com.sun.net.httpserver
Class BasicAuthenticator

java.lang.Object
  com.sun.net.httpserver.Authenticator
      com.sun.net.httpserver.BasicAuthenticator

public abstract class BasicAuthenticator
extends Authenticator

BasicAuthenticator provides an implementation of HTTP Basic authentication. It is an abstract class and must be extended to provide an implementation of checkCredentials(String,String) which is called to verify each incoming request.

Nested Class Summary

Nested classes/interfaces inherited from class com.sun.net.httpserver.Authenticator

Authenticator.Failure, Authenticator.Result, Authenticator.Retry, Authenticator.Success

Field Summary

protected String

realm

Constructor Summary

BasicAuthenticator(String realm)
Creates a BasicAuthenticator for the given HTTP realm

Method Summary

Authenticator.Result	authenticate(HttpExchange t) called to authenticate each incoming request.
abstract boolean	checkCredentials(String username, String password) called for each incoming request to verify the given name and password in the context of this Authenticator's realm.
String	getRealm() returns the realm this BasicAuthenticator was created with

Methods inherited from class java.lang.Object

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

Field Detail

realm

protected String realm

Constructor Detail

BasicAuthenticator

public BasicAuthenticator(String realm)

Creates a BasicAuthenticator for the given HTTP realm

Parameters:

realm - The HTTP Basic authentication realm

Throws:

NullPointerException - if the realm is an empty string

Method Detail

getRealm

public String getRealm()

returns the realm this BasicAuthenticator was created with

Returns:

the authenticator's realm string.

authenticate

public Authenticator.Result authenticate(HttpExchange t)

Description copied from class: Authenticator

called to authenticate each incoming request. The implementation must return a Failure, Success or Retry object as appropriate :-

Failure means the authentication has completed, but has failed due to invalid credentials.

Sucess means that the authentication has succeeded, and a Principal object representing the user can be retrieved by calling Sucess.getPrincipal() .

Retry means that another HTTP exchange is required. Any response headers needing to be sent back to the client are set in the given HttpExchange. The response code to be returned must be provided in the Retry object. Retry may occur multiple times.

Specified by:

authenticate in class Authenticator

checkCredentials

public abstract boolean checkCredentials(String username,
                                         String password)

called for each incoming request to verify the given name and password in the context of this Authenticator's realm. Any caching of credentials must be done by the implementation of this method

Parameters:

username - the username from the request

password - the password from the request

Returns:

true if the credentials are valid, false otherwise.