autofill service

2025-12-14 23:33:34 +00:00 · 2019-04-30 12:35:58 -04:00
parent cad56d438f
commit 464f4ba300
15 changed files with 1352 additions and 61 deletions
--- a/src/Android/Autofill/Parser.cs
+++ b/src/Android/Autofill/Parser.cs
@@ -0,0 +1,130 @@
+using static Android.App.Assist.AssistStructure;
+using Android.App.Assist;
+using System.Collections.Generic;
+using Bit.Core;
+using Android.Content;
+
+namespace Bit.Droid.Autofill
+{
+    public class Parser
+    {
+        public static HashSet<string> _excludedPackageIds = new HashSet<string>
+        {
+            "android"
+        };
+        private readonly AssistStructure _structure;
+        private string _uri;
+        private string _packageName;
+        private string _webDomain;
+
+        public Parser(AssistStructure structure, Context applicationContext)
+        {
+            _structure = structure;
+            ApplicationContext = applicationContext;
+        }
+
+        public Context ApplicationContext { get; set; }
+        public FieldCollection FieldCollection { get; private set; } = new FieldCollection();
+
+        public string Uri
+        {
+            get
+            {
+                if(!string.IsNullOrWhiteSpace(_uri))
+                {
+                    return _uri;
+                }
+                var webDomainNull = string.IsNullOrWhiteSpace(WebDomain);
+                if(webDomainNull && string.IsNullOrWhiteSpace(PackageName))
+                {
+                    _uri = null;
+                }
+                else if(!webDomainNull)
+                {
+                    _uri = string.Concat("http://", WebDomain);
+                }
+                else
+                {
+                    _uri = string.Concat(Constants.AndroidAppProtocol, PackageName);
+                }
+                return _uri;
+            }
+        }
+
+        public string PackageName
+        {
+            get => _packageName;
+            set
+            {
+                if(string.IsNullOrWhiteSpace(value))
+                {
+                    _packageName = _uri = null;
+                }
+                _packageName = value;
+            }
+        }
+
+        public string WebDomain
+        {
+            get => _webDomain;
+            set
+            {
+                if(string.IsNullOrWhiteSpace(value))
+                {
+                    _webDomain = _uri = null;
+                }
+                _webDomain = value;
+            }
+        }
+
+        public bool ShouldAutofill => !string.IsNullOrWhiteSpace(Uri) &&
+            !AutofillHelpers.BlacklistedUris.Contains(Uri) && FieldCollection != null && FieldCollection.Fillable;
+
+        public void Parse()
+        {
+            for(var i = 0; i < _structure.WindowNodeCount; i++)
+            {
+                var node = _structure.GetWindowNodeAt(i);
+                ParseNode(node.RootViewNode);
+            }
+            if(!AutofillHelpers.TrustedBrowsers.Contains(PackageName) &&
+                !AutofillHelpers.CompatBrowsers.Contains(PackageName))
+            {
+                WebDomain = null;
+            }
+        }
+
+        private void ParseNode(ViewNode node)
+        {
+            SetPackageAndDomain(node);
+            var hints = node.GetAutofillHints();
+            var isEditText = node.ClassName == "android.widget.EditText" || node?.HtmlInfo?.Tag == "input";
+            if(isEditText || (hints?.Length ?? 0) > 0)
+            {
+                FieldCollection.Add(new Field(node));
+            }
+            else
+            {
+                FieldCollection.IgnoreAutofillIds.Add(node.AutofillId);
+            }
+
+            for(var i = 0; i < node.ChildCount; i++)
+            {
+                ParseNode(node.GetChildAt(i));
+            }
+        }
+
+        private void SetPackageAndDomain(ViewNode node)
+        {
+            if(string.IsNullOrWhiteSpace(PackageName) && !string.IsNullOrWhiteSpace(node.IdPackage) &&
+                !_excludedPackageIds.Contains(node.IdPackage))
+            {
+                PackageName = node.IdPackage;
+            }
+            if(string.IsNullOrWhiteSpace(WebDomain) && !string.IsNullOrWhiteSpace(node.WebDomain))
+            {
+                WebDomain = node.WebDomain;
+            }
+        }
+    }
+}