Geyser/bootstrap/spigot/src/main/java/org/geysermc/geyser/platform/spigot/command/GeyserPaperCommandListener....

88 lines
3.6 KiB
Java

/*
* Copyright (c) 2019-2022 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.geyser.platform.spigot.command;
import com.destroystokyo.paper.event.brigadier.AsyncPlayerSendCommandsEvent;
import com.mojang.brigadier.tree.CommandNode;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.geysermc.geyser.GeyserImpl;
import org.geysermc.geyser.api.command.Command;
import java.net.InetSocketAddress;
import java.util.Iterator;
import java.util.Map;
public final class GeyserPaperCommandListener implements Listener {
@SuppressWarnings("UnstableApiUsage")
@EventHandler
public void onCommandSend(AsyncPlayerSendCommandsEvent<?> event) {
// Documentation says to check (event.isAsynchronous() || !event.hasFiredAsync()), but as of Paper 1.18.2
// event.hasFiredAsync is never true
if (event.isAsynchronous()) {
CommandNode<?> geyserBrigadier = event.getCommandNode().getChild("geyser");
if (geyserBrigadier != null) {
Player player = event.getPlayer();
boolean isJavaPlayer = isProbablyJavaPlayer(player);
Map<String, Command> commands = GeyserImpl.getInstance().commandManager().getCommands();
Iterator<? extends CommandNode<?>> it = geyserBrigadier.getChildren().iterator();
while (it.hasNext()) {
CommandNode<?> subnode = it.next();
Command command = commands.get(subnode.getName());
if (command != null) {
if ((command.isBedrockOnly() && isJavaPlayer) || !player.hasPermission(command.permission())) {
// Remove this from the node as we don't have permission to use it
it.remove();
}
}
}
}
}
}
/**
* This early on, there is a rare chance that Geyser has yet to process the connection. We'll try to minimize that
* chance, though.
*/
private boolean isProbablyJavaPlayer(Player player) {
if (GeyserImpl.getInstance().connectionByUuid(player.getUniqueId()) != null) {
// For sure this is a Bedrock player
return false;
}
if (GeyserImpl.getInstance().getConfig().isUseDirectConnection()) {
InetSocketAddress address = player.getAddress();
if (address != null) {
return address.getPort() != 0;
}
}
return true;
}
}