| /* |
| * Copyright 2019 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.car.settings.applications.specialaccess; |
| |
| import android.Manifest; |
| import android.app.NotificationManager; |
| import android.car.drivingstate.CarUxRestrictions; |
| import android.car.userlib.CarUserManagerHelper; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.pm.PackageItemInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ServiceInfo; |
| import android.os.AsyncTask; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.service.notification.NotificationListenerService; |
| import android.util.IconDrawableFactory; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.PreferenceGroup; |
| import androidx.preference.SwitchPreference; |
| |
| import com.android.car.settings.R; |
| import com.android.car.settings.common.ConfirmationDialogFragment; |
| import com.android.car.settings.common.FragmentController; |
| import com.android.car.settings.common.Logger; |
| import com.android.car.settings.common.PreferenceController; |
| import com.android.settingslib.applications.ServiceListing; |
| |
| import java.util.List; |
| |
| /** |
| * Displays a list of notification listener services and provides toggles to allow the user to |
| * grant/revoke permission for listening to notifications. Before changing the value of a |
| * permission, the user is shown a confirmation dialog with information about the risks and |
| * potential effects. |
| */ |
| public class NotificationAccessPreferenceController extends PreferenceController<PreferenceGroup> { |
| |
| private static final Logger LOG = new Logger(NotificationAccessPreferenceController.class); |
| |
| @VisibleForTesting |
| static final String GRANT_CONFIRM_DIALOG_TAG = |
| "com.android.car.settings.applications.specialaccess.GrantNotificationAccessDialog"; |
| @VisibleForTesting |
| static final String REVOKE_CONFIRM_DIALOG_TAG = |
| "com.android.car.settings.applications.specialaccess.RevokeNotificationAccessDialog"; |
| private static final String KEY_SERVICE = "service"; |
| |
| private final NotificationManager mNm; |
| private final ServiceListing mServiceListing; |
| private final IconDrawableFactory mIconDrawableFactory; |
| private final CarUserManagerHelper mCarUserManagerHelper; |
| |
| private final ServiceListing.Callback mCallback = this::onServicesReloaded; |
| |
| private final ConfirmationDialogFragment.ConfirmListener mGrantConfirmListener = arguments -> { |
| ComponentName service = arguments.getParcelable(KEY_SERVICE); |
| grantNotificationAccess(service); |
| }; |
| private final ConfirmationDialogFragment.ConfirmListener mRevokeConfirmListener = |
| arguments -> { |
| ComponentName service = arguments.getParcelable(KEY_SERVICE); |
| revokeNotificationAccess(service); |
| }; |
| |
| public NotificationAccessPreferenceController(Context context, String preferenceKey, |
| FragmentController fragmentController, CarUxRestrictions uxRestrictions) { |
| super(context, preferenceKey, fragmentController, uxRestrictions); |
| mNm = context.getSystemService(NotificationManager.class); |
| mServiceListing = new ServiceListing.Builder(context) |
| .setPermission(Manifest.permission.BIND_NOTIFICATION_LISTENER_SERVICE) |
| .setIntentAction(NotificationListenerService.SERVICE_INTERFACE) |
| .setSetting(Settings.Secure.ENABLED_NOTIFICATION_LISTENERS) |
| .setTag(NotificationAccessPreferenceController.class.getSimpleName()) |
| .setNoun("notification listener") // For logging. |
| .build(); |
| mIconDrawableFactory = IconDrawableFactory.newInstance(context); |
| mCarUserManagerHelper = new CarUserManagerHelper(context); |
| } |
| |
| @Override |
| protected Class<PreferenceGroup> getPreferenceType() { |
| return PreferenceGroup.class; |
| } |
| |
| @Override |
| protected void onCreateInternal() { |
| ConfirmationDialogFragment grantConfirmDialogFragment = |
| (ConfirmationDialogFragment) getFragmentController().findDialogByTag( |
| GRANT_CONFIRM_DIALOG_TAG); |
| ConfirmationDialogFragment.resetListeners(grantConfirmDialogFragment, |
| mGrantConfirmListener, /* rejectListener= */ null); |
| |
| ConfirmationDialogFragment revokeConfirmDialogFragment = |
| (ConfirmationDialogFragment) getFragmentController().findDialogByTag( |
| REVOKE_CONFIRM_DIALOG_TAG); |
