78 lines
3.5 KiB
Java
78 lines
3.5 KiB
Java
/*
|
|
* This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
|
|
* Copyright (C) 2016-2021 ViaVersion and contributors
|
|
*
|
|
* 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 nl.matsv.viabackwards.protocol.protocol1_12_1to1_12_2;
|
|
|
|
import nl.matsv.viabackwards.api.BackwardsProtocol;
|
|
import us.myles.ViaVersion.api.PacketWrapper;
|
|
import us.myles.ViaVersion.api.data.UserConnection;
|
|
import us.myles.ViaVersion.api.remapper.PacketHandler;
|
|
import us.myles.ViaVersion.api.remapper.PacketRemapper;
|
|
import us.myles.ViaVersion.api.type.Type;
|
|
import us.myles.ViaVersion.protocols.protocol1_12_1to1_12.ClientboundPackets1_12_1;
|
|
import us.myles.ViaVersion.protocols.protocol1_12_1to1_12.ServerboundPackets1_12_1;
|
|
|
|
public class Protocol1_12_1To1_12_2 extends BackwardsProtocol<ClientboundPackets1_12_1, ClientboundPackets1_12_1, ServerboundPackets1_12_1, ServerboundPackets1_12_1> {
|
|
|
|
public Protocol1_12_1To1_12_2() {
|
|
super(ClientboundPackets1_12_1.class, ClientboundPackets1_12_1.class, ServerboundPackets1_12_1.class, ServerboundPackets1_12_1.class);
|
|
}
|
|
|
|
@Override
|
|
protected void registerPackets() {
|
|
registerOutgoing(ClientboundPackets1_12_1.KEEP_ALIVE, new PacketRemapper() {
|
|
@Override
|
|
public void registerMap() {
|
|
handler(new PacketHandler() {
|
|
@Override
|
|
public void handle(PacketWrapper packetWrapper) throws Exception {
|
|
Long keepAlive = packetWrapper.read(Type.LONG);
|
|
packetWrapper.user().get(KeepAliveTracker.class).setKeepAlive(keepAlive);
|
|
packetWrapper.write(Type.VAR_INT, keepAlive.hashCode());
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
registerIncoming(ServerboundPackets1_12_1.KEEP_ALIVE, new PacketRemapper() {
|
|
@Override
|
|
public void registerMap() {
|
|
handler(new PacketHandler() {
|
|
@Override
|
|
public void handle(PacketWrapper packetWrapper) throws Exception {
|
|
int keepAlive = packetWrapper.read(Type.VAR_INT);
|
|
long realKeepAlive = packetWrapper.user().get(KeepAliveTracker.class).getKeepAlive();
|
|
if (keepAlive != Long.hashCode(realKeepAlive)) {
|
|
packetWrapper.cancel(); // Wrong data, cancel packet
|
|
return;
|
|
}
|
|
packetWrapper.write(Type.LONG, realKeepAlive);
|
|
// Reset KeepAliveTracker (to prevent sending same valid value in a row causing a timeout)
|
|
packetWrapper.user().get(KeepAliveTracker.class).setKeepAlive(Integer.MAX_VALUE);
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
@Override
|
|
public void init(UserConnection userConnection) {
|
|
userConnection.put(new KeepAliveTracker(userConnection));
|
|
}
|
|
}
|