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build out supporting classes from old refs

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This commit is contained in:
Kyle Spearrin 2017-11-14 16:46:40 -05:00
parent 72ff680114
commit 4f5e238685
10 changed files with 670 additions and 662 deletions
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9
src/Android/Android.csproj
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@ -287,8 +287,10 @@
<ItemGroup>
<Compile Include="AutofillActivity.cs" />
<Compile Include="AutofillCredentials.cs" />
<Compile Include="AutofillFrameworkService_OLD.cs" />
<Compile Include="AutofillFrameworkService.cs" />
<Compile Include="Autofill\AutofillFieldMetadata.cs" />
<Compile Include="Autofill\AutofillFieldMetadataCollection.cs" />
<Compile Include="Autofill\AutofillFrameworkService.cs" />
<Compile Include="Autofill\AutofillHelper.cs" />
<Compile Include="Controls\CustomLabelRenderer.cs" />
<Compile Include="Controls\CustomSearchBarRenderer.cs" />
<Compile Include="Controls\CustomButtonRenderer.cs" />
@ -296,6 +298,8 @@
<Compile Include="Controls\ExtendedButtonRenderer.cs" />
<Compile Include="Controls\ExtendedTabbedPageRenderer.cs" />
<Compile Include="Controls\ExtendedTableViewRenderer.cs" />
<Compile Include="Autofill\FilledAutofillField.cs" />
<Compile Include="Autofill\FilledAutofillFieldCollection.cs" />
<Compile Include="HockeyAppCrashManagerListener.cs" />
<Compile Include="AutofillService.cs" />
<Compile Include="Controls\ExtendedEditorRenderer.cs" />
@ -324,6 +328,7 @@
<Compile Include="Services\SqlService.cs" />
<Compile Include="SplashActivity.cs" />
<Compile Include="PackageReplacedReceiver.cs" />
<Compile Include="Autofill\StructureParser.cs" />
<Compile Include="Utilities.cs" />
</ItemGroup>
<ItemGroup>

103
src/Android/Autofill/AutofillFieldMetadata.cs Normal file
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using System.Collections.Generic;
using System.Linq;
using Android.Service.Autofill;
using Android.Views;
using Android.Views.Autofill;
using static Android.App.Assist.AssistStructure;
using Android.Text;
namespace Bit.Android.Autofill
{
public class AutofillFieldMetadata
{
private List<string> _autofillHints;
private string[] _autofillOptions;
public AutofillFieldMetadata(ViewNode view)
{
_autofillOptions = view.GetAutofillOptions();
Id = view.Id;
AutofillId = view.AutofillId;
AutofillType = view.AutofillType;
InputType = view.InputType;
IsFocused = view.IsFocused;
AutofillHints = AutofillHelper.FilterForSupportedHints(view.GetAutofillHints())?.ToList() ?? new List<string>();
}
public SaveDataType SaveType { get; set; } = SaveDataType.Generic;
public List<string> AutofillHints
{
get { return _autofillHints; }
set
{
_autofillHints = value;
UpdateSaveTypeFromHints();
}
}
public int Id { get; private set; }
public AutofillId AutofillId { get; private set; }
public AutofillType AutofillType { get; private set; }
public InputTypes InputType { get; private set; }
public bool IsFocused { get; private set; }
/**
* When the {@link ViewNode} is a list that the user needs to choose a string from (i.e. a
* spinner), this is called to return the index of a specific item in the list.
*/
public int GetAutofillOptionIndex(string value)
{
for(var i = 0; i < _autofillOptions.Length; i++)
{
if(_autofillOptions[i].Equals(value))
{
return i;
}
}
return -1;
}
private void UpdateSaveTypeFromHints()
{
SaveType = SaveDataType.Generic;
if(_autofillHints == null)
{
return;
}
foreach(var hint in _autofillHints)
{
switch(hint)
{
case View.AutofillHintCreditCardExpirationDate:
case View.AutofillHintCreditCardExpirationDay:
case View.AutofillHintCreditCardExpirationMonth:
case View.AutofillHintCreditCardExpirationYear:
case View.AutofillHintCreditCardNumber:
case View.AutofillHintCreditCardSecurityCode:
SaveType |= SaveDataType.CreditCard;
break;
case View.AutofillHintEmailAddress:
SaveType |= SaveDataType.EmailAddress;
break;
case View.AutofillHintPhone:
case View.AutofillHintName:
SaveType |= SaveDataType.Generic;
break;
case View.AutofillHintPassword:
SaveType |= SaveDataType.Password;
SaveType &= ~SaveDataType.EmailAddress;
SaveType &= ~SaveDataType.Username;
break;
case View.AutofillHintPostalAddress:
case View.AutofillHintPostalCode:
SaveType |= SaveDataType.Address;
break;
case View.AutofillHintUsername:
SaveType |= SaveDataType.Username;
break;
}
}
}
}
}

51
src/Android/Autofill/AutofillFieldMetadataCollection.cs Normal file
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using System.Collections.Generic;
using Android.Service.Autofill;
using Android.Views;
using Android.Views.Autofill;
namespace Bit.Android.Autofill
{
public class AutofillFieldMetadataCollection
{
private int _size = 0;
public List<int> Ids { get; private set; } = new List<int>();
public List<AutofillId> AutofillIds { get; private set; } = new List<AutofillId>();
