/*
    * Copyright 2012-2017 CodeLibs Project and the Others.
    *
    * 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 org.codelibs.fess.app.web.sso;
  
  import org.codelibs.fess.app.web.base.FessLoginAction;
  import org.codelibs.fess.app.web.base.login.ActionResponseCredential;
  import org.codelibs.fess.app.web.login.LoginAction;
  import org.codelibs.fess.sso.SsoManager;
  import org.codelibs.fess.util.ComponentUtil;
  import org.lastaflute.web.Execute;
  import org.lastaflute.web.login.credential.LoginCredential;
  import org.lastaflute.web.login.exception.LoginFailureException;
  import org.lastaflute.web.response.ActionResponse;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class SsoAction extends FessLoginAction {
      // ===================================================================================
      //                                                                            Constant
      //
      private static final Logger logger = LoggerFactory.getLogger(SsoAction.class);
  
      // ===================================================================================
      //                                                                       Login Execute
      //                                                                      ==============
  
      @Execute
      public ActionResponse index() {
          final SsoManager ssoManager = ComponentUtil.getSsoManager();
          final LoginCredential loginCredential = ssoManager.getLoginCredential();
          if (loginCredential == null) {
              if (logger.isDebugEnabled()) {
                  logger.debug("No user in SSO request.");
              }
              if (ssoManager.available()) {
                  saveError(messages -> messages.addErrorsSsoLoginError(GLOBAL));
              }
              return redirect(LoginAction.class);
          } else if (loginCredential instanceof ActionResponseCredential) {
              return ((ActionResponseCredential) loginCredential).execute();
          }
          try {
              return fessLoginAssist.loginRedirect(loginCredential, op -> {}, () -> {
                  activityHelper.login(getUserBean());
                  userInfoHelper.deleteUserCodeFromCookie(request);
                  return getHtmlResponse();
              });
          } catch (final LoginFailureException lfe) {
              if (logger.isDebugEnabled()) {
                  logger.debug("SSO login failure.", lfe);
              }
              if (ssoManager.available()) {
                  saveError(messages -> messages.addErrorsSsoLoginError(GLOBAL));
              }
              return redirect(LoginAction.class);
          }
      }
  }