There you go, 1.12 support

Co-authored-by: Kichura <business_squeezy@outlook.com>
This commit is contained in:
FlorianMichael 2024-02-03 22:39:26 +01:00
parent 4a4b4a3cf1
commit 6dd9ad9361
No known key found for this signature in database
GPG Key ID: C2FB87E71C425126
33 changed files with 1755 additions and 0 deletions

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@ -8,6 +8,7 @@ pluginManagement {
rootProject.name = "ViaFabric"
include("viafabric-mc18")
include("viafabric-mc112")
include("viafabric-mc114")
include("viafabric-mc115")
include("viafabric-mc116")

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@ -0,0 +1,14 @@
dependencies {
minecraft("com.mojang:minecraft:1.12.2")
mappings("net.legacyfabric:yarn:1.12.2+build.535:v2")
modImplementation("net.legacyfabric.legacy-fabric-api:legacy-fabric-api:1.9.1+1.12.2")
// fix newer java
@Suppress("GradlePackageUpdate", "RedundantSuppression")
implementation("io.netty:netty-all:4.0.56.Final")
}
loom {
intermediaryUrl.set("https://maven.legacyfabric.net/net/legacyfabric/intermediary/%1\$s/intermediary-%1\$s-v2.jar")
}

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@ -0,0 +1,97 @@
/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112;
import com.google.common.collect.Range;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import com.viaversion.fabric.common.config.VFConfig;
import com.viaversion.fabric.common.platform.FabricInjector;
import com.viaversion.fabric.common.protocol.HostnameParserProtocol;
import com.viaversion.fabric.common.util.JLoggerToLog4j;
import com.viaversion.fabric.mc112.commands.NMSCommandImpl;
import com.viaversion.fabric.mc112.commands.VFCommandHandler;
import com.viaversion.fabric.mc112.platform.FabricPlatform;
import com.viaversion.fabric.mc112.platform.VFLoader;
import com.viaversion.viaversion.ViaManagerImpl;
import com.viaversion.viaversion.api.Via;
import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
import io.netty.channel.EventLoop;
import io.netty.channel.local.LocalEventLoopGroup;
import net.fabricmc.api.ModInitializer;
import net.fabricmc.loader.api.FabricLoader;
import net.legacyfabric.fabric.api.registry.CommandRegistry;
import org.apache.logging.log4j.LogManager;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import java.util.logging.Logger;
public class ViaFabric implements ModInitializer {
public static final Logger JLOGGER = new JLoggerToLog4j(LogManager.getLogger("ViaFabric"));
public static final ExecutorService ASYNC_EXECUTOR;
public static final EventLoop EVENT_LOOP;
public static final CompletableFuture<Void> INIT_FUTURE = new CompletableFuture<>();
public static VFConfig config;
static {
ThreadFactory factory = new ThreadFactoryBuilder().setDaemon(true).setNameFormat("ViaFabric-%d").build();
ASYNC_EXECUTOR = Executors.newFixedThreadPool(8, factory);
EVENT_LOOP = new LocalEventLoopGroup(1, factory).next(); // ugly code
EVENT_LOOP.submit(INIT_FUTURE::join); // https://github.com/ViaVersion/ViaFabric/issues/53 ugly workaround code but works tm
}
@Override
public void onInitialize() {
FabricPlatform platform = new FabricPlatform();
Via.init(ViaManagerImpl.builder()
.injector(new FabricInjector())
.loader(new VFLoader())
.commandHandler(new VFCommandHandler())
.platform(platform).build());
platform.init();
ViaManagerImpl manager = (ViaManagerImpl) Via.getManager();
manager.init();
Via.getManager().getProtocolManager().registerBaseProtocol(HostnameParserProtocol.INSTANCE, Range.lessThan(Integer.MIN_VALUE));
ProtocolVersion.register(-2, "AUTO");
FabricLoader.getInstance().getEntrypoints("viafabric:via_api_initialized", Runnable.class).forEach(Runnable::run);
registerCommandsV1();
config = new VFConfig(FabricLoader.getInstance().getConfigDir().resolve("ViaFabric")
.resolve("viafabric.yml").toFile());
manager.onServerLoaded();
INIT_FUTURE.complete(null);
}
private void registerCommandsV1() {
try {
CommandRegistry.INSTANCE.register(new NMSCommandImpl(Via.getManager().getCommandHandler()));
} catch (NoClassDefFoundError ignored2) {
JLOGGER.info("Couldn't register command as Fabric Commands isn't installed");
}
}
}

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@ -0,0 +1,67 @@
/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.commands;
import net.minecraft.command.AbstractCommand;
import net.minecraft.command.CommandException;
import net.minecraft.command.CommandSource;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.math.BlockPos;
import com.viaversion.viaversion.api.command.ViaVersionCommand;
import org.jetbrains.annotations.Nullable;
import java.util.Arrays;
import java.util.List;
public class NMSCommandImpl extends AbstractCommand {
private final ViaVersionCommand handler;
public NMSCommandImpl(ViaVersionCommand handler) {
this.handler = handler;
}
@Override
public String getCommandName() {
return "viaversion";
}
@Override
public List<String> getAliases() {
return Arrays.asList("vvfabric", "viaver");
}
@Override
public void method_3279(MinecraftServer minecraftServer, CommandSource commandSource, String[] strings) {
handler.onCommand(new NMSCommandSender(commandSource), strings);
}
@Override
public String getUsageTranslationKey(CommandSource commandSource) {
return "/viaversion [help|subcommand]";
}
@Override
public List<String> method_10738(MinecraftServer server, CommandSource commandSource, String[] strings, @Nullable BlockPos pos) {
return handler.onTabComplete(new NMSCommandSender(commandSource), strings);
}
@Override
public int getPermissionLevel() {
return 3;
}
}

