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 GmbH & Co. KG, 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.workplace.tools.workplace.broadcast;
  
  import org.opencms.file.CmsUser;
  import org.opencms.jsp.CmsJspActionElement;
  import org.opencms.main.CmsIllegalStateException;
  import org.opencms.main.CmsLog;
  import org.opencms.main.CmsSessionInfo;
  import org.opencms.main.OpenCms;
  import org.opencms.util.CmsStringUtil;
  import org.opencms.widgets.CmsDisplayWidget;
  import org.opencms.widgets.CmsInputWidget;
  import org.opencms.widgets.CmsTextareaWidget;
  import org.opencms.workplace.CmsWidgetDialogParameter;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.Iterator;
  import java.util.List;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import javax.servlet.jsp.PageContext;
  
  import org.apache.commons.logging.Log;
  
  /**
   * Dialog to edit an email to send in the administration view.<p>
   *
   * @since 6.0.0
   */
  public class CmsSendEmailDialog extends A_CmsMessageDialog {
  
      /** localized messages Keys prefix. */
      public static final String KEY_PREFIX = "email";
  
      /** The static log object for this class. */
      private static final Log LOG = CmsLog.getLog(CmsSendEmailDialog.class);
  
      /** a warning about excluded users with no email. */
      private String m_excludedUsers = "";
  
      /**
       * Public constructor with JSP action element.<p>
       *
       * @param jsp an initialized JSP action element
       */
      public CmsSendEmailDialog(CmsJspActionElement jsp) {
  
          super(jsp);
      }
  
      /**
       * Public constructor with JSP variables.<p>
       *
       * @param context the JSP page context
       * @param req the JSP request
       * @param res the JSP response
       */
      public CmsSendEmailDialog(PageContext context, HttpServletRequest req, HttpServletResponse res) {
  
          this(new CmsJspActionElement(context, req, res));
      }
  
      /**
       * Commits the edited project to the db.<p>
       */
      @Override
      public void actionCommit() {
  
          List<Throwable> errors = new ArrayList<Throwable>();
  
          if (CmsStringUtil.isEmptyOrWhitespaceOnly(m_msgInfo.getTo())) {
              setCommitErrors(
                  Collections.singletonList((Throwable)new CmsIllegalStateException(
                      Messages.get().container(Messages.ERR_NO_SELECTED_USER_WITH_EMAIL_0))));
              return;
          }
          try {
              m_msgInfo.setTo(getEmailAddresses());
              m_msgInfo.sendEmail(getCms());
          } catch (Throwable t) {
              errors.add(t);
          } finally {
              m_msgInfo.setTo(getToNames());
          }
          // set the list of errors to display when saving failed
          setCommitErrors(errors);
      }
  
      /**
       * Returns a warning if users have been excluded.<p>
       *
       * @return a warning
       */
      public String getExcludedUsers() {
  
          return m_excludedUsers;
      }
  
      /**
       * Sets the warning message if users have been excluded.<p>
       *
       * @param excludedUsers the warning message
       */
      public void setExcludedUsers(String excludedUsers) {
  
          m_excludedUsers = excludedUsers;
      }
  
      /**
       * @see org.opencms.workplace.CmsWidgetDialog#createDialogHtml(java.lang.String)
       */
      @Override
      protected String createDialogHtml(String dialog) {
  
          StringBuffer result = new StringBuffer(1024);
  
          result.append(createWidgetTableStart());
          // show error header once if there were validation errors
          result.append(createWidgetErrorHeader());
  
          int n = 4;
          getToNames(); // need it to fill the exclude users property
          if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(getExcludedUsers())) {
              n++;
          }
          if (dialog.equals(PAGES[0])) {
              // create the widgets for the first dialog page
              result.append(dialogBlockStart(key(Messages.GUI_MESSAGE_EDITOR_LABEL_HEADER_BLOCK_0)));
              result.append(createWidgetTableStart());
              result.append(createDialogRowsHtml(0, n - 1));
              result.append(createWidgetTableEnd());
              result.append(dialogBlockEnd());
              result.append(dialogBlockStart(key(Messages.GUI_MESSAGE_EDITOR_LABEL_CONTENT_BLOCK_0)));
              result.append(createWidgetTableStart());
              result.append(createDialogRowsHtml(n, n));
              result.append(createWidgetTableEnd());
              result.append(dialogBlockEnd());
          }
  
          result.append(createWidgetTableEnd());
          return result.toString();
      }
  
