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Authlete library for JAX-RS (Java)
/*
* Copyright (C) 2015-2024 Authlete, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific
* language governing permissions and limitations under the
* License.
*/
package com.authlete.jaxrs;
import java.io.Serializable;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import com.authlete.common.api.AuthleteApi;
import com.authlete.common.dto.RevocationResponse;
import com.authlete.common.dto.RevocationResponse.Action;
/**
* Handler for token revocation requests
* (RFC 7009).
*
*
* In an implementation of revocation endpoint, call {@link #handle(Params)}
* method and use the response as the response from the endpoint to the client
* application. {@code handle()} method calls Authlete's {@code /auth/revocation} API,
* receives a response from the API, and dispatches processing according to the
* {@code action} parameter in the response.
*
*
* @since 1.1
*
* @author Takahiko Kawasaki
*
* @see RFC 7009: OAuth 2.0 Token Revocation
*/
public class RevocationRequestHandler extends BaseHandler
{
/**
* Parameters passed to the {@link RevocationRequestHandler#handle(Params)}
* method.
*
* @since 2.79
*/
public static class Params implements Serializable
{
private static final long serialVersionUID = 1L;
private MultivaluedMap parameters;
private String authorization;
private String[] clientCertificatePath;
private String clientAttestation;
private String clientAttestationPop;
/**
* Get the request parameters of the revocation request.
*
* @return
* The request parameters.
*/
public MultivaluedMap getParameters()
{
return parameters;
}
/**
* Set the request parameters of the revocation request.
*
* @param parameters
* The request parameters.
*
* @return
* {@code this} object.
*/
public Params setParameters(MultivaluedMap parameters)
{
this.parameters = parameters;
return this;
}
/**
* Get the value of the {@code Authorization} header in the revocation
* request. A pair of client ID and client secret is embedded there when
* the client authentication method is {@code client_secret_basic}.
*
* @return
* The value of the {@code Authorization} header.
*/
public String getAuthorization()
{
return authorization;
}
/**
* Set the value of the {@code Authorization} header in the revocation
* request. A pair of client ID and client secret is embedded there when
* the client authentication method is {@code client_secret_basic}.
*
* @param authorization
* The value of the {@code Authorization} header.
*
* @return
* {@code this} object.
*/
public Params setAuthorization(String authorization)
{
this.authorization = authorization;
return this;
}
/**
* Get the path of the client's certificate, each in PEM format.
* The first item in the array is the client's certificate itself.
*
* @return
* The path of the client's certificate.
*
* @see RFC 8705: OAuth 2.0 Mutual-TLS Client Authentication and
* Certificate-Bound Access Tokens
*/
public String[] getClientCertificatePath()
{
return clientCertificatePath;
}
/**
* Set the path of the client's certificate, each in PEM format.
* The first item in the array is the client's certificate itself.
*
* @param path
* The path of the client's certificate.
*
* @return
* {@code this} object.
*
* @see RFC 8705: OAuth 2.0 Mutual-TLS Client Authentication and
* Certificate-Bound Access Tokens
*/
public Params setClientCertificatePath(String[] path)
{
this.clientCertificatePath = path;
return this;
}
/**
* Get the value of the {@code OAuth-Client-Attestation} HTTP header.
*
* @return
* The value of the {@code OAuth-Client-Attestation} HTTP header.
*
* @since Authlete 3.0
*
* @see OAuth 2.0 Attestation-Based Client Authentication
*/
public String getClientAttestation()
{
return clientAttestation;
}
/**
* Set the value of the {@code OAuth-Client-Attestation} HTTP header.
*
* @param jwt
* The value of the {@code OAuth-Client-Attestation} HTTP header.
*
* @return
* {@code this} object.
*
* @since Authlete 3.0
*
* @see OAuth 2.0 Attestation-Based Client Authentication
*/
public Params setClientAttestation(String jwt)
{
this.clientAttestation = jwt;
return this;
}
/**
* Get the value of the {@code OAuth-Client-Attestation-PoP} HTTP header.
