Just something small that I wrote for my own emulator, but I ported it to Odin so you can use it too!
ScriptedHandler.java
PacketProcessor.java
handler\PacketError.js (example script)
Release Notes:
[+] Directory /handlers must be present in the runtime directory.
[+] All scripted handlers are loaded for both the Login Server and Channel Server, and if you wish to have it loaded different you may modify the directory.
[+] All handlers must follow the traditional method convention such as in PacketError.js (unless the interface wrap-around was modified).
[+] PacketProcessor handler loading is from a v83 Valhalla fork, so it is recommended that you modify the handlers to be built with your specific source (just copy + paste the "registerHandler" portions of the method).
[+] This wasn't intended on being too leecher-friendly, so if you want to do more with this you have to write the rest yourself.
ScriptedHandler.java
Code:
package net.sf.odinms.net;
import org.slf4j.Logger;
import java.io.FileReader;
import javax.script.Invocable;
import org.slf4j.LoggerFactory;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import net.sf.odinms.client.MapleClient;
import net.sf.odinms.tools.data.input.SeekableLittleEndianAccessor;
public final class ScriptedHandler extends AbstractMaplePacketHandler {
private HandlerScript hs;
private static final ScriptEngine se;
private static final ScriptEngineManager sem;
private static Logger log = LoggerFactory.getLogger(ScriptedHandler.class);
static {
sem = new ScriptEngineManager();
se = sem.getEngineByName("JavaScript");
}
public ScriptedHandler(String path) {
reload(path);
}
public void reload(String path) {
synchronized (se) {
try (FileReader fr = new FileReader(path)) {
se.eval(fr);
fr.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
hs = ((Invocable) se).getInterface(HandlerScript.class);
}
}
public int getHandledOpcode() {
return hs.getHandledOpcode();
}
@Override
public void handlePacket(SeekableLittleEndianAccessor slea, MapleClient c) {
hs.handle(c, slea, log);
}
private interface HandlerScript {
public int getHandledOpcode();
public void handle(MapleClient c, SeekableLittleEndianAccessor slea, Logger out);
}
}PacketProcessor.java
Code:
/*
This file is part of the OdinMS Maple Story Server
Copyright (C) 2008 Patrick Huy <[email protected]>
Matthias Butz <[email protected]>
Jan Christian Meyer <[email protected]>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License version 3
as published by the Free Software Foundation. You may not use, modify
or distribute this program under any other version of the
GNU Affero General Public License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.odinms.net;
import java.io.File;
import java.util.LinkedHashMap;
import net.sf.odinms.constants.ServerConstants;
import net.sf.odinms.net.handler.KeepAliveHandler;
import net.sf.odinms.net.handler.LoginRequiringNoOpHandler;
import net.sf.odinms.net.channel.handler.*;
import net.sf.odinms.net.login.handler.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public final class PacketProcessor {
public enum Mode {
LOGINSERVER,
CHANNELSERVER
};
private static PacketProcessor instance;
private LinkedHashMap<Integer, MaplePacketHandler> handlers;
private static final Logger log = LoggerFactory.getLogger(PacketProcessor.class);
