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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
     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 
     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
    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
    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