logins.java

网络游戏天堂1的java源代码。。。。。

// Decompiled by DJ v3.9.9.91 Copyright 2005 Atanas Neshkov  Date: 2007/05/06 22:06:37
// Home Page : http://members.fortunecity.com/neshkov/dj.html  - Check often for new version!
// Decompiler options: packimports(3) 
// Source File Name:   Logins.java

package l1j.server.server;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.sql.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import l1j.server.Base64;
import l1j.server.Config;
import l1j.server.L1DatabaseFactory;
import l1j.server.server.utils.SQLUtil;

public class Logins {
	private static l1j.eric.EricLogger _log =  l1j.eric.EricLogger.getLogger2(Logins.class.getName());

	public static boolean loginValid(String account, String password,
			String ip, String host) {
		boolean flag1 = false;
		_log.info("Connect from : " + account);

		Connection con = null;
		PreparedStatement pstm = null;
		ResultSet rs = null;
		try {
			byte abyte1[];
			byte abyte2[];
			MessageDigest messagedigest = MessageDigest.getInstance("SHA");
			byte abyte0[] = password.getBytes("UTF-8");
			abyte1 = messagedigest.digest(abyte0);
			abyte2 = null;

			con = L1DatabaseFactory.getInstance().getConnection();
			pstm = con
					.prepareStatement("SELECT password FROM accounts WHERE login=? LIMIT 1");
			pstm.setString(1, account);
			rs = pstm.executeQuery();
			if (rs.next()) {
				abyte2 = Base64.decode(rs.getString(1));
				_log.fine("account exists");
			}
			SQLUtil.close(rs);
			SQLUtil.close(pstm);
			SQLUtil.close(con);

			if (abyte2 == null) {
				if (Config.AUTO_CREATE_ACCOUNTS) {
					con = L1DatabaseFactory.getInstance().getConnection();
					pstm = con
							.prepareStatement("INSERT INTO accounts SET login=?,password=?,lastactive=?,access_level=?,ip=?,host=?");
					pstm.setString(1, account);
					pstm.setString(2, Base64.encodeBytes(abyte1));
					pstm.setLong(3, 0L);
					pstm.setInt(4, 0);
					pstm.setString(5, ip);
					pstm.setString(6, host);
					pstm.execute();
					_log.info("創建新賬號:  " + account);
					return true;
				} else {
					_log.warning("account missing for user " + account);
					return false;
				}
			}

			try {
				flag1 = true;
				int i = 0;
				do {
					if (i >= abyte2.length) {
						break;
					}
					if (abyte1[i] != abyte2[i]) {
						flag1 = false;
						break;
					}
					i++;
				} while (true);
			} catch (Exception e) {
				_log.warning("could not check password:" + e);
				flag1 = false;
			}
		} catch (SQLException e) {
			_log.log(Level.SEVERE, e.getLocalizedMessage(), e);
		} catch (NoSuchAlgorithmException e) {
			_log.log(Level.SEVERE, e.getLocalizedMessage(), e);
		} catch (UnsupportedEncodingException e) {
			_log.log(Level.SEVERE, e.getLocalizedMessage(), e);
		} finally {
			SQLUtil.close(rs);
			SQLUtil.close(pstm);
			SQLUtil.close(con);
		}
		return flag1;
	}
}