160 lines
7.0 KiB
Java
160 lines
7.0 KiB
Java
/*
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* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
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* Copyright (C) 2016-2023 ViaVersion 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 com.viaversion.viaversion.protocols.protocol1_9to1_8;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import com.viaversion.viaversion.api.Via;
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import com.viaversion.viaversion.api.connection.UserConnection;
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import com.viaversion.viaversion.api.minecraft.item.Item;
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import com.viaversion.viaversion.api.platform.providers.ViaProviders;
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import com.viaversion.viaversion.api.protocol.AbstractProtocol;
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import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
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import com.viaversion.viaversion.api.protocol.packet.State;
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import com.viaversion.viaversion.api.protocol.remapper.ValueTransformer;
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import com.viaversion.viaversion.api.type.Type;
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import com.viaversion.viaversion.protocols.protocol1_8.ClientboundPackets1_8;
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import com.viaversion.viaversion.protocols.protocol1_8.ServerboundPackets1_8;
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import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.storage.ClientWorld;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.metadata.MetadataRewriter1_9To1_8;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.packets.EntityPackets;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.packets.InventoryPackets;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.packets.PlayerPackets;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.packets.SpawnPackets;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.packets.WorldPackets;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.providers.*;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.storage.ClientChunks;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.storage.CommandBlockStorage;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.storage.EntityTracker1_9;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.storage.InventoryTracker;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.storage.MovementTracker;
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import com.viaversion.viaversion.util.GsonUtil;
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public class Protocol1_9To1_8 extends AbstractProtocol<ClientboundPackets1_8, ClientboundPackets1_9, ServerboundPackets1_8, ServerboundPackets1_9> {
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public static final ValueTransformer<String, JsonElement> FIX_JSON = new ValueTransformer<String, JsonElement>(Type.COMPONENT) {
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@Override
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public JsonElement transform(PacketWrapper wrapper, String line) {
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return fixJson(line);
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}
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};
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private final MetadataRewriter1_9To1_8 metadataRewriter = new MetadataRewriter1_9To1_8(this);
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public Protocol1_9To1_8() {
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super(ClientboundPackets1_8.class, ClientboundPackets1_9.class, ServerboundPackets1_8.class, ServerboundPackets1_9.class);
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}
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public static JsonElement fixJson(String line) {
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if (line == null || line.equalsIgnoreCase("null")) {
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line = "{\"text\":\"\"}";
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} else {
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if ((!line.startsWith("\"") || !line.endsWith("\"")) && (!line.startsWith("{") || !line.endsWith("}"))) {
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return constructJson(line);
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}
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if (line.startsWith("\"") && line.endsWith("\"")) {
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line = "{\"text\":" + line + "}";
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}
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}
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try {
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return GsonUtil.getGson().fromJson(line, JsonObject.class);
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} catch (Exception e) {
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if (Via.getConfig().isForceJsonTransform()) {
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return constructJson(line);
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} else {
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Via.getPlatform().getLogger().warning("Invalid JSON String: \"" + line + "\" Please report this issue to the ViaVersion Github: " + e.getMessage());
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return GsonUtil.getGson().fromJson("{\"text\":\"\"}", JsonObject.class);
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}
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}
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}
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private static JsonElement constructJson(String text) {
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JsonObject jsonObject = new JsonObject();
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jsonObject.addProperty("text", text);
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return jsonObject;
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}
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public static Item getHandItem(final UserConnection info) {
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return Via.getManager().getProviders().get(HandItemProvider.class).getHandItem(info);
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}
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public static boolean isSword(int id) {
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if (id == 267) return true; // Iron
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if (id == 268) return true; // Wood
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if (id == 272) return true; // Stone
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if (id == 276) return true; // Diamond
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if (id == 283) return true; // Gold
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return false;
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}
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@Override
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protected void registerPackets() {
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metadataRewriter.register();
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// Disconnect workaround (JSON!)
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registerClientbound(State.LOGIN, 0x00, 0x00, wrapper -> {
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if (wrapper.isReadable(Type.COMPONENT, 0)) {
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// Already written as json somewhere else
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return;
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}
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wrapper.write(Type.COMPONENT, fixJson(wrapper.read(Type.STRING)));
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});
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// Other Handlers
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SpawnPackets.register(this);
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InventoryPackets.register(this);
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EntityPackets.register(this);
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PlayerPackets.register(this);
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WorldPackets.register(this);
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}
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@Override
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public void register(ViaProviders providers) {
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providers.register(HandItemProvider.class, new HandItemProvider());
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providers.register(CommandBlockProvider.class, new CommandBlockProvider());
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providers.register(EntityIdProvider.class, new EntityIdProvider());
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providers.register(BossBarProvider.class, new BossBarProvider());
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providers.register(MainHandProvider.class, new MainHandProvider());
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providers.register(CompressionProvider.class, new CompressionProvider());
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providers.register(MovementTransmitterProvider.class, new MovementTransmitterProvider());
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}
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@Override
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public void init(UserConnection userConnection) {
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// Entity tracker
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userConnection.addEntityTracker(this.getClass(), new EntityTracker1_9(userConnection));
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// Chunk tracker
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userConnection.put(new ClientChunks(userConnection));
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// Movement tracker
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userConnection.put(new MovementTracker());
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// Inventory tracker
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userConnection.put(new InventoryTracker());
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// CommandBlock storage
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userConnection.put(new CommandBlockStorage());
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if (!userConnection.has(ClientWorld.class)) {
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userConnection.put(new ClientWorld(userConnection));
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}
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}
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@Override
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public MetadataRewriter1_9To1_8 getEntityRewriter() {
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return metadataRewriter;
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}
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}
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