195 lines
9.4 KiB
Java
195 lines
9.4 KiB
Java
/*
|
|
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
|
|
* Copyright (C) 2016-2024 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 com.viaversion.viaversion.protocols.base;
|
|
|
|
import com.google.common.base.Joiner;
|
|
import com.google.gson.JsonElement;
|
|
import com.google.gson.JsonObject;
|
|
import com.google.gson.JsonParseException;
|
|
import com.viaversion.viaversion.api.Via;
|
|
import com.viaversion.viaversion.api.connection.ProtocolInfo;
|
|
import com.viaversion.viaversion.api.protocol.AbstractProtocol;
|
|
import com.viaversion.viaversion.api.protocol.ProtocolPathEntry;
|
|
import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
|
|
import com.viaversion.viaversion.api.protocol.packet.State;
|
|
import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
|
|
import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
|
|
import com.viaversion.viaversion.api.protocol.version.VersionProvider;
|
|
import com.viaversion.viaversion.api.type.Type;
|
|
import com.viaversion.viaversion.protocol.ProtocolManagerImpl;
|
|
import com.viaversion.viaversion.protocol.ServerProtocolVersionSingleton;
|
|
import com.viaversion.viaversion.protocols.protocol1_9to1_8.Protocol1_9To1_8;
|
|
import com.viaversion.viaversion.util.ChatColorUtil;
|
|
import com.viaversion.viaversion.util.GsonUtil;
|
|
import io.netty.channel.ChannelFuture;
|
|
import java.util.List;
|
|
import java.util.UUID;
|
|
import java.util.logging.Level;
|
|
|
|
public class BaseProtocol1_7 extends AbstractProtocol {
|
|
|
|
@Override
|
|
protected void registerPackets() {
|
|
registerClientbound(ClientboundStatusPackets.STATUS_RESPONSE, new PacketHandlers() { // Status Response Packet
|
|
@Override
|
|
public void register() {
|
|
map(Type.STRING);
|
|
handler(wrapper -> {
|
|
ProtocolInfo info = wrapper.user().getProtocolInfo();
|
|
String originalStatus = wrapper.get(Type.STRING, 0);
|
|
try {
|
|
JsonElement json = GsonUtil.getGson().fromJson(originalStatus, JsonElement.class);
|
|
JsonObject version;
|
|
int protocolVersion = 0; // Unknown!
|
|
|
|
if (json.isJsonObject()) {
|
|
if (json.getAsJsonObject().has("version")) {
|
|
version = json.getAsJsonObject().get("version").getAsJsonObject();
|
|
if (version.has("protocol")) {
|
|
protocolVersion = ((Long) version.get("protocol").getAsLong()).intValue();
|
|
}
|
|
} else {
|
|
json.getAsJsonObject().add("version", version = new JsonObject());
|
|
}
|
|
} else {
|
|
// Format properly
|
|
json = new JsonObject();
|
|
json.getAsJsonObject().add("version", version = new JsonObject());
|
|
}
|
|
|
|
if (Via.getConfig().isSendSupportedVersions()) { // Send supported versions
|
|
version.add("supportedVersions", GsonUtil.getGson().toJsonTree(Via.getAPI().getSupportedVersions()));
|
|
}
|
|
|
|
if (!Via.getAPI().getServerVersion().isKnown()) { // Set the Server protocol if the detection on startup failed
|
|
ProtocolManagerImpl protocolManager = (ProtocolManagerImpl) Via.getManager().getProtocolManager();
|
|
protocolManager.setServerProtocol(new ServerProtocolVersionSingleton(ProtocolVersion.getProtocol(protocolVersion).getVersion()));
|
|
}
|
|
|
|
// Ensure the server has a version provider
|
|
VersionProvider versionProvider = Via.getManager().getProviders().get(VersionProvider.class);
|
|
if (versionProvider == null) {
|
|
wrapper.user().setActive(false);
|
|
return;
|
|
}
|
|
|
|
int closestServerProtocol = versionProvider.getClosestServerProtocol(wrapper.user());
|
|
List<ProtocolPathEntry> protocols = null;
|
|
if (info.getProtocolVersion() >= closestServerProtocol || Via.getPlatform().isOldClientsAllowed()) {
|
|
