Class SingleSignOn
- java.lang.Object
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- org.apache.catalina.util.LifecycleBase
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- org.apache.catalina.util.LifecycleMBeanBase
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- org.apache.catalina.valves.ValveBase
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- org.apache.catalina.authenticator.SingleSignOn
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- All Implemented Interfaces:
javax.management.MBeanRegistration,Contained,JmxEnabled,Lifecycle,Valve
- Direct Known Subclasses:
ClusterSingleSignOn
public class SingleSignOn extends ValveBase
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 propagated to other web applications in the same security domain. For successful use, the following requirements must be met:- This Valve must be configured on the Container that represents a
virtual host (typically an implementation of
Host). - The
Realmthat contains the shared user and role information must be configured on the same Container (or a higher one), and not overridden at the web application level. - The web applications themselves must use one of the standard
Authenticators found in the
org.apache.catalina.authenticatorpackage.
- Author:
- Craig R. McClanahan
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Nested Class Summary
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Nested classes/interfaces inherited from interface org.apache.catalina.Lifecycle
Lifecycle.SingleUse
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Field Summary
Fields Modifier and Type Field Description protected java.util.Map<java.lang.String,SingleSignOnEntry>cacheThe cache of SingleSignOnEntry instances for authenticated Principals, keyed by the cookie value that is used to select them.-
Fields inherited from class org.apache.catalina.valves.ValveBase
asyncSupported, container, containerLog, next
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Fields inherited from interface org.apache.catalina.Lifecycle
AFTER_DESTROY_EVENT, AFTER_INIT_EVENT, AFTER_START_EVENT, AFTER_STOP_EVENT, BEFORE_DESTROY_EVENT, BEFORE_INIT_EVENT, BEFORE_START_EVENT, BEFORE_STOP_EVENT, CONFIGURE_START_EVENT, CONFIGURE_STOP_EVENT, PERIODIC_EVENT, START_EVENT, STOP_EVENT
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Constructor Summary
Constructors Constructor Description SingleSignOn()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected booleanassociate(java.lang.String ssoId, Session session)Associate the specified single sign on identifier with the specified Session.protected voidderegister(java.lang.String ssoId)Deregister the specified single sign on identifier, and invalidate any associated sessions.java.lang.StringgetCookieDomain()Returns the optional cookie domain.java.lang.StringgetCookieName()booleangetRequireReauthentication()Gets whether each request needs to be reauthenticated (by an Authenticator downstream in the pipeline) to the securityRealm, or if this Valve can itself bind security info to the request based on the presence of a valid SSO entry without rechecking with theRealm.protected SessionListenergetSessionListener(java.lang.String ssoId)voidinvoke(Request request, Response response)Perform single-sign-on support processing for this request.protected booleanreauthenticate(java.lang.String ssoId, Realm realm, Request request)Attempts reauthentication to the givenRealmusing the credentials associated with the single sign-on session identified by argumentssoId.protected voidregister(java.lang.String ssoId, java.security.Principal principal, java.lang.String authType, java.lang.String username, java.lang.String password)Register the specified Principal as being associated with the specified value for the single sign on identifier.protected voidremoveSession(java.lang.String ssoId, Session session)Remove a single Session from a SingleSignOn.voidsessionDestroyed(java.lang.String ssoId, Session session)Process a session destroyed event by removing references to that session from the caches and - if the session destruction is the result of a logout - destroy the associated SSO session.voidsetCookieDomain(java.lang.String cookieDomain)Sets the domain to be used for sso cookies.voidsetCookieName(java.lang.String cookieName)Set the cookie name that will be used for the SSO cookie.voidsetRequireReauthentication(boolean required)Sets whether each request needs to be reauthenticated (by an Authenticator downstream in the pipeline) to the securityRealm, or if this Valve can itself bind security info to the request, based on the presence of a valid SSO entry, without rechecking with theRealm.protected voidstartInternal()Start this component and implement the requirements ofLifecycleBase.startInternal().protected voidstopInternal()Stop this component and implement the requirements ofLifecycleBase.stopInternal().protected booleanupdate(java.lang.String ssoId, java.security.Principal principal, java.lang.String authType, java.lang.String username, java.lang.String password)Updates anySingleSignOnEntryfound under keyssoIdwith the given authentication data.-
