| /* |
| * 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 com.android.server.location.injector; |
| |
| import static android.os.UserManager.DISALLOW_SHARE_LOCATION; |
| |
| import android.annotation.Nullable; |
| import android.annotation.UserIdInt; |
| import android.app.ActivityManager; |
| import android.app.ActivityManagerInternal; |
| import android.app.IActivityManager; |
| import android.content.Context; |
| import android.os.Binder; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.util.IndentingPrintWriter; |
| |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.util.Preconditions; |
| import com.android.server.LocalServices; |
| |
| import java.io.FileDescriptor; |
| import java.util.Arrays; |
| |
| /** |
| * Provides accessors and listeners for all user info. |
| */ |
| public class SystemUserInfoHelper extends UserInfoHelper { |
| |
| private final Context mContext; |
| |
| @GuardedBy("this") |
| @Nullable private ActivityManagerInternal mActivityManagerInternal; |
| @GuardedBy("this") |
| @Nullable private IActivityManager mActivityManager; |
| @GuardedBy("this") |
| @Nullable private UserManager mUserManager; |
| |
| public SystemUserInfoHelper(Context context) { |
| mContext = context; |
| } |
| |
| @Nullable |
| protected final ActivityManagerInternal getActivityManagerInternal() { |
| synchronized (this) { |
| if (mActivityManagerInternal == null) { |
| mActivityManagerInternal = LocalServices.getService(ActivityManagerInternal.class); |
| } |
| } |
| |
| return mActivityManagerInternal; |
| } |
| |
| @Nullable |
| protected final IActivityManager getActivityManager() { |
| synchronized (this) { |
| if (mActivityManager == null) { |
| mActivityManager = ActivityManager.getService(); |
| } |
| } |
| |
| return mActivityManager; |
| } |
| |
| @Nullable |
| protected final UserManager getUserManager() { |
| synchronized (this) { |
| if (mUserManager == null) { |
| mUserManager = mContext.getSystemService(UserManager.class); |
| } |
| } |
| |
| return mUserManager; |
| } |
| |
| @Override |
| public int[] getRunningUserIds() { |
| IActivityManager activityManager = getActivityManager(); |
| if (activityManager != null) { |
| final long identity = Binder.clearCallingIdentity(); |
| try { |
| return activityManager.getRunningUserIds(); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| } else { |
| return new int[]{}; |
| } |
| } |
| |
| @Override |
| public boolean isCurrentUserId(@UserIdInt int userId) { |
| ActivityManagerInternal activityManagerInternal = getActivityManagerInternal(); |
| if (activityManagerInternal != null) { |
| final long identity = Binder.clearCallingIdentity(); |
| try { |
| return activityManagerInternal.isCurrentProfile(userId); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public @UserIdInt int getCurrentUserId() { |
| ActivityManagerInternal activityManagerInternal = getActivityManagerInternal(); |
| if (activityManagerInternal != null) { |
| final long identity = Binder.clearCallingIdentity(); |
| try { |
| return activityManagerInternal.getCurrentUserId(); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| } else { |
| return UserHandle.USER_NULL; |
| } |
| } |
| |
| @Override |
| protected int[] getProfileIds(@UserIdInt int userId) { |
| UserManager userManager = getUserManager(); |
| |
| // if you're hitting this precondition then you are invoking this before the system is ready |
| Preconditions.checkState(userManager != null); |
| |
| final long identity = Binder.clearCallingIdentity(); |
| try { |
| return userManager.getEnabledProfileIds(userId); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| } |
| |
| /** |
| * Dump info for debugging. |
| */ |
| @Override |
| public void dump(FileDescriptor fd, IndentingPrintWriter pw, String[] args) { |
| int[] runningUserIds = getRunningUserIds(); |
| if (runningUserIds.length > 1) { |
| pw.println("running users: u" + Arrays.toString(runningUserIds)); |
| } |
| |
| ActivityManagerInternal activityManagerInternal = getActivityManagerInternal(); |
| if (activityManagerInternal == null) { |
| return; |
| } |
| |
| int[] currentProfileIds = activityManagerInternal.getCurrentProfileIds(); |
| pw.println("current users: u" + Arrays.toString(currentProfileIds)); |
| |
| UserManager userManager = getUserManager(); |
| if (userManager != null) { |
| for (int userId : currentProfileIds) { |
| if (userManager.hasUserRestrictionForUser(DISALLOW_SHARE_LOCATION, |
| UserHandle.of(userId))) { |
| pw.increaseIndent(); |
| pw.println("u" + userId + " restricted"); |
| pw.decreaseIndent(); |
| } |
| } |
| } |
| } |
| } |