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@ -0,0 +1,62 @@
/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.commands;
import com.viaversion.viaversion.api.command.ViaCommandSender;
import com.viaversion.viaversion.util.ComponentUtil;
import net.minecraft.command.CommandSource;
import net.minecraft.entity.Entity;
import net.minecraft.text.Text;
import java.nio.charset.StandardCharsets;
import java.util.UUID;
public class NMSCommandSender implements ViaCommandSender {
private final CommandSource source;
public NMSCommandSender(CommandSource source) {
this.source = source;
}
@Override
public boolean hasPermission(String s) {
// https://gaming.stackexchange.com/questions/138602/what-does-op-permission-level-do
return source.canUseCommand(3, "viaversion.admin"); // the string seems to be the command
}
@Override
public void sendMessage(String s) {
source.sendMessage(Text.Serializer.deserializeText(ComponentUtil.legacyToJsonString(s)));
}
@Override
public UUID getUUID() {
if (source instanceof Entity) {
return ((Entity) source).getUuid();
}
return UUID.nameUUIDFromBytes(getName().getBytes(StandardCharsets.UTF_8));
}
@Override
public String getName() {
if (source instanceof Entity) {
return source.getName().asUnformattedString();
}
return "?";
}
}

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@ -0,0 +1,31 @@
/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.commands;
import com.viaversion.fabric.common.commands.subs.LeakDetectSubCommand;
import com.viaversion.viaversion.commands.ViaCommandHandler;
public class VFCommandHandler extends ViaCommandHandler {
{
try {
registerSubCommand(new LeakDetectSubCommand());
} catch (Exception e) {
e.printStackTrace();
}
}
}

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@ -0,0 +1,43 @@
/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.gui;
import net.minecraft.client.gui.widget.PagedEntryListWidget;
import java.util.function.Consumer;
public class ChangedListener implements PagedEntryListWidget.Listener {
private final Consumer<String> consumer;
public ChangedListener(Consumer<String> consumer) {
this.consumer = consumer;
}
@Override
public void setBooleanValue(int id, boolean value) {
}
@Override
public void setFloatValue(int id, float value) {
}
@Override
public void setStringValue(int id, String text) {
consumer.accept(text);
}
}

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@ -0,0 +1,37 @@
/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.gui;
import net.minecraft.client.gui.widget.ButtonWidget;
import java.util.function.Consumer;
public class ListeneableButton extends ButtonWidget {
private final Consumer<ButtonWidget> click;
public ListeneableButton(int id, int x, int y, int width, int height, String message, Consumer<ButtonWidget> click) {
super(id, x, y, width, height, message);
this.click = click;
}
@Override
public void mouseReleased(int mouseX, int mouseY) {
super.mouseReleased(mouseX, mouseY);
click.accept(this);
}
}