public SaveDataType SaveType { get; private set; } = SaveDataType.Generic;
public List<string> AutofillHints { get; private set; } = new List<string>();
public List<string> FocusedAutofillHints { get; private set; } = new List<string>();
public List<AutofillFieldMetadata> Feilds { get; private set; }
public IDictionary<int, AutofillFieldMetadata> IdToFieldMap { get; private set; } =
new Dictionary<int, AutofillFieldMetadata>();
public IDictionary<string, List<AutofillFieldMetadata>> AutofillHintsToFieldsMap { get; private set; } =
new Dictionary<string, List<AutofillFieldMetadata>>();
public void Add(AutofillFieldMetadata data)
{
_size++;
SaveType |= data.SaveType;
Ids.Add(data.Id);
AutofillIds.Add(data.AutofillId);
IdToFieldMap.Add(data.Id, data);
if((data.AutofillHints?.Count ?? 0) > 0)
{
AutofillHints.AddRange(data.AutofillHints);
if(data.IsFocused)
{
FocusedAutofillHints.AddRange(data.AutofillHints);
}
foreach(var hint in data.AutofillHints)
{
if(!AutofillHintsToFieldsMap.ContainsKey(hint))
{
AutofillHintsToFieldsMap.Add(hint, new List<AutofillFieldMetadata>());
}
AutofillHintsToFieldsMap[hint].Add(data);
}
}
}
}
}

80
src/Android/Autofill/AutofillFrameworkService.cs Normal file
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using Android;
using Android.App;
using Android.OS;
using Android.Runtime;
using Android.Service.Autofill;
using Android.Views;
using System.Collections.Generic;
using System.Linq;
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.AutofillFrameworkService")]
public class AutofillFrameworkService : global::Android.Service.Autofill.AutofillService
{
public 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 StructureParser(structure);
parser.ParseForFill();
// build response
var responseBuilder = new FillResponse.Builder();
var username1 = new FilledAutofillField { TextValue = "username1" };
var password1 = new FilledAutofillField { TextValue = "pass1" };
var login1 = new Dictionary<string, FilledAutofillField>
{
{ View.AutofillHintUsername, username1 },
{ View.AutofillHintPassword, password1 }
};
var coll = new FilledAutofillFieldCollection("Login 1 Name", login1);
var username2 = new FilledAutofillField { TextValue = "username2" };
var password2 = new FilledAutofillField { TextValue = "pass2" };
var login2 = new Dictionary<string, FilledAutofillField>
{
{ View.AutofillHintUsername, username2 },
{ View.AutofillHintPassword, password2 }
};
var col2 = new FilledAutofillFieldCollection("Login 2 Name", login2);
var clientFormDataMap = new Dictionary<string, FilledAutofillFieldCollection>
{
{ "login-1-guid", coll },
{ "login-2-guid", col2 }
};
var response = AutofillHelper.NewResponse(this, false, parser.AutofillFields, clientFormDataMap);
// end build response
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 StructureParser(structure);
parser.ParseForSave();
var filledAutofillFieldCollection = parser.GetClientFormData();
//SaveFilledAutofillFieldCollection(filledAutofillFieldCollection);
}
}
}

137
src/Android/Autofill/AutofillHelper.cs Normal file
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@ -0,0 +1,137 @@
using System;
using System.Collections.Generic;
using Android.Content;
using Android.Service.Autofill;
using Android.Views;
using Android.Widget;
namespace Bit.Android.Autofill
{
public static class AutofillHelper
{
/**
* Wraps autofill data in a LoginCredential Dataset object which can then be sent back to the
* client View.
*/
public static Dataset NewDataset(Context context, AutofillFieldMetadataCollection autofillFields,
FilledAutofillFieldCollection filledAutofillFieldCollection, bool datasetAuth)
{
var datasetName = filledAutofillFieldCollection.DatasetName;
if(datasetName != null)
{
Dataset.Builder datasetBuilder;
if(datasetAuth)
{
datasetBuilder = new Dataset.Builder(
NewRemoteViews(context.PackageName, datasetName, "username", Resource.Drawable.fa_lock));
//IntentSender sender = AuthActivity.getAuthIntentSenderForDataset(context, datasetName);
//datasetBuilder.SetAuthentication(sender);
}
else
{
datasetBuilder = new Dataset.Builder(
NewRemoteViews(context.PackageName, datasetName, "username", Resource.Drawable.user));
}
var setValueAtLeastOnce = filledAutofillFieldCollection.ApplyToFields(autofillFields, datasetBuilder);
if(setValueAtLeastOnce)
{
return datasetBuilder.Build();
}
}
return null;
}
public static RemoteViews NewRemoteViews(string packageName, string text, string subtext, int iconId)
{
var views = new RemoteViews(packageName, Resource.Layout.autofill_listitem);
views.SetTextViewText(Resource.Id.text, text);
views.SetTextViewText(Resource.Id.text2, subtext);
views.SetImageViewResource(Resource.Id.icon, iconId);
return views;
}
/**
* Wraps autofill data in a Response object (essentially a series of Datasets) which can then
* be sent back to the client View.
