Package org.apache.catalina.realm

This package contains Realm implementations for the various supported realm technologies for authenticating users and identifying their associated roles. The Realm that is associated with a web application's Context (or a hierarchically superior Container) is used to resolve authentication and role presence questions when a web application uses container managed security as described in the Servlet API Specification.

The implementations share a common base class that supports basic functionality for all of the standard Realm implementations.

Interface Summary

Interface	Description
X509UsernameRetriever	Provides an interface for retrieving a user name from an X509Certificate.

Class Summary

Class	Description
AuthenticatedUserRealm	This Realm is intended for use with Authenticator implementations (SSLAuthenticator, SpnegoAuthenticator) that authenticate the user as well as obtain the user credentials.
CombinedRealm	Realm implementation that contains one or more realms.
DataSourceRealm	Implementation of Realm that works with any JDBC JNDI DataSource.
DigestCredentialHandlerBase	Base implementation for the Tomcat provided CredentialHandlers.
GenericPrincipal	Generic implementation of java.security.Principal that is available for use by Realm implementations.
JAASCallbackHandler	Implementation of the JAAS CallbackHandler interface, used to negotiate delivery of the username and credentials that were specified to our constructor.
JAASMemoryLoginModule	Implementation of the JAAS LoginModule interface, primarily for use in testing JAASRealm.
JAASRealm	Implementation of Realm that authenticates users via the Java Authentication and Authorization Service (JAAS).
JNDIRealm	Implementation of Realm that works with a directory server accessed via the Java Naming and Directory Interface (JNDI) APIs.
JNDIRealm.JNDIConnection	Class holding the connection to the directory plus the associated non thread safe message formats.
JNDIRealm.User	A protected class representing a User
LockOutRealm	This class extends the CombinedRealm (hence it can wrap other Realms) to provide a user lock out mechanism if there are too many failed authentication attempts in a given period of time.
LockOutRealm.LockRecord
MemoryRealm	Simple implementation of Realm that reads an XML file to configure the valid users, passwords, and roles.
MemoryRuleSet	RuleSet for recognizing the users defined in the XML file processed by MemoryRealm.
MessageDigestCredentialHandler	This credential handler supports the following forms of stored passwords: encodedCredential - a hex encoded digest of the password digested using the configured digest {MD5}encodedCredential - a Base64 encoded MD5 digest of the password {SHA}encodedCredential - a Base64 encoded SHA1 digest of the password {SSHA}encodedCredential - 20 byte Base64 encoded SHA1 digest followed by variable length salt.
NestedCredentialHandler
NullRealm	Minimal Realm implementation that always returns null when an attempt is made to validate a user name and password.
RealmBase	Simple implementation of Realm that reads an XML file to configure the valid users, passwords, and roles.
RealmBase.AllRolesMode
SecretKeyCredentialHandler
UserDatabaseRealm	Implementation of Realm that is based on an implementation of UserDatabase made available through the JNDI resources configured for this instance of Catalina.
UserDatabaseRealm.UserDatabasePrincipal
X509SubjectDnRetriever	An X509UsernameRetriever that returns a certificate's entire SubjectDN as the username.