DefaultLoginHandler.java

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2008, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This 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 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, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.picketlink.identity.federation.web.handlers;

import java.io.IOException;
import java.net.URL;
import java.util.Properties;

import javax.security.auth.login.LoginException;

import org.picketlink.identity.federation.PicketLinkLogger;
import org.picketlink.identity.federation.PicketLinkLoggerFactory;
import org.picketlink.identity.federation.web.interfaces.ILoginHandler;

/**
 * Default LoginHandler that uses a properties file in the classpath called as users.properties whose format is
 * username=password
 *
 * @author Anil.Saldhana@redhat.com
 * @since Aug 18, 2009
 */
public class DefaultLoginHandler implements ILoginHandler {
    
    private static final PicketLinkLogger logger = PicketLinkLoggerFactory.getLogger();
    
    private static Properties props = new Properties();

    static {
        try {
            URL url = SecurityActions.loadResource(DefaultLoginHandler.class, "users.properties");
            if (url == null)
                throw new RuntimeException(logger.resourceNotFound("users.properties"));
            props.load(url.openStream());
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public boolean authenticate(String username, Object credential) throws LoginException {
        String pass = null;
        if (credential instanceof byte[]) {
            pass = new String((byte[]) credential);
        } else if (credential instanceof String) {
            pass = (String) credential;
        } else
            throw logger.unknowCredentialType(credential.getClass().getName());

        String storedPass = (String) props.get(username);
        return storedPass != null ? storedPass.equals(pass) : false;
    }

}