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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2016 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
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* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
// Portions Copyright [2016-2021] [Payara Foundation and/or its affiliates]
package com.sun.enterprise.security.web;
import org.apache.catalina.HttpRequest;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.Realm;
import org.apache.catalina.Request;
import org.apache.catalina.Response;
import org.apache.catalina.Session;
import org.apache.catalina.SessionEvent;
import org.apache.catalina.authenticator.Constants;
import org.apache.catalina.authenticator.SingleSignOn;
import org.apache.catalina.authenticator.SingleSignOnEntry;
import org.glassfish.web.LogFacade;
import jakarta.servlet.http.Cookie;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* A Valve that supports a "single sign on" user experience, where the security identity of a user who
* successfully authenticates to one web application is propogated to other web applications in the same security
* domain.
*
* @author Jyri Virkki (first implementation)
* @author Jean-Francois Arcand
*/
public class GlassFishSingleSignOn extends SingleSignOn
/**
* CR 6411114 (Lifecycle implementation moved to ValveBase) implements Lifecycle, SessionListener, Runnable,
* SingleSignOnMBean {
*/
// START CR 6411114
implements Runnable, SingleSignOnMBean {
// END CR 6411114
// ----------------------------------------------------- Instance Variables
/**
* The log used by this class.
*/
private static final Logger logger = LogFacade.getLogger();
/**
* The background thread.
*/
private Thread thread = null;
/**
* The background thread completion semaphore.
*/
private boolean threadDone = false;
/**
* The interval (in seconds) between checks for expired sessions.
*/
private int ssoReapInterval = 60;
/**
* Max idle time (in seconds) for SSO entries before being elegible for purging. A value less than zero indicates that
* SSO entries are supposed to never expire.
*/
private int ssoMaxInactive = 300;
// -------------------------------------------------------------- Monitoring
/**
* Number of cache hits
*/
private final AtomicInteger hitCount = new AtomicInteger(0);
/**
* Number of cache misses
*/
private final AtomicInteger missCount = new AtomicInteger(0);
// ------------------------------------------------------------- Properties
/**
* Return expire thread interval (seconds)
*/
public int getReapInterval() {
return this.ssoReapInterval;
}
/**
* Set expire thread interval (seconds)
*/
public void setReapInterval(int t) {
this.ssoReapInterval = t;
}
/**
* Return max idle time for SSO entries (seconds)
*/
public int getMaxInactive() {
return this.ssoMaxInactive;
}
/**
* Set max idle time for SSO entries (seconds)
*/
public void setMaxInactive(int t) {
this.ssoMaxInactive = t;
}
// ------------------------------------------------------ Lifecycle Methods
/**
* Prepare for the beginning of active use of the public methods of this component. This method should be called after
* configure(), and before any of the public methods of the component are utilized.
*
* @exception LifecycleException if this component detects a fatal error that prevents this component from being used
*/
@Override
public void start() throws LifecycleException {
// START CR 6411114
if (started) // Ignore multiple starts
return;
// END CR 6411114
super.start();
// Start the background reaper thread
threadStart();
}
/**
* Gracefully terminate the active use of the public methods of this component. This method should be the last one
* called on a given instance of this component.
*
* @exception LifecycleException if this component detects a fatal error that needs to be reported
*/
@Override
public void stop() throws LifecycleException {
/**
* CR 6411114 super.stop();
*/
// START CR 6411114
if (!started) // Ignore stop if not started
return;
// END CR 6411114
// Stop the background reaper thread
threadStop();
// START CR 6411114
super.stop();
// END CR 6411114
}
// ------------------------------------------------ SessionListener Methods
/**
* Acknowledge the occurrence of the specified event.
*
* @param event SessionEvent that has occurred
*/
@Override
public void sessionEvent(SessionEvent event) {
// We only care about session destroyed events
if (!Session.SESSION_DESTROYED_EVENT.equals(event.getType()))
return;
// Look up the single session id associated with this session (if any)
Session session = event.getSession();
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.SESSION_DESTROYED, session);
}
// S1AS8 6155481 END
String ssoId = session.getSsoId();
if (ssoId == null) {
return;
}
// Was the session destroyed as the result of a timeout?
// If so, we'll just remove the expired session from the
// SSO. If the session was logged out, we'll log out
// of all session associated with the SSO.
if (session.hasExpired()) {
removeSession(ssoId, session);
} else {
// The session was logged out.
// Deregister this single session id, invalidating
// associated sessions
deregister(ssoId);
}
}
// ---------------------------------------------------------- Valve Methods
/**
* Perform single-sign-on support processing for this request.
