L2JMobius

Public Development => General Discussion => Topic started by: snyderjgz on June 05, 2020, 12:21:56 AM

Title: bots prevention.
Post by: snyderjgz on June 05, 2020, 12:21:56 AM

hello greetings everyone! ;D ;D

Searching the Internet I found an acis anti bot and managed to adapt the code on my server, but something is wrong with the operation. When the system window appears and you try to press the "continue" button nothing happens  :( :( :-\ :-\

(https://i.imgur.com/sxMjVNq.png)

I leave the code to see if anyone can help me

Code: [Select]

/*
 * This file is part of the L2J Mobius project.
 *
 * 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 org.l2jmobius.gameserver.instancemanager;

import java.io.File;
import java.io.RandomAccessFile;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.concurrent.Future;

import org.l2jmobius.Config;
import org.l2jmobius.commons.concurrent.ThreadPool;
import org.l2jmobius.commons.database.DatabaseFactory;
import org.l2jmobius.commons.util.StringUtil;
import org.l2jmobius.gameserver.enums.TeleportWhereType;
import org.l2jmobius.gameserver.model.actor.Creature;
import org.l2jmobius.gameserver.model.actor.instance.MonsterInstance;
import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
import org.l2jmobius.gameserver.network.serverpackets.NpcHtmlMessage;
import org.l2jmobius.gameserver.network.serverpackets.PledgeCrest;

public class BotsPreventionManager
{
private class PlayerData
{
public PlayerData()
{
firstWindow = true;
}

public int mainpattern;
public List<Integer> options = new ArrayList<>();
public boolean firstWindow;
public int patternid;
}

protected Random _randomize;
protected static Map<Integer, Integer> _monsterscounter;
protected static Map<Integer, Future<?>> _beginvalidation;
protected static Map<Integer, PlayerData> _validation;
protected static Map<Integer, byte[]> _images;
protected int WINDOW_DELAY = 3; // delay used to generate new window if previous have been closed.
protected int VALIDATION_TIME = Config.VALIDATION_TIME * 1000;

public static final BotsPreventionManager getInstance()
{
return SingletonHolder._instance;
}

BotsPreventionManager()
{
_randomize = new Random();
_monsterscounter = new HashMap<>();
_beginvalidation = new HashMap<>();
_validation = new HashMap<>();
_images = new HashMap<>();
_beginvalidation = new HashMap<>();

getimages();
}

public void updatecounter(Creature player, Creature monster)
{
if ((player instanceof PlayerInstance) && (monster instanceof MonsterInstance))
{
PlayerInstance killer = (PlayerInstance) player;

if (_validation.get(killer.getObjectId()) != null)
{
return;
}

int count = 1;
if (_monsterscounter.get(killer.getObjectId()) != null)
{
count = _monsterscounter.get(killer.getObjectId()) + 1;
}

int next = _randomize.nextInt(Config.KILLS_COUNTER_RANDOMIZATION);
if ((Config.KILLS_COUNTER + next) < count)
{
validationtasks(killer);
_monsterscounter.remove(killer.getObjectId());
}
else
{
_monsterscounter.put(killer.getObjectId(), count);
}
}
}

private static void getimages()
{
String CRESTS_DIR = "data/html/mods/prevention";

final File directory = new File(CRESTS_DIR);
directory.mkdirs();

int i = 0;
for (File file : directory.listFiles())
{
if (!file.getName().endsWith(".dds"))
{
continue;
}

byte[] data;

try (RandomAccessFile f = new RandomAccessFile(file, "r"))
{
data = new byte[(int) f.length()];
f.readFully(data);
}
catch (Exception e)
{
continue;
}
_images.put(i, data);
i++;
}
}

public void prevalidationwindow(PlayerInstance player)
{
NpcHtmlMessage html = new NpcHtmlMessage(1);
StringBuilder tb = new StringBuilder();
StringUtil.append(tb, "<html>");
StringUtil.append(tb, "<title>Bots prevention</title>");
StringUtil.append(tb, "<body><center><br><br><img src=\"L2UI_CH3.herotower_deco\" width=\"256\" height=\"32\">");
StringUtil.append(tb, "<br><br><font color=\"a2a0a2\">if such window appears it means server suspect,<br1>that you may using cheating software.</font>");
StringUtil.append(tb, "<br><br><font color=\"b09979\">if given answer results are incorrect or no action is made<br1>server is going to punish character instantly.</font>");
StringUtil.append(tb, "<br><br><button value=\"CONTINUE\" action=\"bypass report_continue\" width=\"75\" height=\"21\" back=\"L2UI_CH3.Btn1_normal\" fore=\"L2UI_CH3.Btn1_normal\">");
StringUtil.append(tb, "</center></body>");
StringUtil.append(tb, "</html>");
html.setHtml(tb.toString());
player.sendPacket(html);
}

private static void validationwindow(PlayerInstance player)
{
PlayerData container = _validation.get(player.getObjectId());
NpcHtmlMessage html = new NpcHtmlMessage(1);

