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package javax.security.enterprise.identitystore;
import javax.security.auth.message.module.ServerAuthModule;
import javax.security.enterprise.authentication.mechanism.http.HttpAuthenticationMechanism;
import javax.security.enterprise.credential.Credential;
/**
* IdentityStoreHandler is a mechanism for validating a caller's
* credentials, and accessing a caller's identity attributes, by consulting
* a set of one or more {@link IdentityStore}s.
*
* It is intended for use by an authentication mechanism, such as an
* {@link HttpAuthenticationMechanism} (JSR 375) or a {@link ServerAuthModule}
* (JSR 196/JASPIC).
*
* Beans should inject only this handler, and not {@link IdentityStore}
* directly, as multiple stores may exist.
*
* Implementations of JSR 375 must supply a default implementation of {@code IdentityStoreHandler}
* that behaves as described in the JSR 375 specification document.
* Applications do not need to supply an {@code IdentityStoreHandler}
* unless application-specific behavior is desired.
*/
public interface IdentityStoreHandler {
/**
* Validate the given {@link Credential} and return the identity and attributes
* of the caller it represents.
*
* Implementations of this method will typically invoke the {@code validate()}
* and {@code getCallerGroups()} methods of one or more {@link IdentityStore}s
* and return an aggregated result.
*
* Note that the {@link IdentityStore} may check for {@link IdentityStorePermission}
* if {@code getCallerGroups()} is called and a {@link SecurityManager} is configured.
* (The default built-in stores do perform this check; application-supplied stores
* may or may not.) An implementation of this method should therefore invoke
* {@code getCallerGroups()} in the context of a {@link java.security.PrivilegedAction},
* and arrange to be granted the appropriate {@link IdentityStorePermission} permission.
*
* @param credential The credential to validate.
* @return The validation result.
*/
CredentialValidationResult validate(Credential credential);
}