Interface Credentials

All Known Implementing Classes:

HtdigestCredentials, Oauth2Credentials, OtpCredentials, TokenCredentials, UsernamePasswordCredentials, WebAuthn4JCredentials

public interface Credentials

Abstract representation of a Credentials object. All implementations of this interface will define the required types and parameters for the specific implementation.

Author:

Paulo Lopes

Method Summary

Modifier and Type	Method	Description
default Credentials	applyHttpChallenge(String challenge)	Applies the HTTP Authorization challenge to this Credential instance.
default Credentials	applyHttpChallenge(String challenge, HttpMethod method, String uri)	Applies the HTTP Authorization challenge to this Credential instance.
default Credentials	applyHttpChallenge(String challenge, HttpMethod method, String uri, Integer nc, String cnonce)	Applies the HTTP Authorization challenge to this Credential instance.
default <V> void	checkValid(V arg)	Implementors should override this method to perform validation.
default String	toHttpAuthorization()	Encodes this credential as an HTTP Authorization https://tools.ietf.org/html/rfc7235.
JsonObject	toJson()	Simple interop to downcast back to JSON for backwards compatibility.

Method Details

checkValid

default <V> void checkValid(V arg)
                     throws CredentialValidationException

Implementors should override this method to perform validation. An argument is allowed to allow custom validation, for example, when given a configuration property, a specific property may be allowed to be null.

Type Parameters:

V - the generic type of the argument

Parameters:

arg - optional argument or null.

Throws:

CredentialValidationException - when the validation fails

toJson

JsonObject toJson()

Simple interop to downcast back to JSON for backwards compatibility.

Returns:

JSON representation of this credential.

applyHttpChallenge

default Credentials applyHttpChallenge(String challenge,
 HttpMethod method,
 String uri,
 Integer nc,
 String cnonce)
                                throws CredentialValidationException

Applies the HTTP Authorization challenge to this Credential instance. The internal state can change to reflect the extra properties the challenge conveys.

See https://tools.ietf.org/html/rfc7235 for more information.

Parameters:

challenge - the challenge is the WWW-Authenticate header response from a 401 request. Null challenges are allowed, and in this case, no verification will be performed, however it is up to the implementation to permit this.

method - The http method this response is responding.

uri - The http uri this response is responding.

nc - The client internal counter (optional).

cnonce - The client internal nonce (optional).

Returns:

fluent self.

Throws:

CredentialValidationException - if the challenge cannot be applicable.

applyHttpChallenge

default Credentials applyHttpChallenge(String challenge,
 HttpMethod method,
 String uri)
                                throws CredentialValidationException

Applies the HTTP Authorization challenge to this Credential instance. The internal state can change to reflect the extra properties the challenge conveys.

See https://tools.ietf.org/html/rfc7235 for more information.

Parameters:

challenge - the challenge is the WWW-Authenticate header response from a 401 request. Null challenges are allowed, and in this case, no verification will be performed, however it is up to the implementation to permit this.

method - The http method this response is responding.

uri - The http uri this response is responding.

Returns:

fluent self.

Throws:

CredentialValidationException - if the challenge cannot be applicable.

applyHttpChallenge

default Credentials applyHttpChallenge(String challenge)
                                throws CredentialValidationException

Applies the HTTP Authorization challenge to this Credential instance. The internal state can change to reflect the extra properties the challenge conveys.

See https://tools.ietf.org/html/rfc7235 for more information.

Parameters:

challenge - the challenge is the WWW-Authenticate header response from a 401 request. Null challenges are allowed, and in this case, no verification will be performed, however it is up to the implementation to permit this.

Returns:

fluent self.

Throws:

CredentialValidationException - if the challenge cannot be applicable.

toHttpAuthorization

default String toHttpAuthorization()

Encodes this credential as an HTTP Authorization https://tools.ietf.org/html/rfc7235.

Calls to this method, expect that applyHttpChallenge(String, HttpMethod, String, Integer, String) has been prior executed. For some Authentication schemes, this isn't a requirement but doing so ensures that the object is on the right state.

Returns:

HTTP header including scheme.

Throws:

UnsupportedOperationException - when the the credential object cannot be converted to a HTTP Authorization.