Package com.sun.enterprise.security.auth.realm.certificate

Class CertificateRealm

java.lang.Object

com.sun.enterprise.security.auth.realm.Realm

com.sun.enterprise.security.BaseRealm

com.sun.enterprise.security.auth.realm.IASRealm

com.sun.enterprise.security.auth.realm.certificate.CertificateRealm

All Implemented Interfaces:

Comparable

@Service
public final class CertificateRealm
extends IASRealm

Realm wrapper for supporting certificate authentication.

The certificate realm provides the security-service functionality needed to process a client-cert authentication. Since the SSL processing, and client certificate verification is done by NSS, no authentication is actually done by this realm. It only serves the purpose of being registered as the certificate handler realm and to service group membership requests during web container role checks.

There is no JAAS LoginModule corresponding to the certificate realm, therefore this realm does not require the jaas-context configuration parameter to be set. The purpose of a JAAS LoginModule is to implement the actual authentication processing, which for the case of this certificate realm is already done by the time execution gets to Java.

The certificate realm needs the following properties in its configuration: None.

The following optional attributes can also be specified:

• assign-groups - A comma-separated list of group names which will be assigned to all users who present a cryptographically valid certificate. Since groups are otherwise not supported by the cert realm, this allows grouping cert users for convenience.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CertificateRealm.AppContextCallback	A LoginModule for CertificateRealm can instantiate and pass a AppContextCallback to handle method of the passed CallbackHandler to retrieve the application name information.

Field Summary

Fields

Modifier and Type	Field	Description
static String	AUTH_TYPE

Fields inherited from class com.sun.enterprise.security.BaseRealm

JAAS_CONTEXT_PARAM, sm

Fields inherited from class com.sun.enterprise.security.auth.realm.Realm

_logger, groupMapper, PARAM_GROUP_MAPPING

Constructor Summary

Constructors

Constructor	Description
CertificateRealm()

Method Summary

Modifier and Type	Method	Description
void	authenticate(Subject subject, X500Principal principal)	Complete authentication of certificate user.
String	getAuthType()	Returns a short (preferably less than fifteen characters) description of the kind of authentication which is supported by this realm.
Enumeration	getGroupNames(String username)	Returns the name of all the groups that this user belongs to.
protected void	init(Properties props)	Initialize a realm with some properties.

Methods inherited from class com.sun.enterprise.security.BaseRealm

addUser, addUser, getAuthenticationHandler, getGroupNames, getUser, getUserNames, persist, refresh, removeUser, supportsUserManagement, updateUser, updateUser

Methods inherited from class com.sun.enterprise.security.auth.realm.Realm

addAssignGroups, compareTo, getDefaultDigestAlgorithm, getDefaultInstance, getDefaultRealm, getInstance, getInstance, getJAASContext, getMappedGroupNames, getName, getProperties, getProperty, getRealmNames, getRealmStatsProvier, instantiate, instantiate, instantiate, isValidRealm, isValidRealm, refresh, setDefaultRealm, setName, setProperty, toString, unloadInstance, unloadInstance, updateInstance, updateInstance

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

AUTH_TYPE

public static final String AUTH_TYPE

See Also:

Constant Field Values

Constructor Detail

CertificateRealm

public CertificateRealm()

Method Detail

init

protected void init(Properties props)
             throws BadRealmException,
                    NoSuchRealmException

Initialize a realm with some properties. This can be used when instantiating realms from their descriptions. This method is invoked from Realm during initialization.

Overrides:

init in class Realm

Parameters:

props - Initialization parameters used by this realm.

Throws:

BadRealmException - If the configuration parameters identify a corrupt realm.

NoSuchRealmException - If the configuration parameters specify a realm which doesn't exist.

getAuthType

public String getAuthType()

Returns a short (preferably less than fifteen characters) description of the kind of authentication which is supported by this realm.

Specified by:

getAuthType in class Realm

Returns:

Description of the kind of authentication that is directly supported by this realm.

getGroupNames

public Enumeration getGroupNames(String username)
                          throws NoSuchUserException,
                                 InvalidOperationException

Returns the name of all the groups that this user belongs to.

Specified by:

getGroupNames in class Realm

Parameters:

username - Name of the user in this realm whose group listing is needed.

Returns:

Enumeration of group names (strings).

Throws:

InvalidOperationException - thrown if the realm does not support this operation - e.g. Certificate realm does not support this operation.

NoSuchUserException

authenticate

public void authenticate(Subject subject,
                         X500Principal principal)

Complete authentication of certificate user.

As noted, the certificate realm does not do the actual authentication (signature and cert chain validation) for the user certificate, this is done earlier in NSS. This method simply sets up the security context for the user in order to properly complete the authentication processing.

If any groups have been assigned to cert-authenticated users through the assign-groups property these groups are added to the security context for the current user.

Parameters:

subject - The Subject object for the authentication request.

principal - The X500Principal object from the user certificate.