import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import java.io.*;

public class MailReceiverTerminal {
   public static void main(String[] args) {
      String host = args[0]; //"imap.gmail.com";
      String port = args[1]; //"993";
      String username = args[2]; //"pierre.wijkman@gmail.com";
      String password = args[3]; //"xxxxxx";
      String numberOfMessages = args[4]; //"10";

      try {
         Properties props = new Properties();
         props.setProperty("mail.store.protocol","imap");
         props.setProperty("mail.imap.host", host);
         props.setProperty("mail.imap.port", port);
         props.setProperty("mail.imap.ssl.enable","true");
         //props.setProperty("mail.debug", "true");

         Session session = Session.getDefaultInstance(props, null);
         //session.setDebug(true);

         // Get the store
         Store store = session.getStore("imap");
         store.connect(host, Integer.parseInt(port), username, password);

         // Get hold of the default folder
         Folder folder = store.getDefaultFolder();
         if (folder == null) throw new Exception("No default folder");
          // ... and its INBOX
         folder = folder.getFolder("INBOX");
         if (folder == null) throw new Exception("No POP3 INBOX");
         // -- Open the folder for read only --
         folder.open(Folder.READ_ONLY);

         // Get directory
         Message message[] = folder.getMessages();

         //for (int i = 0, n = message.length; i < n; i++) {
         for (int i = 0, n = Integer.parseInt(numberOfMessages); i < n; i++) {
           printMessage(message[i]);
           //Thread.sleep(1000);
         }

         folder.close(false);
         store.close();
      } catch(Exception e) {}
   }

   public static void printMessage(Message message) {
     try {
       // Get the header information
       String from = ((InternetAddress)message.getFrom()[0]).getPersonal();
       if (from == null) from = ((InternetAddress)message.getFrom()[0]).getAddress();
       System.out.println("FROM: " + from + "\n");

       String subject = message.getSubject();
       System.out.println("SUBJECT: " + subject + "\n");

       // -- Get the message part (i.e. the message itself) --
       Part messagePart = message;
       Object content = messagePart.getContent();
       // -- or its first body part if it is a multipart message --
       if (content instanceof Multipart) {
         messagePart=((Multipart)content).getBodyPart(0);
         System.out.println("<MEDDELANDE MED BIFOGADE FILER>" + "\n");
       }
       // -- Get the content type --
       String contentType = messagePart.getContentType();
       // -- If the content is plain text, we can print it --
       // messages.append("CONTENT TYPE: " + contentType + "\n");
       if (contentType.startsWith("text/plain") || contentType.startsWith("text/html") || contentType.startsWith("TEXT/PLAIN") || contentType.startsWith("TEXT/HTML")) {
         InputStream is = messagePart.getInputStream();
         BufferedReader reader = new BufferedReader(new InputStreamReader(is));
         String thisLine = reader.readLine();
         while (thisLine != null) {
           System.out.println(thisLine + "\n");
           thisLine = reader.readLine();
         }
       }
       System.out.println("##############################" + "\n");
     } catch (Exception ex) {
       ex.printStackTrace();
     }
   }
}