{
sess.sendResponse("503 Refusing any other AUTH command.");
return;
}
AuthenticationHandlerFactory authFactory = sess.getServer().getAuthenticationHandlerFactory();
if (authFactory == null)
{
sess.sendResponse("502 Authentication not supported");
return;
}
AuthenticationHandler authHandler = authFactory.create();
String[] args = this.getArgs(commandString);
// Let's check the command syntax
if (args.length < 2)
{
sess.sendResponse("501 Syntax: " + VERB + " mechanism [initial-response]");
return;
}
// Let's check if we support the required authentication mechanism
String mechanism = args[1];
if (!authFactory.getAuthenticationMechanisms().contains(mechanism.toUpperCase(Locale.ENGLISH)))
{
sess.sendResponse("504 The requested authentication mechanism is not supported");
return;
}
// OK, let's go trough the authentication process.