protocols = Via.getManager().getProtocolManager().getProtocolPath(info.getProtocolVersion(), closestServerProtocol);
|
|
}
|
|
|
|
if (protocols != null) {
|
|
if (protocolVersion == closestServerProtocol || protocolVersion == 0) { // Fix ServerListPlus
|
|
ProtocolVersion prot = ProtocolVersion.getProtocol(info.getProtocolVersion());
|
|
version.addProperty("protocol", prot.getOriginalVersion());
|
|
}
|
|
} else {
|
|
// not compatible :(, *plays very sad violin*
|
|
wrapper.user().setActive(false);
|
|
}
|
|
|
|
if (Via.getConfig().blockedProtocolVersions().contains(info.getProtocolVersion())) {
|
|
version.addProperty("protocol", -1); // Show blocked versions as outdated
|
|
}
|
|
|
|
wrapper.set(Type.STRING, 0, GsonUtil.getGson().toJson(json)); // Update value
|
|
} catch (JsonParseException e) {
|
|
Via.getPlatform().getLogger().log(Level.SEVERE, "Error handling StatusResponse", e);
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
// Login Success Packet
|
|
registerClientbound(ClientboundLoginPackets.GAME_PROFILE, wrapper -> {
|
|
ProtocolInfo info = wrapper.user().getProtocolInfo();
|
|
if (info.getProtocolVersion() < ProtocolVersion.v1_20_2.getVersion()) { // On 1.20.2+, wait for the login ack
|
|
info.setState(State.PLAY);
|
|
}
|
|
|
|
UUID uuid = passthroughLoginUUID(wrapper);
|
|
info.setUuid(uuid);
|
|
|
|
String username = wrapper.passthrough(Type.STRING);
|
|
info.setUsername(username);
|
|
// Add to ported clients
|
|
Via.getManager().getConnectionManager().onLoginSuccess(wrapper.user());
|
|
|
|
if (!info.getPipeline().hasNonBaseProtocols()) { // Only base protocol
|
|
wrapper.user().setActive(false);
|
|
}
|
|
|
|
if (Via.getManager().isDebug()) {
|
|
// Print out the route to console
|
|
Via.getPlatform().getLogger().log(Level.INFO, "{0} logged in with protocol {1}, Route: {2}",
|
|
new Object[]{
|
|
username,
|
|
info.getProtocolVersion(),
|
|
Joiner.on(", ").join(info.getPipeline().pipes(), ", ")
|
|
});
|
|
}
|
|
});
|
|
|
|
// Login Start Packet
|
|
registerServerbound(ServerboundLoginPackets.HELLO, wrapper -> {
|
|
int protocol = wrapper.user().getProtocolInfo().getProtocolVersion();
|
|
if (Via.getConfig().blockedProtocolVersions().contains(protocol)) {
|
|
if (!wrapper.user().getChannel().isOpen()) return;
|
|
if (!wrapper.user().shouldApplyBlockProtocol()) return;
|
|
|
|
PacketWrapper disconnectPacket = PacketWrapper.create(ClientboundLoginPackets.LOGIN_DISCONNECT, wrapper.user()); // Disconnect Packet
|
|
Protocol1_9To1_8.FIX_JSON.write(disconnectPacket, ChatColorUtil.translateAlternateColorCodes(Via.getConfig().getBlockedDisconnectMsg()));
|
|
wrapper.cancel(); // cancel current
|
|
|
|
// Send and close
|
|
ChannelFuture future = disconnectPacket.sendFuture(BaseProtocol.class);
|
|
future.addListener(f -> wrapper.user().getChannel().close());
|
|
}
|
|
});
|
|
|
|
registerServerbound(ServerboundLoginPackets.LOGIN_ACKNOWLEDGED, wrapper -> {
|
|
final ProtocolInfo info = wrapper.user().getProtocolInfo();
|
|
info.setState(State.CONFIGURATION);
|
|
});
|
|
}
|
|
|
|
@Override
|
|
public boolean isBaseProtocol() {
|
|
return true;
|
|
}
|
|
|
|
public static String addDashes(String trimmedUUID) {
|
|
StringBuilder idBuff = new StringBuilder(trimmedUUID);
|
|
idBuff.insert(20, '-');
|
|
idBuff.insert(16, '-');
|
|
idBuff.insert(12, '-');
|
|
idBuff.insert(8, '-');
|
|
return idBuff.toString();
|
|
}
|
|
|
|
protected UUID passthroughLoginUUID(PacketWrapper wrapper) throws Exception {
|
|
String uuidString = wrapper.passthrough(Type.STRING);
|
|
if (uuidString.length() == 32) { // Trimmed UUIDs are 32 characters
|
|
// Trimmed
|
|
uuidString = addDashes(uuidString);
|
|
}
|
|
return UUID.fromString(uuidString);
|
|
}
|
|
}
|