refactor autofill classes. basic login support.

src/Android/Autofill/AutofillService.cs

@@ -0,0 +1,83 @@
+using Android;
+using Android.App;
+using Android.OS;
+using Android.Runtime;
+using Android.Service.Autofill;
+using Android.Views;
+using Bit.App.Abstractions;
+using System.Collections.Generic;
+using System.Linq;
+using XLabs.Ioc;
+
+namespace Bit.Android.Autofill
+{
+    [Service(Permission = Manifest.Permission.BindAutofillService, Label = "bitwarden")]
+    [IntentFilter(new string[] { "android.service.autofill.AutofillService" })]
+    [MetaData("android.autofill", Resource = "@xml/autofillservice")]
+    [Register("com.x8bit.bitwarden.Autofill.AutofillService")]
+    public class AutofillService : global::Android.Service.Autofill.AutofillService
+    {
+        private ICipherService _cipherService;
+
+        public async override void OnFillRequest(FillRequest request, CancellationSignal cancellationSignal, FillCallback callback)
+        {
+            var structure = request.FillContexts?.LastOrDefault()?.Structure;
+            if(structure == null)
+            {
+                return;
+            }
+
+            var clientState = request.ClientState;
+
+            var parser = new Parser(structure);
+            parser.ParseForFill();
+
+            if(!parser.FieldCollection.Fields.Any() || string.IsNullOrWhiteSpace(parser.Uri))
+            {
+                return;
+            }
+
+            if(_cipherService == null)
+            {
+                _cipherService = Resolver.Resolve<ICipherService>();
+            }
+
+            // build response
+            var items = new Dictionary<string, IFilledItem>();
+            var ciphers = await _cipherService.GetAllAsync(parser.Uri);
+            if(ciphers.Item1.Any() || ciphers.Item2.Any())
+            {
+                var allCiphers = ciphers.Item1.ToList();
+                allCiphers.AddRange(ciphers.Item2.ToList());
+                foreach(var cipher in allCiphers)
+                {
+                    items.Add(cipher.Id, new CipherFilledItem(cipher));
+                }
+            }
+
+            if(!items.Any())
+            {
+                return;
+            }
+
+            var response = AutofillHelpers.NewResponse(this, false, parser.FieldCollection, items);
+            callback.OnSuccess(response);
+        }
+
+        public override void OnSaveRequest(SaveRequest request, SaveCallback callback)
+        {
+            var structure = request.FillContexts?.LastOrDefault()?.Structure;
+            if(structure == null)
+            {
+                return;
+            }
+
+            var clientState = request.ClientState;
+
+            var parser = new Parser(structure);
+            parser.ParseForSave();
+            var filledAutofillFieldCollection = parser.GetClientFormData();
+            //SaveFilledAutofillFieldCollection(filledAutofillFieldCollection);
+        }
+    }
+}