Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 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 | |
| 17 | package com.android.server.rollback; |
| 18 | |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 19 | import android.annotation.NonNull; |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 20 | import android.content.pm.VersionedPackage; |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 21 | import android.content.rollback.PackageRollbackInfo; |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 22 | import android.content.rollback.PackageRollbackInfo.RestoreInfo; |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 23 | import android.content.rollback.RollbackInfo; |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 24 | import android.util.IntArray; |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 25 | import android.util.Log; |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 26 | import android.util.SparseLongArray; |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 27 | |
| 28 | import libcore.io.IoUtils; |
| 29 | |
| 30 | import org.json.JSONArray; |
| 31 | import org.json.JSONException; |
| 32 | import org.json.JSONObject; |
| 33 | |
| 34 | import java.io.File; |
| 35 | import java.io.IOException; |
| 36 | import java.io.PrintWriter; |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 37 | import java.nio.file.Files; |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 38 | import java.text.ParseException; |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 39 | import java.time.Instant; |
| 40 | import java.time.format.DateTimeParseException; |
| 41 | import java.util.ArrayList; |
| 42 | import java.util.List; |
| 43 | |
| 44 | /** |
| 45 | * Helper class for loading and saving rollback data to persistent storage. |
| 46 | */ |
| 47 | class RollbackStore { |
| 48 | private static final String TAG = "RollbackManager"; |
| 49 | |
| 50 | // Assuming the rollback data directory is /data/rollback, we use the |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 51 | // following directory structure to store persisted data for rollbacks: |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 52 | // /data/rollback/ |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 53 | // XXX/ |
| 54 | // rollback.json |
| 55 | // com.package.A/ |
| 56 | // base.apk |
| 57 | // com.package.B/ |
| 58 | // base.apk |
| 59 | // YYY/ |
| 60 | // rollback.json |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 61 | // |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 62 | // * XXX, YYY are the rollbackIds for the corresponding rollbacks. |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 63 | // * rollback.json contains all relevant metadata for the rollback. |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 64 | // |
| 65 | // TODO: Use AtomicFile for all the .json files? |
| 66 | private final File mRollbackDataDir; |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 67 | |
| 68 | RollbackStore(File rollbackDataDir) { |
| 69 | mRollbackDataDir = rollbackDataDir; |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | /** |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 73 | * Reads the rollback data from persistent storage. |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 74 | */ |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 75 | List<RollbackData> loadAllRollbackData() { |
| 76 | List<RollbackData> rollbacks = new ArrayList<>(); |
| 77 | mRollbackDataDir.mkdirs(); |
| 78 | for (File rollbackDir : mRollbackDataDir.listFiles()) { |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 79 | if (rollbackDir.isDirectory()) { |
| 80 | try { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 81 | rollbacks.add(loadRollbackData(rollbackDir)); |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 82 | } catch (IOException e) { |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 83 | Log.e(TAG, "Unable to read rollback data at " + rollbackDir, e); |
| 84 | removeFile(rollbackDir); |
| 85 | } |
| 86 | } |
| 87 | } |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 88 | return rollbacks; |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | /** |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 92 | * Converts an {@code JSONArray} of integers to an {@code IntArray}. |
| 93 | */ |
| 94 | private static @NonNull IntArray convertToIntArray(@NonNull JSONArray jsonArray) |
| 95 | throws JSONException { |
| 96 | if (jsonArray.length() == 0) { |
| 97 | return new IntArray(); |
| 98 | } |
| 99 | |
| 100 | final int[] ret = new int[jsonArray.length()]; |
| 101 | for (int i = 0; i < ret.length; ++i) { |
