ignore Android settings for Autofill, fixes #2449

src/Kp2aAutofillParser/AutofillParser.cs

@@ -434,7 +434,7 @@ namespace Kp2aAutofillParser
         public static List<string> ConvertToCanonicalLowerCaseHints(string[] supportedHints)
         {
             List<string> result = new List<string>();
-            foreach (string hint in supportedHints.Where(h => h != null))
+            foreach (string hint in supportedHints)
             {
                 var canonicalHint = ToCanonicalHint(hint);
                 result.Add(canonicalHint.ToLower());
@@ -829,7 +829,7 @@ namespace Kp2aAutofillParser
             // * if there is no such autofill hint, we use IsPassword to 
 
             HashSet<string> autofillHintsOfAllFields = autofillView.InputFields.Where(f => f.AutofillHints != null)
-                .SelectMany(f => f.AutofillHints).Where(x => x != null).Select(AutofillHintsHelper.ToCanonicalHint).ToHashSet();
+                .SelectMany(f => f.AutofillHints).Select(AutofillHintsHelper.ToCanonicalHint).ToHashSet();
             bool hasLoginAutofillHints = autofillHintsOfAllFields.Intersect(_autofillHintsForLogin).Any();
 
             if (hasLoginAutofillHints)
@@ -839,9 +839,9 @@ namespace Kp2aAutofillParser
                     string[] viewHints = viewNode.AutofillHints;
                     if (viewHints == null)
                         continue;
-                    if (viewHints.Where(h => h != null).Select(AutofillHintsHelper.ToCanonicalHint).Intersect(_autofillHintsForLogin).Any())
+                    if (viewHints.Select(AutofillHintsHelper.ToCanonicalHint).Intersect(_autofillHintsForLogin).Any())
                     {
-                        AddFieldToHintMap(viewNode, viewHints.Where(h => h != null).Select(AutofillHintsHelper.ToCanonicalHint).ToHashSet().ToArray());
+                        AddFieldToHintMap(viewNode, viewHints.Select(AutofillHintsHelper.ToCanonicalHint).ToHashSet().ToArray());
                     }
 
                 }

src/Kp2aAutofillParserTest/AutofillTest.cs

@@ -71,6 +71,12 @@ namespace Kp2aAutofillParserTest
             var resourceName = "Kp2aAutofillParserTest.com-expressvpn-vpn-android13.json";
             RunTestFromAutofillInput(resourceName, "com.expressvpn.vpn", null);
         }
+        [Fact]
+        public void TestIgnoresAndroidSettings()
+        {
+            var resourceName = "Kp2aAutofillParserTest.android14-settings.json";
+            RunTestFromAutofillInput(resourceName, "com.android.settings", null);
+        }
 
         private void RunTestFromAutofillInput(string resourceName, string expectedPackageName = null, string expectedWebDomain = null)
         {

src/Kp2aAutofillParserTest/Kp2aAutofillParserTest.csproj

@@ -9,6 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <None Remove="android14-settings.json" />
     <None Remove="chrome-android10-amazon-it.json" />
     <None Remove="com-expressvpn-vpn-android13.json" />
     <None Remove="com-ifs-banking-fiid3364-android13.json" />
@@ -54,6 +55,9 @@
     <EmbeddedResource Include="com-servicenet-mobile-no-focus.json">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </EmbeddedResource>
+    <EmbeddedResource Include="android14-settings.json">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </EmbeddedResource>
     <EmbeddedResource Include="imdb.json">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </EmbeddedResource>

