1 /* 2 * Copyright 2018, 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 package com.android.managedprovisioning.task; 17 18 import android.content.Context; 19 import android.os.FileUtils; 20 21 import com.android.internal.annotations.VisibleForTesting; 22 import com.android.managedprovisioning.analytics.MetricsWriterFactory; 23 import com.android.managedprovisioning.analytics.ProvisioningAnalyticsTracker; 24 import com.android.managedprovisioning.common.ManagedProvisioningSharedPreferences; 25 import com.android.managedprovisioning.common.ProvisionLogger; 26 import com.android.managedprovisioning.common.SettingsFacade; 27 import com.android.managedprovisioning.task.nonrequiredapps.SystemAppsSnapshot; 28 29 import java.io.File; 30 import java.util.regex.Matcher; 31 import java.util.regex.Pattern; 32 33 public class MigrateSystemAppsSnapshotTask extends AbstractProvisioningTask { 34 private static final Pattern XML_FILE_NAME_PATTERN = Pattern.compile("(\\d+)\\.xml"); 35 MigrateSystemAppsSnapshotTask(Context context, Callback callback)36 public MigrateSystemAppsSnapshotTask(Context context, Callback callback) { 37 this(context, callback, 38 new ProvisioningAnalyticsTracker( 39 MetricsWriterFactory.getMetricsWriter(context, new SettingsFacade()), 40 new ManagedProvisioningSharedPreferences(context))); 41 } 42 43 @VisibleForTesting MigrateSystemAppsSnapshotTask(Context context, Callback callback, ProvisioningAnalyticsTracker provisioningAnalyticsTracker)44 public MigrateSystemAppsSnapshotTask(Context context, Callback callback, 45 ProvisioningAnalyticsTracker provisioningAnalyticsTracker) { 46 super(context, null, callback, provisioningAnalyticsTracker); 47 } 48 49 @Override run(int userId)50 public void run(int userId) { 51 migrateIfNecessary(); 52 } 53 54 /** 55 * Snapshot files are renamed from {user_id}.xml to {user_serial_number}.xml and moved 56 * to the new folder. 57 */ migrateIfNecessary()58 private void migrateIfNecessary() { 59 File legacyFolder = SystemAppsSnapshot.getLegacyFolder(mContext); 60 if (!legacyFolder.exists()) { 61 return; 62 } 63 ProvisionLogger.logi("Found legacy system_apps folder, kick start migration."); 64 SystemAppsSnapshot.getFolder(mContext).mkdirs(); 65 File[] files = legacyFolder.listFiles(); 66 for (File file : files) { 67 String fileName = file.getName(); 68 Matcher matcher = XML_FILE_NAME_PATTERN.matcher(fileName); 69 if (!matcher.find()) { 70 ProvisionLogger.logw("Found invalid file during migration: " + fileName); 71 continue; 72 } 73 74 int userId = Integer.parseInt(matcher.group(1)); 75 File destination; 76 try { 77 destination = SystemAppsSnapshot.getSystemAppsFile(mContext, userId); 78 } catch (IllegalArgumentException ex) { 79 ProvisionLogger.logi( 80 "user " + userId + " no longer exists, skip migrating its snapshot file"); 81 continue; 82 } 83 ProvisionLogger.logi( 84 "Moving " + file.getAbsolutePath() + " to " + destination.getAbsolutePath()); 85 boolean success = file.renameTo(destination); 86 if (!success) { 87 ProvisionLogger.loge("Failed to migrate " + file.getAbsolutePath()); 88 } 89 } 90 FileUtils.deleteContentsAndDir(legacyFolder); 91 } 92 93 @Override getStatusMsgId()94 public int getStatusMsgId() { 95 // OTA only task, not used. 96 return 0; 97 } 98 } 99