org.springframework.security.authentication

Class UsernamePasswordAuthenticationToken

java.lang.Object

org.springframework.security.authentication.AbstractAuthenticationToken

org.springframework.security.authentication.UsernamePasswordAuthenticationToken

All Implemented Interfaces:

Serializable, Principal, Authentication, CredentialsContainer

Direct Known Subclasses:

JaasAuthenticationToken

public class UsernamePasswordAuthenticationToken
extends AbstractAuthenticationToken

An Authentication implementation that is designed for simple presentation of a username and password.

The principal and credentials should be set with an Object that provides the respective property via its Object.toString() method. The simplest such Object to use is String.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
UsernamePasswordAuthenticationToken(Object principal, Object credentials) This constructor can be safely used by any code that wishes to create a UsernamePasswordAuthenticationToken, as the AbstractAuthenticationToken.isAuthenticated() will return false.
UsernamePasswordAuthenticationToken(Object principal, Object credentials, Collection<? extends GrantedAuthority> authorities) This constructor should only be used by AuthenticationManager or AuthenticationProvider implementations that are satisfied with producing a trusted (i.e.

Method Summary

Modifier and Type	Method and Description
void	eraseCredentials() Checks the credentials, principal and details objects, invoking the eraseCredentials method on any which implement CredentialsContainer.
Object	getCredentials() The credentials that prove the principal is correct.
Object	getPrincipal() The identity of the principal being authenticated.
void	setAuthenticated(boolean isAuthenticated) See Authentication.isAuthenticated() for a full description.

Methods inherited from class org.springframework.security.authentication.AbstractAuthenticationToken

equals, getAuthorities, getDetails, getName, hashCode, isAuthenticated, setDetails, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.security.Principal

implies

Constructor Detail

UsernamePasswordAuthenticationToken

public UsernamePasswordAuthenticationToken(Object principal,
                                           Object credentials)

This constructor can be safely used by any code that wishes to create a UsernamePasswordAuthenticationToken, as the AbstractAuthenticationToken.isAuthenticated() will return false.

UsernamePasswordAuthenticationToken

public UsernamePasswordAuthenticationToken(Object principal,
                                           Object credentials,
                                           Collection<? extends GrantedAuthority> authorities)

This constructor should only be used by AuthenticationManager or AuthenticationProvider implementations that are satisfied with producing a trusted (i.e. AbstractAuthenticationToken.isAuthenticated() = true) authentication token.

Parameters:

principal -

credentials -

authorities -

Method Detail

getCredentials

public Object getCredentials()

Description copied from interface: Authentication

The credentials that prove the principal is correct. This is usually a password, but could be anything relevant to the AuthenticationManager. Callers are expected to populate the credentials.

Returns:

the credentials that prove the identity of the Principal

getPrincipal

public Object getPrincipal()

Description copied from interface: Authentication

The identity of the principal being authenticated. In the case of an authentication request with username and password, this would be the username. Callers are expected to populate the principal for an authentication request.

The AuthenticationManager implementation will often return an Authentication containing richer information as the principal for use by the application. Many of the authentication providers will create a UserDetails object as the principal.

Returns:

the Principal being authenticated or the authenticated principal after authentication.

setAuthenticated

public void setAuthenticated(boolean isAuthenticated)
                      throws IllegalArgumentException

Description copied from interface: Authentication

See Authentication.isAuthenticated() for a full description.

Implementations should always allow this method to be called with a false parameter, as this is used by various classes to specify the authentication token should not be trusted. If an implementation wishes to reject an invocation with a true parameter (which would indicate the authentication token is trusted - a potential security risk) the implementation should throw an IllegalArgumentException.

Specified by:

setAuthenticated in interface Authentication

Overrides:

setAuthenticated in class AbstractAuthenticationToken

Parameters:

isAuthenticated - true if the token should be trusted (which may result in an exception) or false if the token should not be trusted

Throws:

IllegalArgumentException - if an attempt to make the authentication token trusted (by passing true as the argument) is rejected due to the implementation being immutable or implementing its own alternative approach to Authentication.isAuthenticated()

eraseCredentials

public void eraseCredentials()

Description copied from class: AbstractAuthenticationToken

Checks the credentials, principal and details objects, invoking the eraseCredentials method on any which implement CredentialsContainer.

Specified by:

eraseCredentials in interface CredentialsContainer

Overrides:

eraseCredentials in class AbstractAuthenticationToken