Adrian Roos | 5005244 | 2014-07-17 23:35:18 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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.systemui; |
| 18 | |
Sudheer Shanka | dc589ac | 2016-11-10 15:30:17 -0800 | [diff] [blame] | 19 | import android.app.ActivityManager; |
Adrian Roos | 5005244 | 2014-07-17 23:35:18 +0200 | [diff] [blame] | 20 | import android.app.Dialog; |
| 21 | import android.content.BroadcastReceiver; |
| 22 | import android.content.ContentResolver; |
| 23 | import android.content.Context; |
| 24 | import android.content.DialogInterface; |
| 25 | import android.content.Intent; |
| 26 | import android.content.IntentFilter; |
| 27 | import android.content.pm.UserInfo; |
| 28 | import android.os.RemoteException; |
| 29 | import android.os.UserHandle; |
| 30 | import android.os.UserManager; |
| 31 | import android.provider.Settings; |
| 32 | import android.util.Log; |
| 33 | import android.view.WindowManagerGlobal; |
| 34 | |
Winson | c0d7058 | 2016-01-29 10:24:39 -0800 | [diff] [blame] | 35 | import com.android.systemui.statusbar.phone.SystemUIDialog; |
| 36 | |
Adrian Roos | 5005244 | 2014-07-17 23:35:18 +0200 | [diff] [blame] | 37 | /** |
| 38 | * Manages notification when a guest session is resumed. |
| 39 | */ |
| 40 | public class GuestResumeSessionReceiver extends BroadcastReceiver { |
| 41 | |
| 42 | private static final String TAG = "GuestResumeSessionReceiver"; |
| 43 | |
| 44 | private static final String SETTING_GUEST_HAS_LOGGED_IN = "systemui.guest_has_logged_in"; |
| 45 | |
| 46 | private Dialog mNewSessionDialog; |
| 47 | |
| 48 | public void register(Context context) { |
| 49 | IntentFilter f = new IntentFilter(Intent.ACTION_USER_SWITCHED); |
Xiaohui Chen | 87d0e25 | 2015-07-30 15:38:16 -0700 | [diff] [blame] | 50 | context.registerReceiverAsUser(this, UserHandle.SYSTEM, |
Adrian Roos | 5005244 | 2014-07-17 23:35:18 +0200 | [diff] [blame] | 51 | f, null /* permission */, null /* scheduler */); |
| 52 | } |
| 53 | |
| 54 | @Override |
| 55 | public void onReceive(Context context, Intent intent) { |
| 56 | String action = intent.getAction(); |
| 57 | |
| 58 | if (Intent.ACTION_USER_SWITCHED.equals(action)) { |
| 59 | cancelDialog(); |
| 60 | |
| 61 | int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); |
| 62 | if (userId == UserHandle.USER_NULL) { |
| 63 | Log.e(TAG, intent + " sent to " + TAG + " without EXTRA_USER_HANDLE"); |
| 64 | return; |
| 65 | } |
| 66 | |
| 67 | UserInfo currentUser; |
| 68 | try { |
Sudheer Shanka | dc589ac | 2016-11-10 15:30:17 -0800 | [diff] [blame] | 69 | currentUser = ActivityManager.getService().getCurrentUser(); |
Adrian Roos | 5005244 | 2014-07-17 23:35:18 +0200 | [diff] [blame] | 70 | } catch (RemoteException e) { |
| 71 | return; |
| 72 | } |
| 73 | if (!currentUser.isGuest()) { |
| 74 | return; |
| 75 | } |
| 76 | |
| 77 | ContentResolver cr = context.getContentResolver(); |
| 78 | int notFirstLogin = Settings.System.getIntForUser( |
| 79 | cr, SETTING_GUEST_HAS_LOGGED_IN, 0, userId); |
| 80 | if (notFirstLogin != 0) { |
| 81 | mNewSessionDialog = new ResetSessionDialog(context, userId); |
| 82 | mNewSessionDialog.show(); |
| 83 | } else { |
| 84 | Settings.System.putIntForUser( |
| 85 | cr, SETTING_GUEST_HAS_LOGGED_IN, 1, userId); |
| 86 | } |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Wipes the guest session. |
| 92 | * |
| 93 | * The guest must be the current user and its id must be {@param userId}. |
| 94 | */ |
| 95 | private static void wipeGuestSession(Context context, int userId) { |
| 96 | UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE); |
| 97 | UserInfo currentUser; |
| 98 | try { |
Sudheer Shanka | dc589ac | 2016-11-10 15:30:17 -0800 | [diff] [blame] | 99 | currentUser = ActivityManager.getService().getCurrentUser(); |
