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Class Authenticator

java.lang.Object

com.sun.net.httpserver.Authenticator

Direct Known Subclasses:: BasicAuthenticator

public abstract class Authenticator extends Object

Authenticator represents an implementation of an HTTP authentication mechanism. Sub-classes provide implementations of specific mechanisms such as Digest or Basic auth. Instances are invoked to provide verification of the authentication information provided in all incoming requests. Note. This implies that any caching of credentials or other authentication information must be done outside of this class.

Nested Class Summary

Modifier and Type	Class	Description
`static class`	`Authenticator.Failure`	Indicates an authentication failure.
`static class`	`Authenticator.Result`	Base class for return type from `authenticate(HttpExchange)` method.
`static class`	`Authenticator.Retry`	Indicates an authentication must be retried.
`static class`	`Authenticator.Success`	Indicates an authentication has succeeded and the authenticated user principal can be acquired by calling `Authenticator.Success.getPrincipal()`.

Constructor Summary

Authenticator()

Modifier	Constructor	Description
`protected`	Constructor for subclasses to call.

Method Summary

Modifier and Type	Method	Description
`abstract Authenticator.Result`	`authenticate(HttpExchange exch)`	Called to authenticate each incoming request.

Methods declared in class java.lang.Object

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

Constructor Details

Authenticator

protected Authenticator()

Constructor for subclasses to call.

Method Details

authenticate

public abstract Authenticator.Result authenticate(HttpExchange exch)

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

Failure means the authentication has completed, but has failed due to invalid credentials.
Success means that the authentication has succeeded, and a Principal object representing the user can be retrieved by calling Authenticator.Success.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.

Parameters:: exch - the HttpExchange upon which authenticate is called
Returns:: the result

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https://docs.oracle.com/en/java/javase/21/docs/api/jdk.httpserver/com/sun/net/httpserver/Authenticator.html