      /**
       * Creates the list of widgets for this dialog.<p>
       */
      @Override
      protected void defineWidgets() {
  
          // initialize the project object to use for the dialog
          initMessageObject();
  
          setKeyPrefix(KEY_PREFIX);
  
          addWidget(new CmsWidgetDialogParameter(m_msgInfo, "from", PAGES[0], new CmsDisplayWidget()));
          if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(getExcludedUsers())) {
              addWidget(new CmsWidgetDialogParameter(this, "excludedUsers", PAGES[0], new CmsDisplayWidget()));
          }
          addWidget(new CmsWidgetDialogParameter(m_msgInfo, "to", PAGES[0], new CmsDisplayWidget()));
          addWidget(new CmsWidgetDialogParameter(m_msgInfo, "cc", PAGES[0], "", new CmsInputWidget(), 0, 1));
          addWidget(new CmsWidgetDialogParameter(m_msgInfo, "subject", PAGES[0], new CmsInputWidget()));
          addWidget(new CmsWidgetDialogParameter(m_msgInfo, "msg", PAGES[0], new CmsTextareaWidget(12)));
      }
  
      /**
       * Returns a semicolon separated list of user names.<p>
       *
       * @return a semicolon separated list of user names
       */
      @Override
      protected String getToNames() {
  
          List<String> excluded = new ArrayList<String>();
          List<String> users = new ArrayList<String>();
          Iterator<String> itIds = idsList().iterator();
          while (itIds.hasNext()) {
              String id = itIds.next();
              CmsSessionInfo session = OpenCms.getSessionManager().getSessionInfo(id);
              if (session != null) {
                  try {
                      CmsUser user = getCms().readUser(session.getUserId());
                      String userName = user.getFullName();
                      if (!users.contains(userName)) {
                          String emailAddress = user.getEmail();
                          if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(emailAddress)) {
                              users.add(userName);
                          } else {
                              excluded.add(userName);
                          }
                      }
                  } catch (Exception e) {
                      LOG.error(e.getLocalizedMessage(), e);
                  }
              }
          }
          if (!excluded.isEmpty()) {
              StringBuffer text = new StringBuffer(500);
              text.append(Messages.get().container(Messages.GUI_EXCLUDED_USERS_WARNING_0).key(getLocale()));
              text.append("\n");
              Iterator<String> it = excluded.iterator();
              while (it.hasNext()) {
                  text.append("- ");
                  text.append(it.next());
                  text.append("\n");
              }
              setExcludedUsers(text.toString());
          }
          if (users.isEmpty()) {
              setCommitErrors(
                  Collections.singletonList((Throwable)new CmsIllegalStateException(
                      Messages.get().container(Messages.ERR_NO_SELECTED_USER_WITH_EMAIL_0))));
              return "";
          }
          StringBuffer result = new StringBuffer(256);
          Iterator<String> itUsers = users.iterator();
          while (itUsers.hasNext()) {
              result.append(itUsers.next().toString());
              if (itUsers.hasNext()) {
                  result.append("; ");
              }
          }
          return result.toString();
      }
  
      /**
       * Returns a semicolon separated list of email addresses.<p>
       *
       * @return a semicolon separated list of email addresses
       */
      private String getEmailAddresses() {
  
          List<String> emails = new ArrayList<String>();
          Iterator<String> itIds = idsList().iterator();
          while (itIds.hasNext()) {
              String id = itIds.next();
              CmsSessionInfo session = OpenCms.getSessionManager().getSessionInfo(id);
              if (session != null) {
                  try {
                      String emailAddress = getCms().readUser(session.getUserId()).getEmail();
                      if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(emailAddress) && !emails.contains(emailAddress)) {
                          emails.add(emailAddress);
                      }
                  } catch (Exception e) {
                      LOG.error(e.getLocalizedMessage(), e);
                  }
              }
          }
          StringBuffer result = new StringBuffer(256);
          Iterator<String> itEmails = emails.iterator();
          while (itEmails.hasNext()) {
              result.append(itEmails.next());
              if (itEmails.hasNext()) {
                  result.append("; ");
              }
          }
          return result.toString();
      }
  }