/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
*
* Licensed 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
*
* 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.acegisecurity.adapters.cas;
import org.acegisecurity.Authentication;
import org.acegisecurity.AuthenticationException;
import org.acegisecurity.AuthenticationManager;
import org.acegisecurity.providers.UsernamePasswordAuthenticationToken;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.InitializingBean;
import javax.servlet.ServletRequest;
/**
* Provides actual CAS authentication by delegation to an <code>AuthenticationManager</code>.<P>Do not use this
* class directly. Instead configure CAS to use the {@link CasPasswordHandlerProxy}.</p>
*
* @author Ben Alex
* @version $Id: CasPasswordHandler.java 1496 2006-05-23 13:38:33Z benalex $
*/
public final class CasPasswordHandler implements InitializingBean {
//~ Static fields/initializers =====================================================================================
private static final Log logger = LogFactory.getLog(CasPasswordHandler.class);
//~ Instance fields ================================================================================================
private AuthenticationManager authenticationManager;
//~ Methods ========================================================================================================
public void afterPropertiesSet() throws Exception {
if (this.authenticationManager == null) {
throw new IllegalArgumentException("An AuthenticationManager is required");
}
}
/**
* Called by <code>CasPasswordHandlerProxy</code> for individual authentication requests.<P>Delegates to
* the configured <code>AuthenticationManager</code>.</p>
*
* @param servletRequest as provided by CAS
* @param username provided to CAS
* @param password provided to CAS
*
* @return whether authentication was successful or not
*/
public boolean authenticate(ServletRequest servletRequest, String username, String password) {
if ((username == null) || "".equals(username)) {
return false;
}
if (password == null) {
password = "";
}
Authentication request = new UsernamePasswordAuthenticationToken(username.toString(), password.toString());
Authentication response = null;
try {
response = authenticationManager.authenticate(request);
} catch (AuthenticationException failed) {
if (logger.isDebugEnabled()) {
logger.debug("Authentication request for user: " + username + " failed: " + failed.toString());
}
return false;
}
if (logger.isDebugEnabled()) {
logger.debug("Authentication request for user: " + username + " successful");
}
return true;
}
public AuthenticationManager getAuthenticationManager() {
return authenticationManager;
}
public void setAuthenticationManager(AuthenticationManager authenticationManager) {
this.authenticationManager = authenticationManager;
}
}