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 to = new JTextField();
   private JTextField subject = new JTextField("Test");
   private JTextArea message = new JTextArea("Hej hopp!");

   private JTextField host = new JTextField("smtp.gmail.com");
   private JTextField port = new JTextField("465");
   private JTextField username = new JTextField();
   private JTextField password = new JTextField();

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

   public MailSender() {
      setDefaultCloseOperation(EXIT_ON_CLOSE);
      JPanel panel = new JPanel();
      panel.setLayout(new GridLayout(7, 2));

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

      panel.add(new JLabel("Host:"));
      panel.add(host);
      panel.add(new JLabel("Port:"));
      panel.add(port);
      panel.add(new JLabel("Anvandarnamn:"));
      panel.add(username);
      panel.add(new JLabel("Losenord:"));
      panel.add(password);

      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 prop = new Properties();
      prop.put("mail.smtp.host", host.getText());
      prop.put("mail.smtp.port", port.getText());
      prop.put("mail.smtp.auth", "true");
      prop.put("mail.smtp.socketFactory.port", port.getText());
      prop.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");

      if(port.getText().equals("587"))
        prop.put("mail.smtp.starttls.enable", "true"); 

      Session session = Session.getInstance(prop, new javax.mail.Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
          return new PasswordAuthentication(username.getText(), password.getText());
        }
      });
    
      try {
        Message mimeMessage = new MimeMessage(session);
        mimeMessage.setFrom(new InternetAddress(username.getText()));
        mimeMessage.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to.getText()));
        mimeMessage.setSubject(subject.getText());
        mimeMessage.setText(message.getText());

        Transport.send(mimeMessage);
        System.out.println("Klar!");
      } catch (MessagingException e) {
        e.printStackTrace();
      } 
   }
    
   class L implements ActionListener {
      public void actionPerformed(ActionEvent ae) {
         send();  
      }
   }
}