/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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.keycloak.adapters.spi;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
/**
* Maps external principal and SSO id to internal local http session id
*
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class InMemorySessionIdMapper implements SessionIdMapper {
ConcurrentHashMap<String, String> ssoToSession = new ConcurrentHashMap<>();
ConcurrentHashMap<String, String> sessionToSso = new ConcurrentHashMap<>();
ConcurrentHashMap<String, Set<String>> principalToSession = new ConcurrentHashMap<>();
ConcurrentHashMap<String, String> sessionToPrincipal = new ConcurrentHashMap<>();
@Override
public boolean hasSession(String id) {
return sessionToSso.containsKey(id) || sessionToPrincipal.containsKey(id);
}
@Override
public void clear() {
ssoToSession.clear();
sessionToSso.clear();
principalToSession.clear();
sessionToPrincipal.clear();
}
@Override
public Set<String> getUserSessions(String principal) {
Set<String> lookup = principalToSession.get(principal);
if (lookup == null) return null;
Set<String> copy = new HashSet<>();
copy.addAll(lookup);
return copy;
}
@Override
public String getSessionFromSSO(String sso) {
return ssoToSession.get(sso);
}
@Override
public void map(String sso, String principal, String session) {
if (sso != null) {
ssoToSession.put(sso, session);
sessionToSso.put(session, sso);
}
Set<String> userSessions = principalToSession.get(principal);
if (userSessions == null) {
final Set<String> tmp = Collections.synchronizedSet(new HashSet<String>());
userSessions = principalToSession.putIfAbsent(principal, tmp);
if (userSessions == null) {
userSessions = tmp;
}
}
userSessions.add(session);
sessionToPrincipal.put(session, principal);
}
@Override
public void removeSession(String session) {
String sso = sessionToSso.remove(session);
if (sso != null) {
ssoToSession.remove(sso);
}
String principal = sessionToPrincipal.remove(session);
if (principal != null) {
Set<String> sessions = principalToSession.get(principal);
sessions.remove(session);
if (sessions.isEmpty()) {
principalToSession.remove(principal, sessions);
}
}
}
}