public override async Task ExecuteAsync(SmtpSession smtpSession, CancellationToken token)
{
string[] parts = Arguments.Split(new [] { ' ' }, 2);
if (parts == null || parts.Length == 0 || parts.Length > 2)
{
await smtpSession.SendReplyAsync(ReplyCode.InvalidArguments, "Expected mechanism and optional initial response", token);
return;
}
string mechanismName = parts[0];
IAuthenticationMechanism mechanism = smtpSession.ImplementationFactory.Authentication.Get(mechanismName);
if (mechanism == null)
{
await smtpSession.SendReplyAsync(ReplyCode.InvalidArguments, "Unknown mechanism", token);
return;
}
var authSession = mechanism.CreateSession(smtpSession);
UserData userData;
try
{
userData = await authSession.AuthenticateAsync(smtpSession.UserStore, token, false);
}
catch (ArgumentException)
{
await smtpSession.SendReplyAsync(ReplyCode.InvalidArguments, "Invalid arguments", token);
return;
}
smtpSession.AuthenticatedUser = userData;
await smtpSession.SendReplyAsync(ReplyCode.AuthenticationComplete, "Authentication unsuccessful", token);
}