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@ -0,0 +1,67 @@
/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.gui;
import com.mojang.blaze3d.platform.GlStateManager;
import net.minecraft.client.MinecraftClient;
import net.minecraft.client.gui.widget.ButtonWidget;
import net.minecraft.client.sound.SoundManager;
import net.minecraft.util.Identifier;
import java.util.function.Consumer;
public class ViaButton extends ButtonWidget {
// Meant to be similar to higher versions TexturedButtonWidget
private final int startU;
private final int startV;
private final int offsetHoverV;
private final Identifier texturePath;
private final Consumer<ViaButton> onClick;
public ViaButton(int id, int x, int y, int width, int height, int startU, int startV, int offsetHoverV, Identifier texturePath,
int textureSizeX, int textureSizeY, Consumer<ViaButton> onClick, String altTxt) {
super(id, x, y, width, height, altTxt);
this.startU = startU;
this.startV = startV;
this.offsetHoverV = offsetHoverV;
this.texturePath = texturePath;
assert textureSizeX == 256;
assert textureSizeY == 256;
this.onClick = onClick;
}
public void render(MinecraftClient client, int mouseX, int mouseY) {
// Modified copy-paste from LockButtonWidget
if (this.visible) {
client.getTextureManager().bindTexture(texturePath);
GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
boolean hover = mouseX >= this.x && mouseY >= this.y && mouseX < this.x + this.width && mouseY < this.y + this.height;
int v = startV;
if (hover) {
v += offsetHoverV;
}
this.drawTexture(this.x, this.y, startU, v, this.width, this.height);
}
}
@Override
public void playDownSound(SoundManager soundManager) {
super.playDownSound(soundManager);
onClick.accept(this);
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.gui;
import com.viaversion.fabric.common.config.AbstractViaConfigScreen;
import com.viaversion.fabric.mc112.ViaFabric;
import com.viaversion.fabric.common.util.ProtocolUtils;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.client.MinecraftClient;
import net.minecraft.client.gui.screen.ConfirmScreen;
import net.minecraft.client.gui.screen.Screen;
import net.minecraft.client.gui.widget.ButtonWidget;
import net.minecraft.client.gui.widget.TextFieldWidget;
import net.minecraft.text.Text;
import net.minecraft.text.TranslatableText;
import java.util.concurrent.CompletableFuture;
@Environment(EnvType.CLIENT)
public class ViaConfigScreen extends Screen implements AbstractViaConfigScreen {
private static CompletableFuture<Void> latestProtocolSave;
private final Screen parent;
private TextFieldWidget protocolVersion;
private final Text title;
public ViaConfigScreen(Screen parent) {
super();
title = new TranslatableText(TITLE_TRANSLATE_ID);
this.parent = parent;
}
@Override
public void init() {
int entries = 0;
this.buttons.add(new ListeneableButton("clientside".hashCode(), calculatePosX(this.width, entries),
calculatePosY(this.height, entries),
150,
20, getClientSideText().asUnformattedString(), this::onClickClientSide));
entries++;
this.buttons.add(new ListeneableButton("hidevia".hashCode(), calculatePosX(this.width, entries),
calculatePosY(this.height, entries),
150,
20, getHideViaButtonText().asUnformattedString(), this::onHideViaButton));
entries++;
protocolVersion = new TextFieldWidget("protover".hashCode(), textRenderer,
calculatePosX(this.width, entries),
calculatePosY(this.height, entries),
150,
20);
protocolVersion.setText(new TranslatableText(VERSION_TRANSLATE_ID).asUnformattedString());
entries++;
protocolVersion.setTextPredicate(ProtocolUtils::isStartOfProtocolText);
protocolVersion.setListener(new ChangedListener(this::onChangeVersionField));
int clientSideVersion = ViaFabric.config.getClientSideVersion();
protocolVersion.setText(ProtocolUtils.getProtocolName(clientSideVersion));
onChangeVersionField(protocolVersion.getText());
//this.children.add(protocolVersion);
buttons.add(new ListeneableButton("done".hashCode(), this.width / 2 - 100, this.height - 40, 200, 20, new TranslatableText("gui.done").asUnformattedString(),
(buttonWidget) -> MinecraftClient.getInstance().setScreen(this.parent)));
}
private void onChangeVersionField(String text) {
//protocolVersion.setSuggestion(null);
int newVersion = ViaFabric.config.getClientSideVersion();
Integer parsed = ProtocolUtils.parseProtocolId(text);
boolean validProtocol;
if (parsed != null) {
newVersion = parsed;
validProtocol = true;
} else {
validProtocol = false;
}
protocolVersion.setEditableColor(getProtocolTextColor(newVersion, validProtocol));
int finalNewVersion = newVersion;
if (latestProtocolSave == null) latestProtocolSave = CompletableFuture.completedFuture(null);
ViaFabric.config.setClientSideVersion(finalNewVersion);
latestProtocolSave = latestProtocolSave.thenRunAsync(ViaFabric.config::save, ViaFabric.ASYNC_EXECUTOR);
}
private void onClickClientSide(ButtonWidget widget) {
if (!ViaFabric.config.isClientSideEnabled()) {
MinecraftClient.getInstance().setScreen(new ConfirmScreen(
(answer, id) -> {
if (answer) {
ViaFabric.config.setClientSideEnabled(true);
ViaFabric.config.setClientSideVersion(-2); // AUTO
ViaFabric.config.save();
widget.message = getClientSideText().asUnformattedString();
}
MinecraftClient.getInstance().setScreen(this);
},
new TranslatableText("gui.enable_client_side.question").asUnformattedString(),
new TranslatableText("gui.enable_client_side.warning").asUnformattedString(),
new TranslatableText("gui.enable_client_side.enable").asUnformattedString(),
new TranslatableText("gui.cancel").asUnformattedString(),
"via anticheat consent".hashCode()
));
} else {
ViaFabric.config.setClientSideEnabled(false);
ViaFabric.config.save();
}
widget.message = getClientSideText().asUnformattedString();
}
@Override
public void removed() {
ViaFabric.config.save();
}
private TranslatableText getClientSideText() {
return ViaFabric.config.isClientSideEnabled() ?
new TranslatableText("gui.client_side.disable")
: new TranslatableText("gui.client_side.enable");
}
private TranslatableText getHideViaButtonText() {
return ViaFabric.config.isHideButton() ?
new TranslatableText("gui.hide_via_button.disable") : new TranslatableText("gui.hide_via_button.enable");
}
private void onHideViaButton(ButtonWidget widget) {
ViaFabric.config.setHideButton(!ViaFabric.config.isHideButton());
ViaFabric.config.save();
widget.message = getHideViaButtonText().asUnformattedString();
}
@Override
public void render(int mouseX, int mouseY, float delta) {
this.renderBackground();
drawCenteredString(this.textRenderer, this.title.asUnformattedString(), this.width / 2, 20, 16777215);
super.render(mouseX, mouseY, delta);
protocolVersion.render();
}
@Override
public void tick() {
super.tick();
protocolVersion.tick();
}
@Override
protected void keyPressed(char character, int code) {
super.keyPressed(character, code);
protocolVersion.keyPressed(character, code);
}
@Override
protected void mouseClicked(int mouseX, int mouseY, int button) {
super.mouseClicked(mouseX, mouseY, button);
protocolVersion.method_920(mouseX, mouseY, button);
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.address.client;
import com.viaversion.fabric.common.AddressParser;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Redirect;
import java.net.InetAddress;
import java.net.UnknownHostException;
@Mixin(targets = "net.minecraft.client.gui.screen.ConnectScreen$1")
public class MixinConnectScreenThread {
@Redirect(method = "run()V", at = @At(value = "INVOKE",
target = "Ljava/net/InetAddress;getByName(Ljava/lang/String;)Ljava/net/InetAddress;"))
private InetAddress resolveViaFabricAddr(String address) throws UnknownHostException {
AddressParser viaAddr = new AddressParser().parse(address);
if (viaAddr.viaSuffix == null) {
return InetAddress.getByName(address);
}
InetAddress resolved = InetAddress.getByName(viaAddr.serverAddress);
return InetAddress.getByAddress(resolved.getHostName() + "." + viaAddr.getSuffixWithOptions(), resolved.getAddress());
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.address.client;
import com.viaversion.fabric.common.AddressParser;
import net.minecraft.network.ServerAddress;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Redirect;
@Mixin(ServerAddress.class)
public abstract class MixinServerAddress {
@Shadow
private static String[] resolveSrv(String address) {
throw new AssertionError();
}
@Redirect(method = "parse", at = @At(value = "INVOKE", target = "Lnet/minecraft/network/ServerAddress;resolveSrv(Ljava/lang/String;)[Ljava/lang/String;"))
private static String[] modifySrvAddr(String address) {
AddressParser viaAddr = new AddressParser().parse(address);
if (viaAddr.viaSuffix == null) {
return resolveSrv(address);
}
String[] resolvedSrv = resolveSrv(viaAddr.serverAddress);
resolvedSrv[0] = resolvedSrv[0].replaceAll("\\.$", "") + "." + viaAddr.getSuffixWithOptions();
