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package com.sun.mail.imap;

import java.io.IOException;
import java.nio.charset.StandardCharsets;

import com.sun.mail.util.BASE64DecoderStream;

/**
 * Handle IMAP connection with LOGIN authentication.
 *
 * @author Bill Shannon
 */
public class IMAPLoginHandler extends IMAPHandler {

    protected String username = "test";
    protected String password = "test";

    public IMAPLoginHandler() {
	capabilities += " LOGINDISABLED AUTH=LOGIN";
    }

    /**
     * AUTHENTICATE LOGIN command.
     *
     * @throws IOException unable to read/write to socket
     */
    public void authlogin(String ir) throws IOException {
	if (ir != null)
	    bad("AUTHENTICATE LOGIN does not support initial response");
	cont(base64encode("Username"));
	String resp = readLine();
	String u = new String(BASE64DecoderStream.decode(
				    resp.getBytes(StandardCharsets.US_ASCII)),
				StandardCharsets.UTF_8);
	cont(base64encode("Password"));
	resp = readLine();
	String p = new String(BASE64DecoderStream.decode(
				    resp.getBytes(StandardCharsets.US_ASCII)),
				StandardCharsets.UTF_8);
	//System.out.printf("USER: %s, PASSWORD: %s%n", u, p);
	if (!u.equals(username) || !p.equals(password)) {
	    no("authentication failed");
	    return;
	}
        ok("[CAPABILITY " + capabilities + "]");
    }
}
