/*
* Copyright (C) 2012 eXo Platform SAS.
*
* 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.gatein.security.sso.spnego;
import javax.security.auth.login.LoginException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.exoplatform.container.ExoContainer;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.exoplatform.services.security.Authenticator;
import org.exoplatform.services.security.Identity;
import org.exoplatform.services.security.UsernameCredential;
import org.exoplatform.services.security.jaas.AbstractLoginModule;
public class SPNEGOSSOLoginModule extends AbstractLoginModule {
private static final Log log = ExoLogger.getLogger(SPNEGOSSOLoginModule.class);
public static final String OPTION_ENABLE_FALLBACK_FORM_AUTHENTICATION = "enableFormAuthentication";
@Override
protected Log getLogger() {
return log;
}
@Override
public boolean login() throws LoginException {
try {
ExoContainer container = getContainer();
HttpServletRequest servletRequest = SPNEGOSSOContext.getCurrentRequest();
if (servletRequest == null) {
log.debug("HttpServletRequest is null. SPNEGOLoginModule will be ignored.");
return false;
}
HttpSession session = servletRequest.getSession();
String username = (String)session.getAttribute("SPNEGO_PRINCIPAL");
if(username != null) {
establishSecurityContext(container, username);
if (log.isTraceEnabled()) {
log.trace("Successfully established security context for user " + username);
}
return true;
}
} catch (Exception ex) {
log.error("Exception when trying to login with SPNEGO", ex);
}
// Disable fallback to FORM authentication
if("false".equalsIgnoreCase((String)this.options.get(OPTION_ENABLE_FALLBACK_FORM_AUTHENTICATION))) {
throw new LoginException("FORM authentication was disabled by SPNEGO login module.");
}
return false;
}
@Override
public boolean commit() throws LoginException {
return true;
}
@Override
public boolean abort() throws LoginException {
return true;
}
@Override
public boolean logout() throws LoginException {
return true;
}
protected void establishSecurityContext(ExoContainer container, String username) throws Exception {
Authenticator authenticator = container.getComponentInstanceOfType(Authenticator.class);
if (authenticator == null) {
throw new LoginException("No Authenticator component found, check your configuration");
}
Identity identity = authenticator.createIdentity(username);
sharedState.put("exo.security.identity", identity);
sharedState.put("javax.security.auth.login.name", username);
subject.getPublicCredentials().add(new UsernameCredential(username));
}
}