*/
public static FillResponse NewResponse(Context context, bool datasetAuth,
AutofillFieldMetadataCollection autofillFields,
IDictionary<string, FilledAutofillFieldCollection> clientFormDataMap)
{
var responseBuilder = new FillResponse.Builder();
if(clientFormDataMap != null)
{
foreach(var datasetName in clientFormDataMap.Keys)
{
if(clientFormDataMap.ContainsKey(datasetName))
{
var dataset = NewDataset(context, autofillFields, clientFormDataMap[datasetName], datasetAuth);
if(dataset != null)
{
responseBuilder.AddDataset(dataset);
}
}
}
}
if(autofillFields.SaveType != SaveDataType.Generic)
{
responseBuilder.SetSaveInfo(
new SaveInfo.Builder(autofillFields.SaveType, autofillFields.AutofillIds.ToArray()).Build());
return responseBuilder.Build();
}
else
{
//Log.d(TAG, "These fields are not meant to be saved by autofill.");
return null;
}
}
public static string[] FilterForSupportedHints(string[] hints)
{
if((hints?.Length ?? 0) == 0)
{
return new string[0];
}
var filteredHints = new string[hints.Length];
var i = 0;
foreach(var hint in hints)
{
if(IsValidHint(hint))
{
filteredHints[i++] = hint;
}
}
var finalFilteredHints = new string[i];
Array.Copy(filteredHints, 0, finalFilteredHints, 0, i);
return finalFilteredHints;
}
public static bool IsValidHint(string hint)
{
switch(hint)
{
case View.AutofillHintCreditCardExpirationDate:
case View.AutofillHintCreditCardExpirationDay:
case View.AutofillHintCreditCardExpirationMonth:
case View.AutofillHintCreditCardExpirationYear:
case View.AutofillHintCreditCardNumber:
case View.AutofillHintCreditCardSecurityCode:
case View.AutofillHintEmailAddress:
case View.AutofillHintPhone:
case View.AutofillHintName:
case View.AutofillHintPassword:
case View.AutofillHintPostalAddress:
case View.AutofillHintPostalCode:
case View.AutofillHintUsername:
return true;
default:
return false;
}
}
}
}

81
src/Android/Autofill/FilledAutofillField.cs Normal file
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@ -0,0 +1,81 @@
using static Android.App.Assist.AssistStructure;
namespace Bit.Android.Autofill
{
public class FilledAutofillField
{
/**
* Does not need to be serialized into persistent storage, so it's not exposed.
*/
private string[] _autofillHints = null;
public FilledAutofillField() { }
public FilledAutofillField(ViewNode viewNode)
{
_autofillHints = AutofillHelper.FilterForSupportedHints(viewNode.GetAutofillHints());
var autofillValue = viewNode.AutofillValue;
if(autofillValue != null)
{
if(autofillValue.IsList)
{
var autofillOptions = viewNode.GetAutofillOptions();
int index = autofillValue.ListValue;
if(autofillOptions != null && autofillOptions.Length > 0)
{
TextValue = autofillOptions[index];
}
}
else if(autofillValue.IsDate)
{
DateValue = autofillValue.DateValue;
}
else if(autofillValue.IsText)
{
// Using toString of AutofillValue.getTextValue in order to save it to
// SharedPreferences.
TextValue = autofillValue.TextValue;
}
}
}
public string TextValue { get; set; }
public long? DateValue { get; set; }
public bool? ToggleValue { get; set; }
public string[] GetAutofillHints()
{
return _autofillHints;
}
public bool IsNull()
{
return TextValue == null && DateValue == null && ToggleValue == null;
}
public override bool Equals(object o)
{
if(this == o)
return true;
if(o == null || GetType() != o.GetType())
return false;
var that = (FilledAutofillField)o;
if(TextValue != null ? !TextValue.Equals(that.TextValue) : that.TextValue != null)
return false;
if(DateValue != null ? !DateValue.Equals(that.DateValue) : that.DateValue != null)
return false;
return ToggleValue != null ? ToggleValue.Equals(that.ToggleValue) : that.ToggleValue == null;
}
public override int GetHashCode()
{
var result = TextValue != null ? TextValue.GetHashCode() : 0;
result = 31 * result + (DateValue != null ? DateValue.GetHashCode() : 0);
result = 31 * result + (ToggleValue != null ? ToggleValue.GetHashCode() : 0);
return result;
}
}
}

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src/Android/Autofill/FilledAutofillFieldCollection.cs Normal file
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using System;
using System.Collections.Generic;
using Android.Service.Autofill;
using Android.Views;
using Android.Views.Autofill;
namespace Bit.Android.Autofill
{
public class FilledAutofillFieldCollection
{
public FilledAutofillFieldCollection()
: this(null, new Dictionary<string, FilledAutofillField>())
{
}
public FilledAutofillFieldCollection(string datasetName, IDictionary<string, FilledAutofillField> hintMap)
{
HintMap = hintMap;
DatasetName = datasetName;
}
public IDictionary<string, FilledAutofillField> HintMap { get; private set; }
public string DatasetName { get; set; }
/**
* Adds a {@code FilledAutofillField} to the collection, indexed by all of its hints.
