content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * This library 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 2.1 of the License, or (at your option) any later version.
   *
   * This library 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.
   *
   * For further information about Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package org.opencms.mail;
  
  import org.opencms.main.CmsLog;
  import org.opencms.main.OpenCms;
  import org.opencms.util.CmsStringUtil;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.mail.Email;
  import org.apache.commons.mail.EmailException;
  
  /**
   * Contains utility methods for dealing with emails.<p>
   */
  public final class CmsMailUtil {
  
      /** The logger instance for this class. */
      private static final Log LOG = CmsLog.getLog(CmsMailUtil.class);
  
      /** Value for 'security' attribute to enable SSL. */
      public static final String SECURITY_SSL = "SSL";
  
      /** Value for 'security' attribute to enable TLS. */
      public static final String SECURITY_STARTTLS = "STARTTLS";
  
      /**
       * Hidden default constructor.<p>
       */
      private CmsMailUtil() {
  
          // hidden default constructor
      }
  
      /**
       * Configures the mail from the given mail host configuration data.<p>
       *
       * @param host the mail host configuration
       * @param mail the email instance
       */
      public static void configureMail(CmsMailHost host, Email mail) {
  
          // set the host to the default mail host
          mail.setHostName(host.getHostname());
          mail.setSmtpPort(host.getPort());
  
          // check if username and password are provided
          String userName = host.getUsername();
          if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(userName)) {
              // authentication needed, set user name and password
              mail.setAuthentication(userName, host.getPassword());
          }
          String security = host.getSecurity() != null ? host.getSecurity().trim() : null;
          if (SECURITY_SSL.equalsIgnoreCase(security)) {
              mail.setSslSmtpPort("" + host.getPort());
              mail.setSSLOnConnect(true);
          } else if (SECURITY_STARTTLS.equalsIgnoreCase(security)) {
              mail.setStartTLSEnabled(true);
          }
  
          try {
              // set default mail from address
              String mailFrom = host.getMailfrom() != null
              ? host.getMailfrom()
              : OpenCms.getSystemInfo().getMailSettings().getMailFromDefault();
              mail.setFrom(mailFrom);
          } catch (EmailException e) {
              // default email address is not valid, log error
              LOG.error(Messages.get().getBundle().key(Messages.LOG_INVALID_SENDER_ADDRESS_0), e);
          }
      }
  }
  