StringBuilder tb = new StringBuilder();
StringUtil.append(tb, "<html>");
StringUtil.append(tb, "<title>Bots prevention</title>");
StringUtil.append(tb, "<body><center><br><br><img src=\"L2UI_CH3.herotower_deco\" width=\"256\" height=\"32\">");
StringUtil.append(tb, "<br><br><font color=\"a2a0a2\">in order to prove you are a human being<br1>you've to</font> <font color=\"b09979\">match colours within generated pattern:</font>");

// generated main pattern.
StringUtil.append(tb, "<br><br><img src=\"Crest.crest_" + Config.SERVER_ID + "_" + (_validation.get(player.getObjectId()).patternid) + "\" width=\"32\" height=\"32\"></td></tr>");
StringUtil.append(tb, "<br><br><font color=b09979>click-on pattern of your choice beneath:</font>");

// generate random colours.
StringUtil.append(tb, "<table><tr>");
for (int i = 0; i < container.options.size(); i++)
{
StringUtil.append(tb, "<td><button action=\"bypass -h report_" + i + "\" width=32 height=32 back=\"Crest.crest_" + Config.SERVER_ID + "_" + (container.options.get(i) + 1500) + "\" fore=\"Crest.crest_" + Config.SERVER_ID + "_" + (container.options.get(i) + 1500) + "\"></td>");
}
StringUtil.append(tb, "</tr></table>");
StringUtil.append(tb, "</center></body>");
StringUtil.append(tb, "</html>");

html.setHtml(tb.toString());
player.sendPacket(html);
}

public void punishmentnwindow(PlayerInstance player)
{
NpcHtmlMessage html = new NpcHtmlMessage(1);
StringBuilder tb = new StringBuilder();
StringUtil.append(tb, "<html>");
StringUtil.append(tb, "<title>Bots prevention</title>");
StringUtil.append(tb, "<body><center><br><br><img src=\"L2UI_CH3.herotower_deco\" width=\"256\" height=\"32\">");
StringUtil.append(tb, "<br><br><font color=\"a2a0a2\">if such window appears, it means character haven't<br1>passed through prevention system.");
StringUtil.append(tb, "<br><br><font color=\"b09979\">in such case character get moved to nearest town.</font>");
StringUtil.append(tb, "</center></body>");
StringUtil.append(tb, "</html>");
html.setHtml(tb.toString());
player.sendPacket(html);
}

public void validationtasks(PlayerInstance player)
{
PlayerData container = new PlayerData();
randomizeimages(container, player);

for (Integer element : container.options)
{
PledgeCrest packet = new PledgeCrest((element + 1500), _images.get(element));
player.sendPacket(packet);

}

PledgeCrest packet = new PledgeCrest(container.patternid, _images.get(container.options.get(container.mainpattern)));
player.sendPacket(packet);

_validation.put(player.getObjectId(), container);

Future<?> newTask = ThreadPool.schedule(new ReportCheckTask(player), VALIDATION_TIME);
ThreadPool.schedule(new countdown(player, VALIDATION_TIME / 1000), 0);
_beginvalidation.put(player.getObjectId(), newTask);
}

protected void randomizeimages(PlayerData container, PlayerInstance player)
{
int buttonscount = 4;
int imagescount = _images.size();

for (int i = 0; i < buttonscount; i++)
{
int next = _randomize.nextInt(imagescount);
while (container.options.indexOf(next) > -1)
{
next = _randomize.nextInt(imagescount);
}
container.options.add(next);
}

int mainIndex = _randomize.nextInt(buttonscount);
container.mainpattern = mainIndex;

Calendar token = Calendar.getInstance();
String uniquetoken = Integer.toString(token.get(Calendar.DAY_OF_MONTH)) + Integer.toString(token.get(Calendar.HOUR_OF_DAY)) + Integer.toString(token.get(Calendar.MINUTE)) + Integer.toString(token.get(Calendar.SECOND)) + Integer.toString(token.get(Calendar.MILLISECOND) / 100);
container.patternid = Integer.parseInt(uniquetoken);
}

protected void banpunishment(PlayerInstance player)
{
_validation.remove(player.getObjectId());
_beginvalidation.get(player.getObjectId()).cancel(true);
_beginvalidation.remove(player.getObjectId());

switch (Config.PUNISHMENT)
{
// 0 = move character to the closest village.
// 1 = kick characters from the server.
// 2 = put character to jail.
// 3 = ban character from the server.
case 0:
player.stopMove(null);
player.teleToLocation(TeleportWhereType.TOWN);
punishmentnwindow(player);
break;
case 1:
if (player.isOnline())
{
player.logout(true);
}
break;
case 2:
jailpunishment(player, Config.PUNISHMENT_TIME * 60);
break;
case 3:
// player.setAccessLevel(-100);
changeaccesslevel(player, -100);
break;
}

