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Clean up Apache Mina, goodbye!

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This commit is contained in:
P0nk
2021-07-13 22:10:01 +02:00
parent 94e1125eca
commit 81393392ab
9 changed files with 5 additions and 289 deletions
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2
src/main/java/net/mina/MapleCustomEncryption.java → src/main/java/net/MapleCustomEncryption.java
View File

@@ -19,7 +19,7 @@
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.mina;
package net;
public class MapleCustomEncryption {
private static byte rollLeft(byte in, int count) {

47
src/main/java/net/mina/MapleCodecFactory.java
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@@ -1,47 +0,0 @@
/*
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 as
published by the Free Software Foundation 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.mina;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolCodecFactory;
import org.apache.mina.filter.codec.ProtocolDecoder;
import org.apache.mina.filter.codec.ProtocolEncoder;
public class MapleCodecFactory implements ProtocolCodecFactory {
private final ProtocolEncoder encoder;
private final ProtocolDecoder decoder;
public MapleCodecFactory() {
encoder = new MaplePacketEncoder();
decoder = new MaplePacketDecoder();
}
@Override
public ProtocolEncoder getEncoder(IoSession session) throws Exception {
return encoder;
}
@Override
public ProtocolDecoder getDecoder(IoSession session) throws Exception {
return decoder;
}
}

105
src/main/java/net/mina/MaplePacketDecoder.java
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@@ -1,105 +0,0 @@
/*
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 as
published by the Free Software Foundation 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.mina;
import client.MapleClient;
import config.YamlConfig;
import constants.net.OpcodeConstants;
import net.server.coordinator.session.MapleSessionCoordinator;
import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.CumulativeProtocolDecoder;
import org.apache.mina.filter.codec.ProtocolDecoderOutput;
import tools.FilePrinter;
import tools.HexTool;
import tools.MapleAESOFB;
import tools.data.input.ByteArrayByteStream;
import tools.data.input.GenericLittleEndianAccessor;
public class MaplePacketDecoder extends CumulativeProtocolDecoder {
private static final String DECODER_STATE_KEY = MaplePacketDecoder.class.getName() + ".STATE";
private static class DecoderState {
public int packetlength = -1;
}
@Override
protected boolean doDecode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception {
final MapleClient client = (MapleClient) session.getAttribute(MapleClient.CLIENT_KEY);
if(client == null) {
MapleSessionCoordinator.getInstance().closeSession(MapleClient.getPlaceholder(), true);
return false;
}
DecoderState decoderState = (DecoderState) session.getAttribute(DECODER_STATE_KEY);
if (decoderState == null) {
decoderState = new DecoderState();
session.setAttribute(DECODER_STATE_KEY, decoderState);
}
MapleAESOFB rcvdCrypto = client.getReceiveCrypto();
if (in.remaining() >= 4 && decoderState.packetlength == -1) {
int packetHeader = in.getInt();
if (!rcvdCrypto.isValidHeader(packetHeader)) {
MapleSessionCoordinator.getInstance().closeSession(MapleClient.getPlaceholder(), true);
return false;
}
decoderState.packetlength = MapleAESOFB.getPacketLength(packetHeader);
} else if (in.remaining() < 4 && decoderState.packetlength == -1) {
return false;
}
if (in.remaining() >= decoderState.packetlength) {
byte[] decryptedPacket = new byte[decoderState.packetlength];
in.get(decryptedPacket, 0, decoderState.packetlength);
decoderState.packetlength = -1;
rcvdCrypto.crypt(decryptedPacket);
MapleCustomEncryption.decryptData(decryptedPacket);
out.write(decryptedPacket);
if (YamlConfig.config.server.USE_DEBUG_SHOW_PACKET){ // Atoot's idea: packet traffic log, applied using auto-identation thanks to lrenex
int packetLen = decryptedPacket.length;
int pHeader = readFirstShort(decryptedPacket);
String pHeaderStr = Integer.toHexString(pHeader).toUpperCase();
String op = lookupSend(pHeader);
String Send = "ClientSend:" + op + " [" + pHeaderStr + "] (" + packetLen + ")\r\n";
if (packetLen <= 3000) {
String SendTo = Send + HexTool.toString(decryptedPacket) + "\r\n" + HexTool.toStringFromAscii(decryptedPacket);
System.out.println(SendTo);
if (op == null) {
System.out.println("UnknownPacket:" + SendTo);
}
} else {
FilePrinter.print(FilePrinter.PACKET_STREAM + ".txt", HexTool.toString(new byte[]{decryptedPacket[0], decryptedPacket[1]}) + "...");
}
}
return true;
}
return false;
}
private String lookupSend(int val) {
return OpcodeConstants.recvOpcodeNames.get(val);
}
private int readFirstShort(byte[] arr) {
return new GenericLittleEndianAccessor(new ByteArrayByteStream(arr)).readShort();
}
}

