mirror of
https://github.com/ViaVersion/ViaProxy.git
synced 2024-09-27 04:12:53 +02:00
Added server version auto detect support
This commit is contained in:
RaphiMC
parent
de82e4c598
commit
1706b8c718
@ -85,6 +85,9 @@ dependencies {
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include "net.lenni0451.classtransform:additionalclassprovider:1.12.1"
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include "net.lenni0451:Reflect:1.3.0"
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include "net.lenni0451:LambdaEvents:2.3.2"
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include("net.lenni0451:MCPing:1.3.0") {
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exclude group: "com.google.code.gson", module: "gson"
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}
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include("net.raphimc.netminecraft:all:2.3.7-SNAPSHOT") {
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exclude group: "com.google.code.gson", module: "gson"
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}
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@ -38,6 +38,7 @@ import net.raphimc.netminecraft.constants.MCPipeline;
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import net.raphimc.netminecraft.netty.connection.NetServer;
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import net.raphimc.viaproxy.cli.ConsoleHandler;
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import net.raphimc.viaproxy.cli.options.Options;
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import net.raphimc.viaproxy.injection.VersionEnumExtension;
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import net.raphimc.viaproxy.plugins.PluginManager;
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import net.raphimc.viaproxy.plugins.events.Client2ProxyHandlerCreationEvent;
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import net.raphimc.viaproxy.plugins.events.ProxyStartEvent;
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@ -132,7 +133,8 @@ public class ViaProxy {
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ConsoleHandler.hookConsole();
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ClassLoaderPriorityUtil.loadOverridingJars();
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loadNetty();
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ViaProxy.loadNetty();
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VersionEnumExtension.init();
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SAVE_MANAGER = new SaveManager();
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PLUGIN_MANAGER = new PluginManager();
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@ -0,0 +1,38 @@
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/*
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* This file is part of ViaProxy - https://github.com/RaphiMC/ViaProxy
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* Copyright (C) 2023 RK_01/RaphiMC and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package net.raphimc.viaproxy.injection;
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import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
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import net.lenni0451.reflect.Enums;
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import net.raphimc.vialoader.util.VersionEnum;
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public class VersionEnumExtension {
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private static final ProtocolVersion autoDetect = ProtocolVersion.register(-2, "Auto Detect (1.7+ servers)");
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public static final VersionEnum AUTO_DETECT = Enums.newInstance(VersionEnum.class, "AUTO_DETECT", VersionEnum.UNKNOWN.ordinal(), new Class<?>[]{ProtocolVersion.class}, new Object[]{autoDetect});
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static {
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Enums.addEnumInstance(VersionEnum.class, AUTO_DETECT);
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VersionEnum.SORTED_VERSIONS.add(AUTO_DETECT);
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}
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public static void init() {
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// calls static initializer
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}
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}
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@ -21,12 +21,16 @@ import com.google.common.collect.ImmutableSet;
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import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
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import com.viaversion.viaversion.api.protocol.version.VersionRange;
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import com.viaversion.viaversion.util.Pair;
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import net.raphimc.viaproxy.injection.VersionEnumExtension;
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import org.spongepowered.asm.mixin.Final;
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import org.spongepowered.asm.mixin.Mixin;
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import org.spongepowered.asm.mixin.Shadow;
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import org.spongepowered.asm.mixin.Unique;
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import org.spongepowered.asm.mixin.injection.At;
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import org.spongepowered.asm.mixin.injection.Inject;
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import org.spongepowered.asm.mixin.injection.Redirect;
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import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
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import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
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import java.util.HashMap;
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import java.util.Map;
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@ -35,6 +39,10 @@ import java.util.Set;
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@Mixin(value = ProtocolVersion.class, remap = false)
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public abstract class MixinProtocolVersion {
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@Shadow
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@Final
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private int version;
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@Unique
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private static Set<String> skips;
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@ -89,4 +97,11 @@ public abstract class MixinProtocolVersion {
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return ProtocolVersion.register(version, name, versionRange);
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}
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@Inject(method = "isKnown", at = @At("HEAD"), cancellable = true)
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private void markAutoDetectAsUnknown(CallbackInfoReturnable<Boolean> cir) {
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if (VersionEnumExtension.AUTO_DETECT != null && this.version == VersionEnumExtension.AUTO_DETECT.getVersion()) {
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cir.setReturnValue(false);
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}
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}
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}
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@ -30,6 +30,7 @@ import net.raphimc.netminecraft.util.ServerAddress;
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import net.raphimc.vialoader.util.VersionEnum;
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import net.raphimc.viaproxy.ViaProxy;
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import net.raphimc.viaproxy.cli.options.Options;
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import net.raphimc.viaproxy.injection.VersionEnumExtension;
