org.apache.hadoop.security.authentication.server

Class AuthenticationToken

java.lang.Object

org.apache.hadoop.security.authentication.util.AuthToken

org.apache.hadoop.security.authentication.server.AuthenticationToken

All Implemented Interfaces:

Principal

public class AuthenticationToken
extends AuthToken

The AuthenticationToken contains information about an authenticated HTTP client and doubles as the Principal to be returned by authenticated HttpServletRequests

The token can be serialized/deserialized to and from a string as it is sent and received in HTTP client responses and requests as a HTTP cookie (this is done by the AuthenticationFilter).

Field Summary

Fields

Modifier and Type	Field and Description
static AuthenticationToken	ANONYMOUS Constant that identifies an anonymous request.

Constructor Summary

Constructors

Constructor and Description
AuthenticationToken(String userName, String principal, String type) Creates an authentication token.

Method Summary

Modifier and Type	Method and Description
boolean	isExpired() Returns true if the token has expired.
static AuthenticationToken	parse(String tokenStr) Parses a string into an authentication token.
void	setExpires(long expires) Sets the expiration of the token.

Methods inherited from class org.apache.hadoop.security.authentication.util.AuthToken

checkForIllegalArgument, getExpires, getName, getType, getUserName, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.security.Principal

equals, hashCode, implies

Field Detail

ANONYMOUS

public static final AuthenticationToken ANONYMOUS

Constant that identifies an anonymous request.

Constructor Detail

AuthenticationToken

public AuthenticationToken(String userName,
                           String principal,
                           String type)

Creates an authentication token.

Parameters:

userName - user name.

principal - principal (commonly matches the user name, with Kerberos is the full/long principal name while the userName is the short name).

type - the authentication mechanism name. (System.currentTimeMillis() + validityPeriod).

Method Detail

setExpires

public void setExpires(long expires)

Sets the expiration of the token.

Overrides:

setExpires in class AuthToken

Parameters:

expires - expiration time of the token in milliseconds since the epoch.

isExpired

public boolean isExpired()

Returns true if the token has expired.

Overrides:

isExpired in class AuthToken

Returns:

true if the token has expired.

parse

public static AuthenticationToken parse(String tokenStr)
                                 throws AuthenticationException

Parses a string into an authentication token.

Parameters:

tokenStr - string representation of a token.

Returns:

the parsed authentication token.

Throws:

AuthenticationException - thrown if the string representation could not be parsed into an authentication token.