Adrian Roos | 5005244 | 2014-07-17 23:35:18 +0200 | [diff] [blame] | 100 | } catch (RemoteException e) { |
| 101 | Log.e(TAG, "Couldn't wipe session because ActivityManager is dead"); |
| 102 | return; |
| 103 | } |
| 104 | if (currentUser.id != userId) { |
| 105 | Log.w(TAG, "User requesting to start a new session (" + userId + ")" |
| 106 | + " is not current user (" + currentUser.id + ")"); |
| 107 | return; |
| 108 | } |
| 109 | if (!currentUser.isGuest()) { |
| 110 | Log.w(TAG, "User requesting to start a new session (" + userId + ")" |
| 111 | + " is not a guest"); |
| 112 | return; |
| 113 | } |
| 114 | |
Amith Yamasani | 1df1473 | 2014-08-29 21:37:27 -0700 | [diff] [blame] | 115 | boolean marked = userManager.markGuestForDeletion(currentUser.id); |
| 116 | if (!marked) { |
| 117 | Log.w(TAG, "Couldn't mark the guest for deletion for user " + userId); |
| 118 | return; |
| 119 | } |
Adrian Roos | 5005244 | 2014-07-17 23:35:18 +0200 | [diff] [blame] | 120 | UserInfo newGuest = userManager.createGuest(context, currentUser.name); |
| 121 | |
| 122 | try { |
| 123 | if (newGuest == null) { |
Xiaohui Chen | 87d0e25 | 2015-07-30 15:38:16 -0700 | [diff] [blame] | 124 | Log.e(TAG, "Could not create new guest, switching back to system user"); |
Sudheer Shanka | dc589ac | 2016-11-10 15:30:17 -0800 | [diff] [blame] | 125 | ActivityManager.getService().switchUser(UserHandle.USER_SYSTEM); |
Amith Yamasani | 1df1473 | 2014-08-29 21:37:27 -0700 | [diff] [blame] | 126 | userManager.removeUser(currentUser.id); |
Adrian Roos | 5005244 | 2014-07-17 23:35:18 +0200 | [diff] [blame] | 127 | WindowManagerGlobal.getWindowManagerService().lockNow(null /* options */); |
| 128 | return; |
| 129 | } |
Sudheer Shanka | dc589ac | 2016-11-10 15:30:17 -0800 | [diff] [blame] | 130 | ActivityManager.getService().switchUser(newGuest.id); |
Amith Yamasani | 1df1473 | 2014-08-29 21:37:27 -0700 | [diff] [blame] | 131 | userManager.removeUser(currentUser.id); |
Adrian Roos | 5005244 | 2014-07-17 23:35:18 +0200 | [diff] [blame] | 132 | } catch (RemoteException e) { |
| 133 | Log.e(TAG, "Couldn't wipe session because ActivityManager or WindowManager is dead"); |
| 134 | return; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | private void cancelDialog() { |
| 139 | if (mNewSessionDialog != null && mNewSessionDialog.isShowing()) { |
| 140 | mNewSessionDialog.cancel(); |
| 141 | mNewSessionDialog = null; |
| 142 | } |
| 143 | } |
| 144 | |
| 145 | private static class ResetSessionDialog extends SystemUIDialog implements |
| 146 | DialogInterface.OnClickListener { |
| 147 | |
| 148 | private static final int BUTTON_WIPE = BUTTON_NEGATIVE; |
| 149 | private static final int BUTTON_DONTWIPE = BUTTON_POSITIVE; |
| 150 | |
| 151 | private final int mUserId; |
| 152 | |
| 153 | public ResetSessionDialog(Context context, int userId) { |
| 154 | super(context); |
| 155 | |
| 156 | setTitle(context.getString(R.string.guest_wipe_session_title)); |
| 157 | setMessage(context.getString(R.string.guest_wipe_session_message)); |
| 158 | setCanceledOnTouchOutside(false); |
| 159 | |
| 160 | setButton(BUTTON_WIPE, |
| 161 | context.getString(R.string.guest_wipe_session_wipe), this); |
| 162 | setButton(BUTTON_DONTWIPE, |
| 163 | context.getString(R.string.guest_wipe_session_dontwipe), this); |
| 164 | |
| 165 | mUserId = userId; |
| 166 | } |
| 167 | |
| 168 | @Override |
| 169 | public void onClick(DialogInterface dialog, int which) { |
| 170 | if (which == BUTTON_WIPE) { |
| 171 | wipeGuestSession(getContext(), mUserId); |
| 172 | dismiss(); |
| 173 | } else if (which == BUTTON_DONTWIPE) { |
| 174 | cancel(); |
| 175 | } |
| 176 | } |
| 177 | } |
| 178 | } |