/*
* Copyright 2000-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package com.sun.security.sasl.digest;
import java.util.Map;
import javax.security.sasl.*;
import javax.security.auth.callback.CallbackHandler;
import com.sun.security.sasl.util.PolicyUtils;
/**
* Client and server factory for DIGEST-MD5 SASL client/server mechanisms.
* See DigestMD5Client and DigestMD5Server for input requirements.
*
* @author Jonathan Bruce
* @author Rosanna Lee
*/
public final class FactoryImpl implements SaslClientFactory,
SaslServerFactory{
private static final String myMechs[] = { "DIGEST-MD5" };
private static final int DIGEST_MD5 = 0;
private static final int mechPolicies[] = {
PolicyUtils.NOPLAINTEXT|PolicyUtils.NOANONYMOUS};
/**
* Empty constructor.
*/
public FactoryImpl() {
}
/**
* Returns a new instance of the DIGEST-MD5 SASL client mechanism.
*
* @throws SaslException If there is an error creating the DigestMD5
* SASL client.
* @returns a new SaslClient ; otherwise null if unsuccessful.
*/
public SaslClient createSaslClient(String[] mechs,
String authorizationId, String protocol, String serverName,
Map<String,?> props, CallbackHandler cbh)
throws SaslException {
for (int i=0; i<mechs.length; i++) {
if (mechs[i].equals(myMechs[DIGEST_MD5]) &&
PolicyUtils.checkPolicy(mechPolicies[DIGEST_MD5], props)) {
if (cbh == null) {
throw new SaslException(
"Callback handler with support for RealmChoiceCallback, " +
"RealmCallback, NameCallback, and PasswordCallback " +
"required");
}
return new DigestMD5Client(authorizationId,
protocol, serverName, props, cbh);
}
}
return null;
}
/**
* Returns a new instance of the DIGEST-MD5 SASL server mechanism.
*
* @throws SaslException If there is an error creating the DigestMD5
* SASL server.
* @returns a new SaslServer ; otherwise null if unsuccessful.
*/
public SaslServer createSaslServer(String mech,
String protocol, String serverName, Map<String,?> props, CallbackHandler cbh)
throws SaslException {
if (mech.equals(myMechs[DIGEST_MD5]) &&
PolicyUtils.checkPolicy(mechPolicies[DIGEST_MD5], props)) {
if (cbh == null) {
throw new SaslException(
"Callback handler with support for AuthorizeCallback, "+
"RealmCallback, NameCallback, and PasswordCallback " +
"required");
}
return new DigestMD5Server(protocol, serverName, props, cbh);
}
return null;
}
/**
* Returns the authentication mechanisms that this factory can produce.
*
* @returns String[] {"DigestMD5"} if policies in env match those of this
* factory.
*/
public String[] getMechanismNames(Map<String,?> env) {
return PolicyUtils.filterMechs(myMechs, mechPolicies, env);
}
}
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