| 102 | ret[i] = jsonArray.getInt(i); |
| 103 | } |
| 104 | |
| 105 | return IntArray.wrap(ret); |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * Converts an {@code IntArray} into an {@code JSONArray} of integers. |
| 110 | */ |
| 111 | private static @NonNull JSONArray convertToJsonArray(@NonNull IntArray intArray) { |
| 112 | JSONArray jsonArray = new JSONArray(); |
| 113 | for (int i = 0; i < intArray.size(); ++i) { |
| 114 | jsonArray.put(intArray.get(i)); |
| 115 | } |
| 116 | |
| 117 | return jsonArray; |
| 118 | } |
| 119 | |
| 120 | private static @NonNull JSONArray convertToJsonArray(@NonNull List<RestoreInfo> list) |
| 121 | throws JSONException { |
| 122 | JSONArray jsonArray = new JSONArray(); |
| 123 | for (RestoreInfo ri : list) { |
| 124 | JSONObject jo = new JSONObject(); |
| 125 | jo.put("userId", ri.userId); |
| 126 | jo.put("appId", ri.appId); |
| 127 | jo.put("seInfo", ri.seInfo); |
| 128 | jsonArray.put(jo); |
| 129 | } |
| 130 | |
| 131 | return jsonArray; |
| 132 | } |
| 133 | |
| 134 | private static @NonNull ArrayList<RestoreInfo> convertToRestoreInfoArray( |
| 135 | @NonNull JSONArray array) throws JSONException { |
| 136 | ArrayList<RestoreInfo> restoreInfos = new ArrayList<>(); |
| 137 | |
| 138 | for (int i = 0; i < array.length(); ++i) { |
| 139 | JSONObject jo = array.getJSONObject(i); |
| 140 | restoreInfos.add(new RestoreInfo( |
| 141 | jo.getInt("userId"), |
| 142 | jo.getInt("appId"), |
| 143 | jo.getString("seInfo"))); |
| 144 | } |
| 145 | |
| 146 | return restoreInfos; |
| 147 | } |
| 148 | |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 149 | private static @NonNull JSONArray ceSnapshotInodesToJson( |
| 150 | @NonNull SparseLongArray ceSnapshotInodes) throws JSONException { |
| 151 | JSONArray array = new JSONArray(); |
| 152 | for (int i = 0; i < ceSnapshotInodes.size(); i++) { |
| 153 | JSONObject entryJson = new JSONObject(); |
| 154 | entryJson.put("userId", ceSnapshotInodes.keyAt(i)); |
| 155 | entryJson.put("ceSnapshotInode", ceSnapshotInodes.valueAt(i)); |
| 156 | array.put(entryJson); |
| 157 | } |
| 158 | return array; |
| 159 | } |
| 160 | |
| 161 | private static @NonNull SparseLongArray ceSnapshotInodesFromJson(JSONArray json) |
| 162 | throws JSONException { |
| 163 | SparseLongArray ceSnapshotInodes = new SparseLongArray(json.length()); |
| 164 | for (int i = 0; i < json.length(); i++) { |
| 165 | JSONObject entry = json.getJSONObject(i); |
| 166 | ceSnapshotInodes.append(entry.getInt("userId"), entry.getLong("ceSnapshotInode")); |
| 167 | } |
| 168 | return ceSnapshotInodes; |
| 169 | } |
| 170 | |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 171 | private static JSONObject rollbackInfoToJson(RollbackInfo rollback) throws JSONException { |
| 172 | JSONObject json = new JSONObject(); |
| 173 | json.put("rollbackId", rollback.getRollbackId()); |
| 174 | json.put("packages", toJson(rollback.getPackages())); |
| 175 | json.put("isStaged", rollback.isStaged()); |
| 176 | json.put("causePackages", versionedPackagesToJson(rollback.getCausePackages())); |
| 177 | json.put("committedSessionId", rollback.getCommittedSessionId()); |
| 178 | return json; |
| 179 | } |
| 180 | |
| 181 | private static RollbackInfo rollbackInfoFromJson(JSONObject json) throws JSONException { |
| 182 | return new RollbackInfo( |
| 183 | json.getInt("rollbackId"), |
| 184 | packageRollbackInfosFromJson(json.getJSONArray("packages")), |
| 185 | json.getBoolean("isStaged"), |
| 186 | versionedPackagesFromJson(json.getJSONArray("causePackages")), |
| 187 | json.getInt("committedSessionId")); |
| 188 | } |
| 189 | |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 190 | /** |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 191 | * Creates a new RollbackData instance for a non-staged rollback with |
| 192 | * backupDir assigned. |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 193 | */ |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 194 | RollbackData createNonStagedRollback(int rollbackId) throws IOException { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 195 | File backupDir = new File(mRollbackDataDir, Integer.toString(rollbackId)); |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 196 | return new RollbackData(rollbackId, backupDir, -1); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 197 | } |
| 198 | |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 199 | /** |
| 200 | * Creates a new RollbackData instance for a staged rollback with |
| 201 | * backupDir assigned. |
| 202 | */ |