*/
public void Add(FilledAutofillField filledAutofillField)
{
if(filledAutofillField == null)
{
throw new ArgumentNullException(nameof(filledAutofillField));
}
var autofillHints = filledAutofillField.GetAutofillHints();
foreach(var hint in autofillHints)
{
HintMap.Add(hint, filledAutofillField);
}
}
/**
* Populates a {@link Dataset.Builder} with appropriate values for each {@link AutofillId}
* in a {@code AutofillFieldMetadataCollection}.
*
* In other words, it constructs an autofill
* {@link Dataset.Builder} by applying saved values (from this {@code FilledAutofillFieldCollection})
* to Views specified in a {@code AutofillFieldMetadataCollection}, which represents the current
* page the user is on.
*/
public bool ApplyToFields(AutofillFieldMetadataCollection autofillFieldMetadataCollection,
Dataset.Builder datasetBuilder)
{
var setValueAtLeastOnce = false;
var allHints = autofillFieldMetadataCollection.AutofillHints;
for(var hintIndex = 0; hintIndex < allHints.Count; hintIndex++)
{
var hint = allHints[hintIndex];
if(!autofillFieldMetadataCollection.AutofillHintsToFieldsMap.ContainsKey(hint))
{
continue;
}
var fillableAutofillFields = autofillFieldMetadataCollection.AutofillHintsToFieldsMap[hint];
for(var autofillFieldIndex = 0; autofillFieldIndex < fillableAutofillFields.Count; autofillFieldIndex++)
{
if(!HintMap.ContainsKey(hint))
{
continue;
}
var filledAutofillField = HintMap[hint];
var autofillFieldMetadata = fillableAutofillFields[autofillFieldIndex];
var autofillId = autofillFieldMetadata.AutofillId;
var autofillType = autofillFieldMetadata.AutofillType;
switch(autofillType)
{
case AutofillType.List:
int listValue = autofillFieldMetadata.GetAutofillOptionIndex(filledAutofillField.TextValue);
if(listValue != -1)
{
datasetBuilder.SetValue(autofillId, AutofillValue.ForList(listValue));
setValueAtLeastOnce = true;
}
break;
case AutofillType.Date:
var dateValue = filledAutofillField.DateValue;
if(dateValue != null)
{
datasetBuilder.SetValue(autofillId, AutofillValue.ForDate(dateValue.Value));
setValueAtLeastOnce = true;
}
break;
case AutofillType.Text:
var textValue = filledAutofillField.TextValue;
if(textValue != null)
{
datasetBuilder.SetValue(autofillId, AutofillValue.ForText(textValue));
setValueAtLeastOnce = true;
}
break;
case AutofillType.Toggle:
var toggleValue = filledAutofillField.ToggleValue;
if(toggleValue != null)
{
datasetBuilder.SetValue(autofillId, AutofillValue.ForToggle(toggleValue.Value));
setValueAtLeastOnce = true;
}
break;
case AutofillType.None:
default:
break;
}
}
}
return setValueAtLeastOnce;
}
/**
* Takes in a list of autofill hints (`autofillHints`), usually associated with a View or set of
* Views. Returns whether any of the filled fields on the page have at least 1 of these
* `autofillHint`s.
*/
public bool HelpsWithHints(List<String> autofillHints)
{
for(var i = 0; i < autofillHints.Count; i++)
{
if(HintMap.ContainsKey(autofillHints[i]) && !HintMap[autofillHints[i]].IsNull())
{
return true;
}
}
return false;
}
}
}

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src/Android/Autofill/StructureParser.cs Normal file
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@ -0,0 +1,73 @@
using static Android.App.Assist.AssistStructure;
using Android.App.Assist;
namespace Bit.Android.Autofill
{
public class StructureParser
{
private readonly AssistStructure _structure;
private FilledAutofillFieldCollection _filledAutofillFieldCollection;
public StructureParser(AssistStructure structure)
{
_structure = structure;
}
public AutofillFieldMetadataCollection AutofillFields { get; private set; }
= new AutofillFieldMetadataCollection();
public void ParseForFill()
{
Parse(true);
}
public void ParseForSave()
{
Parse(false);
}
/**
* Traverse AssistStructure and add ViewNode metadata to a flat list.
