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JwtAuthorizationSubjectsProvider.java
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JwtAuthorizationSubjectsProvider.java
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/*
* Copyright (c) 2017 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.gateway.service.security.authentication.jwt;
import static org.eclipse.ditto.base.model.common.ConditionChecker.checkNotNull;
import java.util.List;
import org.eclipse.ditto.base.model.auth.AuthorizationSubject;
import org.eclipse.ditto.base.service.DittoExtensionPoint;
import org.eclipse.ditto.gateway.service.util.config.DittoGatewayConfig;
import org.eclipse.ditto.internal.utils.config.DefaultScopedConfig;
import org.eclipse.ditto.jwt.model.JsonWebToken;
import akka.actor.ActorSystem;
/**
* A provider for {@link AuthorizationSubject}s contained in a {@link JsonWebToken}.
*/
public interface JwtAuthorizationSubjectsProvider extends DittoExtensionPoint {
/**
* Returns the {@code AuthorizationSubjects} of the given {@code JsonWebToken}.
*
* @param jsonWebToken the token containing the authorization subjects.
* @return the authorization subjects.
* @throws NullPointerException if {@code jsonWebToken} is {@code null}.
*/
List<AuthorizationSubject> getAuthorizationSubjects(JsonWebToken jsonWebToken);
/**
* Loads the implementation of {@code JwtAuthorizationSubjectsProvider} which is configured for the {@code ActorSystem}.
*
* @param actorSystem the actorSystem in which the {@code JwtAuthorizationSubjectsProvider} should be loaded.
* @return the {@code JwtAuthorizationSubjectsProvider} implementation.
* @throws NullPointerException if {@code actorSystem} is {@code null}.
* @since 3.0.0
*/
static JwtAuthorizationSubjectsProvider get(final ActorSystem actorSystem) {
checkNotNull(actorSystem, "actorSystem");
final var implementation =
DittoGatewayConfig.of(DefaultScopedConfig.dittoScoped(actorSystem.settings().config()))
.getAuthenticationConfig()
.getOAuthConfig()
.getJwtAuthorizationSubjectsProvider();
return new ExtensionId<>(implementation, JwtAuthorizationSubjectsProvider.class).get(actorSystem);
}
}