| /* |
| * Copyright (C) 2018 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.settings.biometrics.face; |
| |
| import static android.app.Activity.RESULT_OK; |
| |
| import static com.android.settings.biometrics.BiometricEnrollBase.CONFIRM_REQUEST; |
| import static com.android.settings.biometrics.BiometricEnrollBase.ENROLL_REQUEST; |
| import static com.android.settings.biometrics.BiometricEnrollBase.RESULT_FINISHED; |
| import static com.android.settings.biometrics.BiometricEnrollBase.RESULT_TIMEOUT; |
| |
| import android.app.settings.SettingsEnums; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.hardware.face.FaceManager; |
| import android.os.Bundle; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.util.Log; |
| |
| import androidx.preference.Preference; |
| |
| import com.android.settings.R; |
| import com.android.settings.SettingsActivity; |
| import com.android.settings.Utils; |
| import com.android.settings.dashboard.DashboardFragment; |
| import com.android.settings.overlay.FeatureFactory; |
| import com.android.settings.password.ChooseLockSettingsHelper; |
| import com.android.settings.search.BaseSearchIndexProvider; |
| import com.android.settingslib.core.AbstractPreferenceController; |
| import com.android.settingslib.core.lifecycle.Lifecycle; |
| import com.android.settingslib.search.SearchIndexable; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| /** |
| * Settings screen for face authentication. |
| */ |
| @SearchIndexable |
| public class FaceSettings extends DashboardFragment { |
| |
| private static final String TAG = "FaceSettings"; |
| private static final String KEY_TOKEN = "hw_auth_token"; |
| |
| private static final String PREF_KEY_DELETE_FACE_DATA = |
| "security_settings_face_delete_faces_container"; |
| private static final String PREF_KEY_ENROLL_FACE_UNLOCK = |
| "security_settings_face_enroll_faces_container"; |
| |
| private UserManager mUserManager; |
| private FaceManager mFaceManager; |
| private int mUserId; |
| private byte[] mToken; |
| private FaceSettingsAttentionPreferenceController mAttentionController; |
| private FaceSettingsRemoveButtonPreferenceController mRemoveController; |
| private FaceSettingsEnrollButtonPreferenceController mEnrollController; |
| private FaceSettingsLockscreenBypassPreferenceController mLockscreenController; |
| private List<AbstractPreferenceController> mControllers; |
| |
| private List<Preference> mTogglePreferences; |
| private Preference mRemoveButton; |
| private Preference mEnrollButton; |
| private FaceFeatureProvider mFaceFeatureProvider; |
| |
| private boolean mConfirmingPassword; |
| |
| private final FaceSettingsRemoveButtonPreferenceController.Listener mRemovalListener = () -> { |
| |
| // Disable the toggles until the user re-enrolls |
| for (Preference preference : mTogglePreferences) { |
| preference.setEnabled(false); |
| } |
| |
| // Hide the "remove" button and show the "set up face authentication" button. |
| mRemoveButton.setVisible(false); |
| mEnrollButton.setVisible(true); |
| }; |
| |
| private final FaceSettingsEnrollButtonPreferenceController.Listener mEnrollListener = intent -> |
| startActivityForResult(intent, ENROLL_REQUEST); |
| |
| public static boolean isAvailable(Context context) { |
| FaceManager manager = Utils.getFaceManagerOrNull(context); |
| return manager != null && manager.isHardwareDetected(); |
| } |
| |
| @Override |
| public int getMetricsCategory() { |
| return SettingsEnums.FACE; |
| } |
| |
| @Override |
| protected int getPreferenceScreenResId() { |
| return R.xml.security_settings_face; |
| } |
| |
| @Override |
| protected String getLogTag() { |
| return TAG; |
| } |
| |
| @Override |
| public void onSaveInstanceState(Bundle outState) { |
| super.onSaveInstanceState(outState); |
| outState.putByteArray(KEY_TOKEN, mToken); |
| } |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| final Context context = getPrefContext(); |
| if (!isAvailable(context)) { |
| Log.w(TAG, "no faceManager, finish this"); |
| finish(); |
| return; |
| } |
| |
| mUserManager = context.getSystemService(UserManager.class); |
| mFaceManager = context.getSystemService(FaceManager.class); |