| 203 | RollbackData createStagedRollback(int rollbackId, int stagedSessionId) |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 204 | throws IOException { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 205 | File backupDir = new File(mRollbackDataDir, Integer.toString(rollbackId)); |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 206 | return new RollbackData(rollbackId, backupDir, stagedSessionId); |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 207 | } |
| 208 | |
| 209 | /** |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 210 | * Creates a backup copy of an apk or apex for a package. |
| 211 | * For packages containing splits, this method should be called for each |
| 212 | * of the package's split apks in addition to the base apk. |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 213 | */ |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 214 | static void backupPackageCodePath(RollbackData data, String packageName, String codePath) |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 215 | throws IOException { |
| 216 | File sourceFile = new File(codePath); |
| 217 | File targetDir = new File(data.backupDir, packageName); |
| 218 | targetDir.mkdirs(); |
| 219 | File targetFile = new File(targetDir, sourceFile.getName()); |
| 220 | |
| 221 | // TODO: Copy by hard link instead to save on cpu and storage space? |
| 222 | Files.copy(sourceFile.toPath(), targetFile.toPath()); |
| 223 | } |
| 224 | |
| 225 | /** |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 226 | * Returns the apk or apex files backed up for the given package. |
| 227 | * Includes the base apk and any splits. Returns null if none found. |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 228 | */ |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 229 | static File[] getPackageCodePaths(RollbackData data, String packageName) { |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 230 | File targetDir = new File(data.backupDir, packageName); |
| 231 | File[] files = targetDir.listFiles(); |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 232 | if (files == null || files.length == 0) { |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 233 | return null; |
| 234 | } |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 235 | return files; |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 236 | } |
| 237 | |
| 238 | /** |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 239 | * Deletes all backed up apks and apex files associated with the given |
| 240 | * rollback. |
| 241 | */ |
| 242 | static void deletePackageCodePaths(RollbackData data) { |
| 243 | for (PackageRollbackInfo info : data.info.getPackages()) { |
| 244 | File targetDir = new File(data.backupDir, info.getPackageName()); |
| 245 | removeFile(targetDir); |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | /** |
Richard Uhler | aad02c0 | 2019-02-27 12:57:20 +0000 | [diff] [blame] | 250 | * Saves the rollback data to persistent storage. |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 251 | */ |
Richard Uhler | aad02c0 | 2019-02-27 12:57:20 +0000 | [diff] [blame] | 252 | void saveRollbackData(RollbackData data) throws IOException { |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 253 | try { |
| 254 | JSONObject dataJson = new JSONObject(); |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 255 | dataJson.put("info", rollbackInfoToJson(data.info)); |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 256 | dataJson.put("timestamp", data.timestamp.toString()); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 257 | dataJson.put("stagedSessionId", data.stagedSessionId); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 258 | dataJson.put("state", rollbackStateToString(data.state)); |
Richard Uhler | ba13ab2 | 2019-02-05 15:27:12 +0000 | [diff] [blame] | 259 | dataJson.put("apkSessionId", data.apkSessionId); |
Richard Uhler | 479a296 | 2019-02-27 10:59:10 +0000 | [diff] [blame] | 260 | dataJson.put("restoreUserDataInProgress", data.restoreUserDataInProgress); |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 261 | |
| 262 | PrintWriter pw = new PrintWriter(new File(data.backupDir, "rollback.json")); |
| 263 | pw.println(dataJson.toString()); |
| 264 | pw.close(); |
| 265 | } catch (JSONException e) { |
| 266 | throw new IOException(e); |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | /** |
Richard Uhler | aad02c0 | 2019-02-27 12:57:20 +0000 | [diff] [blame] | 271 | * Removes all persistant storage associated with the given rollback data. |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 272 | */ |
