86 lines
3.2 KiB
Java
86 lines
3.2 KiB
Java
/*
|
|
* Copyright (C) 2023 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 android.hardware.face;
|
|
|
|
import android.annotation.NonNull;
|
|
import android.content.Context;
|
|
import android.hardware.biometrics.BiometricAuthenticator;
|
|
import android.hardware.biometrics.BiometricManager;
|
|
import android.hardware.biometrics.common.CommonProps;
|
|
import android.hardware.biometrics.common.SensorStrength;
|
|
import android.hardware.biometrics.face.SensorProps;
|
|
|
|
import com.android.internal.R;
|
|
|
|
/**
|
|
* Parse HIDL face sensor config and map it to SensorProps.aidl to match AIDL.
|
|
* See core/res/res/values/config.xml config_biometric_sensors
|
|
* @hide
|
|
*/
|
|
public final class HidlFaceSensorConfig extends SensorProps {
|
|
private int mSensorId;
|
|
private int mModality;
|
|
private int mStrength;
|
|
|
|
/**
|
|
* Parse through the config string and map it to SensorProps.aidl.
|
|
* @throws IllegalArgumentException when config string has unexpected format
|
|
*/
|
|
public void parse(@NonNull String config, @NonNull Context context)
|
|
throws IllegalArgumentException {
|
|
final String[] elems = config.split(":");
|
|
if (elems.length < 3) {
|
|
throw new IllegalArgumentException();
|
|
}
|
|
mSensorId = Integer.parseInt(elems[0]);
|
|
mModality = Integer.parseInt(elems[1]);
|
|
mStrength = Integer.parseInt(elems[2]);
|
|
mapHidlToAidlFaceSensorConfigurations(context);
|
|
}
|
|
|
|
@BiometricAuthenticator.Modality
|
|
public int getModality() {
|
|
return mModality;
|
|
}
|
|
|
|
private void mapHidlToAidlFaceSensorConfigurations(@NonNull Context context) {
|
|
commonProps = new CommonProps();
|
|
commonProps.sensorId = mSensorId;
|
|
commonProps.sensorStrength = authenticatorStrengthToPropertyStrength(mStrength);
|
|
halControlsPreview = context.getResources().getBoolean(
|
|
R.bool.config_faceAuthSupportsSelfIllumination);
|
|
commonProps.maxEnrollmentsPerUser = context.getResources().getInteger(
|
|
R.integer.config_faceMaxTemplatesPerUser);
|
|
commonProps.componentInfo = null;
|
|
supportsDetectInteraction = false;
|
|
}
|
|
|
|
private byte authenticatorStrengthToPropertyStrength(
|
|
@BiometricManager.Authenticators.Types int strength) {
|
|
switch (strength) {
|
|
case BiometricManager.Authenticators.BIOMETRIC_CONVENIENCE:
|
|
return SensorStrength.CONVENIENCE;
|
|
case BiometricManager.Authenticators.BIOMETRIC_WEAK:
|
|
return SensorStrength.WEAK;
|
|
case BiometricManager.Authenticators.BIOMETRIC_STRONG:
|
|
return SensorStrength.STRONG;
|
|
default:
|
|
throw new IllegalArgumentException("Unknown strength: " + strength);
|
|
}
|
|
}
|
|
}
|