| /* |
| * Copyright (C) 2020 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.car.userlib; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.UserIdInt; |
| import android.content.Context; |
| import android.content.pm.UserInfo; |
| import android.graphics.Bitmap; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| |
| import com.android.internal.util.Preconditions; |
| import com.android.internal.util.UserIcons; |
| |
| import com.google.android.collect.Sets; |
| |
| import java.util.Set; |
| |
| /** |
| * Provides utility methods for generic user-related functionalities that don't require a manager. |
| */ |
| public final class UserHelper { |
| |
| /** |
| * Default set of restrictions for Non-Admin users. |
| */ |
| private static final Set<String> DEFAULT_NON_ADMIN_RESTRICTIONS = Sets.newArraySet( |
| UserManager.DISALLOW_FACTORY_RESET |
| ); |
| |
| private UserHelper() { |
| throw new UnsupportedOperationException("contains only static methods"); |
| } |
| |
| /** |
| * Gets a PII-safe representation of the name. |
| */ |
| @Nullable |
| public static String safeName(@Nullable String name) { |
| return name == null ? name : name.length() + "_chars"; |
| } |
| |
| /** |
| * Checks whether the given user is both {@code SYSTEM} and headless. |
| */ |
| public static boolean isHeadlessSystemUser(@UserIdInt int userId) { |
| return userId == UserHandle.USER_SYSTEM && UserManager.isHeadlessSystemUserMode(); |
| } |
| |
| /** |
| * Sets the values of default Non-Admin restrictions to the passed in value. |
| * |
| * @param context Current application context |
| * @param user User to set restrictions on. |
| * @param enable If true, restriction is ON, If false, restriction is OFF. |
| */ |
| public static void setDefaultNonAdminRestrictions(@NonNull Context context, |
| @NonNull UserInfo user, boolean enable) { |
| Preconditions.checkArgument(context != null, "Context cannot be null"); |
| Preconditions.checkArgument(user != null, "User cannot be null"); |
| |
| UserManager userManager = UserManager.get(context); |
| for (String restriction : DEFAULT_NON_ADMIN_RESTRICTIONS) { |
| userManager.setUserRestriction(restriction, enable, user.getUserHandle()); |
| } |
| } |
| |
| /** |
| * Assigns a default icon to a user according to the user's id. |
| * |
| * @param context Current application context |
| * @param user User whose avatar is set to default icon. |
| * @return Bitmap of the user icon. |
| */ |
| @NonNull |
| public static Bitmap assignDefaultIcon(@NonNull Context context, @NonNull UserInfo user) { |
| Preconditions.checkArgument(context != null, "Context cannot be null"); |
| Preconditions.checkArgument(user != null, "User cannot be null"); |
| |
| int idForIcon = user.isGuest() ? UserHandle.USER_NULL : user.id; |
| Bitmap bitmap = UserIcons.convertToBitmap( |
| UserIcons.getDefaultUserIcon(context.getResources(), idForIcon, false)); |
| UserManager.get(context).setUserIcon(user.id, bitmap); |
| return bitmap; |
| } |
| } |