/// <summary>
/// Inflate an object instance from the stream
/// </summary>
public bool Inflate(Stream source)
{
// Identifier of the feature
TDSFeatureID featureID = TDSFeatureID.Terminator;
// Iterate
do
{
// Read the feature type
featureID = (TDSFeatureID)source.ReadByte();
// Token being inflated
TDSLogin7FeatureOptionToken optionToken = null;
// skip this feature extension
switch (featureID)
{
case TDSFeatureID.FederatedAuthentication:
{
// Federated authentication
optionToken = new TDSLogin7FedAuthOptionToken();
break;
}
case TDSFeatureID.SessionRecovery:
{
// Session recovery
optionToken = new TDSLogin7SessionRecoveryOptionToken();
break;
}
case TDSFeatureID.Terminator:
{
// Do nothing
break;
}
default:
{
// Create a generic option
optionToken = new TDSLogin7GenericOptionToken(featureID);
break;
}
}
// Check if we have an option token
if (optionToken != null)
{
// Inflate it
optionToken.Inflate(source);
// Register with the collection
Add(optionToken);
// Update inflation offset
InflationSize += optionToken.InflationSize;
}
}while (TDSFeatureID.Terminator != featureID);
// We don't support continuation of inflation so report as fully inflated
return(true);
}
/// <summary>
/// Ensure that federated authentication option is valid
/// </summary>
protected virtual TDSMessageCollection CheckFederatedAuthenticationOption(ITDSServerSession session, TDSLogin7FedAuthOptionToken federatedAuthenticationOption)
{
// Check if server's prelogin response for FedAuthRequired prelogin option is echoed back correctly in FedAuth Feature Extenion Echo
if (federatedAuthenticationOption.Echo != (session as GenericTDSServerSession).FedAuthRequiredPreLoginServerResponse)
{
// Create Error message
string message =
string.Format("FEDAUTHREQUIRED option in the prelogin response is not echoed back correctly: in prelogin response, it is {0} and in login, it is {1}: ",
(session as GenericTDSServerSession).FedAuthRequiredPreLoginServerResponse,
federatedAuthenticationOption.Echo);
// Create errorToken token
TDSErrorToken errorToken = new TDSErrorToken(3456, 34, 23, message);
// Log response
TDSUtilities.Log(Arguments.Log, "Response", errorToken);
// Create DONE token
TDSDoneToken doneToken = new TDSDoneToken(TDSDoneTokenStatusType.Final | TDSDoneTokenStatusType.Error);
// Log response
TDSUtilities.Log(Arguments.Log, "Response", doneToken);
// Build a collection with a single message of two tokens
return new TDSMessageCollection(new TDSMessage(TDSMessageType.Response, errorToken, doneToken));
}
// Check if the nonce exists
if ((federatedAuthenticationOption.Nonce == null && federatedAuthenticationOption.Library == TDSFedAuthLibraryType.IDCRL)
|| !AreEqual((session as GenericTDSServerSession).ServerNonce, federatedAuthenticationOption.Nonce))
{
// Error message
string message = string.Format("Unexpected NONCEOPT specified in the Federated authentication feature extension");
// Create errorToken token
TDSErrorToken errorToken = new TDSErrorToken(5672, 32, 87, message);
// Log response
TDSUtilities.Log(Arguments.Log, "Response", errorToken);
// Create DONE token
TDSDoneToken doneToken = new TDSDoneToken(TDSDoneTokenStatusType.Final | TDSDoneTokenStatusType.Error);
// Log response
TDSUtilities.Log(Arguments.Log, "Response", doneToken);
// Build a collection with a single message of two tokens
return new TDSMessageCollection(new TDSMessage(TDSMessageType.Response, errorToken, doneToken));
}
// We're good
return null;
}