| mToken = getIntent().getByteArrayExtra(KEY_TOKEN); |
| |
| mUserId = getActivity().getIntent().getIntExtra( |
| Intent.EXTRA_USER_ID, UserHandle.myUserId()); |
| mFaceFeatureProvider = FeatureFactory.getFactory(getContext()).getFaceFeatureProvider(); |
| |
| if (mUserManager.getUserInfo(mUserId).isManagedProfile()) { |
| getActivity().setTitle(getActivity().getResources().getString( |
| R.string.security_settings_face_profile_preference_title)); |
| } |
| |
| Preference keyguardPref = findPreference(FaceSettingsKeyguardPreferenceController.KEY); |
| Preference appPref = findPreference(FaceSettingsAppPreferenceController.KEY); |
| Preference attentionPref = findPreference(FaceSettingsAttentionPreferenceController.KEY); |
| Preference confirmPref = findPreference(FaceSettingsConfirmPreferenceController.KEY); |
| Preference bypassPref = |
| findPreference(mLockscreenController.getPreferenceKey()); |
| mTogglePreferences = new ArrayList<>( |
| Arrays.asList(keyguardPref, appPref, attentionPref, confirmPref, bypassPref)); |
| |
| mRemoveButton = findPreference(FaceSettingsRemoveButtonPreferenceController.KEY); |
| mEnrollButton = findPreference(FaceSettingsEnrollButtonPreferenceController.KEY); |
| |
| // There is no better way to do this :/ |
| for (AbstractPreferenceController controller : mControllers) { |
| if (controller instanceof FaceSettingsPreferenceController) { |
| ((FaceSettingsPreferenceController) controller).setUserId(mUserId); |
| } else if (controller instanceof FaceSettingsEnrollButtonPreferenceController) { |
| ((FaceSettingsEnrollButtonPreferenceController) controller).setUserId(mUserId); |
| } |
| } |
| mRemoveController.setUserId(mUserId); |
| |
| // Don't show keyguard controller for work profile settings. |
| if (mUserManager.isManagedProfile(mUserId)) { |
| removePreference(FaceSettingsKeyguardPreferenceController.KEY); |
| removePreference(mLockscreenController.getPreferenceKey()); |
| } |
| |
| if (savedInstanceState != null) { |
| mToken = savedInstanceState.getByteArray(KEY_TOKEN); |
| } |
| } |
| |
| @Override |
| public void onAttach(Context context) { |
| super.onAttach(context); |
| |
| mLockscreenController = use(FaceSettingsLockscreenBypassPreferenceController.class); |
| mLockscreenController.setUserId(mUserId); |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| |
| if (mToken == null && !mConfirmingPassword) { |
| // Generate challenge in onResume instead of onCreate, since FaceSettings can be |
| // created while Keyguard is showing, in which case the resetLockout revokeChallenge |
| // will invalidate the too-early created challenge here. |
| final long challenge = mFaceManager.generateChallenge(); |
| ChooseLockSettingsHelper helper = new ChooseLockSettingsHelper(getActivity(), this); |
| |
| mConfirmingPassword = true; |
| if (!helper.launchConfirmationActivity(CONFIRM_REQUEST, |
| getString(R.string.security_settings_face_preference_title), |
| null, null, challenge, mUserId, true /* foregroundOnly */)) { |
| Log.e(TAG, "Password not set"); |
| finish(); |
| } |
| } else { |
| mAttentionController.setToken(mToken); |
| mEnrollController.setToken(mToken); |
| } |
| |
| final boolean hasEnrolled = mFaceManager.hasEnrolledTemplates(mUserId); |
| mEnrollButton.setVisible(!hasEnrolled); |
| mRemoveButton.setVisible(hasEnrolled); |
| |
| if (!mFaceFeatureProvider.isAttentionSupported(getContext())) { |
| removePreference(FaceSettingsAttentionPreferenceController.KEY); |
| } |
| } |
| |
| @Override |
| public void onActivityResult(int requestCode, int resultCode, Intent data) { |
| super.onActivityResult(requestCode, resultCode, data); |
| if (requestCode == CONFIRM_REQUEST) { |
| mConfirmingPassword = false; |
| if (resultCode == RESULT_FINISHED || resultCode == RESULT_OK) { |
| mFaceManager.setActiveUser(mUserId); |
| // The pin/pattern/password was set. |
| if (data != null) { |
| mToken = data.getByteArrayExtra( |
| ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN); |
| if (mToken != null) { |
| mAttentionController.setToken(mToken); |
| mEnrollController.setToken(mToken); |
| } |
| } |
| } |