player.sendMessage("Unfortunately, colours doesn't match.");
}

private static void changeaccesslevel(PlayerInstance targetPlayer, int lvl)
{
if (targetPlayer.isOnline())
{
targetPlayer.setAccessLevel(lvl);
targetPlayer.logout();
}
else
{
try (Connection con = DatabaseFactory.getInstance().getConnection())
{
PreparedStatement statement = con.prepareStatement("UPDATE characters SET accesslevel=? WHERE obj_id=?");
statement.setInt(1, lvl);
statement.setInt(2, targetPlayer.getObjectId());
statement.execute();
statement.close();
}
catch (SQLException se)
{
if (Config.PACKET_HANDLER_DEBUG)
{
se.printStackTrace();
}
}
}
}

private static void jailpunishment(PlayerInstance activeChar, int delay)
{
if (activeChar.isOnline())
{
activeChar.setPunishLevel(PlayerInstance.PunishLevel.JAIL, Config.PUNISHMENT_TIME);
}
else
{
try (Connection con = DatabaseFactory.getInstance().getConnection())
{
PreparedStatement statement = con.prepareStatement("UPDATE characters SET x=?, y=?, z=?, punish_level=?, punish_timer=? WHERE obj_id=?");
statement.setInt(1, -114356);
statement.setInt(2, -249645);
statement.setInt(3, -2984);
statement.setInt(4, PlayerInstance.PunishLevel.JAIL.value());
statement.setLong(5, (delay > 0 ? delay * Config.PUNISHMENT_TIME * 100 : 0));
statement.setInt(6, activeChar.getObjectId());

statement.execute();
statement.close();
}
catch (SQLException se)
{
activeChar.sendMessage("SQLException while jailing player");
if (Config.PACKET_HANDLER_DEBUG)
{
se.printStackTrace();
}
}
}
}

public void AnalyseBypass(String command, PlayerInstance player)
{
if (!_validation.containsKey(player.getObjectId()))
{
return;
}

String params = command.substring(command.indexOf("_") + 1);

if (params.startsWith("continue"))
{
validationwindow(player);
_validation.get(player.getObjectId()).firstWindow = false;
return;
}

int choosenoption = -1;
if (tryParseInt(params))
{
choosenoption = Integer.parseInt(params);
}

if (choosenoption > -1)
{
PlayerData playerData = _validation.get(player.getObjectId());
if (choosenoption != playerData.mainpattern)
{
banpunishment(player);
}
else
{
player.sendMessage("Congratulations, colours match!");
_validation.remove(player.getObjectId());
_beginvalidation.get(player.getObjectId()).cancel(true);
_beginvalidation.remove(player.getObjectId());
}
}
}

protected class countdown implements Runnable
{
private final PlayerInstance _player;
private final int _time;

public countdown(PlayerInstance player, int time)
{
_time = time;
_player = player;
}

@Override
public void run()
{
if (_player.isOnline())
{
if (_validation.containsKey(_player.getObjectId()) && _validation.get(_player.getObjectId()).firstWindow)
{
if ((_time % WINDOW_DELAY) == 0)
{
prevalidationwindow(_player);
}
}

switch (_time)
{
case 300:
case 240:
case 180:
case 120:
case 60:
_player.sendMessage((_time / 60) + " minute(s) to match colors.");
break;
case 30:
case 10:
case 5:
case 4:
case 3:
case 2:
case 1:
_player.sendMessage(_time + " second(s) to match colors!");
break;
}
if ((_time > 1) && _validation.containsKey(_player.getObjectId()))
{
ThreadPool.schedule(new countdown(_player, _time - 1), 1000);
}
}
}
}

protected boolean tryParseInt(String value)
{
try
{
Integer.parseInt(value);
return true;
}

catch (NumberFormatException e)
{
return false;
}
}

public void CaptchaSuccessfull(PlayerInstance player)
{
if (_validation.get(player.getObjectId()) != null)
{
_validation.remove(player.getObjectId());
}
}

public Boolean IsAlredyInReportMode(PlayerInstance player)
{
if (_validation.get(player.getObjectId()) != null)
{
return true;
}
return false;
}

private class ReportCheckTask implements Runnable
{
private final PlayerInstance _player;

public ReportCheckTask(PlayerInstance player)
{
_player = player;
}

@Override
public void run()
{
if (_validation.get(_player.getObjectId()) != null)
{
banpunishment(_player);
}
}
}

private static class SingletonHolder
{
protected static final BotsPreventionManager _instance = new BotsPreventionManager();
}
}

Thanks in advance for the help!  ;D ;D