be.fedict.eid.applet.beta.service.AuthorizationLoginModule.java Source code

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Here is the source code for be.fedict.eid.applet.beta.service.AuthorizationLoginModule.java

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/*
 * eID Applet Project.
 * Copyright (C) 2009 FedICT.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version
 * 3.0 as published by the Free Software Foundation.
 *
 * This software 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 software; if not, see 
 * http://www.gnu.org/licenses/.
 */

package be.fedict.eid.applet.beta.service;

import java.security.acl.Group;
import java.util.Map;

import javax.security.auth.Subject;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.NameCallback;
import javax.security.auth.login.LoginException;
import javax.security.auth.spi.LoginModule;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * JAAS Login Module for assigning a principal JBoss Roles.
 * 
 * @author Frank Cornelis
 * 
 */
public class AuthorizationLoginModule implements LoginModule {

    private static final Log LOG = LogFactory.getLog(AuthorizationLoginModule.class);

    private Subject subject;

    private CallbackHandler callbackHandler;

    private Map<String, ?> sharedState;

    private Map<String, ?> options;

    private NamePrincipal principal;

    public void initialize(Subject subject, CallbackHandler callbackHandler, Map<String, ?> sharedState,
            Map<String, ?> options) {
        this.subject = subject;
        this.callbackHandler = callbackHandler;
        this.sharedState = sharedState;
        this.options = options;
    }

    public boolean login() throws LoginException {
        NameCallback nameCallback = new NameCallback("Username");
        Callback[] callbacks = new Callback[] { nameCallback };
        try {
            this.callbackHandler.handle(callbacks);
        } catch (Exception e) {
            throw new LoginException("JAAS callback error: " + e.getMessage());
        }
        String name = nameCallback.getName();
        this.principal = new NamePrincipal(name);
        LOG.debug("login: " + name);
        return true;
    }

    public boolean commit() throws LoginException {
        this.subject.getPrincipals().add(this.principal);
        /*
         * JBoss Roles
         */
        Group roleGroup = new SimpleGroup("Roles");
        NamePrincipal adminRole = new NamePrincipal("admin");
        roleGroup.addMember(adminRole);
        this.subject.getPrincipals().add(roleGroup);
        return true;
    }

    public boolean abort() throws LoginException {
        this.principal = null;
        this.subject.getPrincipals().clear();
        return true;
    }

    public boolean logout() throws LoginException {
        this.principal = null;
        this.subject.getPrincipals().clear();
        return true;
    }
}