| } else if (requestCode == ENROLL_REQUEST) { |
| if (resultCode == RESULT_TIMEOUT) { |
| setResult(resultCode, data); |
| finish(); |
| } |
| } |
| |
| if (mToken == null) { |
| // Didn't get an authentication, finishing |
| finish(); |
| } |
| } |
| |
| @Override |
| public void onStop() { |
| super.onStop(); |
| |
| if (!mEnrollController.isClicked() && !getActivity().isChangingConfigurations() |
| && !mConfirmingPassword) { |
| // Revoke challenge and finish |
| if (mToken != null) { |
| final int result = mFaceManager.revokeChallenge(); |
| if (result < 0) { |
| Log.w(TAG, "revokeChallenge failed, result: " + result); |
| } |
| mToken = null; |
| } |
| finish(); |
| } |
| } |
| |
| @Override |
| public int getHelpResource() { |
| return R.string.help_url_face; |
| } |
| |
| @Override |
| protected List<AbstractPreferenceController> createPreferenceControllers(Context context) { |
| if (!isAvailable(context)) { |
| return null; |
| } |
| mControllers = buildPreferenceControllers(context, getSettingsLifecycle()); |
| // There's no great way of doing this right now :/ |
| for (AbstractPreferenceController controller : mControllers) { |
| if (controller instanceof FaceSettingsAttentionPreferenceController) { |
| mAttentionController = (FaceSettingsAttentionPreferenceController) controller; |
| } else if (controller instanceof FaceSettingsRemoveButtonPreferenceController) { |
| mRemoveController = (FaceSettingsRemoveButtonPreferenceController) controller; |
| mRemoveController.setListener(mRemovalListener); |
| mRemoveController.setActivity((SettingsActivity) getActivity()); |
| } else if (controller instanceof FaceSettingsEnrollButtonPreferenceController) { |
| mEnrollController = (FaceSettingsEnrollButtonPreferenceController) controller; |
| mEnrollController.setListener(mEnrollListener); |
| mEnrollController.setActivity((SettingsActivity) getActivity()); |
| } |
| } |
| |
| return mControllers; |
| } |
| |
| private static List<AbstractPreferenceController> buildPreferenceControllers(Context context, |
| Lifecycle lifecycle) { |
| final List<AbstractPreferenceController> controllers = new ArrayList<>(); |
| controllers.add(new FaceSettingsKeyguardPreferenceController(context)); |
| controllers.add(new FaceSettingsAppPreferenceController(context)); |
| controllers.add(new FaceSettingsAttentionPreferenceController(context)); |
| controllers.add(new FaceSettingsRemoveButtonPreferenceController(context)); |
| controllers.add(new FaceSettingsFooterPreferenceController(context)); |
| controllers.add(new FaceSettingsConfirmPreferenceController(context)); |
| controllers.add(new FaceSettingsEnrollButtonPreferenceController(context)); |
| return controllers; |
| } |
| |
| public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = |
| new BaseSearchIndexProvider(R.xml.security_settings_face) { |
| |
| @Override |
| public List<AbstractPreferenceController> createPreferenceControllers( |
| Context context) { |
| if (isAvailable(context)) { |
| return buildPreferenceControllers(context, null /* lifecycle */); |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| protected boolean isPageSearchEnabled(Context context) { |
| return isAvailable(context); |
| } |
| |
| @Override |
| public List<String> getNonIndexableKeys(Context context) { |
| final List<String> keys = super.getNonIndexableKeys(context); |
| if (isAvailable(context)) { |
| final FaceManager faceManager = context.getSystemService(FaceManager.class); |
| final boolean hasEnrolled = faceManager.hasEnrolledTemplates( |
| UserHandle.myUserId()); |
| keys.add(hasEnrolled ? PREF_KEY_ENROLL_FACE_UNLOCK |
| : PREF_KEY_DELETE_FACE_DATA); |
| } |
| |
| if (!isAttentionSupported(context)) { |
| keys.add(FaceSettingsAttentionPreferenceController.KEY); |
| } |
| |
| return keys; |
| } |
| |
| private boolean isAttentionSupported(Context context) { |
| FaceFeatureProvider featureProvider = FeatureFactory.getFactory( |
| context).getFaceFeatureProvider(); |
| boolean isAttentionSupported = false; |
| if (featureProvider != null) { |
| isAttentionSupported = featureProvider.isAttentionSupported(context); |
| } |
| return isAttentionSupported; |
| } |
| }; |
| } |