Read and cache features when user switches

Bug: 163830899
Test: Verified feature is stored to secure setting.

1. Flashed flame device to QDA release build
2. Verified require_attention was being reported as 1
3. Flashed to most recent change, verified require_attention setting
was upated to 0.

Change-Id: I0187e27b641edf0836fa187530cb2a193082fe5d

services/core/java/com/android/server/biometrics/sensors/face/Face10.java

@@ -25,12 +25,14 @@ import android.app.UserSwitchObserver;
 import android.content.Context;
 import android.content.pm.UserInfo;
 import android.hardware.biometrics.BiometricConstants;
+import android.hardware.biometrics.BiometricFaceConstants;
 import android.hardware.biometrics.BiometricsProtoEnums;
 import android.hardware.biometrics.face.V1_0.IBiometricsFace;
 import android.hardware.biometrics.face.V1_0.IBiometricsFaceClientCallback;
 import android.hardware.face.Face;
 import android.hardware.face.FaceSensorProperties;
 import android.hardware.face.IFaceServiceReceiver;
+import android.os.Binder;
 import android.os.Build;
 import android.os.Handler;
 import android.os.IBinder;
@@ -109,6 +111,9 @@ class Face10 implements IHwBinder.DeathRecipient {
         @Override
         public void onUserSwitching(int newUserId) {
             scheduleInternalCleanup(newUserId);
+            scheduleGetFeature(new Binder(), newUserId,
+                    BiometricFaceConstants.FEATURE_REQUIRE_ATTENTION,
+                    null, mContext.getOpPackageName());
         }
     };
 
@@ -360,6 +365,9 @@ class Face10 implements IHwBinder.DeathRecipient {
         if (halId != 0) {
             scheduleLoadAuthenticatorIds();
             scheduleInternalCleanup(ActivityManager.getCurrentUser());
+            scheduleGetFeature(new Binder(), ActivityManager.getCurrentUser(),
+                    BiometricFaceConstants.FEATURE_REQUIRE_ATTENTION,
+                    null, mContext.getOpPackageName());
         } else {
             Slog.e(TAG, "Unable to set callback");
             mDaemon = null;
@@ -450,7 +458,7 @@ class Face10 implements IHwBinder.DeathRecipient {
     }
 
     void scheduleGetFeature(@NonNull IBinder token, int userId, int feature,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName) {
+            @Nullable ClientMonitorCallbackConverter listener, @NonNull String opPackageName) {
         mHandler.post(() -> {
             final List<Face> faces = getEnrolledFaces(userId);
             if (faces.isEmpty()) {
@@ -461,10 +469,22 @@ class Face10 implements IHwBinder.DeathRecipient {
             scheduleUpdateActiveUserWithoutHandler(userId);
 
             final int faceId = faces.get(0).getBiometricId();
-            final FaceGetFeatureClient client = new FaceGetFeatureClient(mContext,
-                    mLazyDaemon, token, new ClientMonitorCallbackConverter(receiver), userId,
-                    opPackageName, mSensorId, feature, faceId);
-            mScheduler.scheduleClientMonitor(client);
+            final FaceGetFeatureClient client = new FaceGetFeatureClient(mContext, mLazyDaemon,
+                    token, listener, userId, opPackageName, mSensorId, feature, faceId);
+            mScheduler.scheduleClientMonitor(client, new ClientMonitor.Callback() {
+                @Override
+                public void onClientFinished(
+                        @NonNull ClientMonitor<?> clientMonitor, boolean success) {
+                    if (success && feature == BiometricFaceConstants.FEATURE_REQUIRE_ATTENTION) {
+                        final int settingsValue = client.getValue() ? 1 : 0;
+                        Slog.d(TAG, "Updating attention value for user: " + userId
+                                + " to value: " + settingsValue);
+                        Settings.Secure.putIntForUser(mContext.getContentResolver(),
+                                Settings.Secure.FACE_UNLOCK_ATTENTION_REQUIRED,
+                                settingsValue, userId);
+                    }
+                }
+            });
         });
     }
 

services/core/java/com/android/server/biometrics/sensors/face/FaceGetFeatureClient.java

@@ -17,6 +17,7 @@
 package com.android.server.biometrics.sensors.face;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.content.Context;
 import android.hardware.biometrics.BiometricsProtoEnums;
 import android.hardware.biometrics.face.V1_0.IBiometricsFace;
@@ -39,9 +40,10 @@ public class FaceGetFeatureClient extends ClientMonitor<IBiometricsFace> {
 
     private final int mFeature;
     private final int mFaceId;
+    private boolean mValue;
 
     FaceGetFeatureClient(@NonNull Context context, @NonNull LazyDaemon<IBiometricsFace> lazyDaemon,
-            @NonNull IBinder token, @NonNull ClientMonitorCallbackConverter listener, int userId,
+            @NonNull IBinder token, @Nullable ClientMonitorCallbackConverter listener, int userId,
             @NonNull String owner, int sensorId, int feature, int faceId) {
         super(context, lazyDaemon, token, listener, userId, owner, 0 /* cookie */, sensorId,
                 BiometricsProtoEnums.MODALITY_UNKNOWN, BiometricsProtoEnums.ACTION_UNKNOWN,
@@ -54,7 +56,9 @@ public class FaceGetFeatureClient extends ClientMonitor<IBiometricsFace> {
     @Override
     public void unableToStart() {
         try {
-            getListener().onFeatureGet(false /* success */, mFeature, false /* value */);
+            if (getListener() != null) {
+                getListener().onFeatureGet(false /* success */, mFeature, false /* value */);
+            }
         } catch (RemoteException e) {
             Slog.e(TAG, "Unable to send error", e);
         }
@@ -70,11 +74,18 @@ public class FaceGetFeatureClient extends ClientMonitor<IBiometricsFace> {
     protected void startHalOperation() {
         try {
             final OptionalBool result = getFreshDaemon().getFeature(mFeature, mFaceId);
-            getListener().onFeatureGet(result.status == Status.OK, mFeature, result.value);
+            mValue = result.value;
+            if (getListener() != null) {
+                getListener().onFeatureGet(result.status == Status.OK, mFeature, mValue);
+            }
             mCallback.onClientFinished(this, true /* success */);
         } catch (RemoteException e) {
             Slog.e(TAG, "Unable to getFeature", e);
             mCallback.onClientFinished(this, false /* success */);
         }
     }
+
+    boolean getValue() {
+        return mValue;
+    }
 }

services/core/java/com/android/server/biometrics/sensors/face/FaceService.java

@@ -25,9 +25,9 @@ import android.hardware.biometrics.BiometricsProtoEnums;
 import android.hardware.biometrics.IBiometricSensorReceiver;
 import android.hardware.biometrics.IBiometricServiceLockoutResetCallback;
 import android.hardware.face.Face;
+import android.hardware.face.FaceSensorProperties;
 import android.hardware.face.IFaceService;
 import android.hardware.face.IFaceServiceReceiver;
-import android.hardware.face.FaceSensorProperties;
 import android.os.Binder;
 import android.os.IBinder;
 import android.os.NativeHandle;
@@ -303,7 +303,8 @@ public class FaceService extends SystemService {
         public void getFeature(final IBinder token, int userId, int feature,
                 IFaceServiceReceiver receiver, final String opPackageName) {
             Utils.checkPermission(getContext(), MANAGE_BIOMETRIC);
-            mFace10.scheduleGetFeature(token, userId, feature, receiver, opPackageName);
+            mFace10.scheduleGetFeature(token, userId, feature,
+                    new ClientMonitorCallbackConverter(receiver), opPackageName);
         }
 
         @Override // Binder call