public string Create(string plainText)
{
if (string.IsNullOrEmpty(plainText))
{
throw new ArgumentException("Value cannot be null or empty.", nameof(plainText));
}
var tokenStorageItem = new TokenStorageItem();
var salt = SaltUtil.GenerateSecureRandomSalt();
var encrypted = EncryptionProvider.Encrypt(plainText, KeyVaultUtil.GetSecureSecretFromVault(), salt);
if (encrypted != null)
{
tokenStorageItem = new TokenStorageItem
{
Token = CreateTokenGuid(),
SaltValue = salt,
EcnryptedValue = encrypted,
CreateDateTime = DateTime.UtcNow,
UpdatedDateTime = DateTime.UtcNow
};
}
//write or append to json file
WriteAppendDataItem(tokenStorageItem);
return(tokenStorageItem.Token);
}
/// <summary>
/// Helper method to write the contents of the list of TokenStorageItem back to the file system.
/// </summary>
/// <param name="item">TokenStorageItem item to add to the list.</param>
private void WriteAppendDataItem(TokenStorageItem item)
{
var data = LoadJsonFromFile();
data.Add(item);
//convert to json string
var json = JsonConvert.SerializeObject(data.ToArray(), Formatting.Indented);
//write file, or overwrite if it already exists
File.WriteAllText(FilePath, json);
}
