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Code Issues Releases Wiki Activity

Accessibility service WIP

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This commit is contained in:
Kyle Spearrin
2017-01-30 19:26:39 -05:00
parent 0beb07c87e
commit 36c6c5a35e
12 changed files with 310 additions and 150 deletions
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76
src/Android/AutofillService.cs
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@@ -15,17 +15,17 @@ namespace Bit.Android
public class AutofillService : AccessibilityService
{
private const int AutoFillNotificationId = 34573;
private const string AndroidAppProtocol = "androidapp://";
private const string SystemUiPackage = "com.android.systemui";
private const string ChromePackage = "com.android.chrome";
private const string BrowserPackage = "com.android.browser";
private const string BitwardenPackage = "com.x8bit.bitwarden";
public override void OnAccessibilityEvent(AccessibilityEvent e)
{
var eventType = e.EventType;
var packageName = e.PackageName;
if(packageName == SystemUiPackage)
if(packageName == SystemUiPackage || packageName == BitwardenPackage)
{
return;
}
@@ -34,15 +34,14 @@ namespace Bit.Android
{
case EventTypes.WindowContentChanged:
case EventTypes.WindowStateChanged:
var cancelNotification = true;
var root = RootInActiveWindow;
var isChrome = root == null ? false : root.PackageName == ChromePackage;
var cancelNotification = true;
var avialablePasswordNodes = GetNodeOrChildren(root, n => AvailablePasswordField(n, isChrome));
var avialablePasswordNodes = GetWindowNodes(root, e, n => AvailablePasswordField(n, isChrome));
if(avialablePasswordNodes.Any() && AnyNodeOrChildren(root, n => n.WindowId == e.WindowId &&
!(n.ViewIdResourceName != null && n.ViewIdResourceName.StartsWith(SystemUiPackage))))
if(avialablePasswordNodes.Any())
{
var uri = string.Concat(AndroidAppProtocol, root.PackageName);
var uri = string.Concat(App.Constants.AndroidAppProtocol, root.PackageName);
if(isChrome)
{
var addressNode = root.FindAccessibilityNodeInfosByViewId("com.android.chrome:id/url_bar")
@@ -57,23 +56,25 @@ namespace Bit.Android
uri = ExtractUriFromAddressField(uri, addressNode);
}
var allEditTexts = GetNodeOrChildren(root, n => EditText(n));
var usernameEditText = allEditTexts.TakeWhile(n => !n.Password).LastOrDefault();
if(AutofillActivity.LastCredentials != null && SameUri(AutofillActivity.LastCredentials.LastUri, uri))
if(NeedToAutofill(AutofillActivity.LastCredentials, uri))
{
var allEditTexts = GetWindowNodes(root, e, n => EditText(n));
var usernameEditText = allEditTexts.TakeWhile(n => !n.Password).LastOrDefault();
FillCredentials(usernameEditText, avialablePasswordNodes);
}
else
{
AskFillPassword(uri, usernameEditText, avialablePasswordNodes);
NotifyToAutofill(uri);
cancelNotification = false;
}
AutofillActivity.LastCredentials = null;
}
if(cancelNotification)
{
((NotificationManager)GetSystemService(NotificationService)).Cancel(AutoFillNotificationId);
var notificationManager = ((NotificationManager)GetSystemService(NotificationService));
notificationManager.Cancel(AutoFillNotificationId);
}
break;
default:
@@ -100,11 +101,21 @@ namespace Bit.Android
return uri;
}
private bool SameUri(string uriString1, string uriString2)
/// <summary>
/// Check to make sure it is ok to autofill still on the current screen
/// </summary>
private bool NeedToAutofill(AutofillCredentials creds, string currentUriString)
{
Uri uri1, uri2;
if(Uri.TryCreate(uriString1, UriKind.RelativeOrAbsolute, out uri1) &&
Uri.TryCreate(uriString2, UriKind.RelativeOrAbsolute, out uri2) && uri1.Host == uri2.Host)
if(creds == null)
{
return false;
}
Uri credsUri, lastUri, currentUri;
if(Uri.TryCreate(creds.Uri, UriKind.Absolute, out credsUri) &&
Uri.TryCreate(creds.LastUri, UriKind.Absolute, out lastUri) &&
Uri.TryCreate(currentUriString, UriKind.Absolute, out currentUri) &&
credsUri.Host == currentUri.Host && lastUri.Host == currentUri.Host)
{
return true;
}
@@ -124,8 +135,7 @@ namespace Bit.Android
return n.ClassName != null && n.ClassName.Contains("EditText");
}
private void AskFillPassword(string uri, AccessibilityNodeInfo usernameNode,
IEnumerable<AccessibilityNodeInfo> passwordNodes)
private void NotifyToAutofill(string uri)
{
var intent = new Intent(this, typeof(AutofillActivity));
intent.PutExtra("uri", uri);
@@ -134,10 +144,10 @@ namespace Bit.Android
var builder = new Notification.Builder(this);
builder.SetSmallIcon(Resource.Drawable.notification_sm)
.SetContentText("Tap this notification to autofill a login from your bitwarden vault.")
.SetContentTitle("bitwarden Autofill Service")
.SetWhen(Java.Lang.JavaSystem.CurrentTimeMillis())
.SetContentText("Tap this notification to autofill a login from your bitwarden vault.")
.SetTicker("Tap this notification to autofill a login from your bitwarden vault.")
.SetWhen(Java.Lang.JavaSystem.CurrentTimeMillis())
.SetVisibility(NotificationVisibility.Secret)
.SetContentIntent(pendingIntent);
@@ -148,39 +158,37 @@ namespace Bit.Android
private void FillCredentials(AccessibilityNodeInfo usernameNode, IEnumerable<AccessibilityNodeInfo> passwordNodes)
{
FillEditText(usernameNode, AutofillActivity.LastCredentials.Username);
foreach(var pNode in passwordNodes)
foreach(var n in passwordNodes)
{
FillEditText(pNode, AutofillActivity.LastCredentials.Password);
FillEditText(n, AutofillActivity.LastCredentials.Password);
}
AutofillActivity.LastCredentials = null;
}
private static void FillEditText(AccessibilityNodeInfo editTextNode, string value)
{
if(editTextNode == null || value == null)
{
return;
}
var bundle = new Bundle();
bundle.PutString(AccessibilityNodeInfo.ActionArgumentSetTextCharsequence, value);
editTextNode.PerformAction(global::Android.Views.Accessibility.Action.SetText, bundle);
}
private bool AnyNodeOrChildren(AccessibilityNodeInfo n, Func<AccessibilityNodeInfo, bool> p)
{
return GetNodeOrChildren(n, p).Any();
}
private IEnumerable<AccessibilityNodeInfo> GetNodeOrChildren(AccessibilityNodeInfo n,
Func<AccessibilityNodeInfo, bool> p)
private IEnumerable<AccessibilityNodeInfo> GetWindowNodes(AccessibilityNodeInfo n,
AccessibilityEvent e, Func<AccessibilityNodeInfo, bool> p)
{
if(n != null)
{
if(p(n))
if(n.WindowId == e.WindowId && !(n.ViewIdResourceName?.StartsWith(SystemUiPackage) ?? false) && p(n))
{
yield return n;
}
for(int i = 0; i < n.ChildCount; i++)
{
foreach(var node in GetNodeOrChildren(n.GetChild(i), p))
foreach(var node in GetWindowNodes(n.GetChild(i), e, p))
{
yield return node;
}