*/
private void Parse(bool forFill)
{
_filledAutofillFieldCollection = new FilledAutofillFieldCollection();
for(var i = 0; i < _structure.WindowNodeCount; i++)
{
var node = _structure.GetWindowNodeAt(i);
var view = node.RootViewNode;
ParseLocked(forFill, view);
}
}
private void ParseLocked(bool forFill, ViewNode viewNode)
{
var autofillHints = viewNode.GetAutofillHints();
var autofillType = viewNode.AutofillType;
var inputType = viewNode.InputType;
var isEditText = viewNode.ClassName == "android.widget.EditText";
if(isEditText || (autofillHints?.Length ?? 0) > 0)
{
if(forFill)
{
AutofillFields.Add(new AutofillFieldMetadata(viewNode));
}
else
{
_filledAutofillFieldCollection.Add(new FilledAutofillField(viewNode));
}
}
for(var i = 0; i < viewNode.ChildCount; i++)
{
ParseLocked(forFill, viewNode.GetChildAt(i));
}
}
public FilledAutofillFieldCollection GetClientFormData()
{
return _filledAutofillFieldCollection;
}
}
}

30
src/Android/AutofillFrameworkService.cs
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@ -1,30 +0,0 @@
using Android;
using Android.App;
using Android.OS;
using Android.Runtime;
using Android.Service.Autofill;
using Android.Util;
namespace Bit.Android
{
[Service(Permission = Manifest.Permission.BindAutofillService, Label = "bitwarden")]
[IntentFilter(new string[] { "android.service.autofill.AutofillService" })]
[MetaData("android.autofill", Resource = "@xml/autofillservice")]
[Register("com.x8bit.bitwarden.AutofillFrameworkService")]
public class AutofillFrameworkService : global::Android.Service.Autofill.AutofillService
{
public override void OnFillRequest(FillRequest request, CancellationSignal cancellationSignal, FillCallback callback)
{
var structure = request.FillContexts[request.FillContexts.Count - 1].Structure;
var data = request.ClientState;
}
public override void OnSaveRequest(SaveRequest request, SaveCallback callback)
{
var context = request.FillContexts;
var structure = context[context.Count - 1].Structure;
var data = request.ClientState;
}
}
}

630
src/Android/AutofillFrameworkService_OLD.cs
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@ -1,630 +0,0 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Service.Autofill;
using Android.Views;
using Android.Widget;
using Android.Views.Autofill;
using static Android.App.Assist.AssistStructure;
using Android.Text;
using Android.App.Assist;
namespace Bit.Android
{
//[Service(Permission = global::Android.Manifest.Permission.BindAutofillService, Label = "bitwarden")]
//[IntentFilter(new string[] { "android.service.autofill.AutofillService" })]
//[MetaData("android.autofill", Resource = "@xml/autofillservice")]
public class AutofillFrameworkService_OLD : global::Android.Service.Autofill.AutofillService
{
public 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 StructureParser(structure);
parser.ParseForFill();
// build response
var responseBuilder = new FillResponse.Builder();
var username1 = new FilledAutofillField { TextValue = "username1" };
var password1 = new FilledAutofillField { TextValue = "pass1" };
var login1 = new Dictionary<string, FilledAutofillField>
{
{ View.AutofillHintUsername, username1 },
{ View.AutofillHintPassword, password1 }
};
var coll = new FilledAutofillFieldCollection("Login 1 Name", login1);
var username2 = new FilledAutofillField { TextValue = "username2" };
var password2 = new FilledAutofillField { TextValue = "pass2" };
var login2 = new Dictionary<string, FilledAutofillField>
{
{ View.AutofillHintUsername, username2 },
{ View.AutofillHintPassword, password2 }
};
var col2 = new FilledAutofillFieldCollection("Login 2 Name", login2);
var clientFormDataMap = new Dictionary<string, FilledAutofillFieldCollection>
{
{ "login-1-guid", coll },
{ "login-2-guid", col2 }
};
var response = AutofillHelper.NewResponse(this, false, parser.AutofillFields, clientFormDataMap);
// end build response
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 StructureParser(structure);
parser.ParseForSave();
var filledAutofillFieldCollection = parser.GetClientFormData();
//SaveFilledAutofillFieldCollection(filledAutofillFieldCollection);
}
}
/////////////////// Helper Classes ///////////////////////
public class StructureParser
{
private readonly AssistStructure _structure;
private FilledAutofillFieldCollection _filledAutofillFieldCollection;
public StructureParser(AssistStructure structure)
{
_structure = structure;
}
public AutofillFieldMetadataCollection AutofillFields { get; private set; }
= new AutofillFieldMetadataCollection();
public void ParseForFill()
{
Parse(true);
}
public void ParseForSave()
{
Parse(false);
}
/**
* Traverse AssistStructure and add ViewNode metadata to a flat list.
