Cambiar contraseña del jugador con comandos

[Swarlog]

Se trata de un comando a añadir en vuestros servidores con el que un jugador desde dentro del servidor, podrá cambiar su contraseña de cuenta mediante el uso de un comando. By Jing~Jang, espero que os guste!

Código [Seleccionar] Expandir

/*
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
package com.l2jfrozen.gameserver.handler.voicedcommandhandlers;

import java.security.MessageDigest;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.StringTokenizer;

import com.l2jfrozen.crypt.Base64;
import com.l2jfrozen.util.database.L2DatabaseFactory;
import com.l2jfrozen.gameserver.handler.IVoicedCommandHandler;
import com.l2jfrozen.gameserver.model.actor.instance.L2PcInstance;
import com.l2jfrozen.gameserver.network.serverpackets.ExShowScreenMessage;

/*
 * @Author: Unknow
 * @Adaptation: |-Jing~Jang-|
 */

public class ChangePassword implements IVoicedCommandHandler
{
    private static final String[] _voicedCommands =
    {
        "changepass"
    };

    @Override
    public boolean useVoicedCommand(String command, L2PcInstance activeChar, String target)
    {
        if(command.equalsIgnoreCase("changepass") && target != null)
        {
            StringTokenizer st = new StringTokenizer(target);
            try
            {
                String curpass = null, newpass = null, repeatnewpass = null;

                if(st.hasMoreTokens())
                    curpass = st.nextToken();
                if(st.hasMoreTokens())
                    newpass = st.nextToken();
                if(st.hasMoreTokens())
                    repeatnewpass = st.nextToken();

                if(!(curpass == null || newpass == null || repeatnewpass == null))
                {
                    if(!newpass.equals(repeatnewpass))
                    {
                        activeChar.sendMessage("The new password doesn't match with the repeated one!");
                        return false;
                    }
                    if(newpass.length() < 4)
                    {
                        activeChar.sendMessage("The new password is shorter than 4 characters! Please try with a longer one.");
                        return false;
                    }
                    if(newpass.length() > 25)
                    {
                        activeChar.sendMessage("The new password is longer than 25 characters! Please try with a shorter one.");
                        return false;
                    }

                    MessageDigest md = MessageDigest.getInstance("SHA");

                    byte[] raw = curpass.getBytes("UTF-8");
                    raw = md.digest(raw);
                    String curpassEnc = Base64.encodeBytes(raw);
                    String pass = null;
                    int passUpdated = 0;

                    Connection con = null;
                    con = L2DatabaseFactory.getInstance().getConnection();
                    PreparedStatement statement = con.prepareStatement("SELECT password FROM accounts WHERE login=?");
                    statement.setString(1, activeChar.getAccountName());
                    ResultSet rset = statement.executeQuery();

                    if(rset.next())
                    {
                        pass = rset.getString("password");
                    }

                    rset.close();
                    statement.close();

                    if(curpassEnc.equals(pass))
                    {
                        byte[] password = newpass.getBytes("UTF-8");
                        password = md.digest(password);

                        PreparedStatement ps = con.prepareStatement("UPDATE accounts SET password=? WHERE login=?");
                        ps.setString(1, Base64.encodeBytes(password));
                        ps.setString(2, activeChar.getAccountName());
                        passUpdated = ps.executeUpdate();
                        ps.close();
                        con.close();
                       
                        if(passUpdated > 0)
                        {
                            activeChar.sendMessage("You have successfully changed your password!");
                            activeChar.sendPacket(new ExShowScreenMessage("You have successfully changed your password!#Enjoy :)", 6000));
                        }
                        else
                        {
                                activeChar.sendMessage("The password change was unsuccessful!");
                                activeChar.sendPacket(new ExShowScreenMessage("The password change was unsuccessful!!#U_u)", 6000));
                        }
                    }
                    else
                    {
                        activeChar.sendMessage("CurrentPass doesn't match with your current one.");
                        return false;
                    }
                }
                else
                {
                    activeChar.sendMessage("Invalid pass data! Format: .changepass CurrentPass NewPass NewPass");
                    return false;
                }
            }
            catch(Exception e)
            {
                activeChar.sendMessage("A problem occured while changing password!");
            }
        }
        else
        {
            activeChar.sendMessage("To change your current password, you have to type the command in the following format(without the brackets []): [.changepass CurrentPass NewPass NewPass]. You should also know that the password is case sensitive.");
            activeChar.sendPacket(new ExShowScreenMessage("To change your current password, you have to type the command in the following format(without the brackets []):#[.changepass CurrentPass NewPass NewPass]. You should also know that the password is case sensitive.)", 7000));
            return false;
        }

        return true;
    }

    @Override
    public String[] getVoicedCommandList()
    {
        return _voicedCommands;
    }

}