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 26 import com.android.settings.Utils; 27 import com.android.settingslib.RestrictedLockUtils; 28 import com.android.settingslib.RestrictedLockUtilsInternal; 29 30 public class UserCapabilities { 31 boolean mEnabled = true; 32 boolean mCanAddUser = true; 33 boolean mCanAddRestrictedProfile = true; 34 boolean mIsAdmin; 35 boolean mIsGuest; 36 boolean mUserSwitcherEnabled; 37 boolean mCanAddGuest; 38 boolean mDisallowAddUser; 39 boolean mDisallowAddUserSetByAdmin; 40 boolean mDisallowSwitchUser; 41 RestrictedLockUtils.EnforcedAdmin mEnforcedAdmin; 42 UserCapabilities()43 private UserCapabilities() { 44 } 45 create(Context context)46 public static UserCapabilities create(Context context) { 47 UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 48 UserCapabilities caps = new UserCapabilities(); 49 50 if (!UserManager.supportsMultipleUsers() || Utils.isMonkeyRunning()) { 51 caps.mEnabled = false; 52 return caps; 53 } 54 55 final UserInfo myUserInfo = userManager.getUserInfo(UserHandle.myUserId()); 56 caps.mIsGuest = myUserInfo.isGuest(); 57 caps.mIsAdmin = myUserInfo.isAdmin(); 58 DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 59 Context.DEVICE_POLICY_SERVICE); 60 // No restricted profiles for tablets with a device owner, or phones. 61 if (dpm.isDeviceManaged() || Utils.isVoiceCapable(context)) { 62 caps.mCanAddRestrictedProfile = false; 63 } 64 caps.updateAddUserCapabilities(context); 65 return caps; 66 } 67 updateAddUserCapabilities(Context context)68 public void updateAddUserCapabilities(Context context) { 69 final UserManager userManager = 70 (UserManager) context.getSystemService(Context.USER_SERVICE); 71 mEnforcedAdmin = RestrictedLockUtilsInternal.checkIfRestrictionEnforced(context, 72 UserManager.DISALLOW_ADD_USER, UserHandle.myUserId()); 73 final boolean hasBaseUserRestriction = RestrictedLockUtilsInternal.hasBaseUserRestriction( 74 context, UserManager.DISALLOW_ADD_USER, UserHandle.myUserId()); 75 mDisallowAddUserSetByAdmin = mEnforcedAdmin != null && !hasBaseUserRestriction; 76 mDisallowAddUser = (mEnforcedAdmin != null || hasBaseUserRestriction); 77 mUserSwitcherEnabled = userManager.isUserSwitcherEnabled(); 78 mCanAddUser = true; 79 if (!mIsAdmin || UserManager.getMaxSupportedUsers() < 2 80 || !UserManager.supportsMultipleUsers() 81 || mDisallowAddUser) { 82 mCanAddUser = false; 83 } 84 85 final boolean canAddUsersWhenLocked = mIsAdmin || Settings.Global.getInt( 86 context.getContentResolver(), Settings.Global.ADD_USERS_WHEN_LOCKED, 0) == 1; 87 mCanAddGuest = !mIsGuest && !mDisallowAddUser && canAddUsersWhenLocked; 88 89 mDisallowSwitchUser = userManager.hasUserRestriction(UserManager.DISALLOW_USER_SWITCH); 90 } 91 isAdmin()92 public boolean isAdmin() { 93 return mIsAdmin; 94 } 95 disallowAddUser()96 public boolean disallowAddUser() { 97 return mDisallowAddUser; 98 } 99 disallowAddUserSetByAdmin()100 public boolean disallowAddUserSetByAdmin() { 101 return mDisallowAddUserSetByAdmin; 102 } 103 getEnforcedAdmin()104 public RestrictedLockUtils.EnforcedAdmin getEnforcedAdmin() { 105 return mEnforcedAdmin; 106 } 107 108 109 @Override toString()110 public String toString() { 111 return "UserCapabilities{" + 112 "mEnabled=" + mEnabled + 113 ", mCanAddUser=" + mCanAddUser + 114 ", mCanAddRestrictedProfile=" + mCanAddRestrictedProfile + 115 ", mIsAdmin=" + mIsAdmin + 116 ", mIsGuest=" + mIsGuest + 117 ", mCanAddGuest=" + mCanAddGuest + 118 ", mDisallowAddUser=" + mDisallowAddUser + 119 ", mEnforcedAdmin=" + mEnforcedAdmin + 120 ", mDisallowSwitchUser=" + mDisallowSwitchUser + 121 ", mDisallowAddUserSetByAdmin=" + mDisallowAddUserSetByAdmin + 122 ", mUserSwitcherEnabled=" + mUserSwitcherEnabled + 123 '}'; 124 } 125 } 126