org.apereo.portal.security.provider.JAASSecurityContext.java Source code

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Here is the source code for org.apereo.portal.security.provider.JAASSecurityContext.java

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/**
 * Licensed to Apereo under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Apereo licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License.  You may obtain a
 * copy of the License at the following location:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apereo.portal.security.provider;

import java.io.Serializable;

import javax.security.auth.login.LoginContext;
import javax.security.auth.login.LoginException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apereo.portal.security.IAdditionalDescriptor;
import org.apereo.portal.security.ISecurityContext;
import org.apereo.portal.security.PortalSecurityException;

/**
 * <p>This is an implementation of a SecurityContext that checks a user's
 * credentials using JAAS.
 *
 * @author Nathan Jacobs
 * @version $Revision$
 *
 */

class JAASSecurityContext extends ChainingSecurityContext implements ISecurityContext, Serializable {

    private static final Log log = LogFactory.getLog(JAASSecurityContext.class);

    private final int JAASSECURITYAUTHTYPE = 0xFF05;
    private IAdditionalDescriptor additionalDescriptor;

    JAASSecurityContext() {
        super();
    }

    public int getAuthType() {
        return this.JAASSECURITYAUTHTYPE;
    }

    public IAdditionalDescriptor getAdditionalDescriptor() {
        return additionalDescriptor;
    }

    public synchronized void authenticate() throws PortalSecurityException {
        this.isauth = false;

        if (this.myPrincipal.UID != null && this.myOpaqueCredentials.credentialstring != null) {

            try {
                // JAAS Stuff

                LoginContext lc = null;

                lc = new LoginContext("uPortal", new JAASInlineCallbackHandler(this.myPrincipal.UID,
                        (new String(this.myOpaqueCredentials.credentialstring)).toCharArray())); // could not come up w/ a better way to do this

                lc.login();
                additionalDescriptor = new JAASSubject(lc.getSubject());

                // the above will throw an exception if authentication does not succeed

                if (log.isInfoEnabled())
                    log.info("User " + this.myPrincipal.UID + " is authenticated");
                this.isauth = true;

            } catch (LoginException e) {
                if (log.isInfoEnabled())
                    log.info("User " + this.myPrincipal.UID + ": invalid password");
                if (log.isDebugEnabled())
                    log.debug("LoginException", e);
            }
        } else {
            log.error("Principal or OpaqueCredentials not initialized prior to authenticate");
        }

        // authenticate all subcontexts.
        super.authenticate();

        return;
    }
}