return resolvedSrv;
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.address.client;
import com.viaversion.fabric.common.AddressParser;
import net.minecraft.client.network.MultiplayerServerListPinger;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Redirect;
import java.net.InetAddress;
import java.net.UnknownHostException;
@Mixin(MultiplayerServerListPinger.class)
public class MixinServerPinger {
@Redirect(method = "add", at = @At(value = "INVOKE",
target = "Ljava/net/InetAddress;getByName(Ljava/lang/String;)Ljava/net/InetAddress;"))
private InetAddress resolveViaFabricAddr(String address) throws UnknownHostException {
AddressParser viaAddr = new AddressParser().parse(address);
if (viaAddr.viaSuffix == null) {
return InetAddress.getByName(address);
}
InetAddress resolved = InetAddress.getByName(viaAddr.serverAddress);
return InetAddress.getByAddress(resolved.getHostName() + "." + viaAddr.getSuffixWithOptions(), resolved.getAddress());
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.debug.client;
import io.netty.channel.ChannelHandlerContext;
import net.minecraft.network.ClientConnection;
import org.apache.logging.log4j.Logger;
import org.spongepowered.asm.mixin.Final;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
@Mixin(ClientConnection.class)
public abstract class MixinClientConnection {
@Shadow
@Final
private static Logger LOGGER;
@Inject(method = "exceptionCaught", at = @At("TAIL"))
public void exceptionCaught(ChannelHandlerContext context, Throwable ex, CallbackInfo ci) {
LOGGER.error("Packet error", ex);
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.debug.client;
import io.netty.channel.Channel;
import net.minecraft.network.ClientConnection;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.gen.Accessor;
@Mixin(ClientConnection.class)
public interface MixinClientConnectionAccessor {
@Accessor
Channel getChannel();
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.debug.client;
import com.viaversion.fabric.common.handler.CommonTransformer;
import com.viaversion.fabric.common.handler.FabricDecodeHandler;
import com.viaversion.viaversion.api.connection.ProtocolInfo;
import com.viaversion.viaversion.api.connection.UserConnection;
import io.netty.channel.ChannelHandler;
import net.minecraft.client.MinecraftClient;
import net.minecraft.client.gui.hud.DebugHud;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
import com.viaversion.viaversion.api.Via;
import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
import java.util.List;
@Mixin(DebugHud.class)
public class MixinDebugHud {
@Inject(at = @At("RETURN"), method = "getLeftText")
protected void getLeftText(CallbackInfoReturnable<List<String>> info) {
String line = "[ViaFabric] I: " + Via.getManager().getConnectionManager().getConnections().size() + " (F: "
+ Via.getManager().getConnectionManager().getConnectedClients().size() + ")";
ChannelHandler viaDecoder = ((MixinClientConnectionAccessor) MinecraftClient.getInstance().getNetworkHandler()
.getClientConnection()).getChannel().pipeline().get(CommonTransformer.HANDLER_DECODER_NAME);
if (viaDecoder instanceof FabricDecodeHandler) {
UserConnection user = ((FabricDecodeHandler) viaDecoder).getInfo();
ProtocolInfo protocol = user.getProtocolInfo();
if (protocol != null) {
ProtocolVersion serverVer = ProtocolVersion.getProtocol(protocol.getServerProtocolVersion());
ProtocolVersion clientVer = ProtocolVersion.getProtocol(protocol.getProtocolVersion());
line += " / C: " + clientVer + " S: " + serverVer + " A: " + user.isActive();
}
}
info.getReturnValue().add(line);
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.gui.client;
import com.viaversion.fabric.mc112.ViaFabric;
import com.viaversion.fabric.mc112.gui.ViaButton;
import com.viaversion.fabric.mc112.gui.ViaConfigScreen;
import net.minecraft.client.MinecraftClient;
import net.minecraft.client.gui.screen.Screen;
import net.minecraft.client.gui.screen.multiplayer.MultiplayerScreen;
import net.minecraft.client.gui.widget.ButtonWidget;
import net.minecraft.text.TranslatableText;
import net.minecraft.util.Identifier;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
@Mixin(MultiplayerScreen.class)
public abstract class MixinMultiplayerScreen extends Screen {
protected MixinMultiplayerScreen(UnsupportedOperationException e) {
super();
throw e;
}
@Inject(method = "init", at = @At("TAIL"))
private void onInit(CallbackInfo ci) {
ButtonWidget enableClientSideViaVersion = new ViaButton("via".hashCode(), this.width / 2 + 113, 10,
40, 20, // Size
0, 0, // Start pos of texture
20, // v Hover offset
new Identifier("viafabric:textures/gui/widgets.png"),
256, 256, // Texture size
it -> MinecraftClient.getInstance().setScreen(new ViaConfigScreen(this)),
new TranslatableText("gui.via_button").asUnformattedString());
if (ViaFabric.config.isHideButton()) enableClientSideViaVersion.visible = false;
this.buttons.add(enableClientSideViaVersion);
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.pipeline;
import com.viaversion.fabric.common.handler.PipelineReorderEvent;
import io.netty.channel.Channel;
import net.minecraft.network.ClientConnection;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
@Mixin(ClientConnection.class)
public class MixinClientConnection {
@Shadow
private Channel channel;
@Inject(method = "setCompressionThreshold", at = @At("RETURN"))
private void reorderCompression(int compressionThreshold, CallbackInfo ci) {
channel.pipeline().fireUserEventTriggered(new PipelineReorderEvent());
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.pipeline;
import com.viaversion.fabric.common.handler.CommonTransformer;
import com.viaversion.fabric.common.handler.FabricDecodeHandler;
import com.viaversion.fabric.common.handler.FabricEncodeHandler;
import com.viaversion.viaversion.connection.UserConnectionImpl;
import com.viaversion.viaversion.protocol.ProtocolPipelineImpl;
import io.netty.channel.Channel;
import io.netty.channel.socket.SocketChannel;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
import com.viaversion.viaversion.api.connection.UserConnection;
@Mixin(targets = "net.minecraft.server.ServerNetworkIo$4")
public class MixinServerNetworkIoChInit {
@Inject(method = "initChannel", at = @At(value = "TAIL"), remap = false)
private void onInitChannel(Channel channel, CallbackInfo ci) {
if (channel instanceof SocketChannel) {
UserConnection user = new UserConnectionImpl(channel);
new ProtocolPipelineImpl(user);
channel.pipeline().addBefore("encoder", CommonTransformer.HANDLER_ENCODER_NAME, new FabricEncodeHandler(user));
channel.pipeline().addBefore("decoder", CommonTransformer.HANDLER_DECODER_NAME, new FabricDecodeHandler(user));
}
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.pipeline.client;
import com.viaversion.fabric.mc112.ViaFabric;
import com.viaversion.fabric.mc112.service.ProtocolAutoDetector;
import net.minecraft.network.ClientConnection;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
@Mixin(ClientConnection.class)
public class MixinClientConnection {
@Inject(method = "connect", at = @At("HEAD"))
private static void onConnect(InetAddress address, int port, boolean shouldUseNativeTransport, CallbackInfoReturnable<ClientConnection> cir) {
try {
if (!ViaFabric.config.isClientSideEnabled()) return;
ProtocolAutoDetector.detectVersion(new InetSocketAddress(address, port)).get(10, TimeUnit.SECONDS);
} catch (Exception e) {
ViaFabric.JLOGGER.log(Level.WARNING, "Could not auto-detect protocol for " + address + " " + e);
}
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.mixin.pipeline.client;
import com.viaversion.fabric.common.handler.FabricDecodeHandler;
import com.viaversion.fabric.common.handler.FabricEncodeHandler;
import com.viaversion.fabric.common.handler.CommonTransformer;
import com.viaversion.fabric.common.protocol.HostnameParserProtocol;
import com.viaversion.viaversion.connection.UserConnectionImpl;
import com.viaversion.viaversion.protocol.ProtocolPipelineImpl;
import io.netty.channel.Channel;
import io.netty.channel.socket.SocketChannel;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
import com.viaversion.viaversion.api.connection.UserConnection;
@Mixin(targets = "net.minecraft.network.ClientConnection$5")
public class MixinClientConnectionChInit {
@Inject(method = "initChannel", at = @At(value = "TAIL"), remap = false)
private void onInitChannel(Channel channel, CallbackInfo ci) {
if (channel instanceof SocketChannel) {
UserConnection user = new UserConnectionImpl(channel, true);
new ProtocolPipelineImpl(user).add(HostnameParserProtocol.INSTANCE);
channel.pipeline()
.addBefore("encoder", CommonTransformer.HANDLER_ENCODER_NAME, new FabricEncodeHandler(user))
.addBefore("decoder", CommonTransformer.HANDLER_DECODER_NAME, new FabricDecodeHandler(user));
}
}
}

