1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.users; 18 19 import android.app.admin.DevicePolicyManager; 20 import android.content.Context; 21 import android.content.pm.UserInfo; 22 import android.os.UserHandle; 23 import android.os.UserManager; 24 import android.provider.Settings; 25 import com.android.settings.Utils; 26 import com.android.settingslib.RestrictedLockUtils; 27 28 public class UserCapabilities { 29 boolean mEnabled = true; 30 boolean mCanAddUser = true; 31 boolean mCanAddRestrictedProfile = true; 32 boolean mIsAdmin; 33 boolean mIsGuest; 34 boolean mCanAddGuest; 35 boolean mDisallowAddUser; 36 boolean mDisallowAddUserSetByAdmin; 37 RestrictedLockUtils.EnforcedAdmin mEnforcedAdmin; 38 UserCapabilities()39 private UserCapabilities() {} 40 create(Context context)41 public static UserCapabilities create(Context context) { 42 UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 43 UserCapabilities caps = new UserCapabilities(); 44 if (!UserManager.supportsMultipleUsers() || Utils.isMonkeyRunning()) { 45 caps.mEnabled = false; 46 return caps; 47 } 48 49 final UserInfo myUserInfo = userManager.getUserInfo(UserHandle.myUserId()); 50 caps.mIsGuest = myUserInfo.isGuest(); 51 caps.mIsAdmin = myUserInfo.isAdmin(); 52 DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 53 Context.DEVICE_POLICY_SERVICE); 54 // No restricted profiles for tablets with a device owner, or phones. 55 if (dpm.isDeviceManaged() || Utils.isVoiceCapable(context)) { 56 caps.mCanAddRestrictedProfile = false; 57 } 58 caps.updateAddUserCapabilities(context); 59 return caps; 60 } 61 updateAddUserCapabilities(Context context)62 public void updateAddUserCapabilities(Context context) { 63 mEnforcedAdmin = RestrictedLockUtils.checkIfRestrictionEnforced(context, 64 UserManager.DISALLOW_ADD_USER, UserHandle.myUserId()); 65 final boolean hasBaseUserRestriction = RestrictedLockUtils.hasBaseUserRestriction( 66 context, UserManager.DISALLOW_ADD_USER, UserHandle.myUserId()); 67 mDisallowAddUserSetByAdmin = 68 mEnforcedAdmin != null && !hasBaseUserRestriction; 69 mDisallowAddUser = 70 (mEnforcedAdmin != null || hasBaseUserRestriction); 71 mCanAddUser = true; 72 if (!mIsAdmin || UserManager.getMaxSupportedUsers() < 2 73 || !UserManager.supportsMultipleUsers() 74 || mDisallowAddUser) { 75 mCanAddUser = false; 76 } 77 78 final boolean canAddUsersWhenLocked = mIsAdmin || Settings.Global.getInt( 79 context.getContentResolver(), Settings.Global.ADD_USERS_WHEN_LOCKED, 0) == 1; 80 mCanAddGuest = !mIsGuest && !mDisallowAddUser && canAddUsersWhenLocked; 81 } 82 isAdmin()83 public boolean isAdmin() { 84 return mIsAdmin; 85 } 86 disallowAddUser()87 public boolean disallowAddUser() { 88 return mDisallowAddUser; 89 } 90 disallowAddUserSetByAdmin()91 public boolean disallowAddUserSetByAdmin() { 92 return mDisallowAddUserSetByAdmin; 93 } 94 getEnforcedAdmin()95 public RestrictedLockUtils.EnforcedAdmin getEnforcedAdmin() { 96 return mEnforcedAdmin; 97 } 98 99 100 @Override toString()101 public String toString() { 102 return "UserCapabilities{" + 103 "mEnabled=" + mEnabled + 104 ", mCanAddUser=" + mCanAddUser + 105 ", mCanAddRestrictedProfile=" + mCanAddRestrictedProfile + 106 ", mIsAdmin=" + mIsAdmin + 107 ", mIsGuest=" + mIsGuest + 108 ", mCanAddGuest=" + mCanAddGuest + 109 ", mDisallowAddUser=" + mDisallowAddUser + 110 ", mEnforcedAdmin=" + mEnforcedAdmin + 111 '}'; 112 } 113 } 114