| ConfirmationDialogFragment.resetListeners(revokeConfirmDialogFragment, |
| mRevokeConfirmListener, /* rejectListener= */ null); |
| |
| mServiceListing.addCallback(mCallback); |
| } |
| |
| @Override |
| protected void onStartInternal() { |
| mServiceListing.reload(); |
| mServiceListing.setListening(true); |
| } |
| |
| @Override |
| protected void onStopInternal() { |
| mServiceListing.setListening(false); |
| } |
| |
| @Override |
| protected void onDestroyInternal() { |
| mServiceListing.removeCallback(mCallback); |
| } |
| |
| private void onServicesReloaded(List<ServiceInfo> services) { |
| PackageManager packageManager = getContext().getPackageManager(); |
| services.sort(new PackageItemInfo.DisplayNameComparator(packageManager)); |
| getPreference().removeAll(); |
| for (ServiceInfo service : services) { |
| ComponentName cn = new ComponentName(service.packageName, service.name); |
| CharSequence title = null; |
| try { |
| title = packageManager.getApplicationInfoAsUser(service.packageName, /* flags= */ 0, |
| mCarUserManagerHelper.getCurrentProcessUserId()).loadLabel(packageManager); |
| } catch (PackageManager.NameNotFoundException e) { |
| LOG.e("can't find package name", e); |
| } |
| String summary = service.loadLabel(packageManager).toString(); |
| SwitchPreference pref = new SwitchPreference(getContext()); |
| pref.setPersistent(false); |
| pref.setIcon(mIconDrawableFactory.getBadgedIcon(service, service.applicationInfo, |
| UserHandle.getUserId(service.applicationInfo.uid))); |
| if (title != null && !title.equals(summary)) { |
| pref.setTitle(title); |
| pref.setSummary(summary); |
| } else { |
| pref.setTitle(summary); |
| } |
| pref.setKey(cn.flattenToString()); |
| pref.setChecked(isAccessGranted(cn)); |
| pref.setOnPreferenceChangeListener((preference, newValue) -> { |
| boolean enable = (boolean) newValue; |
| return promptUserToConfirmChange(cn, summary, enable); |
| }); |
| getPreference().addPreference(pref); |
| } |
| } |
| |
| private boolean isAccessGranted(ComponentName service) { |
| return mNm.isNotificationListenerAccessGranted(service); |
| } |
| |
| private void grantNotificationAccess(ComponentName service) { |
| mNm.setNotificationListenerAccessGranted(service, /* granted= */ true); |
| } |
| |
| private void revokeNotificationAccess(ComponentName service) { |
| mNm.setNotificationListenerAccessGranted(service, /* granted= */ false); |
| AsyncTask.execute(() -> { |
| if (!mNm.isNotificationPolicyAccessGrantedForPackage(service.getPackageName())) { |
| mNm.removeAutomaticZenRules(service.getPackageName()); |
| } |
| }); |
| } |
| |
| private boolean promptUserToConfirmChange(ComponentName service, String label, |
| boolean grantAccess) { |
| if (isAccessGranted(service) == grantAccess) { |
| return true; |
| } |
| ConfirmationDialogFragment.Builder dialogFragment = |
| grantAccess ? createConfirmGrantDialogFragment(label) |
| : createConfirmRevokeDialogFragment(label); |
| dialogFragment.addArgumentParcelable(KEY_SERVICE, service); |
| getFragmentController().showDialog(dialogFragment.build(), |
| grantAccess ? GRANT_CONFIRM_DIALOG_TAG : REVOKE_CONFIRM_DIALOG_TAG); |
| return false; |
| } |
| |
| private ConfirmationDialogFragment.Builder createConfirmGrantDialogFragment(String label) { |
| String title = getContext().getResources().getString( |
| R.string.notification_listener_security_warning_title, label); |
| String summary = getContext().getResources().getString( |
| R.string.notification_listener_security_warning_summary, label); |
| return new ConfirmationDialogFragment.Builder(getContext()) |
| .setTitle(title) |
| .setMessage(summary) |
| .setPositiveButton(R.string.allow, mGrantConfirmListener) |
| .setNegativeButton(R.string.deny, /* rejectionListener= */ null); |
| } |
| |
| private ConfirmationDialogFragment.Builder createConfirmRevokeDialogFragment(String label) { |
| String summary = getContext().getResources().getString( |
| R.string.notification_listener_revoke_warning_summary, label); |
| return new ConfirmationDialogFragment.Builder(getContext()) |
| .setMessage(summary) |
| .setPositiveButton(R.string.notification_listener_revoke_warning_confirm, |
| mRevokeConfirmListener) |
| .setNegativeButton(R.string.notification_listener_revoke_warning_cancel, |
| /* rejectionListener= */ null); |
| } |
| } |