| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.biometrics.sensors.fingerprint.aidl; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.hardware.biometrics.BiometricOverlayConstants; |
| import android.hardware.biometrics.common.ICancellationSignal; |
| import android.hardware.fingerprint.FingerprintAuthenticateOptions; |
| import android.hardware.fingerprint.IUdfpsOverlay; |
| import android.hardware.fingerprint.IUdfpsOverlayController; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.util.Slog; |
| |
| import com.android.server.biometrics.BiometricsProto; |
| import com.android.server.biometrics.log.BiometricContext; |
| import com.android.server.biometrics.log.BiometricLogger; |
| import com.android.server.biometrics.log.OperationContextExt; |
| import com.android.server.biometrics.sensors.AcquisitionClient; |
| import com.android.server.biometrics.sensors.ClientMonitorCallback; |
| import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter; |
| import com.android.server.biometrics.sensors.DetectionConsumer; |
| import com.android.server.biometrics.sensors.SensorOverlays; |
| |
| import java.util.function.Supplier; |
| |
| /** |
| * Performs fingerprint detection without exposing any matching information (e.g. accept/reject |
| * have the same haptic, lockout counter is not increased). |
| */ |
| class FingerprintDetectClient extends AcquisitionClient<AidlSession> implements DetectionConsumer { |
| |
| private static final String TAG = "FingerprintDetectClient"; |
| |
| private final boolean mIsStrongBiometric; |
| private final FingerprintAuthenticateOptions mOptions; |
| @NonNull private final SensorOverlays mSensorOverlays; |
| @Nullable private ICancellationSignal mCancellationSignal; |
| |
| FingerprintDetectClient(@NonNull Context context, @NonNull Supplier<AidlSession> lazyDaemon, |
| @NonNull IBinder token, long requestId, |
| @NonNull ClientMonitorCallbackConverter listener, |
| @NonNull FingerprintAuthenticateOptions options, |
| @NonNull BiometricLogger biometricLogger, @NonNull BiometricContext biometricContext, |
| @Nullable IUdfpsOverlayController udfpsOverlayController, |
| @Nullable IUdfpsOverlay udfpsOverlay, |
| boolean isStrongBiometric) { |
| super(context, lazyDaemon, token, listener, options.getUserId(), |
| options.getOpPackageName(), 0 /* cookie */, options.getSensorId(), |
| true /* shouldVibrate */, biometricLogger, biometricContext); |
| setRequestId(requestId); |
| mIsStrongBiometric = isStrongBiometric; |
| mSensorOverlays = new SensorOverlays(udfpsOverlayController, |
| null /* sideFpsController*/, udfpsOverlay); |
| mOptions = options; |
| } |
| |
| @Override |
| public void start(@NonNull ClientMonitorCallback callback) { |
| super.start(callback); |
| startHalOperation(); |
| } |
| |
| @Override |
| protected void stopHalOperation() { |
| mSensorOverlays.hide(getSensorId()); |
| unsubscribeBiometricContext(); |
| |
| if (mCancellationSignal != null) { |
| try { |
| mCancellationSignal.cancel(); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Remote exception", e); |
| mCallback.onClientFinished(this, false /* success */); |
| } |
| } |
| } |
| |
| @Override |
| protected void startHalOperation() { |
| mSensorOverlays.show(getSensorId(), BiometricOverlayConstants.REASON_AUTH_KEYGUARD, |
| this); |
| |
| try { |
| mCancellationSignal = doDetectInteraction(); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Remote exception when requesting finger detect", e); |
| mSensorOverlays.hide(getSensorId()); |
| mCallback.onClientFinished(this, false /* success */); |
| } |
| } |
| |
| private ICancellationSignal doDetectInteraction() throws RemoteException { |
| final AidlSession session = getFreshDaemon(); |
| |
| if (session.hasContextMethods()) { |
| final OperationContextExt opContext = getOperationContext(); |
| final ICancellationSignal cancel = session.getSession().detectInteractionWithContext( |
| opContext.toAidlContext(mOptions)); |
| getBiometricContext().subscribe(opContext, ctx -> { |
| try { |
| session.getSession().onContextChanged(ctx); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Unable to notify context changed", e); |
| } |
| }); |
| return cancel; |
| } else { |
| return session.getSession().detectInteraction(); |
| } |
| } |
| |
| @Override |
| public void onInteractionDetected() { |
| vibrateSuccess(); |
| |
| try { |
| getListener().onDetected(getSensorId(), getTargetUserId(), mIsStrongBiometric); |
| mCallback.onClientFinished(this, true /* success */); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Remote exception when sending onDetected", e); |
| mCallback.onClientFinished(this, false /* success */); |
| } |
| } |
| |
| @Override |
| public int getProtoEnum() { |
| return BiometricsProto.CM_DETECT_INTERACTION; |
| } |
| |
| @Override |
| public boolean interruptsPrecedingClients() { |
| return true; |
| } |
| } |