*
* @param request The servlet request we are processing
* @param response The servlet response we are creating
*
* @return the valve flag
*/
// START OF IASRI 4665318
@Override
public int invoke(final Request request, final Response response) {
// END OF IASRI 4665318
// If this is not an HTTP request and response, just pass them on
/*
* GlassFish 6386229 if (!(request instanceof HttpRequest) || !(response instanceof HttpResponse)) { // START OF IASRI
* 4665318 // context.invokeNext(request, response); // return; return INVOKE_NEXT; // END OF IASRI 4665318 }
*/
HttpServletRequest hreq = (HttpServletRequest) request.getRequest();
HttpServletResponse hres = (HttpServletResponse) response.getResponse();
request.removeNote(Constants.REQ_SSOID_NOTE);
request.removeNote(Constants.REQ_SSO_VERSION_NOTE);
// Has a valid user already been authenticated?
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.REQUEST_PROCESSED, hreq.getRequestURI());
}
if (hreq.getUserPrincipal() != null) {
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.PRINCIPAL_ALREADY_AUTHENTICATED, hreq.getUserPrincipal().getName());
}
// START OF IASRI 4665318
// context.invokeNext(request, response);
// return;
return INVOKE_NEXT;
// END OF IASRI 4665318
}
// Check for the single sign on cookie
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.CHECKING_SSO_COOKIE);
}
final Cookie[] cookies = hreq.getCookies();
if (cookies == null) {
return INVOKE_NEXT;
}
Cookie cookie = null;
Cookie versionCookie = null;
for (Cookie c : cookies) {
if (Constants.SINGLE_SIGN_ON_COOKIE.equals(c.getName())) {
cookie = c;
} else if (Constants.SINGLE_SIGN_ON_VERSION_COOKIE.equals(c.getName())) {
versionCookie = c;
}
if (cookie != null && versionCookie != null) {
break;
}
}
if (cookie == null) {
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.SSO_COOKIE_NOT_PRESENT);
}
// S1AS8 6155481 END
// START OF IASRI 4665318
// context.invokeNext(request, response);
// return;
return INVOKE_NEXT;
// END OF IASRI 4665318
}
// Get the realm associated with the app of this request.
// If there is no realm available, do not process SSO.
Realm realm = request.getContext().getRealm();
if (realm == null) {
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.NO_REALM_CONFIGURED);
}
// S1AS8 6155481 END
// START OF IASRI 4665318
// context.invokeNext(request, response);
// return;
return INVOKE_NEXT;
// END OF IASRI 4665318
}
String realmName = realm.getRealmName();
if (realmName == null) {
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.NO_REALM_CONFIGURED);
}
// S1AS8 6155481 END
// START OF IASRI 4665318
// context.invokeNext(request, response);
// return;
return INVOKE_NEXT;
// END OF IASRI 4665318
}
if (debug >= 1) {
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.APP_REALM);
}
}
// S1AS8 6155481 END
// Look up the cached Principal associated with this cookie value
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.CHECKING_CACHED_PRINCIPAL);
}
long version = 0;
if (isVersioningSupported() && versionCookie != null) {
version = Long.parseLong(versionCookie.getValue());
}
SingleSignOnEntry entry = lookup(cookie.getValue(), version);
if (entry != null) {
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.FOUND_CACHED_PRINCIPAL,
new Object[] { entry.getPrincipal().getName(), entry.getAuthType(), entry.getRealmName() });
}
// S1AS8 6155481 END
// only use this SSO identity if it was set in the same realm
if (entry.getRealmName().equals(realmName)) {
request.setNote(Constants.REQ_SSOID_NOTE, cookie.getValue());
((HttpRequest) request).setAuthType(entry.getAuthType());
((HttpRequest) request).setUserPrincipal(entry.getPrincipal());
// Touch the SSO entry access time
entry.setLastAccessTime(System.currentTimeMillis());
if (isVersioningSupported()) {
long ver = entry.incrementAndGetVersion();
request.setNote(Constants.REQ_SSO_VERSION_NOTE, Long.valueOf(ver));
}
// update hit atomic counter
hitCount.incrementAndGet();
} else {
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.IGNORING_SSO, realmName);
}
// consider this a cache miss, update atomic counter
missCount.incrementAndGet();
}
} else {
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.NO_CACHED_PRINCIPAL_FOUND);
}
cookie.setMaxAge(0);
hres.addCookie(cookie);
// update miss atomic counter
missCount.incrementAndGet();
}
// S1AS8 6155481 END
// Invoke the next Valve in our pipeline
// START OF IASRI 4665318
// context.invokeNext(request, response);
// return;
return INVOKE_NEXT;
// END OF IASRI 4665318
}
// -------------------------------------------------------- Package Methods
/**
* Deregister the specified single sign on identifier, and invalidate any associated sessions.