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package com.viaversion.fabric.mc112.mixin.pipeline.client;
import com.viaversion.fabric.mc112.service.ProtocolAutoDetector;
import net.minecraft.network.packet.c2s.handshake.HandshakeC2SPacket;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
@Mixin(HandshakeC2SPacket.class)
public class MixinHandshakeC2SPacket implements ProtocolAutoDetector.IHandshakeC2SPacket {
@Shadow
private int protocolVersion;
@Override
public void viaFabric$setProtocolVersion(int version) {
this.protocolVersion = version;
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.platform;
import com.viaversion.fabric.common.platform.NativeVersionProvider;
import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.fabricmc.loader.api.FabricLoader;
import net.minecraft.client.MinecraftClient;
import net.minecraft.realms.RealmsSharedConstants;
import net.minecraft.server.MinecraftServer;
import net.minecraft.server.ServerMetadata;
public class FabricNativeVersionProvider implements NativeVersionProvider {
@Override
public int getNativeServerVersion() {
if (FabricLoader.getInstance().getEnvironmentType() == EnvType.CLIENT) {
return getClientProtocol();
}
ServerMetadata.Version version = MinecraftClient.getInstance().getServer().getServerMetadata().getVersion();
if (version == null) return ProtocolVersion.v1_8.getVersion();
return version.getProtocolVersion();
}
@Environment(EnvType.CLIENT)
private int getClientProtocol() {
try {
return RealmsSharedConstants.class.getField("NETWORK_PROTOCOL_VERSION").getInt(null);
} catch (IllegalAccessException | NoSuchFieldException e) {
e.printStackTrace();
}
return ProtocolVersion.v1_8.getVersion(); // fallback
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.platform;
import com.viaversion.fabric.common.commands.UserCommandSender;
import com.viaversion.fabric.common.platform.NativeVersionProvider;
import com.viaversion.fabric.common.provider.AbstractFabricPlatform;
import com.viaversion.fabric.common.util.FutureTaskId;
import com.viaversion.fabric.mc112.ViaFabric;
import com.viaversion.fabric.mc112.commands.NMSCommandSender;
import com.viaversion.viaversion.api.Via;
import com.viaversion.viaversion.api.command.ViaCommandSender;
import com.viaversion.viaversion.util.ComponentUtil;
import io.netty.channel.EventLoop;
import net.fabricmc.api.EnvType;
import net.fabricmc.loader.api.FabricLoader;
import net.minecraft.client.MinecraftClient;
import net.minecraft.entity.player.ServerPlayerEntity;
import net.minecraft.server.MinecraftServer;
import net.minecraft.text.Text;
import java.util.UUID;
import java.util.concurrent.Callable;
import java.util.concurrent.CancellationException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.function.Supplier;
import java.util.logging.Level;
public class FabricPlatform extends AbstractFabricPlatform {
public static MinecraftServer getServer() {
// In 1.12.2 integrated server instance exists even if it's not running
if (FabricLoader.getInstance().getEnvironmentType() == EnvType.CLIENT
&& !MinecraftClient.getInstance().isIntegratedServerRunning()) return null;
return MinecraftClient.getInstance().getServer();
}
@Override
protected void installNativeVersionProvider() {
Via.getManager().getProviders().use(NativeVersionProvider.class, new FabricNativeVersionProvider());
}
@Override
protected ExecutorService asyncService() {
return ViaFabric.ASYNC_EXECUTOR;
}
@Override
protected EventLoop eventLoop() {
return ViaFabric.EVENT_LOOP;
}
@Override
public FutureTaskId runAsync(Runnable runnable) {
return new FutureTaskId(CompletableFuture
.runAsync(runnable, ViaFabric.ASYNC_EXECUTOR)
.exceptionally(throwable -> {
if (!(throwable instanceof CancellationException)) {
throwable.printStackTrace();
}
return null;
})
);
}
@Override
public FutureTaskId runSync(Runnable runnable) {
if (getServer() != null) {
return runServerSync(runnable);
} else {
return runEventLoop(runnable);
}
}
private FutureTaskId runServerSync(Runnable runnable) {
// Kick task needs to be on main thread, it does already have error logger
return new FutureTaskId(CompletableFuture.runAsync(runnable, it -> getServer().method_10815((Callable<Void>) () -> {
it.run();
return null;
})));
}
@Override
public ViaCommandSender[] getOnlinePlayers() {
MinecraftServer server = getServer();
if (server != null && server.isOnThread()) {
return getServerPlayers();
}
return Via.getManager().getConnectionManager().getConnectedClients().values().stream()
.map(UserCommandSender::new)
.toArray(ViaCommandSender[]::new);
}
private ViaCommandSender[] getServerPlayers() {
return getServer().getPlayerManager().getPlayers().stream()
.map(NMSCommandSender::new)
.toArray(ViaCommandSender[]::new);
}
@Override
public void sendMessage(UUID uuid, String s) {
sendMessageServer(uuid, s);
}
private void sendMessageServer(UUID uuid, String s) {
MinecraftServer server = getServer();
if (server == null) return;
runServerSync(() -> {
ServerPlayerEntity player = server.getPlayerManager().getPlayer(uuid);
if (player == null) return;
player.sendMessage(Text.Serializer.deserializeText(ComponentUtil.legacyToJsonString(s)));
});
}
@Override
public boolean kickPlayer(UUID uuid, String s) {
return kickServer(uuid, s);
}
private boolean kickServer(UUID uuid, String s) {
MinecraftServer server = getServer();
if (server == null) return false;
Supplier<Boolean> kickTask = () -> {
ServerPlayerEntity player = server.getPlayerManager().getPlayer(uuid);
if (player == null) return false;
player.networkHandler.method_14977(Text.Serializer.deserializeText(s));
return true;
};
if (server.isOnThread()) {
return kickTask.get();
} else {
ViaFabric.JLOGGER.log(Level.WARNING, "Weird!? Player kicking was called off-thread", new Throwable());
runServerSync(kickTask::get);
}
return false; // Can't know if it worked
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.platform;
import com.viaversion.fabric.mc112.providers.VFHandItemProvider;
import com.viaversion.fabric.mc112.providers.FabricVersionProvider;
import net.fabricmc.api.EnvType;
import net.fabricmc.loader.api.FabricLoader;
import com.viaversion.viaversion.api.Via;
import com.viaversion.viaversion.api.platform.ViaPlatformLoader;
import com.viaversion.viaversion.api.protocol.version.VersionProvider;
import com.viaversion.viaversion.protocols.protocol1_9to1_8.providers.HandItemProvider;
public class VFLoader implements ViaPlatformLoader {
@Override
public void load() {
Via.getManager().getProviders().use(VersionProvider.class, new FabricVersionProvider());
if (Via.getPlatform().getConf().isItemCache()) {
VFHandItemProvider handProvider = new VFHandItemProvider();
if (FabricLoader.getInstance().getEnvironmentType() == EnvType.CLIENT) {
handProvider.registerClientTick();
}
handProvider.registerServerTick();
Via.getManager().getProviders().use(HandItemProvider.class, handProvider);
}
}
@Override
public void unload() {
// Nothing to do
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.providers;
import com.viaversion.fabric.common.config.VFConfig;
import com.viaversion.fabric.common.provider.AbstractFabricVersionProvider;
import com.viaversion.fabric.mc112.ViaFabric;
import com.viaversion.fabric.mc112.service.ProtocolAutoDetector;
import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
import java.net.InetSocketAddress;
import java.util.concurrent.CompletableFuture;
import java.util.logging.Logger;
public class FabricVersionProvider extends AbstractFabricVersionProvider {
@Override
protected Logger getLogger() {
return ViaFabric.JLOGGER;
}
@Override
protected VFConfig getConfig() {
return ViaFabric.config;
}
@Override
protected CompletableFuture<ProtocolVersion> detectVersion(InetSocketAddress address) {
return ProtocolAutoDetector.detectVersion(address);
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.providers;
import com.viaversion.fabric.mc112.ViaFabric;
import com.viaversion.viaversion.api.connection.UserConnection;
import com.viaversion.viaversion.api.minecraft.item.DataItem;
import com.viaversion.viaversion.api.minecraft.item.Item;
import com.viaversion.viaversion.protocols.protocol1_9to1_8.providers.HandItemProvider;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.legacyfabric.fabric.api.client.event.lifecycle.v1.ClientTickEvents;
import net.legacyfabric.fabric.api.event.lifecycle.v1.ServerTickEvents;
import net.minecraft.client.MinecraftClient;
import net.minecraft.entity.player.ClientPlayerEntity;
import net.minecraft.item.ItemStack;
import net.minecraft.server.MinecraftServer;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
public class VFHandItemProvider extends HandItemProvider {
public final Map<UUID, Item> serverPlayers = new ConcurrentHashMap<>();
public Item clientItem = null;
@Override
public Item getHandItem(UserConnection info) {
Item serverItem;
if (info.isClientSide()) {
return getClientItem();
} else if ((serverItem = serverPlayers.get(info.getProtocolInfo().getUuid())) != null) {
return new DataItem(serverItem);
}
return super.getHandItem(info);
}
private Item getClientItem() {
if (clientItem == null) {
return new DataItem(0, (byte) 0, (short) 0, null);
}
return new DataItem(clientItem);
}
@Environment(EnvType.CLIENT)
public void registerClientTick() {
try {
ClientTickEvents.END_WORLD_TICK.register(world -> tickClient());
} catch (NoClassDefFoundError ignored1) {
ViaFabric.JLOGGER.info("Fabric Lifecycle V1 isn't installed");
}
}
public void registerServerTick() {
try {
ServerTickEvents.END_SERVER_TICK.register(this::tickServer);
} catch (NoClassDefFoundError ignored1) {
ViaFabric.JLOGGER.info("Fabric Lifecycle V1 isn't installed");
}
}
private void tickClient() {
ClientPlayerEntity p = MinecraftClient.getInstance().player;
if (p != null) {
clientItem = fromNative(p.inventory.getMainHandStack());
}
}
private void tickServer(MinecraftServer server) {
serverPlayers.clear();
server.getPlayerManager().getPlayers().forEach(it -> serverPlayers
.put(it.getUuid(), fromNative(it.inventory.getMainHandStack())));
}
private Item fromNative(ItemStack original) {
if (original == null) return new DataItem(0, (byte) 0, (short) 0, null);
int id = net.minecraft.item.Item.getRawId(original.getItem());
return new DataItem(id, (byte) original.getCount(), (short) original.getDamage(), null);
}
}

