private IMetastorePersistence <JObject> CreateMetaStorePersistence()
{
if (MetaStoreType.Equals(MetastoreAdo, StringComparison.InvariantCultureIgnoreCase))
{
string metastoreAdoConnectionString = GetParam(MetastoreAdoConnectionString);
if (string.IsNullOrWhiteSpace(metastoreAdoConnectionString))
{
throw new AppEncryptionException("Missing ADO connection string");
}
return(AdoMetastorePersistenceImpl
.NewBuilder(MySqlClientFactory.Instance, metastoreAdoConnectionString)
.Build());
}
if (MetaStoreType.Equals(MetastoreDynamoDb, StringComparison.InvariantCultureIgnoreCase))
{
return(DynamoDbMetastorePersistenceImpl.NewBuilder().Build());
}
return(new MemoryPersistenceImpl <JObject>());
}
private static async void App(Options options)
{
IMetastorePersistence <JObject> metastorePersistence = null;
KeyManagementService keyManagementService = null;
if (options.MetaStore == MetaStore.ADO)
{
if (options.AdoConnectionString != null)
{
logger.LogInformation("using ADO-based metastore...");
metastorePersistence = AdoMetastorePersistenceImpl
.NewBuilder(MySqlClientFactory.Instance, options.AdoConnectionString)
.Build();
}
else
{
logger.LogError("ADO connection string is a mandatory parameter with MetaStore Type: ADO");
Console.WriteLine(HelpText.AutoBuild(cmdOptions, null, null));
return;
}
}
else if (options.MetaStore == MetaStore.DYNAMODB)
{
logger.LogInformation("using DynamoDB-based metastore...");
AWSConfigs.AWSRegion = "us-west-2";
metastorePersistence = DynamoDbMetastorePersistenceImpl.NewBuilder().Build();
}
else
{
logger.LogInformation("using in-memory metastore...");
metastorePersistence = new MemoryPersistenceImpl <JObject>();
}
if (options.Kms == Kms.AWS)
{
if (options.PreferredRegion != null && options.RegionToArnTuples != null)
{
Dictionary <string, string> regionToArnDictionary = new Dictionary <string, string>();
foreach (string regionArnPair in options.RegionToArnTuples)
{
string[] regionArnArray = regionArnPair.Split("=");
regionToArnDictionary.Add(regionArnArray[0], regionArnArray[1]);
}
logger.LogInformation("using AWS KMS...");
keyManagementService = AwsKeyManagementServiceImpl
.NewBuilder(regionToArnDictionary, options.PreferredRegion).Build();
}
else
{
logger.LogError("Preferred region and <region>=<arn> tuples are mandatory with KMS Type: AWS");
Console.WriteLine(HelpText.AutoBuild(cmdOptions, null, null));
return;
}
}
else
{
logger.LogInformation("using static KMS...");
keyManagementService = new StaticKeyManagementServiceImpl("secretmasterkey!");
}
CryptoPolicy cryptoPolicy = BasicExpiringCryptoPolicy
.NewBuilder()
.WithKeyExpirationDays(KeyExpirationDays)
.WithRevokeCheckMinutes(CacheCheckMinutes)
.Build();
// Setup metrics reporters and always include console.
IMetricsBuilder metricsBuilder = new MetricsBuilder()
.Report.ToConsole(consoleOptions => consoleOptions.FlushInterval = TimeSpan.FromSeconds(60));
// CloudWatch metrics generation
if (options.EnableCloudWatch)
{
// Fill in when we open source our App.Metrics cloudwatch reporter separately
}
IMetrics metrics = metricsBuilder.Build();
// Create a session factory for this app. Normally this would be done upon app startup and the
// same factory would be used anytime a new session is needed for a partition (e.g., shopper).
// We've split it out into multiple using blocks to underscore this point.
using (AppEncryptionSessionFactory appEncryptionSessionFactory = AppEncryptionSessionFactory
.NewBuilder("productId", "reference_app")
.WithMetaStorePersistence(metastorePersistence)
.WithCryptoPolicy(cryptoPolicy)
.WithKeyManagementService(keyManagementService)
.WithMetrics(metrics)
.Build())
{
// Now create an actual session for a partition (which in our case is a pretend shopper id). This session is used
// for a transaction and is disposed automatically after use due to the IDisposable implementation.
using (AppEncryption <byte[], byte[]> appEncryptionBytes =
appEncryptionSessionFactory.GetAppEncryptionBytes("shopper123"))
{
const string originalPayloadString = "mysupersecretpayload";
foreach (int i in Enumerable.Range(0, options.Iterations))
{
string dataRowString;
// If we get a DRR as a command line argument, we want to directly decrypt it
if (options.Drr != null)
{
dataRowString = options.Drr;
}
else
{
// Encrypt the payload
byte[] dataRowRecordBytes =
appEncryptionBytes.Encrypt(Encoding.UTF8.GetBytes(originalPayloadString));
// Consider this us "persisting" the DRR
dataRowString = Convert.ToBase64String(dataRowRecordBytes);
}
logger.LogInformation("dataRowRecord as string = {dataRow}", dataRowString);
byte[] newDataRowRecordBytes = Convert.FromBase64String(dataRowString);
// Decrypt the payload
string decryptedPayloadString =
Encoding.UTF8.GetString(appEncryptionBytes.Decrypt(newDataRowRecordBytes));
logger.LogInformation("decryptedPayloadString = {payload}", decryptedPayloadString);
logger.LogInformation("matches = {result}", originalPayloadString.Equals(decryptedPayloadString));
}
}
}
// Force final publish of metrics
await Task.WhenAll(((IMetricsRoot)metrics).ReportRunner.RunAllAsync());
}