/**
* Copyright (C) 2011 Adam Hocek. Contact: ahocek@gmail.com, Udaya K Ghattamaneni.
* Contact: ghattamaneni.uday@gmail.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package edu.maristit.xmppwebchat;
import java.io.IOException;
import java.util.HashMap;
import javax.security.auth.callback.CallbackHandler;
import javax.security.sasl.Sasl;
import org.jivesoftware.smack.SASLAuthentication;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.sasl.SASLMechanism;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.util.Base64;
public class MySASLDigestMD5Mechanism extends SASLMechanism {
public MySASLDigestMD5Mechanism(SASLAuthentication saslAuthentication) {
super(saslAuthentication);
}
@Override
protected void authenticate()
throws IOException, XMPPException {
String mechanisms[] = {
getName()
};
java.util.Map props = new HashMap();
sc = Sasl.createSaslClient(mechanisms, null, "xmpp", hostname, props, this);
super.authenticate();
}
@Override
public void authenticate(String username, String host, String password)
throws IOException, XMPPException {
authenticationId = username;
this.password = password;
hostname = host;
String mechanisms[] = {
getName()
};
java.util.Map props = new HashMap();
sc = Sasl.createSaslClient(mechanisms, null, "xmpp", host, props, this);
super.authenticate();
}
@Override
public void authenticate(String username, String host, CallbackHandler cbh)
throws IOException, XMPPException {
String mechanisms[] = {
getName()
};
java.util.Map props = new HashMap();
sc = Sasl.createSaslClient(mechanisms, null, "xmpp", host, props, cbh);
super.authenticate();
}
@Override
protected String getName() {
return "DIGEST-MD5";
}
@Override
public void challengeReceived(String challenge)
throws IOException {
byte response[];
if (challenge != null) {
response = sc.evaluateChallenge(Base64.decode(challenge));
} else {
response = sc.evaluateChallenge(new byte[0]);
}
Packet responseStanza;
if (response == null) {
responseStanza = new Response();
} else {
responseStanza = new Response(Base64.encodeBytes(response, Base64.DONT_BREAK_LINES));
}
getSASLAuthentication().send(responseStanza);
}
}