internal override DeserializeResponse Deserialize(string payload)
{
try
{
using (new MethodLogger(s_logger))
{
var dr = base.Deserialize(payload);
var doc = XDocument.Parse(payload);
var xph = new XPathHelper(doc, Namespaces);
Response.Bank = new BankParams();
Response.OrderId = xph.GetOrderID()?.Value;
Response.TimestampBankParameter = ParseTimestamp(xph.GetTimestampBankParameter()?.Value);
if (dr.HasError)
{
return(dr);
}
var decryptedOd = DecryptOrderData(xph);
var deflatedOd = Decompress(decryptedOd);
var strResp = Encoding.UTF8.GetString(deflatedOd);
var hpbrod = XDocument.Parse(strResp);
s_logger.LogDebug("Order data:\n{orderData}", hpbrod.ToString());
var r = new XPathHelper(hpbrod, Namespaces);
if (r.GetAuthenticationPubKeyInfoX509Data() != null || r.GetEncryptionPubKeyInfoX509Data() != null)
{
throw new DeserializationException("X509 not supported yet", payload);
}
if (r.GetAuthenticationPubKeyInfoPubKeyValue() != null)
{
if (!Enum.TryParse <AuthVersion>(r.GetAuthenticationPubKeyInfoAuthenticationVersion()?.Value,
out var authVersion))
{
throw new DeserializationException(
"unknown authentication version for bank's authentication key");
}
var modulus =
Convert.FromBase64String(r.GetAuthenticationPubKeyInfoModulus()?.Value);
var exponent =
Convert.FromBase64String(r.GetAuthenticationPubKeyInfoExponent()?.Value);
var authPubKeyParams = new RSAParameters {
Exponent = exponent, Modulus = modulus
};
var authPubKey = RSA.Create();
authPubKey.ImportParameters(authPubKeyParams);
Response.Bank.AuthKeys = new AuthKeyPair
{
PublicKey = authPubKey,
Version = authVersion
};
}
else
{
throw new DeserializationException($"{XmlNames.AuthenticationPubKeyInfo} missing", payload);
}
if (r.GetEncryptionPubKeyInfoPubKeyValue() != null)
{
if (!Enum.TryParse <CryptVersion>(r.GetEncryptionPubKeyInfoEncryptionVersion()?.Value,
out var encryptionVersion))
{
throw new DeserializationException("unknown encryption version for bank's encryption key");
}
var modulus =
Convert.FromBase64String(r.GetEncryptionPubKeyInfoModulus()?.Value);
var exponent =
Convert.FromBase64String(r.GetEncryptionPubKeyInfoExponent()?.Value);
var cryptPubKeyParams = new RSAParameters {
Exponent = exponent, Modulus = modulus
};
var cryptPubKey = RSA.Create();
cryptPubKey.ImportParameters(cryptPubKeyParams);
Response.Bank.CryptKeys = new CryptKeyPair
{
PublicKey = cryptPubKey,
Version = encryptionVersion
};
}
else
{
throw new DeserializationException($"{XmlNames.EncryptionPubKeyInfo} missing", payload);
}
s_logger.LogDebug("Bank authentication key digest: {digest}",
CryptoUtils.Print(Response.Bank?.AuthKeys?.Digest));
s_logger.LogDebug("Bank encryption key digest: {digest}",
CryptoUtils.Print(Response.Bank?.CryptKeys?.Digest));
return(dr);
}
}
catch (EbicsException)
{
throw;
}
catch (Exception ex)
{
throw new DeserializationException($"can't deserialize {OrderType} response", ex, payload);
}
}