javax.security.auth.message.config.AuthConfigProvider Maven / Gradle / Ivy
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package javax.security.auth.message.config;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.message.AuthException;
/**
* This interface is implemented by objects that can be used to obtain
* authentication context configuration objects, that is,
* ClientAuthConfig or ServerAuthConfig objects.
*
* Authentication context configuration objects serve as sources of
* the authentication context objects, that is, ClientAuthContext or
* ServerAuthContext objects, for a specific message layer
* and messaging context.
*
*
Authentication context objects encapsulate the initialization,
* configuration, and invocation of authentication modules, that is,
* ClientAuthModule or ServerAuthModule objects, for
* a specific message exchange within a specific message layer and
* messaging context.
*
*
Callers do not directly operate on authentication modules.
* Instead, they rely on a ClientAuthContext or ServerAuthContext
* to manage the invocation of modules. A caller obtains an instance
* of ClientAuthContext or ServerAuthContext by calling the respective
* getAuthContext method on a ClientAuthConfig
* or ServerAuthConfig object obtained from an
* AuthConfigProvider.
*
*
The following represents a typical sequence of calls for obtaining
* a client authentication context object, and then using it to secure
* a request.
*
* - AuthConfigProvider provider;
*
- ClientAuthConfig config = provider.getClientAuthConfig(layer,appID,cbh);
*
- String authContextID = config.getAuthContextID(messageInfo);
*
- ClientAuthContext context = config.getAuthContext(authContextID,subject,properties);
*
- context.secureRequest(messageInfo,subject);
*
*
* Every implementation of this interface must offer a public,
* two argument constructor with the following signature:
*
*
* public AuthConfigProviderImpl(Map properties, AuthConfigFactory factory);
*
*
* where the properties argument may be null, and where all values and
* keys occurring in a non-null properties argument must be of type String.
* When the factory argument is not null, it indicates that the
* provider is to self-register at the factory by calling the following
* method on the factory:
*
*
* public String
* registerConfigProvider(AuthConfigProvider provider, String layer,
* String appContext, String description);
*
*
*
* @see ClientAuthContext
* @see ServerAuthContext
* @see AuthConfigFactory
*/
public interface AuthConfigProvider {
/**
* Get an instance of ClientAuthConfig from this provider.
*
* The implementation of this method returns a ClientAuthConfig
* instance that describes the configuration of ClientAuthModules
* at a given message layer, and for use in an identified application
* context.
*
* @param layer A String identifying the message layer
* for the returned ClientAuthConfig object.
* This argument must not be null.
*
* @param appContext A String that identifies the messaging context
* for the returned ClientAuthConfig object.
* This argument must not be null.
*
* @param handler A CallbackHandler to be passed to the ClientAuthModules
* encapsulated by ClientAuthContext objects derived from the
* returned ClientAuthConfig. This argument may be null,
* in which case the implementation may assign a default handler
* to the configuration.
* The CallbackHandler assigned to the configuration must support
* the Callback objects required to be supported by the profile
* of this specification being followed by the messaging runtime.
* The CallbackHandler instance must be initialized with any
* application context needed to process the required callbacks
* on behalf of the corresponding application.
*
* @return A ClientAuthConfig Object that describes the configuration
* of ClientAuthModules at the message layer and messaging context
* identified by the layer and appContext arguments.
* This method does not return null.
*
* @exception AuthException If this provider does not support the
* assignment of a default CallbackHandler to the returned
* ClientAuthConfig.
*
* @exception SecurityException If the caller does not have permission
* to retrieve the configuration.
*/
public ClientAuthConfig getClientAuthConfig
(String layer, String appContext, CallbackHandler handler)
throws AuthException;
/**
* Get an instance of ServerAuthConfig from this provider.
*
*
The implementation of this method returns a ServerAuthConfig
* instance that describes the configuration of ServerAuthModules
* at a given message layer, and for a particular application context.
*
* @param layer A String identifying the message layer
* for the returned ServerAuthConfig object.
* This argument must not be null.
*
* @param appContext A String that identifies the messaging context
* for the returned ServerAuthConfig object.
* This argument must not be null.
*
* @param handler A CallbackHandler to be passed to the ServerAuthModules
* encapsulated by ServerAuthContext objects derived from the
* returned ServerAuthConfig. This argument may be null,
* in which case the implementation may assign a default handler
* to the configuration.
* The CallbackHandler assigned to the configuration must support
* the Callback objects required to be supported by the profile
* of this specification being followed by the messaging runtime.
* The CallbackHandler instance must be initialized with any
* application context needed to process the required callbacks
* on behalf of the corresponding application.
*
* @return A ServerAuthConfig Object that describes the configuration
* of ServerAuthModules at a given message layer,
* and for a particular application context.
* This method does not return null.
*
* @exception AuthException If this provider does not support the
* assignment of a default CallbackHandler to the returned
* ServerAuthConfig.
*
* @exception SecurityException If the caller does not have permission
* to retrieve the configuration.
*/
public ServerAuthConfig getServerAuthConfig
(String layer, String appContext, CallbackHandler handler)
throws AuthException;
/**
* Causes a dynamic configuration provider to update its internal
* state such that any resulting change to its state is reflected in
* the corresponding authentication context configuration objects
* previously created by the provider within the current process context.
*
* @exception SecurityException If the caller does not have permission
* to refresh the provider, or if an error occurred during the
* refresh.
*/
public void refresh();
}