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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.UserInfo;
     26 import android.os.UserHandle;
     27 import android.os.UserManager;
     28 import android.util.Log;
     29 
     30 import java.util.List;
     31 
     32 import static android.content.pm.PackageManager.GET_ACTIVITIES;
     33 import static android.content.pm.PackageManager.GET_META_DATA;
     34 import static android.content.pm.PackageManager.GET_RESOLVED_FILTER;
     35 import static android.content.pm.PackageManager.MATCH_DISABLED_COMPONENTS;
     36 
     37 /**
     38  * Listens to {@link Intent.ACTION_BOOT_COMPLETED} and {@link Intent.ACTION_PRE_BOOT_COMPLETED}
     39  * performs setup steps for a managed profile (disables the launcher icon of the Settings app,
     40  * adds cross-profile intent filters for the appropriate Settings activities), and disables the
     41  * webview setting for non-admin users.
     42  */
     43 public class SettingsInitialize extends BroadcastReceiver {
     44     private static final String TAG = "Settings";
     45     private static final String PRIMARY_PROFILE_SETTING =
     46             "com.android.settings.PRIMARY_PROFILE_CONTROLLED";
     47 
     48     @Override
     49     public void onReceive(Context context, Intent broadcast) {
     50         final UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE);
     51         UserInfo userInfo = um.getUserInfo(UserHandle.myUserId());
     52         final PackageManager pm  = context.getPackageManager();
     53         managedProfileSetup(context, pm, broadcast, userInfo);
     54         webviewSettingSetup(context, pm, userInfo);
     55     }
     56 
     57     private void managedProfileSetup(Context context, final PackageManager pm, Intent broadcast,
     58             UserInfo userInfo) {
     59         if (userInfo == null || !userInfo.isManagedProfile()) {
     60             return;
     61         }
     62         Log.i(TAG, "Received broadcast: " + broadcast.getAction()
     63                 + ". Setting up intent forwarding for managed profile.");
     64         // Clear any previous intent forwarding we set up
     65         pm.clearCrossProfileIntentFilters(userInfo.id);
     66 
     67         // Set up intent forwarding for implicit intents
     68         Intent intent = new Intent();
     69         intent.addCategory(Intent.CATEGORY_DEFAULT);
     70         intent.setPackage(context.getPackageName());
     71 
     72         // Resolves activities for the managed profile (which we're running as)
     73         List<ResolveInfo> resolvedIntents = pm.queryIntentActivities(intent,
     74                 GET_ACTIVITIES | GET_META_DATA | GET_RESOLVED_FILTER | MATCH_DISABLED_COMPONENTS);
     75         final int count = resolvedIntents.size();
     76         for (int i = 0; i < count; i++) {
     77             ResolveInfo info = resolvedIntents.get(i);
     78             if (info.filter != null && info.activityInfo != null
     79                     && info.activityInfo.metaData != null) {
     80                 boolean shouldForward = info.activityInfo.metaData.getBoolean(
     81                         PRIMARY_PROFILE_SETTING);
     82                 if (shouldForward) {
     83                     pm.addCrossProfileIntentFilter(info.filter, userInfo.id,
     84                         userInfo.profileGroupId, PackageManager.SKIP_CURRENT_PROFILE);
     85                 }
     86             }
     87         }
     88 
     89         // Disable launcher icon
     90         // Note: This needs to happen after forwarding intents, otherwise the main Settings
     91         // intent gets lost
     92         ComponentName settingsComponentName = new ComponentName(context, Settings.class);
     93         pm.setComponentEnabledSetting(settingsComponentName,
     94                 PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
     95     }
     96 
     97     // Disable WebView Setting if the current user is not an admin
     98     private void webviewSettingSetup(Context context, PackageManager pm, UserInfo userInfo) {
     99         if (userInfo == null) {
    100             return;
    101         }
    102         ComponentName settingsComponentName =
    103             new ComponentName(context, WebViewImplementation.class);
    104         pm.setComponentEnabledSetting(settingsComponentName,
    105                 userInfo.isAdmin() ?
    106                         PackageManager.COMPONENT_ENABLED_STATE_ENABLED :
    107                         PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
    108                 PackageManager.DONT_KILL_APP);
    109     }
    110 }
    111