src/Kp2aAutofillParserTest/android14-settings.json

@@ -0,0 +1,99 @@
+{
+  "InputFields": [
+    {
+      "IdEntry": null,
+      "Hint": null,
+      "ClassName": "android.widget.FrameLayout",
+      "AutofillHints": null,
+      "IsFocused": false,
+      "InputType": 0,
+      "HtmlInfoTag": null,
+      "HtmlInfoTypeAttribute": null
+    },
+    {
+      "IdEntry": "content_parent",
+      "Hint": null,
+      "ClassName": "android.widget.LinearLayout",
+      "AutofillHints": null,
+      "IsFocused": false,
+      "InputType": 0,
+      "HtmlInfoTag": null,
+      "HtmlInfoTypeAttribute": null
+    },
+    {
+      "IdEntry": "content_frame",
+      "Hint": null,
+      "ClassName": "android.widget.FrameLayout",
+      "AutofillHints": null,
+      "IsFocused": false,
+      "InputType": 0,
+      "HtmlInfoTag": null,
+      "HtmlInfoTypeAttribute": null
+    },
+    {
+      "IdEntry": "main_content",
+      "Hint": null,
+      "ClassName": "android.widget.FrameLayout",
+      "AutofillHints": null,
+      "IsFocused": false,
+      "InputType": 0,
+      "HtmlInfoTag": null,
+      "HtmlInfoTypeAttribute": null
+    },
+    {
+      "IdEntry": "password_entry",
+      "Hint": null,
+      "ClassName": "android.widget.EditText",
+      "AutofillHints": [
+        "passwordAuto"
+      ],
+      "IsFocused": true,
+      "InputType": 18,
+      "HtmlInfoTag": null,
+      "HtmlInfoTypeAttribute": null,
+      "ExpectedAssignedHints": [ "password" ]
+    },
+    {
+      "IdEntry": "checkbox",
+      "Hint": null,
+      "ClassName": "android.widget.CheckBox",
+      "AutofillHints": null,
+      "IsFocused": false,
+      "InputType": 0,
+      "HtmlInfoTag": null,
+      "HtmlInfoTypeAttribute": null
+    },
+    {
+      "IdEntry": "button_bar",
+      "Hint": null,
+      "ClassName": "android.widget.RelativeLayout",
+      "AutofillHints": null,
+      "IsFocused": false,
+      "InputType": 0,
+      "HtmlInfoTag": null,
+      "HtmlInfoTypeAttribute": null
+    },
+    {
+      "IdEntry": "switch_bar",
+      "Hint": null,
+      "ClassName": "android.widget.LinearLayout",
+      "AutofillHints": null,
+      "IsFocused": false,
+      "InputType": 0,
+      "HtmlInfoTag": null,
+      "HtmlInfoTypeAttribute": null
+    },
+    {
+      "IdEntry": "action_bar",
+      "Hint": null,
+      "ClassName": "android.view.ViewGroup",
+      "AutofillHints": null,
+      "IsFocused": false,
+      "InputType": 0,
+      "HtmlInfoTag": null,
+      "HtmlInfoTypeAttribute": null
+    }
+  ],
+  "PackageId": "com.android.settings",
+  "WebDomain": null
+}

src/keepass2android/services/AutofillBase/AutofillServiceBase.cs

@@ -40,6 +40,26 @@ namespace keepass2android.services.AutofillBase
 
     public abstract class AutofillServiceBase: AutofillService
     {
+        private HashSet<string> _internal_blacklistedUris = null;
+
+        public HashSet<string> BlacklistedUris
+        {
+            get
+            {
+                if (_internal_blacklistedUris == null)
+                {
+                    _internal_blacklistedUris = new HashSet<string>()
+                    {
+                        KeePass.AndroidAppScheme + "android",
+                        KeePass.AndroidAppScheme + "com.android.settings",
+                        KeePass.AndroidAppScheme + this.PackageName
+                    };
+                }
+
+                return _internal_blacklistedUris;
+
+            }
+        }
         protected override void AttachBaseContext(Context baseContext)
         {
             base.AttachBaseContext(LocaleManager.setLocale(baseContext));
@@ -386,7 +406,7 @@ namespace keepass2android.services.AutofillBase
 
         private bool CanAutofill(StructureParser.AutofillTargetId query, bool isManual)
         {
-            if (query.PackageNameWithPseudoSchema == KeePass.AndroidAppScheme+"android" || query.PackageNameWithPseudoSchema == KeePass.AndroidAppScheme + this.PackageName)
+            if (BlacklistedUris.Contains(query.PackageNameWithPseudoSchema))
                 return false;
             if (!isManual)
             {