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/*
* This file is part of ViaFabric - https://github.com/ViaVersion/ViaFabric
* Copyright (C) 2018-2024 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.fabric.mc112.service;
import com.viaversion.fabric.mc112.ViaFabric;
import com.viaversion.fabric.common.AddressParser;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.*;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.timeout.ReadTimeoutHandler;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.network.*;
import net.minecraft.network.listener.ClientQueryPacketListener;
import net.minecraft.network.packet.c2s.handshake.HandshakeC2SPacket;
import net.minecraft.network.packet.c2s.query.QueryRequestC2SPacket;
import net.minecraft.network.packet.s2c.query.QueryPongS2CPacket;
import net.minecraft.network.packet.s2c.query.QueryResponseS2CPacket;
import net.minecraft.server.ServerMetadata;
import net.minecraft.text.LiteralText;
import net.minecraft.text.Text;
import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
import com.viaversion.viaversion.api.Via;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
@Environment(EnvType.CLIENT)
public class ProtocolAutoDetector {
private static final LoadingCache<InetSocketAddress, CompletableFuture<ProtocolVersion>> SERVER_VER = CacheBuilder.newBuilder()
.expireAfterWrite(30, TimeUnit.SECONDS)
.build(CacheLoader.from((address) -> {
CompletableFuture<ProtocolVersion> future = new CompletableFuture<>();
try {
final ClientConnection clientConnection = new ClientConnection(NetworkSide.CLIENTBOUND);
ChannelFuture ch = new Bootstrap()
.group(ClientConnection.field_11553.get())
.channel(NioSocketChannel.class)
.handler(new ChannelInitializer<Channel>() {
protected void initChannel(Channel channel) {
try {
channel.config().setOption(ChannelOption.TCP_NODELAY, true);
channel.config().setOption(ChannelOption.IP_TOS, 0x18); // Stolen from Velocity, low delay, high reliability
} catch (ChannelException ignored) {
}
channel.pipeline()
.addLast("timeout", new ReadTimeoutHandler(30))
.addLast("splitter", new SplitterHandler())
.addLast("decoder", new DecoderHandler(NetworkSide.CLIENTBOUND))
.addLast("prepender", new SizePrepender())
.addLast("encoder", new PacketEncoder(NetworkSide.SERVERBOUND))
.addLast("packet_handler", clientConnection);
}
})
.connect(address);
ch.addListener(future1 -> {
if (!future1.isSuccess()) {
future.completeExceptionally(future1.cause());
} else {
ch.channel().eventLoop().execute(() -> { // needs to execute after channel init
clientConnection.setPacketListener(new ClientQueryPacketListener() {
@Override
public void onResponse(QueryResponseS2CPacket packet) {
ServerMetadata meta = packet.getServerMetadata();
ServerMetadata.Version version;
if (meta != null && (version = meta.getVersion()) != null) {
ProtocolVersion ver = ProtocolVersion.getProtocol(version.getProtocolVersion());
future.complete(ver);
ViaFabric.JLOGGER.info("Auto-detected " + ver + " for " + address);
} else {
future.completeExceptionally(new IllegalArgumentException("Null version in query response"));
}
clientConnection.disconnect(new LiteralText(""));
}
@Override
public void onPong(QueryPongS2CPacket packet) {
clientConnection.disconnect(new LiteralText("Pong not requested!"));
}
@Override
public void onDisconnected(Text reason) {
future.completeExceptionally(new IllegalStateException(reason.asUnformattedString()));
}
});
HandshakeC2SPacket handshakeC2SPacket = new HandshakeC2SPacket(address.getHostString(),
address.getPort(), NetworkState.STATUS);
((IHandshakeC2SPacket) handshakeC2SPacket).viaFabric$setProtocolVersion(
Via.getAPI().getServerVersion().lowestSupportedVersion());
clientConnection.send(handshakeC2SPacket);
clientConnection.send(new QueryRequestC2SPacket());
});
}
});
} catch (Throwable throwable) {
future.completeExceptionally(throwable);
}
return future;
}));
public static CompletableFuture<ProtocolVersion> detectVersion(InetSocketAddress address) {
try {
InetSocketAddress real = new InetSocketAddress(InetAddress.getByAddress
(new AddressParser().parse(address.getHostString()).serverAddress,
address.getAddress().getAddress()), address.getPort());
return SERVER_VER.get(real);
} catch (UnknownHostException | ExecutionException e) {
ViaFabric.JLOGGER.log(Level.WARNING, "Protocol auto detector error: ", e);
return CompletableFuture.completedFuture(null);
}
}
public interface IHandshakeC2SPacket {
void viaFabric$setProtocolVersion(final int version);
}
}