*/
private void Parse(bool forFill)
{
_filledAutofillFieldCollection = new FilledAutofillFieldCollection();
for(var i = 0; i < _structure.WindowNodeCount; i++)
{
var node = _structure.GetWindowNodeAt(i);
var view = node.RootViewNode;
ParseLocked(forFill, view);
}
}
private void ParseLocked(bool forFill, ViewNode viewNode)
{
var autofillHints = viewNode.GetAutofillHints();
var autofillType = viewNode.AutofillType;
var inputType = viewNode.InputType;
var isEditText = viewNode.ClassName == "android.widget.EditText";
if(isEditText || (autofillHints?.Length ?? 0) > 0)
{
if(forFill)
{
AutofillFields.Add(new AutofillFieldMetadata(viewNode));
}
else
{
_filledAutofillFieldCollection.Add(new FilledAutofillField(viewNode));
}
}
for(var i = 0; i < viewNode.ChildCount; i++)
{
ParseLocked(forFill, viewNode.GetChildAt(i));
}
}
public FilledAutofillFieldCollection GetClientFormData()
{
return _filledAutofillFieldCollection;
}
}
public class AutofillFieldMetadataCollection
{
private int _size = 0;
public List<int> Ids { get; private set; } = new List<int>();
public List<AutofillId> AutofillIds { get; private set; } = new List<AutofillId>();
public SaveDataType SaveType { get; private set; } = SaveDataType.Generic;
public List<string> AutofillHints { get; private set; } = new List<string>();
public List<string> FocusedAutofillHints { get; private set; } = new List<string>();
public List<AutofillFieldMetadata> Feilds { get; private set; }
public IDictionary<int, AutofillFieldMetadata> IdToFieldMap { get; private set; } =
new Dictionary<int, AutofillFieldMetadata>();
public IDictionary<string, List<AutofillFieldMetadata>> AutofillHintsToFieldsMap { get; private set; } =
new Dictionary<string, List<AutofillFieldMetadata>>();
public void Add(AutofillFieldMetadata data)
{
_size++;
SaveType |= data.SaveType;
Ids.Add(data.Id);
AutofillIds.Add(data.AutofillId);
IdToFieldMap.Add(data.Id, data);
if((data.AutofillHints?.Count ?? 0) > 0)
{
AutofillHints.AddRange(data.AutofillHints);
if(data.IsFocused)
{
FocusedAutofillHints.AddRange(data.AutofillHints);
}
foreach(var hint in data.AutofillHints)
{
if(!AutofillHintsToFieldsMap.ContainsKey(hint))
{
AutofillHintsToFieldsMap.Add(hint, new List<AutofillFieldMetadata>());
}
AutofillHintsToFieldsMap[hint].Add(data);
}
}
}
}
public class AutofillFieldMetadata
{
private List<string> _autofillHints;
private string[] _autofillOptions;
public AutofillFieldMetadata(ViewNode view)
{
_autofillOptions = view.GetAutofillOptions();
Id = view.Id;
AutofillId = view.AutofillId;
AutofillType = view.AutofillType;
InputType = view.InputType;
IsFocused = view.IsFocused;
AutofillHints = AutofillHelper.FilterForSupportedHints(view.GetAutofillHints())?.ToList() ?? new List<string>();
}
public SaveDataType SaveType { get; set; } = SaveDataType.Generic;
public List<string> AutofillHints
{
get { return _autofillHints; }
set
{
_autofillHints = value;
UpdateSaveTypeFromHints();
}
}
public int Id { get; private set; }
public AutofillId AutofillId { get; private set; }
public AutofillType AutofillType { get; private set; }
public InputTypes InputType { get; private set; }
public bool IsFocused { get; private set; }
/**
* When the {@link ViewNode} is a list that the user needs to choose a string from (i.e. a
* spinner), this is called to return the index of a specific item in the list.
*/
public int GetAutofillOptionIndex(string value)
{
for(var i = 0; i < _autofillOptions.Length; i++)
{
if(_autofillOptions[i].Equals(value))
{
return i;
}
}
return -1;
}
private void UpdateSaveTypeFromHints()
{
SaveType = SaveDataType.Generic;
if(_autofillHints == null)
{
return;
}
foreach(var hint in _autofillHints)
{
switch(hint)
{
case View.AutofillHintCreditCardExpirationDate:
case View.AutofillHintCreditCardExpirationDay:
case View.AutofillHintCreditCardExpirationMonth:
case View.AutofillHintCreditCardExpirationYear:
case View.AutofillHintCreditCardNumber:
case View.AutofillHintCreditCardSecurityCode:
SaveType |= SaveDataType.CreditCard;
break;
case View.AutofillHintEmailAddress:
SaveType |= SaveDataType.EmailAddress;
break;
case View.AutofillHintPhone:
case View.AutofillHintName:
SaveType |= SaveDataType.Generic;
break;
case View.AutofillHintPassword:
SaveType |= SaveDataType.Password;
SaveType &= ~SaveDataType.EmailAddress;
SaveType &= ~SaveDataType.Username;
break;
case View.AutofillHintPostalAddress:
case View.AutofillHintPostalCode:
SaveType |= SaveDataType.Address;
break;
case View.AutofillHintUsername:
SaveType |= SaveDataType.Username;
break;
}
}
}
}
public class FilledAutofillField
{
/**
* Does not need to be serialized into persistent storage, so it's not exposed.
