LuckPerms/forge/src/main/java/me/lucko/luckperms/forge/listeners/ForgeCommandListUpdater.java

121 lines
4.6 KiB
Java

/*
* This file is part of LuckPerms, licensed under the MIT License.
*
* Copyright (c) lucko (Luck) <luck@lucko.me>
* Copyright (c) contributors
*
* 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.
*/
package me.lucko.luckperms.forge.listeners;
import com.github.benmanes.caffeine.cache.LoadingCache;
import me.lucko.luckperms.common.api.implementation.ApiGroup;
import me.lucko.luckperms.common.cache.BufferedRequest;
import me.lucko.luckperms.common.event.LuckPermsEventListener;
import me.lucko.luckperms.common.util.CaffeineFactory;
import me.lucko.luckperms.forge.LPForgePlugin;
import net.luckperms.api.event.EventBus;
import net.luckperms.api.event.context.ContextUpdateEvent;
import net.luckperms.api.event.group.GroupDataRecalculateEvent;
import net.luckperms.api.event.user.UserDataRecalculateEvent;
import net.minecraft.server.MinecraftServer;
import net.minecraft.server.level.ServerPlayer;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
/**
* Calls {@link net.minecraft.server.players.PlayerList#sendPlayerPermissionLevel(ServerPlayer)} when a players permissions change.
*/
public class ForgeCommandListUpdater implements LuckPermsEventListener {
private final LPForgePlugin plugin;
private final LoadingCache<UUID, SendBuffer> sendingBuffers = CaffeineFactory.newBuilder()
.expireAfterAccess(10, TimeUnit.SECONDS)
.build(SendBuffer::new);
public ForgeCommandListUpdater(LPForgePlugin plugin) {
this.plugin = plugin;
}
@Override
public void bind(EventBus bus) {
bus.subscribe(UserDataRecalculateEvent.class, this::onUserDataRecalculate);
bus.subscribe(GroupDataRecalculateEvent.class, this::onGroupDataRecalculate);
bus.subscribe(ContextUpdateEvent.class, this::onContextUpdate);
}
private void onUserDataRecalculate(UserDataRecalculateEvent e) {
requestUpdate(e.getUser().getUniqueId());
}
private void onGroupDataRecalculate(GroupDataRecalculateEvent e) {
plugin.getUserManager().getAll().values().forEach(user -> {
if (user.resolveInheritanceTree(user.getQueryOptions()).contains(ApiGroup.cast(e.getGroup()))) {
requestUpdate(user.getUniqueId());
}
});
}
private void onContextUpdate(ContextUpdateEvent e) {
e.getSubject(ServerPlayer.class).ifPresent(p -> requestUpdate(p.getUUID()));
}
private void requestUpdate(UUID uniqueId) {
if (!this.plugin.getBootstrap().isPlayerOnline(uniqueId)) {
return;
}
// Buffer the request to send a commands update.
SendBuffer sendBuffer = this.sendingBuffers.get(uniqueId);
if (sendBuffer != null) {
sendBuffer.request();
}
}
// Called when the buffer times out.
private void sendUpdate(UUID uniqueId) {
this.plugin.getBootstrap().getScheduler().sync(() -> {
ServerPlayer player = this.plugin.getBootstrap().getPlayer(uniqueId).orElse(null);
if (player != null) {
MinecraftServer server = player.getServer();
if (server != null) {
server.getPlayerList().sendPlayerPermissionLevel(player);
}
}
});
}
private final class SendBuffer extends BufferedRequest<Void> {
private final UUID uniqueId;
SendBuffer(UUID uniqueId) {
super(500, TimeUnit.MILLISECONDS, ForgeCommandListUpdater.this.plugin.getBootstrap().getScheduler());
this.uniqueId = uniqueId;
}
@Override
protected Void perform() {
sendUpdate(this.uniqueId);
return null;
}
}
}