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import net.raphimc.viaproxy.plugins.events.ConnectEvent;
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import net.raphimc.viaproxy.plugins.events.PreConnectEvent;
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import net.raphimc.viaproxy.plugins.events.Proxy2ServerHandlerCreationEvent;
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@ -44,12 +45,14 @@ import net.raphimc.viaproxy.proxy.session.ProxyConnection;
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import net.raphimc.viaproxy.proxy.session.UserOptions;
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import net.raphimc.viaproxy.proxy.util.*;
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import net.raphimc.viaproxy.util.ArrayHelper;
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import net.raphimc.viaproxy.util.ProtocolVersionDetector;
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import net.raphimc.viaproxy.util.logging.Logger;
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import java.net.ConnectException;
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import java.net.InetSocketAddress;
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import java.nio.channels.UnresolvedAddressException;
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import java.util.List;
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import java.util.concurrent.CompletableFuture;
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import java.util.function.Supplier;
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import java.util.regex.Pattern;
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@ -129,13 +132,8 @@ public class Client2ProxyHandler extends SimpleChannelInboundHandler<IPacket> {
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if (arrayHelper.isIndexValid(3)) {
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classicMpPass = arrayHelper.getString(3);
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}
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for (VersionEnum v : VersionEnum.getAllVersions()) {
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if (v.getName().equalsIgnoreCase(versionString)) {
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serverVersion = v;
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break;
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}
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}
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if (serverVersion == null) throw CloseAndReturn.INSTANCE;
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serverVersion = VersionEnum.fromProtocolName(versionString);
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if (serverVersion == VersionEnum.UNKNOWN) throw CloseAndReturn.INSTANCE;
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} else if (Options.SRV_MODE) {
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try {
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if (handshakeParts[0].toLowerCase().contains(".viaproxy.")) {
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@ -150,13 +148,11 @@ public class Client2ProxyHandler extends SimpleChannelInboundHandler<IPacket> {
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connectIP = arrayHelper.getAsString(0, arrayHelper.getLength() - 3, "_");
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connectPort = arrayHelper.getInteger(arrayHelper.getLength() - 2);
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final String versionString = arrayHelper.get(arrayHelper.getLength() - 1);
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for (VersionEnum v : VersionEnum.getAllVersions()) {
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if (v.getName().replace(" ", "-").equalsIgnoreCase(versionString)) {
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serverVersion = v;
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break;
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}
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serverVersion = VersionEnum.fromProtocolName(versionString);
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if (serverVersion == VersionEnum.UNKNOWN) {
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serverVersion = VersionEnum.fromProtocolName(versionString.replace("-", " "));
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}
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if (serverVersion == null) throw CloseAndReturn.INSTANCE;
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if (serverVersion == VersionEnum.UNKNOWN) throw CloseAndReturn.INSTANCE;
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} catch (CloseAndReturn e) {
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this.proxyConnection.kickClient("§cWrong SRV syntax! §6Please use:\n§7ip_port_version.viaproxy.hostname");
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}
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@ -184,6 +180,27 @@ public class Client2ProxyHandler extends SimpleChannelInboundHandler<IPacket> {
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this.proxyConnection.kickClient(preConnectEvent.getCancelMessage());
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}
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final UserOptions userOptions = new UserOptions(classicMpPass, Options.MC_ACCOUNT);
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ChannelUtil.disableAutoRead(this.proxyConnection.getC2P());
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if (packet.intendedState == ConnectionState.LOGIN && serverVersion.equals(VersionEnumExtension.AUTO_DETECT)) {
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CompletableFuture.runAsync(() -> {
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final VersionEnum detectedVersion = ProtocolVersionDetector.get(serverAddress, clientVersion);
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this.connect(serverAddress, detectedVersion, clientVersion, packet.intendedState, userOptions, handshakeParts);
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}).exceptionally(t -> {
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if (t instanceof ConnectException || t instanceof UnresolvedAddressException) {
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this.proxyConnection.kickClient("§cCould not connect to the backend server!");
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} else {
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this.proxyConnection.kickClient("§cAutomatic protocol detection failed!\n§c" + t.getMessage());
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}
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return null;
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});
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} else {
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this.connect(serverAddress, serverVersion, clientVersion, packet.intendedState, userOptions, handshakeParts);
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}
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}
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private void connect(final ServerAddress serverAddress, final VersionEnum serverVersion, final VersionEnum clientVersion, final ConnectionState intendedState, final UserOptions userOptions, final String[] handshakeParts) {
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final Supplier<ChannelHandler> handlerSupplier = () -> ViaProxy.EVENT_MANAGER.call(new Proxy2ServerHandlerCreationEvent(new Proxy2ServerHandler(), false)).getHandler();
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if (serverVersion.equals(VersionEnum.bedrockLatest)) {
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this.proxyConnection = new BedrockProxyConnection(handlerSupplier, Proxy2ServerChannelInitializer::new, this.proxyConnection.getC2P());
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@ -192,8 +209,8 @@ public class Client2ProxyHandler extends SimpleChannelInboundHandler<IPacket> {
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}
