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JwtSubjectIssuersConfig.java
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JwtSubjectIssuersConfig.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 java.util.Objects.requireNonNull;
import static org.eclipse.ditto.base.model.common.ConditionChecker.checkNotNull;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import javax.annotation.concurrent.Immutable;
import org.eclipse.ditto.gateway.service.util.config.security.OAuthConfig;
import org.eclipse.ditto.policies.model.SubjectIssuer;
/**
* Configuration for subject issuers.
*/
@Immutable
public final class JwtSubjectIssuersConfig {
private final String protocolPrefix;
private final Map<String, JwtSubjectIssuerConfig> subjectIssuerConfigMap;
/**
* Constructor.
*
* @param configItems the items (configurations for each subject issuer)
* @param protocol the protocol prefix of all URIs of OAuth endpoints.
*/
private JwtSubjectIssuersConfig(final Iterable<JwtSubjectIssuerConfig> configItems, final String protocol) {
protocolPrefix = protocol + "://";
requireNonNull(configItems);
final Map<String, JwtSubjectIssuerConfig> modifiableSubjectIssuerConfigMap = new LinkedHashMap<>();
configItems.forEach(configItem ->
addConfigToMap(configItem, modifiableSubjectIssuerConfigMap, protocolPrefix));
subjectIssuerConfigMap = Collections.unmodifiableMap(modifiableSubjectIssuerConfigMap);
}
public static JwtSubjectIssuersConfig fromJwtSubjectIssuerConfigs(
final Iterable<JwtSubjectIssuerConfig> configItems) {
return new JwtSubjectIssuersConfig(configItems,
(String) OAuthConfig.OAuthConfigValue.PROTOCOL.getDefaultValue());
}
public static JwtSubjectIssuersConfig fromOAuthConfig(final OAuthConfig config) {
final Set<JwtSubjectIssuerConfig> configItems =
// merge the default and extension config
Stream.concat(config.getOpenIdConnectIssuers().entrySet().stream(),
config.getOpenIdConnectIssuersExtension().entrySet().stream())
.map(entry -> new JwtSubjectIssuerConfig(entry.getKey(), entry.getValue().getIssuers(),
entry.getValue().getAuthorizationSubjectTemplates()))
.collect(Collectors.toSet());
return new JwtSubjectIssuersConfig(configItems, config.getProtocol());
}
private static void addConfigToMap(final JwtSubjectIssuerConfig config,
final Map<String, JwtSubjectIssuerConfig> map,
final String protocolPrefix) {
config.getIssuers()
.forEach(issuer -> {
map.put(issuer, config);
map.put(protocolPrefix + issuer, config);
});
}
public String getProtocolPrefix() {
return protocolPrefix;
}
/**
* Gets the configuration item for the given issuer.
*
* @param issuer the issuer
* @return the configuration for the given issuer, or an empty {@link java.util.Optional} if no configuration is provided
* for this issuer
*/
public Optional<JwtSubjectIssuerConfig> getConfigItem(final String issuer) {
return getConfigItemByIssuer(issuer)
.or(() -> Optional.ofNullable(subjectIssuerConfigMap.get(issuer)));
}
private Optional<JwtSubjectIssuerConfig> getConfigItemByIssuer(final String issuer) {
return subjectIssuerConfigMap.values()
.stream()
.filter(jwtSubjectIssuerConfig -> jwtSubjectIssuerConfig.getIssuers().stream()
.anyMatch(configuredIssuer -> configuredIssuer.equals(issuer) ||
protocolPrefix.concat(configuredIssuer).equals(issuer))
)
.findFirst();
}
/**
* Gets a collection of all configuration items.
*
* @return the configuration items
*/
public Collection<JwtSubjectIssuerConfig> getConfigItems() {
return subjectIssuerConfigMap.values();
}
/**
* Gets a collection of all configuration items associated to the given {@code SubjectIssuer}.
*
* @param subjectIssuer the issuer.
* @return the configuration items.
* @throws NullPointerException if {@code subjectIssuer} is {@code null}.
*/
public Collection<JwtSubjectIssuerConfig> getConfigItems(final SubjectIssuer subjectIssuer) {
checkNotNull(subjectIssuer);
return subjectIssuerConfigMap.values().stream()
.filter(jwtSubjectIssuerConfig -> jwtSubjectIssuerConfig.getSubjectIssuer().equals(subjectIssuer))
.toList();
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final JwtSubjectIssuersConfig that = (JwtSubjectIssuersConfig) o;
return Objects.equals(protocolPrefix, that.protocolPrefix) &&
Objects.equals(subjectIssuerConfigMap, that.subjectIssuerConfigMap);
}
@Override
public int hashCode() {
return Objects.hash(protocolPrefix, subjectIssuerConfigMap);
}
@Override
public String toString() {
return getClass().getSimpleName() +
"[protocolPrefix=" + protocolPrefix +
", subjectIssuerConfigMap=" + subjectIssuerConfigMap +
']';
}
}