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/*
* SonarQube
* Copyright (C) 2009-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.auth.saml;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import org.sonar.api.server.ServerSide;
import org.sonar.api.server.authentication.UserIdentity;
import org.springframework.security.saml2.provider.service.authentication.Saml2AuthenticatedPrincipal;
import static java.util.stream.Collectors.toSet;
@ServerSide
public class PrincipalToUserIdentityConverter {
private final SamlSettings samlSettings;
public PrincipalToUserIdentityConverter(SamlSettings samlSettings) {
this.samlSettings = samlSettings;
}
UserIdentity convertToUserIdentity(Saml2AuthenticatedPrincipal principal) {
String login = getAttribute(principal, samlSettings.getUserLogin());
String name = getAttribute(principal, samlSettings.getUserName());
UserIdentity.Builder userIdentityBuilder = UserIdentity.builder()
.setProviderLogin(login)
.setName(name);
getEmail(principal).ifPresent(userIdentityBuilder::setEmail);
getGroups(principal).ifPresent(userIdentityBuilder::setGroups);
return userIdentityBuilder.build();
}
private Optional<String> getEmail(Saml2AuthenticatedPrincipal principal) {
return samlSettings.getUserEmail()
.map(principal::getFirstAttribute)
.map(Object::toString);
}
private Optional<Set<String>> getGroups(Saml2AuthenticatedPrincipal principal) {
return samlSettings.getGroupName()
.map(principal::getAttribute)
.map(this::toString)
.filter(set -> !set.isEmpty());
}
private Set<String> toString(List<Object> groups) {
return groups.stream()
.filter(Objects::nonNull)
.map(Object::toString)
.collect(toSet());
}
private String getAttribute(Saml2AuthenticatedPrincipal principal, String attribute) {
return Optional.ofNullable(principal.getFirstAttribute(attribute))
.map(Object::toString)
.orElseThrow(() -> new IllegalStateException("%s is missing".formatted(attribute)));
}
}
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