private PacketProcessor() {
handlers = new LinkedHashMap<Integer, MaplePacketHandler>();
}
public MaplePacketHandler getHandler(int packetId) {
return handlers.get(packetId);
}
public void registerHandler(RecvPacketOpcode code, MaplePacketHandler handler) {
handlers.put(code.getValue(), handler);
}
public synchronized static PacketProcessor getProcessor(Mode mode) {
if (instance == null) {
instance = new PacketProcessor();
instance.reset(mode);
}
return instance;
}
public void reset(Mode mode) {
handlers.clear();
registerHandler(RecvPacketOpcode.PONG, new KeepAliveHandler());
if (mode == Mode.LOGINSERVER) {
registerHandler(RecvPacketOpcode.AFTER_LOGIN, new AfterLoginHandler());
registerHandler(RecvPacketOpcode.SERVERLIST_REREQUEST, new ServerlistRequestHandler());
registerHandler(RecvPacketOpcode.CHARLIST_REQUEST, new CharlistRequestHandler());
registerHandler(RecvPacketOpcode.CHAR_SELECT, new CharSelectedHandler());
registerHandler(RecvPacketOpcode.LOGIN_PASSWORD, new LoginPasswordHandler());
registerHandler(RecvPacketOpcode.RELOG, new RelogRequestHandler());
registerHandler(RecvPacketOpcode.SERVERLIST_REQUEST, new ServerlistRequestHandler());
registerHandler(RecvPacketOpcode.SERVERSTATUS_REQUEST, new ServerStatusRequestHandler());
registerHandler(RecvPacketOpcode.CHECK_CHAR_NAME, new CheckCharNameHandler());
registerHandler(RecvPacketOpcode.CREATE_CHAR, new CreateCharHandler());
registerHandler(RecvPacketOpcode.DELETE_CHAR, new DeleteCharHandler());
registerHandler(RecvPacketOpcode.VIEW_ALL_CHAR, new ViewCharHandler());
registerHandler(RecvPacketOpcode.PICK_ALL_CHAR, new PickCharHandler());
} else if (mode == Mode.CHANNELSERVER) {
registerHandler(RecvPacketOpcode.CHANGE_CHANNEL, new ChangeChannelHandler());
registerHandler(RecvPacketOpcode.STRANGE_DATA, LoginRequiringNoOpHandler.getInstance());
registerHandler(RecvPacketOpcode.GENERAL_CHAT, new GeneralchatHandler());
registerHandler(RecvPacketOpcode.WHISPER, new WhisperHandler());
registerHandler(RecvPacketOpcode.NPC_TALK, new NPCTalkHandler());
registerHandler(RecvPacketOpcode.NPC_TALK_MORE, new NPCMoreTalkHandler());
registerHandler(RecvPacketOpcode.QUEST_ACTION, new QuestActionHandler());
registerHandler(RecvPacketOpcode.NPC_SHOP, new NPCShopHandler());
registerHandler(RecvPacketOpcode.ITEM_SORT, new ItemSortHandler());
registerHandler(RecvPacketOpcode.ITEM_SORT2, new ItemIdSortHandler());
registerHandler(RecvPacketOpcode.ITEM_MOVE, new ItemMoveHandler());
registerHandler(RecvPacketOpcode.MESO_DROP, new MesoDropHandler());
registerHandler(RecvPacketOpcode.PLAYER_LOGGEDIN, new PlayerLoggedinHandler());
registerHandler(RecvPacketOpcode.CHANGE_MAP, new ChangeMapHandler());
registerHandler(RecvPacketOpcode.MOVE_LIFE, new MoveLifeHandler());
registerHandler(RecvPacketOpcode.CLOSE_RANGE_ATTACK, new CloseRangeDamageHandler());
registerHandler(RecvPacketOpcode.RANGED_ATTACK, new RangedAttackHandler());
registerHandler(RecvPacketOpcode.MAGIC_ATTACK, new MagicDamageHandler());
registerHandler(RecvPacketOpcode.TAKE_DAMAGE, new TakeDamageHandler());
registerHandler(RecvPacketOpcode.MOVE_PLAYER, new MovePlayerHandler());
registerHandler(RecvPacketOpcode.USE_CASH_ITEM, new UseCashItemHandler());
registerHandler(RecvPacketOpcode.USE_ITEM, new UseItemHandler());
