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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.settings;
18 
19 import android.content.BroadcastReceiver;
20 import android.content.ComponentName;
21 import android.content.Context;
22 import android.content.Intent;
23 import android.content.pm.PackageManager;
24 import android.content.pm.ResolveInfo;
25 import android.content.pm.ShortcutInfo;
26 import android.content.pm.ShortcutManager;
27 import android.content.pm.UserInfo;
28 import android.os.UserHandle;
29 import android.os.UserManager;
30 import android.support.annotation.VisibleForTesting;
31 import android.util.Log;
32 
33 import java.util.ArrayList;
34 import java.util.List;
35 
36 import static android.content.pm.PackageManager.GET_ACTIVITIES;
37 import static android.content.pm.PackageManager.GET_META_DATA;
38 import static android.content.pm.PackageManager.GET_RESOLVED_FILTER;
39 import static android.content.pm.PackageManager.MATCH_DISABLED_COMPONENTS;
40 
41 import com.android.settings.shortcut.CreateShortcut;
42 
43 /**
44  * Listens to {@link Intent.ACTION_PRE_BOOT_COMPLETED} and {@link Intent.ACTION_USER_INITIALIZED}
45  * performs setup steps for a managed profile (disables the launcher icon of the Settings app,
46  * adds cross-profile intent filters for the appropriate Settings activities), disables the
47  * webview setting for non-admin users, and updates the intent flags for any existing shortcuts.
48  */
49 public class SettingsInitialize extends BroadcastReceiver {
50     private static final String TAG = "Settings";
51     private static final String PRIMARY_PROFILE_SETTING =
52             "com.android.settings.PRIMARY_PROFILE_CONTROLLED";
53     private static final String SETTINGS_PACKAGE = "com.android.settings";
54     private static final String WEBVIEW_IMPLEMENTATION_ACTIVITY = ".WebViewImplementation";
55 
56     @Override
onReceive(Context context, Intent broadcast)57     public void onReceive(Context context, Intent broadcast) {
58         final UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE);
59         UserInfo userInfo = um.getUserInfo(UserHandle.myUserId());
60         final PackageManager pm  = context.getPackageManager();
61         managedProfileSetup(context, pm, broadcast, userInfo);
62         webviewSettingSetup(context, pm, userInfo);
63         refreshExistingShortcuts(context);
64     }
65 
managedProfileSetup(Context context, final PackageManager pm, Intent broadcast, UserInfo userInfo)66     private void managedProfileSetup(Context context, final PackageManager pm, Intent broadcast,
67             UserInfo userInfo) {
68         if (userInfo == null || !userInfo.isManagedProfile()) {
69             return;
70         }
71         Log.i(TAG, "Received broadcast: " + broadcast.getAction()
72                 + ". Setting up intent forwarding for managed profile.");
73         // Clear any previous intent forwarding we set up
74         pm.clearCrossProfileIntentFilters(userInfo.id);
75 
76         // Set up intent forwarding for implicit intents
77         Intent intent = new Intent();
78         intent.addCategory(Intent.CATEGORY_DEFAULT);
79         intent.setPackage(context.getPackageName());
80 
81         // Resolves activities for the managed profile (which we're running as)
82         List<ResolveInfo> resolvedIntents = pm.queryIntentActivities(intent,
83                 GET_ACTIVITIES | GET_META_DATA | GET_RESOLVED_FILTER | MATCH_DISABLED_COMPONENTS);
84         final int count = resolvedIntents.size();
85         for (int i = 0; i < count; i++) {
86             ResolveInfo info = resolvedIntents.get(i);
87             if (info.filter != null && info.activityInfo != null
88                     && info.activityInfo.metaData != null) {
89                 boolean shouldForward = info.activityInfo.metaData.getBoolean(
90                         PRIMARY_PROFILE_SETTING);
91                 if (shouldForward) {
92                     pm.addCrossProfileIntentFilter(info.filter, userInfo.id,
93                         userInfo.profileGroupId, PackageManager.SKIP_CURRENT_PROFILE);
94                 }
95             }
96         }
97 
98         // Disable launcher icon
99         ComponentName settingsComponentName = new ComponentName(context, Settings.class);
100         pm.setComponentEnabledSetting(settingsComponentName,
101                 PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
102         // Disable shortcut picker.
103         ComponentName shortcutComponentName = new ComponentName(context, CreateShortcut.class);
104         pm.setComponentEnabledSetting(shortcutComponentName,
105                 PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
106     }
107 
108     // Disable WebView Setting if the current user is not an admin
webviewSettingSetup(Context context, PackageManager pm, UserInfo userInfo)109     private void webviewSettingSetup(Context context, PackageManager pm, UserInfo userInfo) {
110         if (userInfo == null) {
111             return;
112         }
113         ComponentName settingsComponentName =
114             new ComponentName(SETTINGS_PACKAGE, SETTINGS_PACKAGE + WEBVIEW_IMPLEMENTATION_ACTIVITY);
115         pm.setComponentEnabledSetting(settingsComponentName,
116                 userInfo.isAdmin() ?
117                         PackageManager.COMPONENT_ENABLED_STATE_ENABLED :
118                         PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
119                 PackageManager.DONT_KILL_APP);
120     }
121 
122     // Refresh settings shortcuts to have correct intent flags
123     @VisibleForTesting
refreshExistingShortcuts(Context context)124     void refreshExistingShortcuts(Context context) {
125         final ShortcutManager shortcutManager = context.getSystemService(ShortcutManager.class);
126         final List<ShortcutInfo> pinnedShortcuts = shortcutManager.getPinnedShortcuts();
127         final List<ShortcutInfo> updates = new ArrayList<>();
128         for (ShortcutInfo info : pinnedShortcuts) {
129             final Intent shortcutIntent = info.getIntent();
130             shortcutIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
131             final ShortcutInfo updatedInfo = new ShortcutInfo.Builder(context, info.getId())
132                     .setIntent(shortcutIntent)
133                     .build();
134             updates.add(updatedInfo);
135         }
136         shortcutManager.updateShortcuts(updates);
137     }
138 
139 }
140