/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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
*
* 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.apache.catalina.authenticator;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.security.Principal;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import javax.servlet.http.HttpServletRequest;
import org.apache.catalina.Session;
/**
* A class that represents entries in the cache of authenticated users.
* This is necessary to make it available to
* <code>AuthenticatorBase</code> subclasses that need it in order to perform
* reauthentications when SingleSignOn is in use.
*
* @author B Stansberry, based on work by Craig R. McClanahan
*
* @see SingleSignOn
* @see AuthenticatorBase#reauthenticateFromSSO
*/
public class SingleSignOnEntry implements Serializable {
private static final long serialVersionUID = 1L;
// ------------------------------------------------------ Instance Fields
protected String authType = null;
protected String password = null;
// Marked as transient so special handling can be applied to serialization
protected transient Principal principal = null;
protected ConcurrentMap<SingleSignOnSessionKey,SingleSignOnSessionKey> sessionKeys =
new ConcurrentHashMap<SingleSignOnSessionKey, SingleSignOnSessionKey>();
protected String username = null;
protected boolean canReauthenticate = false;
// --------------------------------------------------------- Constructors
/**
* Creates a new SingleSignOnEntry
*
* @param principal the <code>Principal</code> returned by the latest
* call to <code>Realm.authenticate</code>.
* @param authType the type of authenticator used (BASIC, CLIENT_CERT,
* DIGEST or FORM)
* @param username the username (if any) used for the authentication
* @param password the password (if any) used for the authentication
*/
public SingleSignOnEntry(Principal principal, String authType,
String username, String password) {
updateCredentials(principal, authType, username, password);
}
// ------------------------------------------------------- Package Methods
/**
* Adds a <code>Session</code> to the list of those associated with
* this SSO.
*
* @param sso The <code>SingleSignOn</code> valve that is managing
* the SSO session.
* @param session The <code>Session</code> being associated with the SSO.
*/
public void addSession(SingleSignOn sso, String ssoId, Session session) {
SingleSignOnSessionKey key = new SingleSignOnSessionKey(session);
SingleSignOnSessionKey currentKey = sessionKeys.putIfAbsent(key, key);
if (currentKey == null) {
// Session not previously added
session.addSessionListener(sso.getSessionListener(ssoId));
}
}
/**
* Removes the given <code>Session</code> from the list of those
* associated with this SSO.
*
* @param session the <code>Session</code> to remove.
*/
public void removeSession(Session session) {
SingleSignOnSessionKey key = new SingleSignOnSessionKey(session);
sessionKeys.remove(key);
}
/**
* Returns the HTTP Session identifiers associated with this SSO.
*
* @return The identifiers for the HTTP sessions that are current associated
* with this SSo entry
*/
public Set<SingleSignOnSessionKey> findSessions() {
return sessionKeys.keySet();
}
/**
* Gets the name of the authentication type originally used to authenticate
* the user associated with the SSO.
*
* @return "BASIC", "CLIENT_CERT", "DIGEST", "FORM" or "NONE"
*/
public String getAuthType() {
return this.authType;
}
/**
* Gets whether the authentication type associated with the original
* authentication supports reauthentication.
*
* @return <code>true</code> if <code>getAuthType</code> returns
* "BASIC" or "FORM", <code>false</code> otherwise.
*/
public boolean getCanReauthenticate() {
return this.canReauthenticate;
}
/**
* Gets the password credential (if any) associated with the SSO.
*
* @return the password credential associated with the SSO, or
* <code>null</code> if the original authentication type
* does not involve a password.
*/
public String getPassword() {
return this.password;
}
/**
* Gets the <code>Principal</code> that has been authenticated by the SSO.
*
* @return The Principal that was created by the authentication that
* triggered the creation of the SSO entry
*/
public Principal getPrincipal() {
return this.principal;
}
/**
* Gets the user name provided by the user as part of the authentication
* process.
*
* @return The user name that was authenticated as part of the
* authentication that triggered the creation of the SSO entry
*/
public String getUsername() {
return this.username;
}
/**
* Updates the SingleSignOnEntry to reflect the latest security
* information associated with the caller.
*
* @param principal the <code>Principal</code> returned by the latest
* call to <code>Realm.authenticate</code>.
* @param authType the type of authenticator used (BASIC, CLIENT_CERT,
* DIGEST or FORM)
* @param username the username (if any) used for the authentication
* @param password the password (if any) used for the authentication
*/
public synchronized void updateCredentials(Principal principal, String authType,
String username, String password) {
this.principal = principal;
this.authType = authType;
this.username = username;
this.password = password;
this.canReauthenticate = (HttpServletRequest.BASIC_AUTH.equals(authType) ||
HttpServletRequest.FORM_AUTH.equals(authType));
}
private void writeObject(ObjectOutputStream out) throws IOException {
out.defaultWriteObject();
if (principal instanceof Serializable) {
out.writeBoolean(true);
out.writeObject(principal);
} else {
out.writeBoolean(false);
}
}
private void readObject(ObjectInputStream in) throws IOException,
ClassNotFoundException {
in.defaultReadObject();
boolean hasPrincipal = in.readBoolean();
if (hasPrincipal) {
principal = (Principal) in.readObject();
}
}
}