/*
* This file is part of the QuickServer library
* Copyright (C) QuickServer.org
*
* Use, modification, copying and distribution of this software is subject to
* the terms and conditions of the GNU Lesser General Public License.
* You should have received a copy of the GNU LGP License along with this
* library; if not, you can download a copy from <http://www.quickserver.org/>.
*
* For questions, suggestions, bug-reports, enhancement-requests etc.
* visit http://www.quickserver.org
*
*/
package echoserver;
import org.quickserver.net.server.*;
import java.io.*;
import java.util.*;
import org.quickserver.net.AppException;
/**
* Needs ClientData
*/
public class EchoAuthenticatorHandler extends QuickAuthenticationHandler {
public AuthStatus askAuthentication(ClientHandler handler)
throws IOException, AppException {
Data data = (Data) handler.getClientData();
data.setLastAsked("U");
handler.sendClientMsg("User Name :");
return null;//no AuthStatus yet
}
public AuthStatus handleAuthentication(ClientHandler handler, String command)
throws IOException, AppException {
Data data = (Data)handler.getClientData();
if(data.getLastAsked().equals("U")) {
data.setUsername(command);
data.setLastAsked("P");
handler.sendClientMsg("Password :");
} else if(data.getLastAsked().equals("P")) {
data.setPassword(command.getBytes());
if(validate(handler, data.getUsername(), data.getPassword())) {
handler.sendClientMsg("Auth OK");
data.setPassword(null);
return AuthStatus.SUCCESS;
} else {
handler.sendClientMsg("Auth Failed");
data.setPassword(null);
return AuthStatus.FAILURE;
}
} else {
throw new AppException("Unknown LastAsked!");
}
return null;//no AuthStatus yet
}
/**
* This function is used to validate username and password.
* May be overridden to change username and/or password.
*/
protected static boolean validate(ClientHandler handler, String username, byte[] password) {
return Arrays.equals(password,username.getBytes());
}
}