registerHandler(RecvPacketOpcode.USE_RETURN_SCROLL, new UseItemHandler());
registerHandler(RecvPacketOpcode.USE_UPGRADE_SCROLL, new ScrollHandler());
registerHandler(RecvPacketOpcode.USE_SUMMON_BAG, new UseSummonBag());
registerHandler(RecvPacketOpcode.FACE_EXPRESSION, new FaceExpressionHandler());
registerHandler(RecvPacketOpcode.HEAL_OVER_TIME, new HealOvertimeHandler());
registerHandler(RecvPacketOpcode.ITEM_PICKUP, new ItemPickupHandler());
registerHandler(RecvPacketOpcode.CHAR_INFO_REQUEST, new CharInfoRequestHandler());
registerHandler(RecvPacketOpcode.SPECIAL_MOVE, new SpecialMoveHandler());
registerHandler(RecvPacketOpcode.USE_INNER_PORTAL, new InnerPortalHandler());
registerHandler(RecvPacketOpcode.CANCEL_BUFF, new CancelBuffHandler());
registerHandler(RecvPacketOpcode.CANCEL_ITEM_EFFECT, new CancelItemEffectHandler());
registerHandler(RecvPacketOpcode.PLAYER_INTERACTION, new PlayerInteractionHandler());
registerHandler(RecvPacketOpcode.DISTRIBUTE_AP, new DistributeAPHandler());
registerHandler(RecvPacketOpcode.DISTRIBUTE_SP, new DistributeSPHandler());
registerHandler(RecvPacketOpcode.CHANGE_KEYMAP, new KeymapChangeHandler());
registerHandler(RecvPacketOpcode.RING_ACTION, new RingActionHandler());
registerHandler(RecvPacketOpcode.CHANGE_MAP_SPECIAL, new ChangeMapSpecialHandler());
registerHandler(RecvPacketOpcode.STORAGE, new StorageHandler());
registerHandler(RecvPacketOpcode.GIVE_FAME, new GiveFameHandler());
registerHandler(RecvPacketOpcode.PARTY_OPERATION, new PartyOperationHandler());
registerHandler(RecvPacketOpcode.DENY_PARTY_REQUEST, new DenyPartyRequestHandler());
registerHandler(RecvPacketOpcode.PARTYCHAT, new PartychatHandler());
registerHandler(RecvPacketOpcode.USE_DOOR, new DoorHandler());
registerHandler(RecvPacketOpcode.ENTER_MTS, new EnterMTSHandler());
registerHandler(RecvPacketOpcode.ENTER_CASH_SHOP, new EnterCashShopHandler());
registerHandler(RecvPacketOpcode.ARAN_COMBO_COUNTER, new AranComboHandler());
registerHandler(RecvPacketOpcode.DAMAGE_SUMMON, new DamageSummonHandler());
registerHandler(RecvPacketOpcode.MOVE_SUMMON, new MoveSummonHandler());
registerHandler(RecvPacketOpcode.SUMMON_ATTACK, new SummonDamageHandler());
registerHandler(RecvPacketOpcode.BUDDYLIST_MODIFY, new BuddylistModifyHandler());
registerHandler(RecvPacketOpcode.USE_ITEMEFFECT, new UseItemEffectHandler());
registerHandler(RecvPacketOpcode.USE_CHAIR, new UseChairHandler());
registerHandler(RecvPacketOpcode.CANCEL_CHAIR, new CancelChairHandler());
registerHandler(RecvPacketOpcode.DAMAGE_REACTOR, new ReactorHitHandler());
registerHandler(RecvPacketOpcode.BEHOLDER, new BeholderHandler());
registerHandler(RecvPacketOpcode.GUILD_OPERATION, new GuildOperationHandler());
registerHandler(RecvPacketOpcode.DENY_GUILD_REQUEST, new DenyGuildRequestHandler());
registerHandler(RecvPacketOpcode.BBS_OPERATION, new BBSOperationHandler());
registerHandler(RecvPacketOpcode.SKILL_EFFECT, new SkillEffectHandler());
registerHandler(RecvPacketOpcode.MESSENGER, new MessengerHandler());
registerHandler(RecvPacketOpcode.NPC_ACTION, new NPCAnimation());
registerHandler(RecvPacketOpcode.TOUCHING_CS, new TouchingCashShopHandler());
registerHandler(RecvPacketOpcode.BUY_CS_ITEM, new BuyCSItemHandler());
registerHandler(RecvPacketOpcode.COUPON_CODE, new CouponCodeHandler());
registerHandler(RecvPacketOpcode.SPAWN_PET, new SpawnPetHandler());
