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DittoGatewayAuthenticationDirectiveFactory.java
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DittoGatewayAuthenticationDirectiveFactory.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.endpoints.directives.auth;
import java.util.ArrayList;
import java.util.Collection;
import java.util.concurrent.Executor;
import org.eclipse.ditto.gateway.service.security.authentication.AuthenticationChain;
import org.eclipse.ditto.gateway.service.security.authentication.AuthenticationFailureAggregator;
import org.eclipse.ditto.gateway.service.security.authentication.AuthenticationFailureAggregators;
import org.eclipse.ditto.gateway.service.security.authentication.AuthenticationProvider;
import org.eclipse.ditto.gateway.service.security.authentication.AuthenticationResult;
import org.eclipse.ditto.gateway.service.security.authentication.jwt.JwtAuthenticationFactory;
import org.eclipse.ditto.gateway.service.security.authentication.jwt.JwtAuthenticationProvider;
import org.eclipse.ditto.gateway.service.security.authentication.preauth.PreAuthenticatedAuthenticationProvider;
import org.eclipse.ditto.gateway.service.util.config.security.AuthenticationConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.mongodb.lang.Nullable;
import akka.actor.ActorSystem;
/**
* Ditto's default factory for building authentication directives.
*/
public final class DittoGatewayAuthenticationDirectiveFactory extends GatewayAuthenticationDirectiveFactory {
private static final Logger LOGGER = LoggerFactory.getLogger(DittoGatewayAuthenticationDirectiveFactory.class);
private static final String AUTHENTICATION_DISPATCHER_NAME = "authentication-dispatcher";
private final AuthenticationConfig authConfig;
private final Executor authenticationDispatcher;
@Nullable private GatewayAuthenticationDirective gatewayHttpAuthenticationDirective;
@Nullable private GatewayAuthenticationDirective gatewayWsAuthenticationDirective;
public DittoGatewayAuthenticationDirectiveFactory(final ActorSystem actorSystem) {
super(actorSystem);
authConfig = getAuthConfig(actorSystem);
authenticationDispatcher = actorSystem.dispatchers().lookup(AUTHENTICATION_DISPATCHER_NAME);
}
@Override
public GatewayAuthenticationDirective buildHttpAuthentication(
final JwtAuthenticationFactory jwtAuthenticationFactory) {
if (null == gatewayHttpAuthenticationDirective) {
final JwtAuthenticationProvider jwtHttpAuthenticationProvider =
JwtAuthenticationProvider.newInstance(jwtAuthenticationFactory.newJwtAuthenticationResultProvider(),
jwtAuthenticationFactory.getJwtValidator());
gatewayHttpAuthenticationDirective =
generateGatewayAuthenticationDirective(authConfig, jwtHttpAuthenticationProvider,
authenticationDispatcher);
}
return gatewayHttpAuthenticationDirective;
}
@Override
public GatewayAuthenticationDirective buildWsAuthentication(
final JwtAuthenticationFactory jwtAuthenticationFactory) {
if (null == gatewayWsAuthenticationDirective) {
final JwtAuthenticationProvider jwtWsAuthenticationProvider =
JwtAuthenticationProvider.newWsInstance(
jwtAuthenticationFactory.newJwtAuthenticationResultProvider(),
jwtAuthenticationFactory.getJwtValidator());
gatewayWsAuthenticationDirective =
generateGatewayAuthenticationDirective(authConfig, jwtWsAuthenticationProvider,
authenticationDispatcher);
}
return gatewayWsAuthenticationDirective;
}
private static GatewayAuthenticationDirective generateGatewayAuthenticationDirective(
final AuthenticationConfig authConfig,
final AuthenticationProvider<AuthenticationResult> jwtAuthenticationProvider,
final Executor authenticationDispatcher) {
final Collection<AuthenticationProvider<?>> authenticationProviders = new ArrayList<>();
if (authConfig.isPreAuthenticationEnabled()) {
LOGGER.info("Pre-authentication is enabled!");
authenticationProviders.add(PreAuthenticatedAuthenticationProvider.getInstance());
}
authenticationProviders.add(jwtAuthenticationProvider);
final AuthenticationFailureAggregator authenticationFailureAggregator =
AuthenticationFailureAggregators.getDefault();
final AuthenticationChain authenticationChain =
AuthenticationChain.getInstance(authenticationProviders, authenticationFailureAggregator,
authenticationDispatcher);
return new GatewayAuthenticationDirective(authenticationChain);
}
}