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- /*
- * SonarQube
- * Copyright (C) 2009-2020 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.server.user;
-
- import java.util.Collection;
- import java.util.Collections;
- import java.util.Optional;
- import org.sonar.db.permission.OrganizationPermission;
- import org.sonar.db.user.GroupDto;
-
- /**
- * Allow code to be executed with the highest privileges possible, as if executed by a {@link OrganizationPermission#ADMINISTER} account.
- * @since 4.3
- */
- public final class DoPrivileged {
-
- private DoPrivileged() {
- // Only static stuff
- }
-
- /**
- * Executes the task's <code>{@link Task#doPrivileged() doPrivileged}</code> method in a privileged environment.
- * @param task
- */
- public static void execute(Task task) {
- try {
- task.start();
- task.doPrivileged();
- } finally {
- task.stop();
- }
- }
-
- /**
- * Define a task that will be executed using the highest privileges available. The privileged section is restricted
- * to the execution of the {@link #doPrivileged()} method.
- */
- public abstract static class Task {
- private final ThreadLocalUserSession threadLocalUserSession;
- private UserSession oldUserSession;
-
- protected Task(ThreadLocalUserSession threadLocalUserSession) {
- this.threadLocalUserSession = threadLocalUserSession;
- }
-
- /**
- * Code placed in this method will be executed in a privileged environment.
- */
- protected abstract void doPrivileged();
-
- private static class PrivilegedUserSession extends AbstractUserSession {
- @Override
- public String getLogin() {
- return null;
- }
-
- @Override
- public String getUuid() {
- return null;
- }
-
- @Override
- public String getName() {
- return null;
- }
-
- @Override
- public Collection<GroupDto> getGroups() {
- return Collections.emptyList();
- }
-
- @Override
- public boolean isLoggedIn() {
- return false;
- }
-
- @Override
- public boolean isRoot() {
- return true;
- }
-
- @Override
- public Optional<IdentityProvider> getIdentityProvider() {
- return Optional.empty();
- }
-
- @Override
- public Optional<ExternalIdentity> getExternalIdentity() {
- return Optional.empty();
- }
-
- @Override
- protected boolean hasPermissionImpl(OrganizationPermission permission) {
- return true;
- }
-
- @Override
- protected Optional<String> componentUuidToProjectUuid(String componentUuid) {
- // always root so unused
- throw new UnsupportedOperationException();
- }
-
- @Override
- protected boolean hasProjectUuidPermission(String permission, String projectUuid) {
- return true;
- }
-
- @Override
- public boolean isSystemAdministrator() {
- return true;
- }
-
- }
-
- private void start() {
- oldUserSession = threadLocalUserSession.hasSession() ? threadLocalUserSession.get() : null;
- threadLocalUserSession.set(new PrivilegedUserSession());
- }
-
- private void stop() {
- threadLocalUserSession.unload();
- if (oldUserSession != null) {
- threadLocalUserSession.set(oldUserSession);
- }
- }
- }
- }
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