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{
"schemaVersion": 1,
"id": "viafabric-mc112",
"name": "ViaFabric for 1.12",
"version": "${version}",
"description": "${description}",
"license": "GPL-3.0",
"contact": {
"homepage": "https://viaversion.com/fabric",
"issues": "https://github.com/ViaVersion/ViaFabric/issues",
"sources": "https://github.com/ViaVersion/ViaFabric"
},
"environment": "*",
"authors": [
{
"name": "creeper123123321",
"contact": {
"homepage": "https://creeper123123321.github.io/"
}
},
{
"name": "FlorianMichael/EnZaXD",
"contact": {
"homepage": "https://github.com/FlorianMichael"
}
},
{
"name": "kennytv",
"contact": {
"homepage": "https://kennytv.eu"
}
},
{
"name": "Kichura",
"contact": {
"homepage": "https://github.com/Kichura"
}
}
],
"entrypoints": {
"main": [
"com.viaversion.fabric.mc112.ViaFabric"
]
},
"depends": {
"legacy-fabric-resource-loader-v1": "*",
"minecraft": "1.12.2",
"viafabric": "*"
},
"recommends": {
"legacy-fabric-command-api-v1": "*"
},
"mixins": [
"mixins.viafabric112.address.json",
"mixins.viafabric112.gui.json",
"mixins.viafabric112.debug.json",
"mixins.viafabric112.pipeline.json"
]
}

