content: /*
   * Copyright 2016 Red Hat, Inc. and/or its affiliates
   * and other contributors as indicated by the @author tags.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package de.ahus1.keycloak.jetty.core;
  
  import jakarta.servlet.http.HttpSession;
  import org.eclipse.jetty.server.Request;
  import org.jboss.logging.Logger;
  import org.keycloak.KeycloakPrincipal;
  import org.keycloak.KeycloakSecurityContext;
  import org.keycloak.adapters.*;
  import org.keycloak.adapters.spi.AdapterSessionStore;
  
  /**
   * Handle storage of token info in HTTP Session. Per-request object
   *
   * @author <a href="mailto:mposolda@redhat.com">Marek Posolda</a>
   */
  public class JettySessionTokenStore implements AdapterTokenStore {
  
      private static final Logger log = Logger.getLogger(JettySessionTokenStore.class);
  
      private Request request;
      protected KeycloakDeployment deployment;
      protected AdapterSessionStore sessionStore;
  
      public JettySessionTokenStore(Request request, KeycloakDeployment deployment, AdapterSessionStore sessionStore) {
          this.request = request;
          this.deployment = deployment;
          this.sessionStore = sessionStore;
      }
  
      @Override
      public void checkCurrentToken() {
          if (request.getSession(false) == null) return;
          RefreshableKeycloakSecurityContext session = (RefreshableKeycloakSecurityContext) request.getSession().getAttribute(KeycloakSecurityContext.class.getName());
          if (session == null) return;
  
          // just in case session got serialized
          if (session.getDeployment() == null) session.setCurrentRequestInfo(deployment, this);
  
          if (session.isActive() && !session.getDeployment().isAlwaysRefreshToken()) return;
  
          // FYI: A refresh requires same scope, so same roles will be set.  Otherwise, refresh will fail and token will
          // not be updated
          boolean success = session.refreshExpiredToken(false);
          if (success && session.isActive()) return;
  
          // Refresh failed, so user is already logged out from keycloak. Cleanup and expire our session
          request.getSession().removeAttribute(KeycloakSecurityContext.class.getName());
          request.getSession().invalidate();
      }
  
      @Override
      public boolean isCached(RequestAuthenticator authenticator) {
          if (request.getSession(false) == null || request.getSession().getAttribute(KeycloakSecurityContext.class.getName()) == null)
              return false;
          log.debug("remote logged in already. Establish state from session");
  
          RefreshableKeycloakSecurityContext securityContext = (RefreshableKeycloakSecurityContext) request.getSession().getAttribute(KeycloakSecurityContext.class.getName());
          if (!deployment.getRealm().equals(securityContext.getRealm())) {
              log.debug("Account from cookie is from a different realm than for the request.");
              return false;
          }
  
          securityContext.setCurrentRequestInfo(deployment, this);
          request.setAttribute(KeycloakSecurityContext.class.getName(), securityContext);
  
          JettyRequestAuthenticator jettyAuthenticator = (JettyRequestAuthenticator) authenticator;
          KeycloakPrincipal<RefreshableKeycloakSecurityContext> principal = AdapterUtils.createPrincipal(deployment, securityContext);
          jettyAuthenticator.principal = principal;
          restoreRequest();
          return true;
      }
  
      @Override
      public void saveAccountInfo(OidcKeycloakAccount account) {
          RefreshableKeycloakSecurityContext securityContext = (RefreshableKeycloakSecurityContext) account.getKeycloakSecurityContext();
          request.getSession().setAttribute(KeycloakSecurityContext.class.getName(), securityContext);
      }
  
      @Override
      public void logout() {
          HttpSession session = request.getSession(false);
          if (session != null) {
              session.removeAttribute(KeycloakSecurityContext.class.getName());
          }
      }
  
      @Override
      public void refreshCallback(RefreshableKeycloakSecurityContext securityContext) {
          // no-op
      }
  
      @Override
      public void saveRequest() {
          sessionStore.saveRequest();
  
      }
  
      @Override
      public boolean restoreRequest() {
          return sessionStore.restoreRequest();
      }
  }
  