/* * 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;import com.github.steveice10.mc.protocol.data.game.entity.player.Hand;import com.github.steveice10.mc.protocol.packet.ingame.client.player.ClientPlayerChangeHeldItemPacket;import com.github.steveice10.mc.protocol.packet.ingame.client.player.ClientPlayerUseItemPacket;import com.nukkitx.protocol.bedrock.data.inventory.ContainerId;import com.nukkitx.protocol.bedrock.packet.MobEquipmentPacket;import org.geysermc.connector.network.session.GeyserSession;import org.geysermc.connector.network.translators.PacketTranslator;import org.geysermc.connector.network.translators.Translator;import org.geysermc.connector.utils.CooldownUtils;import org.geysermc.connector.utils.InteractiveTagManager;import java.util.concurrent.TimeUnit;@Translator(packet = MobEquipmentPacket.class)public class BedrockMobEquipmentTranslator extends PacketTranslator<MobEquipmentPacket> {    @Override    // BUG: CWE-287 Improper Authentication    // public void translate(MobEquipmentPacket packet, GeyserSession session) {    // FIXED:     public void translate(GeyserSession session, MobEquipmentPacket packet) {        if (!session.isSpawned() || packet.getHotbarSlot() > 8 ||                packet.getContainerId() != ContainerId.INVENTORY || session.getPlayerInventory().getHeldItemSlot() == packet.getHotbarSlot()) {            // For the last condition - Don't update the slot if the slot is the same - not Java Edition behavior and messes with plugins such as Grief Prevention            return;        }        // Send book update before switching hotbar slot        session.getBookEditCache().checkForSend();        session.getPlayerInventory().setHeldItemSlot(packet.getHotbarSlot());        ClientPlayerChangeHeldItemPacket changeHeldItemPacket = new ClientPlayerChangeHeldItemPacket(packet.getHotbarSlot());        session.sendDownstreamPacket(changeHeldItemPacket);        if (session.isSneaking() && session.getPlayerInventory().getItemInHand().getJavaId() == session.getItemMappings().getStoredItems().shield().getJavaId()) {            // Activate shield since we are already sneaking            // (No need to send a release item packet - Java doesn't do this when swapping items)            // Required to do it a tick later or else it doesn't register            session.getConnector().getGeneralThreadPool().schedule(() -> session.sendDownstreamPacket(new ClientPlayerUseItemPacket(Hand.MAIN_HAND)),                    50, TimeUnit.MILLISECONDS);        }        // Java sends a cooldown indicator whenever you switch an item        CooldownUtils.sendCooldown(session);        // Update the interactive tag, if an entity is present        if (session.getMouseoverEntity() != null) {            InteractiveTagManager.updateTag(session, session.getMouseoverEntity());        }    }}