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this.proxyConnection.getC2P().attr(ProxyConnection.PROXY_CONNECTION_ATTRIBUTE_KEY).set(this.proxyConnection);
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this.proxyConnection.setClientVersion(clientVersion);
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this.proxyConnection.setC2pConnectionState(packet.intendedState);
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this.proxyConnection.setUserOptions(new UserOptions(classicMpPass, Options.MC_ACCOUNT));
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this.proxyConnection.setC2pConnectionState(intendedState);
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this.proxyConnection.setUserOptions(userOptions);
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this.proxyConnection.getPacketHandlers().add(new StatusPacketHandler(this.proxyConnection));
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this.proxyConnection.getPacketHandlers().add(new CustomPayloadPacketHandler(this.proxyConnection));
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this.proxyConnection.getPacketHandlers().add(new CompressionPacketHandler(this.proxyConnection));
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@ -207,7 +224,6 @@ public class Client2ProxyHandler extends SimpleChannelInboundHandler<IPacket> {
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this.proxyConnection.getPacketHandlers().add(new ResourcePackPacketHandler(this.proxyConnection));
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this.proxyConnection.getPacketHandlers().add(new UnexpectedPacketHandler(this.proxyConnection));
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ChannelUtil.disableAutoRead(this.proxyConnection.getC2P());
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Logger.u_info("connect", this.proxyConnection.getC2P().remoteAddress(), this.proxyConnection.getGameProfile(), "[" + clientVersion.getName() + " <-> " + serverVersion.getName() + "] Connecting to " + serverAddress.getAddress() + ":" + serverAddress.getPort());
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ViaProxy.EVENT_MANAGER.call(new ConnectEvent(this.proxyConnection));
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@ -219,10 +235,10 @@ public class Client2ProxyHandler extends SimpleChannelInboundHandler<IPacket> {
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}
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handshakeParts[0] = serverAddress.getAddress();
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final C2SHandshakePacket newHandshakePacket = new C2SHandshakePacket(clientVersion.getOriginalVersion(), String.join("\0", handshakeParts), serverAddress.getPort(), packet.intendedState);
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final C2SHandshakePacket newHandshakePacket = new C2SHandshakePacket(clientVersion.getOriginalVersion(), String.join("\0", handshakeParts), serverAddress.getPort(), intendedState);
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this.proxyConnection.getChannel().writeAndFlush(newHandshakePacket).addListeners(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE, (ChannelFutureListener) f2 -> {
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if (f2.isSuccess()) {
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this.proxyConnection.setP2sConnectionState(packet.intendedState);
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this.proxyConnection.setP2sConnectionState(intendedState);
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}
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});
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@ -232,7 +248,7 @@ public class Client2ProxyHandler extends SimpleChannelInboundHandler<IPacket> {
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}, (ThrowingChannelFutureListener) f -> {
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if (!f.isSuccess()) {
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if (f.cause() instanceof ConnectException || f.cause() instanceof UnresolvedAddressException) {
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this.proxyConnection.kickClient("§cCould not connect to the backend server!\n§cTry again in a few seconds.");
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this.proxyConnection.kickClient("§cCould not connect to the backend server!");
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} else {
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Logger.LOGGER.error("Error while connecting to the backend server", f.cause());
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this.proxyConnection.kickClient("§cAn error occurred while connecting to the backend server: " + f.cause().getMessage() + "\n§cCheck the console for more information.");
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@ -0,0 +1,56 @@
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/*
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* This file is part of ViaProxy - https://github.com/RaphiMC/ViaProxy
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* Copyright (C) 2023 RK_01/RaphiMC and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package net.raphimc.viaproxy.util;
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import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
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import net.lenni0451.mcping.MCPing;
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import net.lenni0451.mcping.responses.MCPingResponse;
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import net.raphimc.netminecraft.util.ServerAddress;
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import net.raphimc.vialoader.util.VersionEnum;
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public class ProtocolVersionDetector {
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private static final int TIMEOUT = 1000;
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public static VersionEnum get(final ServerAddress serverAddress, final VersionEnum clientVersion) {
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MCPingResponse response = MCPing
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.pingModern(clientVersion.getOriginalVersion())
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.address(serverAddress.getAddress(), serverAddress.getPort())
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.noResolve()
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.timeout(TIMEOUT, TIMEOUT)
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.getSync();
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if (response.version.protocol == clientVersion.getOriginalVersion()) { // If the server is on the same version as the client, we can just connect
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return clientVersion;
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} else { // Else ping again with protocol id -1 to get the protocol id of the server
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response = MCPing
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.pingModern(-1)
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.address(serverAddress.getAddress(), serverAddress.getPort())
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.noResolve()
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.timeout(TIMEOUT, TIMEOUT)
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.getSync();
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if (ProtocolVersion.isRegistered(response.version.protocol)) { // If the protocol is registered, we can use it
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return VersionEnum.fromProtocolId(response.version.protocol);
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} else {
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throw new RuntimeException("Unsupported protocol version: " + response.version.protocol);
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}
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}
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}
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}
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