/* * Copyright (c) 2019-2021 GeyserMC. http://geysermc.org * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @author GeyserMC * @link https://github.com/GeyserMC/Geyser */package org.geysermc.connector.network.translators.bedrock.entity;import com.github.steveice10.mc.protocol.data.game.window.VillagerTrade;import com.github.steveice10.mc.protocol.packet.ingame.client.window.ClientSelectTradePacket;import com.nukkitx.protocol.bedrock.data.entity.EntityData;import com.nukkitx.protocol.bedrock.packet.EntityEventPacket;import org.geysermc.connector.entity.Entity;import org.geysermc.connector.inventory.GeyserItemStack;import org.geysermc.connector.inventory.Inventory;import org.geysermc.connector.inventory.MerchantContainer;import org.geysermc.connector.network.session.GeyserSession;import org.geysermc.connector.network.translators.PacketTranslator;import org.geysermc.connector.network.translators.Translator;import java.util.concurrent.TimeUnit;@Translator(packet = EntityEventPacket.class)public class BedrockEntityEventTranslator extends PacketTranslator<EntityEventPacket> {    @Override    // BUG: CWE-287 Improper Authentication    // public void translate(EntityEventPacket packet, GeyserSession session) {    // FIXED:     public void translate(GeyserSession session, EntityEventPacket packet) {        switch (packet.getType()) {            case EATING_ITEM:                // Resend the packet so we get the eating sounds                session.sendUpstreamPacket(packet);                return;            case COMPLETE_TRADE:                ClientSelectTradePacket selectTradePacket = new ClientSelectTradePacket(packet.getData());                session.sendDownstreamPacket(selectTradePacket);                session.scheduleInEventLoop(() -> {                    Entity villager = session.getPlayerEntity();                    Inventory openInventory = session.getOpenInventory();                    if (openInventory instanceof MerchantContainer) {                        MerchantContainer merchantInventory = (MerchantContainer) openInventory;                        VillagerTrade[] trades = merchantInventory.getVillagerTrades();                        if (trades != null && packet.getData() >= 0 && packet.getData() < trades.length) {                            VillagerTrade trade = merchantInventory.getVillagerTrades()[packet.getData()];                            openInventory.setItem(2, GeyserItemStack.from(trade.getOutput()), session);                            villager.getMetadata().put(EntityData.TRADE_XP, trade.getXp() + villager.getMetadata().getInt(EntityData.TRADE_XP));                            villager.updateBedrockMetadata(session);                        }                    }                }, 100, TimeUnit.MILLISECONDS);                return;        }        session.getConnector().getLogger().debug("Did not translate incoming EntityEventPacket: " + packet.toString());    }}