*
* @return
* The value of the {@code OAuth-Client-Attestation-PoP} HTTP header.
*
* @since Authlete 3.0
*
* @see OAuth 2.0 Attestation-Based Client Authentication
*/
public String getClientAttestationPop()
{
return clientAttestationPop;
}
/**
* Set the value of the {@code OAuth-Client-Attestation-PoP} HTTP header.
*
* @param jwt
* The value of the {@code OAuth-Client-Attestation-PoP} HTTP header.
*
* @return
* {@code this} object.
*
* @since Authlete 3.0
*
* @see OAuth 2.0 Attestation-Based Client Authentication
*/
public Params setClientAttestationPop(String jwt)
{
this.clientAttestationPop = jwt;
return this;
}
}
/**
* The value for {@code WWW-Authenticate} header on 401 Unauthorized.
*/
private static final String CHALLENGE = "Basic realm=\"revocation\"";
/**
* Constructor with an implementation of {@link AuthleteApi} interface.
*
* @param api
* Implementation of {@link AuthleteApi} interface.
*/
public RevocationRequestHandler(AuthleteApi api)
{
super(api);
}
/**
* Handle a token revocation request (RFC 7009).
*
* @param parameters
* Request parameters of a token revocation request.
*
* @param authorization
* The value of {@code Authorization} header in the token revocation
* request. A client application may embed its pair of client ID and
* client secret in a token revocation request using Basic
* Authentication.
*
* @return
* A response that should be returned from the endpoint to the
* client application.
*
* @throws WebApplicationException
* An error occurred.
*/
public Response handle(MultivaluedMap parameters, String authorization) throws WebApplicationException
{
Params params = new Params()
.setParameters(parameters)
.setAuthorization(authorization)
;
return handle(params);
}
/**
* Handle a token revocation request.
*
* @param params
* Parameters for Authlete's {@code /auth/revocation} API.
*
* @return
* A response that should be returned from the endpoint to the
* client application.
*
* @throws WebApplicationException
* An error occurred.
*
* @since 2.79
*/
public Response handle(Params params) throws WebApplicationException
{
// The credential of the client application extracted from the
// Authorization header. If available, the first element is the
// client ID and the second element is the client secret.
String[] credential = HandlerUtility
.extractClientCredentialFromAuthorization(params.getAuthorization());
try
{
// Process the given parameters.
return process(params, credential[0], credential[1]);
}
catch (WebApplicationException e)
{
throw e;
}
catch (Throwable t)
{
// Unexpected error.
throw unexpected("Unexpected error in RevocationRequestHandler", t);
}
}
/**
* Process the parameters of the revocation request.
*/
private Response process(Params params, String clientId, String clientSecret)
{
// The client certificate.
String clientCertificate = HandlerUtility
.extractClientCertificate(params.getClientCertificatePath());
// The second and subsequent elements in the client certificate path.
String[] clientCertificatePath = HandlerUtility
.extractSubsequenceFromClientCertificatePath(params.getClientCertificatePath());
// Call Authlete's /api/auth/revocation API.
RevocationResponse response = getApiCaller().callRevocation(
params.getParameters(), clientId, clientSecret,
clientCertificate, clientCertificatePath,
params.getClientAttestation(), params.getClientAttestationPop());
// 'action' in the response denotes the next action which
// this service implementation should take.
Action action = response.getAction();
// The content of the response to the client application.
String content = response.getResponseContent();
// Dispatch according to the action.
switch (action)
{
case INVALID_CLIENT:
// 401 Unauthorized
return ResponseUtil.unauthorized(content, CHALLENGE);
case INTERNAL_SERVER_ERROR:
// 500 Internal Server Error
return ResponseUtil.internalServerError(content);
case BAD_REQUEST:
// 400 Bad Request
return ResponseUtil.badRequest(content);
case OK:
// 200 OK
return ResponseUtil.javaScript(content);
default:
// This never happens.
throw getApiCaller().unknownAction("/api/auth/revocation", action);
}
}
}
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