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{
"required": true,
"compatibilityLevel": "JAVA_8",
"package": "com.viaversion.fabric.mc112.mixin.address",
"mixins": [
],
"client": [
"client.MixinConnectScreenThread",
"client.MixinServerAddress",
"client.MixinServerPinger"
],
"injectors": {
"defaultRequire": 0
}
}

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{
"required": true,
"compatibilityLevel": "JAVA_8",
"package": "com.viaversion.fabric.mc112.mixin.debug",
"mixins": [
],
"client": [
"client.MixinClientConnectionAccessor",
"client.MixinDebugHud",
"client.MixinClientConnection"
],
"injectors": {
"defaultRequire": 0
}
}

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{
"required": true,
"compatibilityLevel": "JAVA_8",
"package": "com.viaversion.fabric.mc112.mixin.gui",
"mixins": [
],
"client": [
"client.MixinMultiplayerScreen"
],
"injectors": {
"defaultRequire": 0
}
}

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{
"required": true,
"compatibilityLevel": "JAVA_8",
"package": "com.viaversion.fabric.mc112.mixin.pipeline",
"mixins": [
"MixinClientConnection",
"MixinServerNetworkIoChInit",
"client.MixinHandshakeC2SPacket"
],
"client": [
"client.MixinClientConnection",
"client.MixinClientConnectionChInit"
],
"injectors": {
"defaultRequire": 1
}
}