registerHandler(RecvPacketOpcode.MOVE_PET, new MovePetHandler());
registerHandler(RecvPacketOpcode.PET_CHAT, new PetChatHandler());
registerHandler(RecvPacketOpcode.PET_COMMAND, new PetCommandHandler());
registerHandler(RecvPacketOpcode.PET_FOOD, new PetFoodHandler());
registerHandler(RecvPacketOpcode.PET_LOOT, new PetLootHandler());
registerHandler(RecvPacketOpcode.AUTO_AGGRO, new AutoAggroHandler());
registerHandler(RecvPacketOpcode.MONSTER_BOMB, new MonsterBombHandler());
registerHandler(RecvPacketOpcode.CANCEL_DEBUFF, new CancelDebuffHandler());
registerHandler(RecvPacketOpcode.USE_SKILL_BOOK, new SkillBookHandler());
registerHandler(RecvPacketOpcode.POISON_BOMB, new PoisonBombHandler());
registerHandler(RecvPacketOpcode.SKILL_MACRO, new SkillMacroHandler());
registerHandler(RecvPacketOpcode.NOTE_ACTION, new NoteActionHandler());
registerHandler(RecvPacketOpcode.MAPLETV, new MapleTVHandler());
registerHandler(RecvPacketOpcode.PLAYER_UPDATE, new PlayerUpdateHandler());
registerHandler(RecvPacketOpcode.USE_CATCH_ITEM, new UseCatchItemHandler());
registerHandler(RecvPacketOpcode.CLOSE_CHALKBOARD, new CloseChalkboardHandler());
registerHandler(RecvPacketOpcode.HIRED_MERCHANT_REQUEST, new HiredMerchantHandler());
registerHandler(RecvPacketOpcode.DUEY_ACTION, new DueyActionHandler());
registerHandler(RecvPacketOpcode.SILVER_BOX, new TreasureBoxHandler());
registerHandler(RecvPacketOpcode.USE_HAMMER_ITEM, new UseHammerHandler());
registerHandler(RecvPacketOpcode.USE_FISHING_ITEM, new UseFishingHandler());
} else {
throw new RuntimeException("Unknown packet processor mode");
}
if (ServerConstants.SCRIPTED_HANDLERS) {
try {
File f = new File("handlers");
if (f.exists() && f.isDirectory()) {
File[] fs = f.listFiles();
if (fs.length != 0) {
for (int i = 0; i < fs.length; i++) {
ScriptedHandler sh = new ScriptedHandler(fs[i].getPath());
if (!handlers.containsKey(sh.getHandledOpcode())) { // no sense in loading a handler we have
handlers.put(sh.getHandledOpcode(), sh);
}
}
}
}
} catch (Exception e) {
log.error("Error While Loading Scripts: ", e);
}
}
}
}handler\PacketError.js (example script)
Code:
/**
* PacketError.js
* Written By: Zygon
* Version Support: v0.98
*/
function getHandledOpcode() {
return 0x25;
}
function handle(c, pr, out) {
pr.readShort();
var code = pr.readInt();
var op = -1;
if (pr.available() >= 8) {
pr.skip(6);
op = pr.readShort();
}
var msg = "Received Error ";
msg += code;
msg += " from ";
msg += c.getIP();
msg += " with Opcode = ";
msg += (op > -1) ? op : "N/A";
out.info(msg);
}Release Notes:
[+] Directory /handlers must be present in the runtime directory.
[+] All scripted handlers are loaded for both the Login Server and Channel Server, and if you wish to have it loaded different you may modify the directory.
[+] All handlers must follow the traditional method convention such as in PacketError.js (unless the interface wrap-around was modified).
[+] PacketProcessor handler loading is from a v83 Valhalla fork, so it is recommended that you modify the handlers to be built with your specific source (just copy + paste the "registerHandler" portions of the method).
[+] This wasn't intended on being too leecher-friendly, so if you want to do more with this you have to write the rest yourself.
Last edited:
