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Dropped packet crypt listeners and related cleanup.

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MobiusDevelopment
2021-10-21 23:15:04 +00:00
parent c52d596d79
commit 47786d53d4
104 changed files with 778 additions and 4042 deletions
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95
L2J_Mobius_C4_ScionsOfDestiny/java/org/l2jmobius/gameserver/network/Crypt.java
View File

@@ -25,15 +25,8 @@ import io.netty.buffer.ByteBuf;
*/
public class Crypt implements ICrypt
{
// private final GameClient _client;
private final byte[] _inKey = new byte[8];
private final byte[] _outKey = new byte[8];
private boolean _isEnabled;
public Crypt(GameClient client)
{
// _client = client;
}
public void setKey(byte[] key)
{
@@ -41,77 +34,49 @@ public class Crypt implements ICrypt
System.arraycopy(key, 0, _outKey, 0, 8);
}
@Override
public void encrypt(ByteBuf buf)
{
if (!_isEnabled)
{
_isEnabled = true;
onPacketSent(buf);
return;
}
onPacketSent(buf);
int a = 0;
while (buf.isReadable())
{
final int b = buf.readByte() & 0xFF;
a = b ^ _outKey[(buf.readerIndex() - 1) & 7] ^ a;
buf.setByte(buf.readerIndex() - 1, a);
}
shiftKey(_outKey, buf.writerIndex());
}
@Override
public void decrypt(ByteBuf buf)
{
if (!_isEnabled)
{
onPacketReceive(buf);
return;
}
int a = 0;
while (buf.isReadable())
{
final int b = buf.readByte() & 0xFF;
final int b = buf.readByte() & 0xff;
buf.setByte(buf.readerIndex() - 1, b ^ _inKey[(buf.readerIndex() - 1) & 7] ^ a);
a = b;
}
shiftKey(_inKey, buf.writerIndex());
onPacketReceive(buf);
// Shift key.
int old = _inKey[0] & 0xff;
old |= (_inKey[1] << 8) & 0xff00;
old |= (_inKey[2] << 16) & 0xff0000;
old |= (_inKey[3] << 24) & 0xff000000;
old += buf.writerIndex();
_inKey[0] = (byte) (old & 0xff);
_inKey[1] = (byte) ((old >> 8) & 0xff);
_inKey[2] = (byte) ((old >> 16) & 0xff);
_inKey[3] = (byte) ((old >> 24) & 0xff);
}
private void onPacketSent(ByteBuf buf)
@Override
public void encrypt(ByteBuf buf)
{
final byte[] data = new byte[buf.writerIndex()];
buf.getBytes(0, data);
// EventDispatcher.getInstance().notifyEvent(new OnPacketSent(_client, data));
}
private void onPacketReceive(ByteBuf buf)
{
final byte[] data = new byte[buf.writerIndex()];
buf.getBytes(0, data);
// EventDispatcher.getInstance().notifyEvent(new OnPacketReceived(_client, data));
}
private void shiftKey(byte[] key, int size)
{
int old = key[0] & 0xff;
old |= (key[1] << 8) & 0xff00;
old |= (key[2] << 0x10) & 0xff0000;
old |= (key[3] << 0x18) & 0xff000000;
int a = 0;
while (buf.isReadable())
{
final int b = buf.readByte() & 0xff;
a = b ^ _outKey[(buf.readerIndex() - 1) & 7] ^ a;
buf.setByte(buf.readerIndex() - 1, a);
}
old += size;
key[0] = (byte) (old & 0xff);
key[1] = (byte) ((old >> 0x08) & 0xff);
key[2] = (byte) ((old >> 0x10) & 0xff);
key[3] = (byte) ((old >> 0x18) & 0xff);
// Shift key.
int old = _outKey[0] & 0xff;
old |= (_outKey[1] << 8) & 0xff00;
old |= (_outKey[2] << 16) & 0xff0000;
old |= (_outKey[3] << 24) & 0xff000000;
old += buf.writerIndex();
_outKey[0] = (byte) (old & 0xff);
_outKey[1] = (byte) ((old >> 8) & 0xff);
_outKey[2] = (byte) ((old >> 16) & 0xff);
_outKey[3] = (byte) ((old >> 24) & 0xff);
}
}

7
L2J_Mobius_C4_ScionsOfDestiny/java/org/l2jmobius/gameserver/network/GameClient.java
View File

@@ -87,7 +87,7 @@ public class GameClient extends ChannelInboundHandler<GameClient>
protected PlayerInstance _player;
private final FloodProtectors _floodProtectors = new FloodProtectors(this);
private final ReentrantLock _playerLock = new ReentrantLock();
private final Crypt _crypt;
private final Crypt _crypt = new Crypt();
private InetAddress _addr;
private Channel _channel;
private String _accountName;
@@ -98,11 +98,6 @@ public class GameClient extends ChannelInboundHandler<GameClient>
private int _protocolVersion;
private ScheduledFuture<?> _cleanupTask = null;
public GameClient()
{
_crypt = new Crypt(this);
}
@Override
public void channelActive(ChannelHandlerContext ctx)
{