Methods inherited from class org.apache.catalina.valves.ValveBase
backgroundProcess, getContainer, getDomainInternal, getNext, getObjectNameKeyProperties, initInternal, isAsyncSupported, setAsyncSupported, setContainer, setNext, toString
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Methods inherited from class org.apache.catalina.util.LifecycleMBeanBase
destroyInternal, getDomain, getObjectName, postDeregister, postRegister, preDeregister, preRegister, register, setDomain, unregister, unregister
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Methods inherited from class org.apache.catalina.util.LifecycleBase
addLifecycleListener, destroy, findLifecycleListeners, fireLifecycleEvent, getState, getStateName, getThrowOnFailure, init, removeLifecycleListener, setState, setState, setThrowOnFailure, start, stop
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Field Detail
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cache
protected java.util.Map<java.lang.String,SingleSignOnEntry> cache
The cache of SingleSignOnEntry instances for authenticated Principals, keyed by the cookie value that is used to select them.
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Method Detail
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getCookieDomain
public java.lang.String getCookieDomain()
Returns the optional cookie domain. May return null.- Returns:
- The cookie domain
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setCookieDomain
public void setCookieDomain(java.lang.String cookieDomain)
Sets the domain to be used for sso cookies.- Parameters:
cookieDomain- cookie domain name
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getCookieName
public java.lang.String getCookieName()
- Returns:
- the cookie name
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setCookieName
public void setCookieName(java.lang.String cookieName)
Set the cookie name that will be used for the SSO cookie.- Parameters:
cookieName- the cookieName to set
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getRequireReauthentication
public boolean getRequireReauthentication()
Gets whether each request needs to be reauthenticated (by an Authenticator downstream in the pipeline) to the securityRealm, or if this Valve can itself bind security info to the request based on the presence of a valid SSO entry without rechecking with theRealm.- Returns:
trueif it is required that a downstream Authenticator reauthenticate each request before calls toHttpServletRequest.setUserPrincipal()andHttpServletRequest.setAuthType()are made;falseif theValvecan itself make those calls relying on the presence of a valid SingleSignOn entry associated with the request.- See Also:
setRequireReauthentication(boolean)
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setRequireReauthentication
public void setRequireReauthentication(boolean required)
Sets whether each request needs to be reauthenticated (by an Authenticator downstream in the pipeline) to the securityRealm, or if this Valve can itself bind security info to the request, based on the presence of a valid SSO entry, without rechecking with theRealm.If this property is
false(the default), thisValvewill bind a UserPrincipal and AuthType to the request if a valid SSO entry is associated with the request. It will not notify the securityRealmof the incoming request.This property should be set to
trueif the overall server configuration requires that theRealmreauthenticate each request thread. An example of such a configuration would be one where theRealmimplementation provides security for both a web tier and an associated EJB tier, and needs to set security credentials on each request thread in order to support EJB access.If this property is set to
true, this Valve will set flags on the request notifying the downstream Authenticator that the request is associated with an SSO session. The Authenticator will then call itsreauthenticateFromSSOmethod to attempt to reauthenticate the request to theRealm, using any credentials that were cached with this Valve.The default value of this property is
false, in order to maintain backward compatibility with previous versions of Tomcat.- Parameters:
required-trueif it is required that a downstream Authenticator reauthenticate each request before calls toHttpServletRequest.setUserPrincipal()andHttpServletRequest.setAuthType()are made;falseif theValvecan itself make those calls relying on the presence of a valid SingleSignOn entry associated with the request.- See Also:
AuthenticatorBase.reauthenticateFromSSO(java.lang.String, org.apache.catalina.connector.Request)
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invoke
public void invoke(Request request, Response response) throws java.io.IOException, ServletException
Perform single-sign-on support processing for this request.- Parameters:
request- The servlet request we are processingresponse- The servlet response we are creating- Throws:
java.io.IOException- if an input/output error occursServletException- if a servlet error occurs