*/
private string[] _autofillHints = null;
public FilledAutofillField() { }
public FilledAutofillField(ViewNode viewNode)
{
_autofillHints = AutofillHelper.FilterForSupportedHints(viewNode.GetAutofillHints());
var autofillValue = viewNode.AutofillValue;
if(autofillValue != null)
{
if(autofillValue.IsList)
{
var autofillOptions = viewNode.GetAutofillOptions();
int index = autofillValue.ListValue;
if(autofillOptions != null && autofillOptions.Length > 0)
{
TextValue = autofillOptions[index];
}
}
else if(autofillValue.IsDate)
{
DateValue = autofillValue.DateValue;
}
else if(autofillValue.IsText)
{
// Using toString of AutofillValue.getTextValue in order to save it to
// SharedPreferences.
TextValue = autofillValue.TextValue;
}
}
}
public string TextValue { get; set; }
public long? DateValue { get; set; }
public bool? ToggleValue { get; set; }
public string[] GetAutofillHints()
{
return _autofillHints;
}
public bool IsNull()
{
return TextValue == null && DateValue == null && ToggleValue == null;
}
public override bool Equals(object o)
{
if(this == o)
return true;
if(o == null || GetType() != o.GetType())
return false;
var that = (FilledAutofillField)o;
if(TextValue != null ? !TextValue.Equals(that.TextValue) : that.TextValue != null)
return false;
if(DateValue != null ? !DateValue.Equals(that.DateValue) : that.DateValue != null)
return false;
return ToggleValue != null ? ToggleValue.Equals(that.ToggleValue) : that.ToggleValue == null;
}
public override int GetHashCode()
{
var result = TextValue != null ? TextValue.GetHashCode() : 0;
result = 31 * result + (DateValue != null ? DateValue.GetHashCode() : 0);
result = 31 * result + (ToggleValue != null ? ToggleValue.GetHashCode() : 0);
return result;
}
}
public class FilledAutofillFieldCollection
{
public FilledAutofillFieldCollection()
: this(null, new Dictionary<string, FilledAutofillField>())
{
}
public FilledAutofillFieldCollection(string datasetName, IDictionary<string, FilledAutofillField> hintMap)
{
HintMap = hintMap;
DatasetName = datasetName;
}
public IDictionary<string, FilledAutofillField> HintMap { get; private set; }
public string DatasetName { get; set; }
/**
* Adds a {@code FilledAutofillField} to the collection, indexed by all of its hints.
*/
public void Add(FilledAutofillField filledAutofillField)
{
if(filledAutofillField == null)
{
throw new ArgumentNullException(nameof(filledAutofillField));
}
var autofillHints = filledAutofillField.GetAutofillHints();
foreach(var hint in autofillHints)
{
HintMap.Add(hint, filledAutofillField);
}
}
/**
* Populates a {@link Dataset.Builder} with appropriate values for each {@link AutofillId}
* in a {@code AutofillFieldMetadataCollection}.
*
* In other words, it constructs an autofill
* {@link Dataset.Builder} by applying saved values (from this {@code FilledAutofillFieldCollection})
* to Views specified in a {@code AutofillFieldMetadataCollection}, which represents the current
* page the user is on.
*/
public bool ApplyToFields(AutofillFieldMetadataCollection autofillFieldMetadataCollection,
Dataset.Builder datasetBuilder)
{
var setValueAtLeastOnce = false;
var allHints = autofillFieldMetadataCollection.AutofillHints;
for(var hintIndex = 0; hintIndex < allHints.Count; hintIndex++)
{
var hint = allHints[hintIndex];
if(!autofillFieldMetadataCollection.AutofillHintsToFieldsMap.ContainsKey(hint))
{
continue;
}
var fillableAutofillFields = autofillFieldMetadataCollection.AutofillHintsToFieldsMap[hint];
for(var autofillFieldIndex = 0; autofillFieldIndex < fillableAutofillFields.Count; autofillFieldIndex++)
{
if(!HintMap.ContainsKey(hint))
{
continue;
}
var filledAutofillField = HintMap[hint];
var autofillFieldMetadata = fillableAutofillFields[autofillFieldIndex];
var autofillId = autofillFieldMetadata.AutofillId;
var autofillType = autofillFieldMetadata.AutofillType;
switch(autofillType)
{
case AutofillType.List:
int listValue = autofillFieldMetadata.GetAutofillOptionIndex(filledAutofillField.TextValue);
if(listValue != -1)
{
datasetBuilder.SetValue(autofillId, AutofillValue.ForList(listValue));
setValueAtLeastOnce = true;
}
break;
case AutofillType.Date:
var dateValue = filledAutofillField.DateValue;
if(dateValue != null)
{
datasetBuilder.SetValue(autofillId, AutofillValue.ForDate(dateValue.Value));
setValueAtLeastOnce = true;
}
break;
case AutofillType.Text:
var textValue = filledAutofillField.TextValue;
if(textValue != null)
{
datasetBuilder.SetValue(autofillId, AutofillValue.ForText(textValue));
setValueAtLeastOnce = true;
}
break;
case AutofillType.Toggle:
var toggleValue = filledAutofillField.ToggleValue;
if(toggleValue != null)
{
datasetBuilder.SetValue(autofillId, AutofillValue.ForToggle(toggleValue.Value));
setValueAtLeastOnce = true;
}
break;
case AutofillType.None:
default:
break;
}
}
}
return setValueAtLeastOnce;
}
/**
* Takes in a list of autofill hints (`autofillHints`), usually associated with a View or set of
* Views. Returns whether any of the filled fields on the page have at least 1 of these
* `autofillHint`s.
