public void checkUpgrade(Context context, NetworkParameters params) {
if (checkDone) {
// skip if already done
return;
}
String appVersion = SharedPrefUtils.getAppVersion(context);
if (appVersion == null) {
// first start - no app version yet.
Log.d(TAG, "No appVersion yet - first launch");
} else if (appVersion.equals(BuildConfig.VERSION_NAME)) {
Log.d(TAG, "appVersion '" + appVersion + "' equals current version - no action required");
} else {
// add upgrade instructions as needed.
}
if (migrateFrom_v1_0_262(context)) {
Log.d(TAG, "Migrate from v1.0.262 / 2of2 multisig (CeBIT) to CLTV");
/* special case: migrate from objectstore and 2of2 multisig wallet
* - migrate from early version v1.0.262 (CeBIT)
* - enable transfer of funds to new address (2of2 multisig to cltv)
*/
try {
// migration is done for mainnet and testnet regardless of the current network setting of
// the app!
NetworkParameters[] cltvMigrationParams =
new NetworkParameters[] {MainNetParams.get(), TestNet3Params.get()};
for (NetworkParameters migrationParams : cltvMigrationParams) {
doMigrateFrom_v1_0_262(context, migrationParams);
}
} catch (Exception e) {
Log.e(TAG, "Migration failed: ", e);
}
}
SharedPrefUtils.setAppVersion(context, BuildConfig.VERSION_NAME);
checkDone = true;
}
private void doMigrateFrom_v1_0_262(Context context, NetworkParameters migrationParams)
throws IOException {
Log.d(TAG, "********* MIGRATION FROM v1.0.262 - " + migrationParams.getId() + "*********");
final File rootDir = context.getFilesDir();
final File storageDir;
final File archiveDir = new File(rootDir, "archive_" + System.currentTimeMillis());
final File walletFile;
final File chainFile;
final File newWalletFile;
final File newChainFile;
if (ClientUtils.isMainNet(migrationParams)) {
String walletFilesPrefix = AppConfig.MainNetConfig.get().getWalletFilesPrefix();
storageDir = new File(rootDir, "mainnet_wallet__uuid_object_storage");
walletFile = new File(rootDir, "mainnet_wallet_.wallet");
newWalletFile = new File(rootDir, walletFilesPrefix + ".wallet");
chainFile = new File(rootDir, "mainnet_wallet_.spvchain");
newChainFile = new File(rootDir, walletFilesPrefix + ".spvchain");
} else if (ClientUtils.isTestNet(migrationParams)) {
String walletFilesPrefix = AppConfig.TestNetConfig.get().getWalletFilesPrefix();
storageDir = new File(rootDir, "testnet_wallet__uuid_object_storage");
walletFile = new File(rootDir, "testnet_wallet_.wallet");
newWalletFile = new File(rootDir, walletFilesPrefix + ".wallet");
chainFile = new File(rootDir, "testnet_wallet_.spvchain");
newChainFile = new File(rootDir, walletFilesPrefix + ".spvchain");
} else {
throw new RuntimeException(
"Network params not supported (unknown): " + migrationParams.toString());
}
final File keyFile = new File(storageDir, "ECKeyWrapper.json");
if (keyFile.exists() && walletFile.exists()) {
// Keys: stored in ECKeyWrapper.json
/* Key format (JSON):
{
"...uuid1...": {
"isPublicOnly": true,
"keyPayload": [...bytes (integers)...],
"name": "remote_server_public_key",
"uuid": "...uuid1..."
},
"...uuid2...": {
"isPublicOnly": false,
"keyPayload": [...bytes (integers)...],
"name": "remote_client_public_key",
"uuid": "...uuid2..."
}
}
*/
Log.d(TAG, "Key file found: " + keyFile);
String keyFileJson = FileUtils.readFileToString(keyFile);
Type type = new TypeToken<Map<String, ECKeyWrapper>>() {}.getType();
// Note: do not use gson from serializeutils (key is not stored in base64).
Map<String, ECKeyWrapper> keys = new Gson().fromJson(keyFileJson, type);
ECKey serverKey = null;
ECKey clientKey = null;
for (ECKeyWrapper key : keys.values()) {
if (key.isPublicOnly && key.name.equals("remote_server_public_key")) {
serverKey = ECKey.fromPublicOnly(key.keyPayload);
} else if (!key.isPublicOnly && key.name.equals("remote_client_public_key")) {
clientKey = ECKey.fromPrivate(key.keyPayload);
} else {
Log.d(TAG, "Unknown key name: " + key.name);
}
}
if (clientKey != null && serverKey != null) {
Log.d(TAG, "Found client and server keys - store in shared preferences.");
try {
/** ******** Actual Migration Code ********* */
SharedPrefUtils.setClientKey(context, migrationParams, clientKey);
SharedPrefUtils.setServerKey(context, migrationParams, serverKey, "n/a - migration");
Log.d(
TAG,
"Migrated keys:"
+ " clientPubKey="
+ clientKey.getPublicKeyAsHex()
+ ", serverPubKey="
+ serverKey.getPublicKeyAsHex());
// move wallet file
Log.d(
TAG,
"Migrate wallet file: " + walletFile.toString() + " -> " + newWalletFile.toString());
FileUtils.copyFile(walletFile, newWalletFile);
Log.d(
TAG,
"Migrate chain file: " + chainFile.toString() + " -> " + newChainFile.toString());
FileUtils.copyFile(chainFile, newChainFile);
SharedPrefUtils.enableMultisig2of2ToCltvForwarder(context);
// move everything to an archive file.
Log.d(TAG, "Move old files to archive dir: " + archiveDir.toString());
FileUtils.moveToDirectory(storageDir, archiveDir, true);
FileUtils.moveToDirectory(walletFile, archiveDir, true);
FileUtils.moveToDirectory(chainFile, archiveDir, true);
} catch (Exception e) {
Log.d(TAG, "Exception: ", e);
// clear the changes made.
SharedPrefUtils.setClientKey(context, migrationParams, null);
SharedPrefUtils.setServerKey(context, migrationParams, null, "");
if (newWalletFile.exists()) {
newWalletFile.delete();
}
}
}
} else {
Log.d(
TAG,
"Key file or wallet file not found - no migration required - "
+ String.format(
"keyFile: %s (exists: %s), walletFile: %s (exists: %s)",
keyFile.toString(),
keyFile.exists(),
walletFile.toString(),
walletFile.exists()));
}
Log.d(TAG, "********* MIGRATION FROM v1.0.262 FINISHED *********");
}