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/* This file is part of the OdinMS Maple Story Server Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc> Matthias Butz <matze@odinms.de> Jan Christian Meyer <vimes@odinms.de> 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 net.sf.odinms.client.MapleClient; import net.sf.odinms.net.channel.ChannelServer; import net.sf.odinms.net.login.LoginWorker; import static net.sf.odinms.net.login.LoginWorker.log; import net.sf.odinms.tools.HexTool; import net.sf.odinms.tools.MapleAESOFB; import net.sf.odinms.tools.MaplePacketCreator; import net.sf.odinms.tools.data.input.ByteArrayByteStream; import net.sf.odinms.tools.data.input.GenericSeekableLittleEndianAccessor; import net.sf.odinms.tools.data.input.SeekableLittleEndianAccessor; import org.apache.mina.common.IdleStatus; import org.apache.mina.common.IoHandlerAdapter; import org.apache.mina.common.IoSession; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class MapleServerHandler extends IoHandlerAdapter { private final static Logger log = LoggerFactory.getLogger(MapleServerHandler.class); private final static short MAPLE_VERSION = 28; //maple version private PacketProcessor processor; private int channel = -1; public MapleServerHandler(PacketProcessor processor) { this.processor = processor; } public MapleServerHandler(PacketProcessor processor, int channel) { this.processor = processor; this.channel = channel; } @Override public void messageSent(IoSession session, Object message) throws Exception { Runnable r = ((MaplePacket) message).getOnSend(); if (r != null) { r.run(); } super.messageSent(session, message); } @Override public void exceptionCaught(IoSession session, Throwable cause) throws Exception { MapleClient client = (MapleClient) session.getAttribute(MapleClient.CLIENT_KEY); log.error(MapleClient.getLogMessage(client, cause.getMessage()), cause); // ChannelServer.getInstance(1).broadcastPacket( // MaplePacketCreator.getChatText(30000, "Exception: " + cause.getClass().getName() + ": " + // cause.getMessage())); // for (int i = 0; i < cause.getStackTrace().length; i++) { // StackTraceElement ste = cause.getStackTrace()[i]; // ChannelServer.getInstance(1).broadcastPacket(MaplePacketCreator.getChatText(30000, ste.toString())); // if (i > 2) { // break; // } // } } @Override public void sessionOpened(IoSession session) throws Exception { System.out.println("IoSession with " + session.getRemoteAddress() + " opened"); if (channel > -1) { if (ChannelServer.getInstance(channel).isShutdown()) { session.close(); return; } } byte ivRecv[] = { 70, 114, 122, 82 }; byte ivSend[] = { 82, 48, 120, 115 }; ivRecv[3] = (byte)(Math.random() * 255); ivSend[3] = (byte)(Math.random() * 255); MapleAESOFB sendCypher = new MapleAESOFB(ivSend, (short)(0xFFFF - MAPLE_VERSION)); MapleAESOFB recvCypher = new MapleAESOFB(ivRecv, MAPLE_VERSION); MapleClient client = new MapleClient(sendCypher, recvCypher, session); client.setChannel(channel); session.write(MaplePacketCreator.getHello(MAPLE_VERSION, ivSend, ivRecv, false)); session.setAttribute(MapleClient.CLIENT_KEY, client); session.setIdleTime(IdleStatus.READER_IDLE, 30); session.setIdleTime(IdleStatus.WRITER_IDLE, 30); } @Override public void sessionClosed(IoSession session) throws Exception { synchronized(session) { MapleClient client = (MapleClient) session.getAttribute(MapleClient.CLIENT_KEY); if (client != null) { client.disconnect(); LoginWorker.getInstance().deregisterClient(client); session.removeAttribute(MapleClient.CLIENT_KEY); } } super.sessionClosed(session); } @Override public void messageReceived(IoSession session, Object message) throws Exception { byte[] content = (byte[]) message; SeekableLittleEndianAccessor slea = new GenericSeekableLittleEndianAccessor(new ByteArrayByteStream(content)); short packetId = slea.readByte(); MapleClient client = (MapleClient) session.getAttribute(MapleClient.CLIENT_KEY); MaplePacketHandler packetHandler = processor.getHandler(packetId); String packetHandlerName = ""; String from = ""; // HexTool#toSting on large buffers is rather expensive - so only do it when we really need to try { packetHandlerName = packetHandler.getClass().getSimpleName(); } catch(Exception e){ packetHandlerName = "unknown"; } log.info("Got message {} ({}) {}\n{}\n{}", new Object[] { "(" + packetHandlerName + ")", "packetId: " + packetId, "(length: " + content.length + ")", HexTool.toString(content), HexTool.toStringFromAscii(content) }); if (log.isTraceEnabled() || log.isInfoEnabled()) { if (client.getPlayer() != null) { from = "from " + client.getPlayer().getName() + " "; } if (packetHandler == null && packetId != 0xE) { if (client.getPlayer() != null) client.getSession().write(MaplePacketCreator.serverNotice(6, "Unhandled packet [" + packetId + "] : " + HexTool.toString(content))); log.info("Got unhandeled message {} ({}) {}\n{}\n{}", new Object[] { "(" + packetHandlerName + ")", "packetId: " + packetId, "(length: " + content.length + ")", HexTool.toString(content), HexTool.toStringFromAscii(content) }); } } if (packetHandler != null && packetHandler.validateState(client)) { try { packetHandler.handlePacket(slea, client); } catch (Throwable t) { log.error(MapleClient.getLogMessage(client, "Exception during processing packet: " + packetHandler.getClass().getName() + ": " + t.getMessage()), t); } } } @Override public void sessionIdle(final IoSession session, final IdleStatus status) throws Exception { MapleClient client = (MapleClient) session.getAttribute(MapleClient.CLIENT_KEY); if (client != null && client.getPlayer() != null && log.isTraceEnabled()) { log.trace("Player {} went idle", client.getPlayer().getName()); } if (client != null) { client.sendPing(); } super.sessionIdle(session, status); } }