Richard Uhler | aad02c0 | 2019-02-27 12:57:20 +0000 | [diff] [blame] | 273 | void deleteRollbackData(RollbackData data) { |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 274 | removeFile(data.backupDir); |
| 275 | } |
| 276 | |
| 277 | /** |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 278 | * Reads the metadata for a rollback from the given directory. |
| 279 | * @throws IOException in case of error reading the data. |
| 280 | */ |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 281 | private static RollbackData loadRollbackData(File backupDir) throws IOException { |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 282 | try { |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 283 | File rollbackJsonFile = new File(backupDir, "rollback.json"); |
| 284 | JSONObject dataJson = new JSONObject( |
| 285 | IoUtils.readFileAsString(rollbackJsonFile.getAbsolutePath())); |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 286 | |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 287 | return new RollbackData( |
| 288 | rollbackInfoFromJson(dataJson.getJSONObject("info")), |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 289 | backupDir, |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 290 | Instant.parse(dataJson.getString("timestamp")), |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 291 | dataJson.getInt("stagedSessionId"), |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 292 | rollbackStateFromString(dataJson.getString("state")), |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 293 | dataJson.getInt("apkSessionId"), |
| 294 | dataJson.getBoolean("restoreUserDataInProgress")); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 295 | } catch (JSONException | DateTimeParseException | ParseException e) { |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 296 | throw new IOException(e); |
| 297 | } |
| 298 | } |
| 299 | |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 300 | private static JSONObject toJson(VersionedPackage pkg) throws JSONException { |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 301 | JSONObject json = new JSONObject(); |
| 302 | json.put("packageName", pkg.getPackageName()); |
| 303 | json.put("longVersionCode", pkg.getLongVersionCode()); |
| 304 | return json; |
| 305 | } |
| 306 | |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 307 | private static VersionedPackage versionedPackageFromJson(JSONObject json) throws JSONException { |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 308 | String packageName = json.getString("packageName"); |
| 309 | long longVersionCode = json.getLong("longVersionCode"); |
| 310 | return new VersionedPackage(packageName, longVersionCode); |
| 311 | } |
| 312 | |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 313 | private static JSONObject toJson(PackageRollbackInfo info) throws JSONException { |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 314 | JSONObject json = new JSONObject(); |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 315 | json.put("versionRolledBackFrom", toJson(info.getVersionRolledBackFrom())); |
| 316 | json.put("versionRolledBackTo", toJson(info.getVersionRolledBackTo())); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 317 | |
| 318 | IntArray pendingBackups = info.getPendingBackups(); |
| 319 | List<RestoreInfo> pendingRestores = info.getPendingRestores(); |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 320 | IntArray installedUsers = info.getInstalledUsers(); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 321 | json.put("pendingBackups", convertToJsonArray(pendingBackups)); |
| 322 | json.put("pendingRestores", convertToJsonArray(pendingRestores)); |
| 323 | |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 324 | json.put("isApex", info.isApex()); |
| 325 | |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 326 | json.put("installedUsers", convertToJsonArray(installedUsers)); |
| 327 | json.put("ceSnapshotInodes", ceSnapshotInodesToJson(info.getCeSnapshotInodes())); |
| 328 | |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 329 | return json; |
| 330 | } |
| 331 | |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 332 | private static PackageRollbackInfo packageRollbackInfoFromJson(JSONObject json) |
| 333 | throws JSONException { |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 334 | VersionedPackage versionRolledBackFrom = versionedPackageFromJson( |
| 335 | json.getJSONObject("versionRolledBackFrom")); |
| 336 | VersionedPackage versionRolledBackTo = versionedPackageFromJson( |
| 337 | json.getJSONObject("versionRolledBackTo")); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 338 | |
| 339 | final IntArray pendingBackups = convertToIntArray( |