*/
public bool HelpsWithHints(List<String> autofillHints)
{
for(var i = 0; i < autofillHints.Count; i++)
{
if(HintMap.ContainsKey(autofillHints[i]) && !HintMap[autofillHints[i]].IsNull())
{
return true;
}
}
return false;
}
}
public static class AutofillHelper
{
/**
* Wraps autofill data in a LoginCredential Dataset object which can then be sent back to the
* client View.
*/
public static Dataset NewDataset(Context context, AutofillFieldMetadataCollection autofillFields,
FilledAutofillFieldCollection filledAutofillFieldCollection, bool datasetAuth)
{
var datasetName = filledAutofillFieldCollection.DatasetName;
if(datasetName != null)
{
Dataset.Builder datasetBuilder;
if(datasetAuth)
{
datasetBuilder = new Dataset.Builder(
NewRemoteViews(context.PackageName, datasetName, "username", Resource.Drawable.fa_lock));
//IntentSender sender = AuthActivity.getAuthIntentSenderForDataset(context, datasetName);
//datasetBuilder.SetAuthentication(sender);
}
else
{
datasetBuilder = new Dataset.Builder(
NewRemoteViews(context.PackageName, datasetName, "username", Resource.Drawable.user));
}
var setValueAtLeastOnce = filledAutofillFieldCollection.ApplyToFields(autofillFields, datasetBuilder);
if(setValueAtLeastOnce)
{
return datasetBuilder.Build();
}
}
return null;
}
public static RemoteViews NewRemoteViews(string packageName, string text, string subtext, int iconId)
{
var views = new RemoteViews(packageName, Resource.Layout.autofill_listitem);
views.SetTextViewText(Resource.Id.text, text);
views.SetTextViewText(Resource.Id.text2, subtext);
views.SetImageViewResource(Resource.Id.icon, iconId);
return views;
}
/**
* Wraps autofill data in a Response object (essentially a series of Datasets) which can then
* be sent back to the client View.
*/
public static FillResponse NewResponse(Context context, bool datasetAuth,
AutofillFieldMetadataCollection autofillFields,
IDictionary<string, FilledAutofillFieldCollection> clientFormDataMap)
{
var responseBuilder = new FillResponse.Builder();
if(clientFormDataMap != null)
{
foreach(var datasetName in clientFormDataMap.Keys)
{
if(clientFormDataMap.ContainsKey(datasetName))
{
var dataset = NewDataset(context, autofillFields, clientFormDataMap[datasetName], datasetAuth);
if(dataset != null)
{
responseBuilder.AddDataset(dataset);
}
}
}
}
if(autofillFields.SaveType != SaveDataType.Generic)
{
responseBuilder.SetSaveInfo(
new SaveInfo.Builder(autofillFields.SaveType, autofillFields.AutofillIds.ToArray()).Build());
return responseBuilder.Build();
}
else
{
//Log.d(TAG, "These fields are not meant to be saved by autofill.");
return null;
}
}
public static string[] FilterForSupportedHints(string[] hints)
{
if((hints?.Length ?? 0) == 0)
{
return new string[0];
}
var filteredHints = new string[hints.Length];
var i = 0;
foreach(var hint in hints)
{
if(IsValidHint(hint))
{
filteredHints[i++] = hint;
}
}
var finalFilteredHints = new string[i];
Array.Copy(filteredHints, 0, finalFilteredHints, 0, i);
return finalFilteredHints;
}
public static bool IsValidHint(string hint)
{
switch(hint)
{
case View.AutofillHintCreditCardExpirationDate:
case View.AutofillHintCreditCardExpirationDay:
case View.AutofillHintCreditCardExpirationMonth:
case View.AutofillHintCreditCardExpirationYear:
case View.AutofillHintCreditCardNumber:
case View.AutofillHintCreditCardSecurityCode:
case View.AutofillHintEmailAddress:
case View.AutofillHintPhone:
case View.AutofillHintName:
case View.AutofillHintPassword:
case View.AutofillHintPostalAddress:
case View.AutofillHintPostalCode:
case View.AutofillHintUsername:
return true;
default:
return false;
}
}
}
}