org.apache.hadoop.security.authentication.client

类 KerberosAuthenticator

java.lang.Object

org.apache.hadoop.security.authentication.client.KerberosAuthenticator

所有已实现的接口:

Authenticator

直接已知子类:

KerberosUgiAuthenticator

public class KerberosAuthenticator
extends Object
implements Authenticator

The KerberosAuthenticator implements the Kerberos SPNEGO authentication sequence.

It uses the default principal for the Kerberos cache (normally set via kinit).

It falls back to the PseudoAuthenticator if the HTTP endpoint does not trigger an SPNEGO authentication sequence.

字段概要

字段

限定符和类型	字段和说明
static String	AUTHORIZATION HTTP header used by the SPNEGO client endpoint during an authentication sequence.
static String	NEGOTIATE HTTP header prefix used by the SPNEGO client/server endpoints during an authentication sequence.
static String	WWW_AUTHENTICATE HTTP header used by the SPNEGO server endpoint during an authentication sequence.

构造器概要

构造器

构造器和说明
KerberosAuthenticator()

方法概要

方法

限定符和类型	方法和说明
void	authenticate(URL url, AuthenticatedURL.Token token) Performs SPNEGO authentication against the specified URL.
protected Authenticator	getFallBackAuthenticator() If the specified URL does not support SPNEGO authentication, a fallback Authenticator will be used.

从类继承的方法 java.lang.Object

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

字段详细资料

WWW_AUTHENTICATE

public static final String WWW_AUTHENTICATE

HTTP header used by the SPNEGO server endpoint during an authentication sequence.

另请参阅:

常量字段值

AUTHORIZATION

public static final String AUTHORIZATION

HTTP header used by the SPNEGO client endpoint during an authentication sequence.

另请参阅:

常量字段值

NEGOTIATE

public static final String NEGOTIATE

HTTP header prefix used by the SPNEGO client/server endpoints during an authentication sequence.

另请参阅:

常量字段值

构造器详细资料

KerberosAuthenticator

public KerberosAuthenticator()

方法详细资料

authenticate

public void authenticate(URL url,
                AuthenticatedURL.Token token)
                  throws IOException,
                         AuthenticationException

Performs SPNEGO authentication against the specified URL.

If a token is given it does a NOP and returns the given token.

If no token is given, it will perform the SPNEGO authentication sequence using an HTTP OPTIONS request.

指定者:

authenticate 在接口中 Authenticator

参数:

url - the URl to authenticate against.

token - the authentication token being used for the user.

抛出:

IOException - if an IO error occurred.

AuthenticationException - if an authentication error occurred.

getFallBackAuthenticator

protected Authenticator getFallBackAuthenticator()

If the specified URL does not support SPNEGO authentication, a fallback Authenticator will be used.

This implementation returns a PseudoAuthenticator.

返回:

the fallback Authenticator.