107 lines
4.3 KiB
Java
107 lines
4.3 KiB
Java
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.service.remotelockscreenvalidation;
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import static com.android.internal.util.function.pooled.PooledLambda.obtainMessage;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.annotation.SdkConstant;
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import android.annotation.SystemApi;
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import android.app.RemoteLockscreenValidationResult;
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import android.app.Service;
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import android.content.Intent;
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import android.os.Handler;
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import android.os.IBinder;
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import android.os.Looper;
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import android.os.OutcomeReceiver;
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import android.os.RemoteException;
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import android.util.Log;
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/**
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* Provides an interface to validate a remote device's lockscreen
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* @hide
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*/
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@SystemApi
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public abstract class RemoteLockscreenValidationService extends Service {
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/**
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* The {@link Intent} that must be declared as handled by the service. To be supported, the
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* service must also require the
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* {@link android.Manifest.permission#BIND_REMOTE_LOCKSCREEN_VALIDATION_SERVICE}
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* permission so that other applications can not abuse it.
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*/
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@SdkConstant(SdkConstant.SdkConstantType.SERVICE_ACTION)
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public static final String SERVICE_INTERFACE =
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"android.service.remotelockscreenvalidation.RemoteLockscreenValidationService";
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private static final String TAG = RemoteLockscreenValidationService.class.getSimpleName();
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private final Handler mHandler = new Handler(Looper.getMainLooper());
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private final IRemoteLockscreenValidationService mInterface =
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new IRemoteLockscreenValidationService.Stub() {
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@Override
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public void validateLockscreenGuess(
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byte[] guess, IRemoteLockscreenValidationCallback callback) {
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mHandler.sendMessage(obtainMessage(
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RemoteLockscreenValidationService::onValidateLockscreenGuess,
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RemoteLockscreenValidationService.this, guess,
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new OutcomeReceiver<RemoteLockscreenValidationResult,
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Exception>() {
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@Override
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public void onResult(RemoteLockscreenValidationResult result) {
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try {
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callback.onSuccess(result);
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} catch (RemoteException e) {
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e.rethrowFromSystemServer();
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}
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}
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@Override
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public void onError(Exception e) {
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try {
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callback.onFailure(e.getMessage());
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} catch (RemoteException ex) {
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ex.rethrowFromSystemServer();
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}
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}
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}
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));
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}
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};
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@Override
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@Nullable
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public final IBinder onBind(@NonNull Intent intent) {
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if (!SERVICE_INTERFACE.equals(intent.getAction())) {
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Log.w(TAG, "Wrong action");
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return null;
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}
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return mInterface.asBinder();
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}
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/**
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* Validates the lockscreen guess.
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*
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* <p>Implementation should send guess to remote device and perform lockscreen validation
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* using {@link android.app.KeyguardManager#validateRemoteLockScreen}.
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*
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* @param guess lockscreen guess
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* @param callback object used to relay the response of the guess validation
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*/
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public abstract void onValidateLockscreenGuess(@NonNull byte[] guess,
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@NonNull OutcomeReceiver<RemoteLockscreenValidationResult, Exception> callback);
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}
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