org.apache.http.impl.client
Class TargetAuthenticationStrategy

java.lang.Object
  org.apache.http.impl.client.TargetAuthenticationStrategy

All Implemented Interfaces:

AuthenticationStrategy

@Contract(threading=IMMUTABLE)
public class TargetAuthenticationStrategy
extends Object

Default AuthenticationStrategy implementation for proxy host authentication.

Since:

4.2

Field Summary

static TargetAuthenticationStrategy

INSTANCE

Constructor Summary

TargetAuthenticationStrategy()

Method Summary

void	authFailed(HttpHost authhost, AuthScheme authScheme, HttpContext context) Callback invoked in case of unsuccessful authentication.
void	authSucceeded(HttpHost authhost, AuthScheme authScheme, HttpContext context) Callback invoked in case of successful authentication.
Map<String,Header>	getChallenges(HttpHost authhost, HttpResponse response, HttpContext context) Generates a map of challenge auth-scheme => Header entries.
boolean	isAuthenticationRequested(HttpHost authhost, HttpResponse response, HttpContext context) Determines if the given HTTP response response represents an authentication challenge that was sent back as a result of authentication failure.
protected boolean	isCachable(AuthScheme authScheme)
Queue<AuthOption>	select(Map<String,Header> challenges, HttpHost authhost, HttpResponse response, HttpContext context) Selects one authentication challenge out of all available and creates and generates AuthOption instance capable of processing that challenge.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final TargetAuthenticationStrategy INSTANCE

Constructor Detail

TargetAuthenticationStrategy

public TargetAuthenticationStrategy()

Method Detail

isAuthenticationRequested

public boolean isAuthenticationRequested(HttpHost authhost,
                                         HttpResponse response,
                                         HttpContext context)

Description copied from interface: AuthenticationStrategy

Determines if the given HTTP response response represents an authentication challenge that was sent back as a result of authentication failure.

Specified by:

isAuthenticationRequested in interface AuthenticationStrategy

Parameters:

authhost - authentication host.

response - HTTP response.

context - HTTP context.

Returns:

true if user authentication is required, false otherwise.

getChallenges

public Map<String,Header> getChallenges(HttpHost authhost,
                                        HttpResponse response,
                                        HttpContext context)
                                 throws MalformedChallengeException

Generates a map of challenge auth-scheme => Header entries.

Specified by:

getChallenges in interface AuthenticationStrategy

Parameters:

authhost - authentication host.

response - HTTP response.

context - HTTP context.

Returns:

map: key=lower-cased auth-scheme name, value=Header that contains the challenge

Throws:

MalformedChallengeException - if one of the authentication challenges is not valid or malformed.

select

public Queue<AuthOption> select(Map<String,Header> challenges,
                                HttpHost authhost,
                                HttpResponse response,
                                HttpContext context)
                         throws MalformedChallengeException

Description copied from interface: AuthenticationStrategy

Selects one authentication challenge out of all available and creates and generates AuthOption instance capable of processing that challenge.

Specified by:

select in interface AuthenticationStrategy

Parameters:

challenges - collection of challenges.

authhost - authentication host.

response - HTTP response.

context - HTTP context.

Returns:

authentication auth schemes that can be used for authentication. Can be empty.

Throws:

MalformedChallengeException - if one of the authentication challenges is not valid or malformed.

authSucceeded

public void authSucceeded(HttpHost authhost,
                          AuthScheme authScheme,
                          HttpContext context)

Description copied from interface: AuthenticationStrategy

Callback invoked in case of successful authentication.

Specified by:

authSucceeded in interface AuthenticationStrategy

Parameters:

authhost - authentication host.

authScheme - authentication scheme used.

context - HTTP context.

isCachable

protected boolean isCachable(AuthScheme authScheme)

authFailed

public void authFailed(HttpHost authhost,
                       AuthScheme authScheme,
                       HttpContext context)

Description copied from interface: AuthenticationStrategy

Callback invoked in case of unsuccessful authentication.

Specified by:

authFailed in interface AuthenticationStrategy

Parameters:

authhost - authentication host.

authScheme - authentication scheme used.

context - HTTP context.