org.apache.http.impl.client

Class AuthenticationStrategyImpl

java.lang.Object

org.apache.http.impl.client.AuthenticationStrategyImpl

All Implemented Interfaces:

AuthenticationStrategy

Direct Known Subclasses:

ProxyAuthenticationStrategy, TargetAuthenticationStrategy

@Contract(threading=IMMUTABLE)
abstract class AuthenticationStrategyImpl
extends java.lang.Object
implements AuthenticationStrategy

Field Summary

Fields

Modifier and Type	Field and Description
private int	challengeCode
private static java.util.List<java.lang.String>	DEFAULT_SCHEME_PRIORITY
private java.lang.String	headerName
private org.apache.commons.logging.Log	log

Constructor Summary

Constructors

Constructor and Description
AuthenticationStrategyImpl(int challengeCode, java.lang.String headerName)

Method Summary

Modifier and Type	Method and Description
void	authFailed(org.apache.http.HttpHost authhost, AuthScheme authScheme, org.apache.http.protocol.HttpContext context) Callback invoked in case of unsuccessful authentication.
void	authSucceeded(org.apache.http.HttpHost authhost, AuthScheme authScheme, org.apache.http.protocol.HttpContext context) Callback invoked in case of successful authentication.
java.util.Map<java.lang.String,org.apache.http.Header>	getChallenges(org.apache.http.HttpHost authhost, org.apache.http.HttpResponse response, org.apache.http.protocol.HttpContext context) Generates a map of challenge auth-scheme => Header entries.
(package private) abstract java.util.Collection<java.lang.String>	getPreferredAuthSchemes(RequestConfig config)
boolean	isAuthenticationRequested(org.apache.http.HttpHost authhost, org.apache.http.HttpResponse response, org.apache.http.protocol.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)
java.util.Queue<AuthOption>	select(java.util.Map<java.lang.String,org.apache.http.Header> challenges, org.apache.http.HttpHost authhost, org.apache.http.HttpResponse response, org.apache.http.protocol.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

log

private final org.apache.commons.logging.Log log

DEFAULT_SCHEME_PRIORITY

private static final java.util.List<java.lang.String> DEFAULT_SCHEME_PRIORITY

challengeCode

private final int challengeCode

headerName

private final java.lang.String headerName

Constructor Detail

AuthenticationStrategyImpl

AuthenticationStrategyImpl(int challengeCode,
                           java.lang.String headerName)

Parameters:

challengeCode - for example SC_PROXY_AUTHENTICATION_REQUIRED or SC_UNAUTHORIZED

headerName - for example "Proxy-Authenticate" or "WWW-Authenticate"

Method Detail

isAuthenticationRequested

public boolean isAuthenticationRequested(org.apache.http.HttpHost authhost,
                                         org.apache.http.HttpResponse response,
                                         org.apache.http.protocol.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 java.util.Map<java.lang.String,org.apache.http.Header> getChallenges(org.apache.http.HttpHost authhost,
                                                                            org.apache.http.HttpResponse response,
                                                                            org.apache.http.protocol.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.

getPreferredAuthSchemes

abstract java.util.Collection<java.lang.String> getPreferredAuthSchemes(RequestConfig config)

select

public java.util.Queue<AuthOption> select(java.util.Map<java.lang.String,org.apache.http.Header> challenges,
                                          org.apache.http.HttpHost authhost,
                                          org.apache.http.HttpResponse response,
                                          org.apache.http.protocol.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(org.apache.http.HttpHost authhost,
                          AuthScheme authScheme,
                          org.apache.http.protocol.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(org.apache.http.HttpHost authhost,
                       AuthScheme authScheme,
                       org.apache.http.protocol.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.