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package com.sun.enterprise.security.jauth;
/**
* This ClientAuthContext class manages AuthModules that may be used
* to secure requests made as a client. A caller typically uses this class
* in the following manner:
*
*
* - Retrieve an instance of this class via AuthConfig.getClientAuthContext.
*
- Invoke secureRequest.
*
* ClientAuthContext implementation invokes configured plug-in modules.
* Modules attach credentials to initial request object
* (for example, a username and password), and/or secure the request
* (for example, sign and encrypt the request).
* - Issue request.
*
- Receive response and pass it to validateResponse.
*
* ClientAuthContext implementation invokes configured plug-in modules.
* Modules verify or decrypt response as necessary.
* - The disposeSubject method may be invoked if necessary
* to clean up any authentication state in the Subject.
*
*
* An instance may reuse module instances it
* previously created. As a result a single module instance may be used
* to issue different requests as different clients.
* It is the module implementation's responsibility to properly
* store and restore any necessary state. A module that does not need
* to do so may remain completely stateless.
*
*
Instances of this class have custom logic to determine
* what modules to invoke, and in what order. In addition,
* this custom logic may control whether subsequent modules are invoked
* based on the success or failure of previously invoked modules.
*
*
The caller is responsible for passing in a state Map
* that can be used by underlying modules to save state across
* a sequence of calls from secureRequest
* to validateResponse to disposeSubject.
* The same Map instance must be passed to all methods in the call sequence.
* Furthermore, each call sequence should be passed its own unique
* shared state Map instance.
*
* @version %I%, %G%
* @see AuthConfig
* @see SOAPAuthParam
*/
public interface ClientAuthContext {
/**
* Secure a request message.
*
*
Attach authentication credentials to an initial request,
* sign/encrypt a request, or respond to a server challenge, for example.
*
*
This method invokes configured modules to secure the request.
*
* @param param an authentication parameter that encapsulates the
* client request and server response objects.
*
* @param subject the subject may be used by configured modules
* to obtain Principals and credentials necessary to
* secure the request, or null. If null, the module may
* use a CallbackHandler to obtain any information necessary
* to secure the request.
*
* @param sharedState a Map for modules to save state across
* a sequence of calls from secureRequest
* to validateResponse to disposeSubject.
*
* @exception AuthException if the operation failed.
*/
void secureRequest(AuthParam param,
javax.security.auth.Subject subject,
java.util.Map sharedState)
throws AuthException;
/**
* Validate received response.
*
*
Validation may include verifying signature in response,
* or decrypting response contents, for example.
*
*
This method invokes configured modules to validate the response.
*
* @param param an authentication parameter that encapsulates the
* client request and server response objects.
*
* @param subject the subject may be used by configured modules
* to store the Principals and credentials related
* to the identity validated in the response.
*
* @param sharedState a Map for modules to save state across
* a sequence of calls from secureRequest
* to validateResponse to disposeSubject.
*
* @exception AuthException if the operation failed.
*/
void validateResponse(AuthParam param,
javax.security.auth.Subject subject,
java.util.Map sharedState)
throws AuthException;
/**
* Dispose of the Subject
* (remove Principals or credentials from the Subject object
* that were stored during validateResponse).
*
*
This method invokes configured modules to dispose the Subject.
*
* @param subject the subject to be disposed.
*
* @param sharedState a Map for modules to save state across
* a sequence of calls from secureRequest
* to validateResponse to disposeSubject.
*
* @exception AuthException if the operation failed.
*/
void disposeSubject(javax.security.auth.Subject subject,
java.util.Map sharedState)
throws AuthException;
}