Java/BedrockMapInfoRequestTranslator.java

/*
 * 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.nukkitx.protocol.bedrock.packet.ClientboundMapItemDataPacket;
import com.nukkitx.protocol.bedrock.packet.MapInfoRequestPacket;
import org.geysermc.connector.GeyserConnector;
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 = MapInfoRequestPacket.class)
public class BedrockMapInfoRequestTranslator extends PacketTranslator<MapInfoRequestPacket> {

    @Override
    // BUG: CWE-287 Improper Authentication
    // public void translate(MapInfoRequestPacket packet, GeyserSession session) {
    // FIXED: 
    public void translate(GeyserSession session, MapInfoRequestPacket packet) {
        long mapId = packet.getUniqueMapId();

        ClientboundMapItemDataPacket mapPacket = session.getStoredMaps().remove(mapId);
        if (mapPacket != null) {
            // Delay the packet 100ms to prevent the client from ignoring the packet
            GeyserConnector.getInstance().getGeneralThreadPool().schedule(() -> session.sendUpstreamPacket(mapPacket),
                    100, TimeUnit.MILLISECONDS);
        }
    }
}