/// <summary>
/// Final step client side.
/// </summary>
/// <param name="serverFrame"></param>
/// <param name="clientName"></param>
/// <returns></returns>
public HandshakeFrame ClientConfirmExtensions(HandshakeFrame serverFrame, string clientName)
{
var extensions = _registry.GetRequiredForHandshake().ToList();
var required = new List <HandshakeExtension>(extensions);
foreach (var extension in serverFrame.RequiredExtensions)
{
if (!extensions.Contains(extension))
{
extensions.Add(extension);
}
if (!required.Contains(extension))
{
required.Add(extension);
}
}
//do not use optional extensions.
// currently only use them to expose all extensions to the remote end point.
//foreach (var extension in _registry.GetOptionalForHandshake())
//{
// if (!extensions.Contains(extension))
// extensions.Add(extension);
//}
//foreach (var extension in serverFrame.OptionalExtensions)
//{
// if (!extensions.Contains(extension) && _registry.Exists(extension.Name))
// extensions.Add(extension);
//}
//var optional = _registry.GetOptionalForHandshake().Union(serverFrame.OptionalExtensions).Distinct();
_chosenExtensions = _registry.GetAll(extensions.Select(x => x.Name));
var negotiatedRequired = new List <HandshakeExtension>();
foreach (var handshakeExtension in required)
{
var serverExtension =
serverFrame.RequiredExtensions.FirstOrDefault(x => x.IsSameExtension(handshakeExtension));
var clientExtension =
_registry.Get(handshakeExtension.Name);
var extension = clientExtension.Negotiate(serverExtension);
negotiatedRequired.Add(extension);
}
return(new HandshakeFrame
{
Identity = clientName,
VersionMajor = SharpMessagingServer.Major,
VersionMinor = SharpMessagingServer.Minor,
OptionalExtensions = new HandshakeExtension[0],
RequiredExtensions = required.ToArray()
});
}
