/**
    * This file Copyright (c) 2017 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.module.mail.smtp.authentication;
  
  import info.magnolia.keystore.registry.PasswordRegistry;
  import info.magnolia.module.mail.MailConstants;
  import info.magnolia.module.mail.MailModule;
  import info.magnolia.objectfactory.Components;
  
  import javax.inject.Inject;
  import javax.mail.Authenticator;
  import javax.mail.PasswordAuthentication;
  
  import org.apache.commons.lang3.StringUtils;
  
  /**
   * Composite SMTP authentication.
   */
  public class UsernamePasswordSmtpAuthentication implements SmtpAuthentication {
      private String user;
      private String passwordKeyStoreId;
  
      private final PasswordRegistry passwordRegistry;
  
      @Inject
      public UsernamePasswordSmtpAuthentication(PasswordRegistry passwordRegistry) {
          this.passwordRegistry = passwordRegistry;
      }
  
      public Authenticator getAuthenticator() {
          return new Authenticator() {
              @Override
              protected PasswordAuthentication getPasswordAuthentication() {
                  //compatibility with the old config:
                  final String user = StringUtils.isBlank(getUser()) ? Components.getComponent(MailModule.class).getSmtp().get(MailConstants.SMTP_USER) : getUser();
                  final String password = StringUtils.isBlank(getPasswordKeyStoreId()) ? Components.getComponent(MailModule.class).getSmtp().get(MailConstants.SMTP_PASSWORD) : passwordRegistry.getPassword(getPasswordKeyStoreId()).getDecryptedValue();
                  return new PasswordAuthentication(user, password);
              }
          };
      }
  
      public String getUser() {
          return user;
      }
  
      public void setUser(String user) {
          this.user = user;
      }
  
      public String getPasswordKeyStoreId() {
          return passwordKeyStoreId;
      }
  
      public void setPasswordKeyStoreId(String passwordKeyStoreId) {
          this.passwordKeyStoreId = passwordKeyStoreId;
      }
  }