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sessionDestroyed
public void sessionDestroyed(java.lang.String ssoId, Session session)Process a session destroyed event by removing references to that session from the caches and - if the session destruction is the result of a logout - destroy the associated SSO session.- Parameters:
ssoId- The ID of the SSO session which which the destroyed session was associatedsession- The session that has been destroyed
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associate
protected boolean associate(java.lang.String ssoId, Session session)Associate the specified single sign on identifier with the specified Session.- Parameters:
ssoId- Single sign on identifiersession- Session to be associated- Returns:
trueif the session was associated to the given SSO session, otherwisefalse
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deregister
protected void deregister(java.lang.String ssoId)
Deregister the specified single sign on identifier, and invalidate any associated sessions.- Parameters:
ssoId- Single sign on identifier to deregister
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reauthenticate
protected boolean reauthenticate(java.lang.String ssoId, Realm realm, Request request)Attempts reauthentication to the givenRealmusing the credentials associated with the single sign-on session identified by argumentssoId.If reauthentication is successful, the
Principaland authorization type associated with the SSO session will be bound to the givenRequestobject via calls toRequest.setAuthType()andRequest.setUserPrincipal()- Parameters:
ssoId- identifier of SingleSignOn session with which the caller is associatedrealm- Realm implementation against which the caller is to be authenticatedrequest- the request that needs to be authenticated- Returns:
trueif reauthentication was successful,falseotherwise.
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register
protected void register(java.lang.String ssoId, java.security.Principal principal, java.lang.String authType, java.lang.String username, java.lang.String password)Register the specified Principal as being associated with the specified value for the single sign on identifier.- Parameters:
ssoId- Single sign on identifier to registerprincipal- Associated user principal that is identifiedauthType- Authentication type used to authenticate this user principalusername- Username used to authenticate this userpassword- Password used to authenticate this user
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update
protected boolean update(java.lang.String ssoId, java.security.Principal principal, java.lang.String authType, java.lang.String username, java.lang.String password)Updates anySingleSignOnEntryfound under keyssoIdwith the given authentication data.The purpose of this method is to allow an SSO entry that was established without a username/password combination (i.e. established following DIGEST or CLIENT_CERT authentication) to be updated with a username and password if one becomes available through a subsequent BASIC or FORM authentication. The SSO entry will then be usable for reauthentication.
NOTE: Only updates the SSO entry if a call to
SingleSignOnEntry.getCanReauthenticate()returnsfalse; otherwise, it is assumed that the SSO entry already has sufficient information to allow reauthentication and that no update is needed.- Parameters:
ssoId- identifier of Single sign to be updatedprincipal- thePrincipalreturned by the latest call toRealm.authenticate.authType- the type of authenticator used (BASIC, CLIENT_CERT, DIGEST or FORM)username- the username (if any) used for the authenticationpassword- the password (if any) used for the authentication- Returns:
trueif the credentials were updated, otherwisefalse
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removeSession
protected void removeSession(java.lang.String ssoId, Session session)Remove a single Session from a SingleSignOn. Called when a session is timed out and no longer active.- Parameters:
ssoId- Single sign on identifier from which to remove the session.session- the session to be removed.
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getSessionListener
protected SessionListener getSessionListener(java.lang.String ssoId)
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startInternal
protected void startInternal() throws LifecycleExceptionDescription copied from class:ValveBaseStart this component and implement the requirements ofLifecycleBase.startInternal().- Overrides:
startInternalin classValveBase- Throws:
LifecycleException- if this component detects a fatal error that prevents this component from being used
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stopInternal
protected void stopInternal() throws LifecycleExceptionDescription copied from class:ValveBaseStop this component and implement the requirements ofLifecycleBase.stopInternal().- Overrides:
stopInternalin classValveBase- Throws:
LifecycleException- if this component detects a fatal error that prevents this component from being used
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