| 340 | json.getJSONArray("pendingBackups")); |
| 341 | final ArrayList<RestoreInfo> pendingRestores = convertToRestoreInfoArray( |
| 342 | json.getJSONArray("pendingRestores")); |
| 343 | |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 344 | final boolean isApex = json.getBoolean("isApex"); |
| 345 | |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 346 | final IntArray installedUsers = convertToIntArray(json.getJSONArray("installedUsers")); |
| 347 | final SparseLongArray ceSnapshotInodes = ceSnapshotInodesFromJson( |
| 348 | json.getJSONArray("ceSnapshotInodes")); |
| 349 | |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 350 | return new PackageRollbackInfo(versionRolledBackFrom, versionRolledBackTo, |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 351 | pendingBackups, pendingRestores, isApex, installedUsers, ceSnapshotInodes); |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 352 | } |
| 353 | |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 354 | private static JSONArray versionedPackagesToJson(List<VersionedPackage> packages) |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 355 | throws JSONException { |
| 356 | JSONArray json = new JSONArray(); |
| 357 | for (VersionedPackage pkg : packages) { |
| 358 | json.put(toJson(pkg)); |
| 359 | } |
| 360 | return json; |
| 361 | } |
| 362 | |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 363 | private static List<VersionedPackage> versionedPackagesFromJson(JSONArray json) |
| 364 | throws JSONException { |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 365 | List<VersionedPackage> packages = new ArrayList<>(); |
| 366 | for (int i = 0; i < json.length(); ++i) { |
| 367 | packages.add(versionedPackageFromJson(json.getJSONObject(i))); |
| 368 | } |
| 369 | return packages; |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 370 | } |
| 371 | |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 372 | private static JSONArray toJson(List<PackageRollbackInfo> infos) throws JSONException { |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 373 | JSONArray json = new JSONArray(); |
| 374 | for (PackageRollbackInfo info : infos) { |
| 375 | json.put(toJson(info)); |
| 376 | } |
| 377 | return json; |
| 378 | } |
| 379 | |
Richard Uhler | f16ebd0 | 2019-02-27 11:18:45 +0000 | [diff] [blame] | 380 | private static List<PackageRollbackInfo> packageRollbackInfosFromJson(JSONArray json) |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 381 | throws JSONException { |
| 382 | List<PackageRollbackInfo> infos = new ArrayList<>(); |
| 383 | for (int i = 0; i < json.length(); ++i) { |
| 384 | infos.add(packageRollbackInfoFromJson(json.getJSONObject(i))); |
| 385 | } |
| 386 | return infos; |
| 387 | } |
| 388 | |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 389 | /** |
| 390 | * Deletes a file completely. |
| 391 | * If the file is a directory, its contents are deleted as well. |
| 392 | * Has no effect if the directory does not exist. |
| 393 | */ |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 394 | private static void removeFile(File file) { |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 395 | if (file.isDirectory()) { |
| 396 | for (File child : file.listFiles()) { |
| 397 | removeFile(child); |
| 398 | } |
| 399 | } |
| 400 | if (file.exists()) { |
| 401 | file.delete(); |
| 402 | } |
| 403 | } |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 404 | |
| 405 | private static String rollbackStateToString(@RollbackData.RollbackState int state) { |
| 406 | switch (state) { |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 407 | case RollbackData.ROLLBACK_STATE_ENABLING: return "enabling"; |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 408 | case RollbackData.ROLLBACK_STATE_AVAILABLE: return "available"; |
| 409 | case RollbackData.ROLLBACK_STATE_COMMITTED: return "committed"; |
| 410 | } |
| 411 | throw new AssertionError("Invalid rollback state: " + state); |
| 412 | } |
| 413 | |
| 414 | private static @RollbackData.RollbackState int rollbackStateFromString(String state) |
| 415 | throws ParseException { |
| 416 | switch (state) { |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 417 | case "enabling": return RollbackData.ROLLBACK_STATE_ENABLING; |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 418 | case "available": return RollbackData.ROLLBACK_STATE_AVAILABLE; |
| 419 | case "committed": return RollbackData.ROLLBACK_STATE_COMMITTED; |
| 420 | } |
| 421 | throw new ParseException("Invalid rollback state: " + state, 0); |
| 422 | } |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 423 | } |