/*
* 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.jboss.web.tomcat.security.authenticators;
import java.io.IOException;
import java.security.Principal;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.catalina.Session;
import org.apache.catalina.authenticator.Constants;
import org.apache.catalina.authenticator.FormAuthenticator;
import org.apache.catalina.connector.Request;
import org.apache.catalina.deploy.LoginConfig;
import org.apache.tomcat.util.buf.CharChunk;
import org.apache.tomcat.util.buf.MessageBytes;
import org.jboss.logging.Logger;
import org.jboss.web.tomcat.security.ExtendedRealm;
//$Id: JASPIFormAuthenticator.java 97697 2009-12-10 15:49:13Z remy.maucherat@jboss.com $
/**
* Form Authenticator that delegates to an extended Realm
* @author <a href="mailto:Anil.Saldhana@jboss.org">Anil Saldhana</a>
* @since May 24, 2006
* @version $Revision: 97697 $
*/
public class JASPIFormAuthenticator extends FormAuthenticator
{
private static Logger log = Logger.getLogger(JASPIFormAuthenticator.class);
public JASPIFormAuthenticator()
{
}
/**
* @see FormAuthenticator#authenticate(org.apache.catalina.connector.Request,
* org.apache.catalina.connector.Response, org.apache.catalina.deploy.LoginConfig)
*/
public boolean authenticate(Request request, HttpServletResponse response,
LoginConfig config) throws IOException
{
//References to objects we will need later
Session session = null;
// Have we already authenticated someone?
Principal principal = request.getUserPrincipal();
String ssoId = (String) request.getNote(Constants.REQ_SSOID_NOTE);
if (principal != null) {
if (log.isDebugEnabled())
log.debug("Already authenticated '" +
principal.getName() + "'");
// Associate the session with any existing SSO session
if (ssoId != null)
associate(ssoId, request.getSessionInternal(true));
return (true);
}
// Is there an SSO session against which we can try to reauthenticate?
if (ssoId != null) {
if (log.isDebugEnabled())
log.debug("SSO Id " + ssoId + " set; attempting " +
"reauthentication");
// Try to reauthenticate using data cached by SSO. If this fails,
// either the original SSO logon was of DIGEST or SSL (which
// we can't reauthenticate ourselves because there is no
// cached username and password), or the realm denied
// the user's reauthentication for some reason.
// In either case we have to prompt the user for a logon */
if (reauthenticateFromSSO(ssoId, request))
return true;
}
// Have we authenticated this user before but have caching disabled?
if (!cache) {
session = request.getSessionInternal(true);
if (log.isDebugEnabled())
log.debug("Checking for reauthenticate in session " + session);
String username =
(String) session.getNote(Constants.SESS_USERNAME_NOTE);
String password =
(String) session.getNote(Constants.SESS_PASSWORD_NOTE);
if ((username != null) && (password != null)) {
if (log.isDebugEnabled())
log.debug("Reauthenticating username '" + username + "'");
// principal =
// context.getRealm().authenticate(username, password);
ExtendedRealm realm = (ExtendedRealm)context.getRealm();
try
{
principal = realm.authenticate(request, response, config);
}
catch(Exception e)
{
log.error("Exception in realm authenticate:",e);
}
if (principal != null) {
session.setNote(Constants.FORM_PRINCIPAL_NOTE, principal);
if (!matchRequest(request)) {
register(request, response, principal,
HttpServletRequest.FORM_AUTH,
username, password);
return (true);
}
}
if (log.isDebugEnabled())
log.debug("Reauthentication failed, proceed normally");
}
}
// Is this the re-submit of the original request URI after successful
// authentication? If so, forward the *original* request instead.
if (matchRequest(request)) {
session = request.getSessionInternal(true);
if (log.isDebugEnabled())
log.debug("Restore request from session '"
+ session.getIdInternal()
+ "'");
principal = (Principal)
session.getNote(Constants.FORM_PRINCIPAL_NOTE);
register(request, response, principal, HttpServletRequest.FORM_AUTH,
(String) session.getNote(Constants.SESS_USERNAME_NOTE),
(String) session.getNote(Constants.SESS_PASSWORD_NOTE));
// If we're caching principals we no longer need the username
// and password in the session, so remove them
if (cache) {
session.removeNote(Constants.SESS_USERNAME_NOTE);
session.removeNote(Constants.SESS_PASSWORD_NOTE);
}
if (restoreRequest(request, session)) {
if (log.isDebugEnabled())
log.debug("Proceed to restored request");
return (true);
} else {
if (log.isDebugEnabled())
log.debug("Restore of original request failed");
response.sendError(HttpServletResponse.SC_BAD_REQUEST);
return (false);
}
}
// Acquire references to objects we will need to evaluate
MessageBytes uriMB = MessageBytes.newInstance();
CharChunk uriCC = uriMB.getCharChunk();
uriCC.setLimit(-1);
String contextPath = request.getContextPath();
String requestURI = request.getDecodedRequestURI();
// Is this the action request from the login page?
boolean loginAction =
requestURI.startsWith(contextPath) &&
requestURI.endsWith(Constants.FORM_ACTION);
// No -- Save this request and redirect to the form login page
if (!loginAction) {
session = request.getSessionInternal(true);
if (log.isDebugEnabled())
log.debug("Save request in session '" + session.getIdInternal() + "'");
try {
saveRequest(request, session);
} catch (IOException ioe) {
log.debug("Request body too big to save during authentication");
response.sendError(HttpServletResponse.SC_FORBIDDEN,
sm.getString("authenticator.requestBodyTooBig"));
return (false);
}
forwardToLoginPage(request, response, config);
return (false);
}
// Yes -- Validate the specified credentials and redirect
// to the error page if they are not correct
ExtendedRealm realm = (ExtendedRealm)context.getRealm();
if (characterEncoding != null) {
request.setCharacterEncoding(characterEncoding);
}
String username = request.getParameter(Constants.FORM_USERNAME);
String password = request.getParameter(Constants.FORM_PASSWORD);
if (log.isDebugEnabled())
log.debug("Authenticating username '" + username + "'");
//principal = realm.authenticate(username, password);
try
{
principal = realm.authenticate(request, response, config);
}
catch(Exception e)
{
log.error("Exception in realm authenticate:",e);
}
if (principal == null) {
forwardToErrorPage(request, response, config);
return (false);
}
if (log.isDebugEnabled())
log.debug("Authentication of '" + username + "' was successful");
if (session == null)
session = request.getSessionInternal(false);
if (session == null) {
if (containerLog.isDebugEnabled())
containerLog.debug
("User took so long to log on the session expired");
response.sendError(HttpServletResponse.SC_REQUEST_TIMEOUT,
sm.getString("authenticator.sessionExpired"));
return (false);
}
// Save the authenticated Principal in our session
session.setNote(Constants.FORM_PRINCIPAL_NOTE, principal);
// Save the username and password as well
session.setNote(Constants.SESS_USERNAME_NOTE, username);
session.setNote(Constants.SESS_PASSWORD_NOTE, password);
// Redirect the user to the original request URI (which will cause
// the original request to be restored)
requestURI = savedRequestURL(session);
if (log.isDebugEnabled())
log.debug("Redirecting to original '" + requestURI + "'");
if (requestURI == null)
response.sendError(HttpServletResponse.SC_BAD_REQUEST,
sm.getString("authenticator.formlogin"));
else
response.sendRedirect(response.encodeRedirectURL(requestURI));
return (false);
}
}