import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;

public class MailSender extends JFrame {
   private JTextField from = new JTextField();
   private JTextField to = new JTextField();
   private JTextField subject = new JTextField();
   private JTextArea message = new JTextArea();

   public static void main(String[] args) {
      new MailSender();
   }

   public MailSender() {
      setDefaultCloseOperation(EXIT_ON_CLOSE);
      JPanel panel = new JPanel();
      panel.setLayout(new GridLayout(6, 2));

      panel.add(new JLabel("From:"));
      panel.add(from);
      panel.add(new JLabel("To:"));
      panel.add(to);
      panel.add(new JLabel("Subject:"));
      panel.add(subject);

      JButton button = new JButton("Send");
      button.addActionListener(new L());

      getContentPane().add("North", panel);
      getContentPane().add("South", button);
      getContentPane().add("Center", new JScrollPane(message));

      setSize(640, 400);
      setVisible(true);
   }

   public void send() {
      Properties props = new Properties();
      
      props.put("mail.transport.protocol", "smtp");
      props.put("mail.smtp.host", "smtp.su.se");
      props.put("mail.smtp.auth", "false");
      props.put("mail.smtp.port", "25");
      props.put("mail.smtp.starttls.enable", true);

      //props.put("mail.smtp.auth", "true");
      //props.put("mail.smtp.port", "465");
      //props.put("mail.smtp.port", "587"); // Funkar inte mot GMAIL
      //props.put("mail.smtp.socketFactory.port", "465");
      //props.put("mail.smtp.socketFactory.port", "587"); // Funkar inte mot GMAIL
      //props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
      //props.put("mail.smtp.socketFactory.fallback", "false");
       
      //Authenticator auth = new SMTPAuthenticator();
      //Session session = Session.getDefaultInstance(props, auth);

      // Avoid hang by setting timeout 6 seconds
      props.put("mail.smtp.timeout", "6000");
      props.put("mail.smtp.connectiontimeout", "6000");

      Session session = Session.getDefaultInstance(props);
       
      try {
         Transport transport = session.getTransport();
          
         Message msg = new MimeMessage(session);
         InternetAddress ia = new InternetAddress(from.getText());
         msg.setFrom(ia);
         InternetAddress[] ias = {new InternetAddress(to.getText())};
         msg.setRecipients(Message.RecipientType.TO, ias);
         msg.setSubject(subject.getText());
         msg.setText(message.getText());
         transport.send(msg);
      } catch(MessagingException me) {
         System.out.println("MessagingException generated" + me);
      }
       
   }

/*
   class SMTPAuthenticator extends javax.mail.Authenticator {
      public PasswordAuthentication getPasswordAuthentication() {
         String usernameTmp = username.getText();
         String passwordTmp = password.getText();
         return new PasswordAuthentication(usernameTmp, passwordTmp);
       }
   }
*/
    
   class L implements ActionListener {
      public void actionPerformed(ActionEvent ae) {
         send();  
      }
   }
}