package smtp;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;

public class SMTPSkeleton {

    public static void main(String[] args) throws UnknownHostException, IOException {
        String mailServer = "webmail.buet.ac.bd";
        InetAddress mailHost = InetAddress.getByName(mailServer);
        InetAddress localHost = InetAddress.getLocalHost();
        Socket smtpSocket = new Socket(mailHost,25);
        BufferedReader in =  new BufferedReader(new InputStreamReader(smtpSocket.getInputStream()));
        PrintWriter pr = new PrintWriter(smtpSocket.getOutputStream(),true);
        String initialID = in.readLine();
        System.out.println(initialID);
        pr.println("HELO "+mailHost.getHostName());
        //System.out.println("HELO "+localHost.getHostName());
        //pr.flush();
        String welcome = in.readLine();
        System.out.println(welcome);
        pr.println("MAIL FROM:<sadamataalavi@gmail.com>");
        //pr.flush();
        String from = in.readLine();
        System.out.println(from);
        pr.println("RCPT TO:<ahnaffaisalalavi@gmail.com>");
        //pr.flush();
        String to = in.readLine();
        System.out.println(to);
        pr.println("RCPT TO:<turab2013@gmail.com>");
        //pr.flush();
        to = in.readLine();
        System.out.println(to);
        //pr.println("RCPT TO:<mustakimshovon69@gmail.com>");
        //pr.flush();
        //to = in.readLine();
        System.out.println(to);
        pr.println("DATA");
        //pr.flush();
        String res = in.readLine();
        System.out.println(res);
        //pr.println("DATA");

        pr.println("From: sadamataalavi@gmail.com");
        pr.println("TO: ahnaffaisalalavi@gmail.com");



        pr.println("MIME-Version: 1.0");
        pr.println("Subject: sample msg");
        pr.println("Content-Type: multipart/mixed; boundary=\"simple boundary\"");
        pr.println();

        pr.println("Greetings,");
        pr.println("Hi");
        pr.println("GoodBye.");
        pr.println();

        //Content--Type: application/octet-stream; name=\"image.png\"
//Content-Disposition: attachment; filename=\"image.png\"
//Content-Transfer-Encoding: base64
        pr.println("Content--Type: application/octet-stream; name=\"image.png\"");
        pr.println("Content-Disposition: attachment; filename=\"image.png\"");
        pr.println("Content-Transfer-Encoding: base64");
        pr.println();

        pr.println(".");
        res = in.readLine();
        System.out.println(res);
        pr.println("QUIT");
        res = in.readLine();
        System.out.println(res);
        // TODO code application logic here
    }
}