/*
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* Copyright (C) 2018 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 com.android.settings.backup;
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import android.app.backup.IBackupManager;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.os.RemoteException;
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import android.os.ServiceManager;
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import android.os.UserHandle;
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import android.os.UserManager;
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import android.util.Log;
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import java.util.List;
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import java.util.Set;
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import java.util.TreeSet;
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public class PrivacySettingsUtils {
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private static final String TAG = "PrivacySettingsUtils";
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private static final String GSETTINGS_PROVIDER = "com.google.settings";
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static final String BACKUP_DATA = "backup_data";
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static final String AUTO_RESTORE = "auto_restore";
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static final String CONFIGURE_ACCOUNT = "configure_account";
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static final String BACKUP_INACTIVE = "backup_inactive";
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// Don't allow any access if this is not an admin user.
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// TODO: backup/restore currently only works with owner user b/22760572
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static boolean isAdminUser(final Context context) {
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return UserManager.get(context).isAdminUser();
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}
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/**
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* Send a {@param key} to check its preference will display in PrivacySettings or not.
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*/
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static boolean isInvisibleKey(final Context context, final String key) {
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final Set<String> keysToRemove = getInvisibleKey(context);
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if (Log.isLoggable(TAG, Log.DEBUG)) {
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Log.d(TAG,
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"keysToRemove size=" + keysToRemove.size() + " keysToRemove=" + keysToRemove);
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}
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if (keysToRemove.contains(key)) {
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return true;
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}
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return false;
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}
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private static Set<String> getInvisibleKey(final Context context) {
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final IBackupManager backupManager = IBackupManager.Stub.asInterface(
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ServiceManager.getService(Context.BACKUP_SERVICE));
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boolean isServiceActive = false;
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try {
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isServiceActive = backupManager.isBackupServiceActive(UserHandle.myUserId());
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} catch (RemoteException e) {
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Log.w(TAG, "Failed querying backup manager service activity status. " +
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"Assuming it is inactive.");
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}
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boolean vendorSpecific = context.getPackageManager().
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resolveContentProvider(GSETTINGS_PROVIDER, 0) == null;
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final Set<String> inVisibleKeys = new TreeSet<>();
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if (vendorSpecific || isServiceActive) {
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inVisibleKeys.add(BACKUP_INACTIVE);
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}
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if (vendorSpecific || !isServiceActive) {
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inVisibleKeys.add(BACKUP_DATA);
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inVisibleKeys.add(AUTO_RESTORE);
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inVisibleKeys.add(CONFIGURE_ACCOUNT);
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}
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return inVisibleKeys;
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}
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public static void updatePrivacyBuffer(final Context context, PrivacySettingsConfigData data) {
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final IBackupManager backupManager = IBackupManager.Stub.asInterface(
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ServiceManager.getService(Context.BACKUP_SERVICE));
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try {
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data.setBackupEnabled(backupManager.isBackupEnabled());
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String transport = backupManager.getCurrentTransport();
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data.setConfigIntent(validatedActivityIntent(context,
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backupManager.getConfigurationIntent(transport), "config"));
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data.setConfigSummary(backupManager.getDestinationString(transport));
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data.setManageIntent(validatedActivityIntent(context,
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backupManager.getDataManagementIntent(transport), "management"));
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data.setManageLabel(
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backupManager.getDataManagementLabelForUser(UserHandle.myUserId(), transport));
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data.setBackupGray(false);
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} catch (RemoteException e) {
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// leave it 'false' and disable the UI; there's no backup manager
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// mBackup.setEnabled(false);
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data.setBackupGray(true);
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}
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}
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private static Intent validatedActivityIntent(final Context context, Intent intent,
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String logLabel) {
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if (intent != null) {
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PackageManager pm = context.getPackageManager();
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List<ResolveInfo> resolved = pm.queryIntentActivities(intent, 0);
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if (resolved == null || resolved.isEmpty()) {
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intent = null;
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Log.e(TAG, "Backup " + logLabel + " intent " + intent
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+ " fails to resolve; ignoring");
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}
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}
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return intent;
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}
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}
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