = null)
         {
-            // bioIntegrityKey used in iOS only
             if (Build.VERSION.SdkInt < BuildVersionCodes.M)
             {
                 return Task.FromResult(true);
             }
 
-            _keystore.Load(null);
-            IKey key = _keystore.GetKey(KeyName, null);
-            Cipher cipher = Cipher.GetInstance(Transformation);
-
-            if (key == null || cipher == null)
-            {
-                return Task.FromResult(true);
-            }
-
             try
             {
+                _keystore.Load(null);
+                var key = _keystore.GetKey(KeyName, null);
+                var cipher = Cipher.GetInstance(Transformation);
+
+                if (key == null || cipher == null)
+                {
+                    return Task.FromResult(true);
+                }
+
                 cipher.Init(CipherMode.EncryptMode, key);
             }
             catch (KeyPermanentlyInvalidatedException e)

src/Android/Services/DeviceActionService.cs

@@ -674,7 +674,7 @@ namespace Bit.Droid.Services
             else
             {
                 var data = new Intent();
-                if (cipher == null)
+                if (cipher?.Login == null)
                 {
                     data.PutExtra("canceled", "true");
                 }
@@ -734,6 +734,11 @@ namespace Bit.Droid.Services
             return Accessibility.AccessibilityHelpers.OverlayPermitted();
         }
 
+        public bool HasAutofillService()
+        {
+            return true;
+        }
+
         public void OpenAccessibilityOverlayPermissionSettings()
         {
             var activity = (MainActivity)CrossCurrentActivity.Current.Activity;

src/App/Abstractions/IDeviceActionService.cs

@@ -35,6 +35,7 @@ namespace Bit.App.Abstractions
         void Background();
         bool AutofillAccessibilityServiceRunning();
         bool AutofillAccessibilityOverlayPermitted();
+        bool HasAutofillService();
         bool AutofillServiceEnabled();
         void DisableAutofillService();
         bool AutofillServicesEnabled();

src/App/Pages/Settings/AutofillServicesPageViewModel.cs

@@ -192,7 +192,8 @@ namespace Bit.App.Pages
         
         public void UpdateEnabled()
         {
-            AutofillServiceToggled = _deviceActionService.AutofillServiceEnabled();
+            AutofillServiceToggled =
+                _deviceActionService.HasAutofillService() && _deviceActionService.AutofillServiceEnabled();
             AccessibilityToggled = _deviceActionService.AutofillAccessibilityServiceRunning();
             DrawOverToggled = _deviceActionService.AutofillAccessibilityOverlayPermitted();
         }

src/App/Pages/Vault/AutofillCiphersPageViewModel.cs

@@ -66,9 +66,9 @@ namespace Bit.App.Pages
         public void Init(AppOptions appOptions)
         {
             _appOptions = appOptions;
-            Uri = appOptions.Uri;
+            Uri = appOptions?.Uri;
             string name = null;
-            if (Uri.StartsWith(Constants.AndroidAppProtocol))
+            if (Uri?.StartsWith(Constants.AndroidAppProtocol) ?? false)
             {
                 name = Uri.Substring(Constants.AndroidAppProtocol.Length);
             }

src/Core/Services/TokenService.cs

@@ -208,11 +208,11 @@ namespace Bit.Core.Services
             if (_accessTokenForDecoding == null)
             {
                 await GetTokenAsync();
-            }
                 if (_accessTokenForDecoding == null)
                 {
                     return false;
                 }
+            }
             var decoded = DecodeToken();
             if (decoded?["amr"] == null)
             {

src/iOS.Core/Services/DeviceActionService.cs

@@ -392,6 +392,11 @@ namespace Bit.iOS.Core.Services
             throw new NotImplementedException();
         }
 
+        public bool HasAutofillService()
+        {
+            return false;
+        }
+
         public bool AutofillServiceEnabled()
         {
             throw new NotImplementedException();