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.cts.splitapp; 18 19 import android.content.BroadcastReceiver; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.provider.Settings; 23 import android.util.Log; 24 25 import java.io.File; 26 27 public class BaseBootReceiver extends BroadcastReceiver { 28 private static final String TAG = "SplitApp"; 29 30 @Override 31 public void onReceive(Context context, Intent intent) { 32 try { 33 context = context.createDeviceProtectedStorageContext(); 34 final File probe = new File(context.getFilesDir(), 35 getBootCount(context) + "." + intent.getAction()); 36 Log.d(TAG, "Touching probe " + probe); 37 probe.createNewFile(); 38 exposeFile(probe); 39 } catch (Exception e) { 40 throw new RuntimeException(e); 41 } 42 } 43 44 private static int getBootCount(Context context) throws Exception { 45 return Settings.Global.getInt(context.getContentResolver(), Settings.Global.BOOT_COUNT); 46 } 47 48 private static File exposeFile(File file) throws Exception { 49 file.setReadable(true, false); 50 file.setReadable(true, true); 51 52 File dir = file.getParentFile(); 53 do { 54 dir.setExecutable(true, false); 55 dir.setExecutable(true, true); 56 dir = dir.getParentFile(); 57 } while (dir != null); 58 59 return file; 60 } 61 } 62