*
* @param ssoId Single sign on identifier to deregister
*/
protected void deregister(String ssoId) {
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.DEREGISTER_SSO);
}
// S1AS8 6155481 END
// Look up and remove the corresponding SingleSignOnEntry
final SingleSignOnEntry sso = this.cache.remove(ssoId);
if (sso == null) {
return;
}
// Expire any associated sessions
sso.expireSessions();
// NOTE: Clients may still possess the old single sign on cookie,
// but it will be removed on the next request since it is no longer
// in the cache
}
// ------------------------------------------------------ Protected Methods
/**
* Invalidate all SSO cache entries that have expired.
*/
private void processExpires() {
if (ssoMaxInactive < 0) {
// SSO entries are supposed to never expire
return;
}
long tooOld = System.currentTimeMillis() - ssoMaxInactive * 1000L;
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.SSO_EXPIRATION_STARTED, this.cache.size());
}
// S1AS8 6155481 END
final ArrayList removals = new ArrayList<>(this.cache.size() / 2);
// build list of removal targets
// Note that only those SSO entries which are NOT associated with
// any session are eligible for removal here.
// Currently no session association ever happens so this covers all
// SSO entries. However, this should be addressed separately.
try {
synchronized (cache) {
Iterator it = cache.keySet().iterator();
while (it.hasNext()) {
String key = it.next();
SingleSignOnEntry sso = (SingleSignOnEntry) cache.get(key);
if (sso.isEmpty() && sso.getLastAccessTime() < tooOld) {
removals.add(key);
}
}
}
int removalCount = removals.size();
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.SSO_CACHE_EXPIRE, removalCount);
}
// S1AS8 6155481 END
// deregister any eligible sso entries
for (final String removal : removals) {
// S1AS8 6155481 START
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.SSO_EXPRIRATION_REMOVING_ENTRY, removal);
}
deregister(removal);
}
// S1AS8 6155481 END
} catch (Throwable e) { // don't let thread die
logger.log(Level.WARNING, LogFacade.EXCEPTION_DURING_SSO_EXPIRATION, e);
}
}
/**
* Sleep for the duration specified by the ssoReapInterval property.
*/
private void threadSleep() {
try {
Thread.sleep(ssoReapInterval * 1000L);
} catch (InterruptedException e) {
;
}
}
/**
* Start the background thread that will periodically check for SSO timeouts.
*/
private void threadStart() {
if (thread != null)
return;
threadDone = false;
String threadName = "SingleSignOnExpiration";
thread = new Thread(this, threadName);
thread.setDaemon(true);
thread.start();
}
/**
* Stop the background thread that is periodically checking for SSO timeouts.
*/
private void threadStop() {
if (thread == null)
return;
threadDone = true;
thread.interrupt();
try {
thread.join();
} catch (InterruptedException e) {
;
}
thread = null;
}
// ------------------------------------------------------ Background Thread
/**
* The background thread that checks for SSO timeouts and shutdown.
*/
public void run() {
// Loop until the termination semaphore is set
while (!threadDone) {
threadSleep();
processExpires();
}
}
/**
* Remove a single Session from a SingleSignOn. Called when a session is timed out and no longer active.
*
* @param ssoId Single sign on identifier from which to remove the session.
* @param session the session to be removed.
*/
protected void removeSession(String ssoId, Session session) {
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, LogFacade.REMOVE_SESSION_FROM_SSO, new Object[] { session.toString(), ssoId });
}
// Get a reference to the SingleSignOn
SingleSignOnEntry entry = lookup(ssoId);
if (entry == null)
return;
// Remove the inactive session from SingleSignOnEntry
entry.removeSession(session);
// If there are not sessions left in the SingleSignOnEntry,
// deregister the entry.
if (entry.isEmpty()) {
deregister(ssoId);
}
}
// -------------------------------------------------- Monitoring Support
/**
* Gets the number of sessions participating in SSO
*
* @return Number of sessions participating in SSO
*/
public int getActiveSessionCount() {
return this.cache.size();
}
/**
* Gets the number of SSO cache hits
*
* @return Number of SSO cache hits
*/
public int getHitCount() {
return hitCount.intValue();
}
/**
* Gets the number of SSO cache misses
*
* @return Number of SSO cache misses
*/
public int getMissCount() {
return missCount.intValue();
}
}