97
src/main/java/net/mina/MaplePacketEncoder.java
View File

@@ -1,97 +0,0 @@
/*
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 as
published by the Free Software Foundation 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.mina;
import client.MapleClient;
import config.YamlConfig;
import constants.net.OpcodeConstants;
import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolEncoder;
import org.apache.mina.filter.codec.ProtocolEncoderOutput;
import tools.FilePrinter;
import tools.HexTool;
import tools.MapleAESOFB;
import tools.data.input.ByteArrayByteStream;
import tools.data.input.GenericLittleEndianAccessor;
public class MaplePacketEncoder implements ProtocolEncoder {
@Override
public void encode(final IoSession session, final Object message, final ProtocolEncoderOutput out) throws Exception {
final MapleClient client = (MapleClient) session.getAttribute(MapleClient.CLIENT_KEY);
try {
if (client.tryacquireEncoder()) {
try {
final MapleAESOFB send_crypto = client.getSendCrypto();
final byte[] input = (byte[]) message;
if (YamlConfig.config.server.USE_DEBUG_SHOW_PACKET) {
int packetLen = input.length;
int pHeader = readFirstShort(input);
String pHeaderStr = Integer.toHexString(pHeader).toUpperCase();
String op = lookupRecv(pHeader);
String Recv = "ServerSend:" + op + " [" + pHeaderStr + "] (" + packetLen + ")\r\n";
if (packetLen <= 50000) {
String RecvTo = Recv + HexTool.toString(input) + "\r\n" + HexTool.toStringFromAscii(input);
System.out.println(RecvTo);
if (op == null) {
System.out.println("UnknownPacket:" + RecvTo);
}
} else {
FilePrinter.print(FilePrinter.PACKET_STREAM + ".txt", HexTool.toString(new byte[]{input[0], input[1]}) + " ...");
}
}
final byte[] unencrypted = new byte[input.length];
System.arraycopy(input, 0, unencrypted, 0, input.length);
final byte[] ret = new byte[unencrypted.length + 4];
final byte[] header = send_crypto.getPacketHeader(unencrypted.length);
MapleCustomEncryption.encryptData(unencrypted);
send_crypto.crypt(unencrypted);
System.arraycopy(header, 0, ret, 0, 4);
System.arraycopy(unencrypted, 0, ret, 4, unencrypted.length);
out.write(IoBuffer.wrap(ret));
} finally {
client.unlockEncoder();
}
}
// System.arraycopy(unencrypted, 0, ret, 4, unencrypted.length);
// out.write(ByteBuffer.wrap(ret));
} catch (NullPointerException npe) {
out.write(IoBuffer.wrap(((byte[]) message)));
}
}
private String lookupRecv(int val) {
return OpcodeConstants.sendOpcodeNames.get(val);
}
private int readFirstShort(byte[] arr) {
return new GenericLittleEndianAccessor(new ByteArrayByteStream(arr)).readShort();
}
@Override
public void dispose(IoSession session) throws Exception {}
}

2
src/main/java/net/netty/PacketDecoder.java
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@@ -6,7 +6,7 @@ import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ReplayingDecoder;
import net.mina.MapleCustomEncryption;
import net.MapleCustomEncryption;
import net.packet.ByteBufInPacket;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

2
src/main/java/net/netty/PacketEncoder.java
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@@ -6,7 +6,7 @@ import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToByteEncoder;
import net.mina.MapleCustomEncryption;
import net.MapleCustomEncryption;
import net.packet.ByteBufInPacket;
import net.packet.OutPacket;
import org.slf4j.Logger;