Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-11-15 12:30:06 +01:00
89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
178 Zeilen
11 KiB
Diff
178 Zeilen
11 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Corey Shupe <coreyshupe101@gmail.com>
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Date: Wed, 11 Jan 2023 16:40:39 -0500
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Subject: [PATCH] Add Listing API for Player
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diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundPlayerInfoUpdatePacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundPlayerInfoUpdatePacket.java
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index d43106eb89b14667e85cd6e8fa047d64f2e8ec87..56eddd28429cf42c02d88b8bf79f8b616fa45289 100644
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--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundPlayerInfoUpdatePacket.java
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+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundPlayerInfoUpdatePacket.java
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@@ -29,12 +29,46 @@ public class ClientboundPlayerInfoUpdatePacket implements Packet<ClientGamePacke
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this.actions = EnumSet.of(action);
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this.entries = List.of(new ClientboundPlayerInfoUpdatePacket.Entry(player));
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}
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+ // Paper start - Add Listing API for Player
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+ public ClientboundPlayerInfoUpdatePacket(EnumSet<ClientboundPlayerInfoUpdatePacket.Action> actions, List<ClientboundPlayerInfoUpdatePacket.Entry> entries) {
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+ this.actions = actions;
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+ this.entries = entries;
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+ }
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+
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+ public ClientboundPlayerInfoUpdatePacket(EnumSet<ClientboundPlayerInfoUpdatePacket.Action> actions, ClientboundPlayerInfoUpdatePacket.Entry entry) {
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+ this.actions = actions;
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+ this.entries = List.of(entry);
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+ }
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+ // Paper end - Add Listing API for Player
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public static ClientboundPlayerInfoUpdatePacket createPlayerInitializing(Collection<ServerPlayer> players) {
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EnumSet<ClientboundPlayerInfoUpdatePacket.Action> enumSet = EnumSet.of(ClientboundPlayerInfoUpdatePacket.Action.ADD_PLAYER, ClientboundPlayerInfoUpdatePacket.Action.INITIALIZE_CHAT, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_GAME_MODE, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_LISTED, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_LATENCY, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_DISPLAY_NAME);
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return new ClientboundPlayerInfoUpdatePacket(enumSet, players);
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}
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+ // Paper start - Add Listing API for Player
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+ public static ClientboundPlayerInfoUpdatePacket createPlayerInitializing(Collection<ServerPlayer> players, ServerPlayer forPlayer) {
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+ final EnumSet<ClientboundPlayerInfoUpdatePacket.Action> enumSet = EnumSet.of(ClientboundPlayerInfoUpdatePacket.Action.ADD_PLAYER, ClientboundPlayerInfoUpdatePacket.Action.INITIALIZE_CHAT, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_GAME_MODE, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_LISTED, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_LATENCY, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_DISPLAY_NAME);
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+ final List<ClientboundPlayerInfoUpdatePacket.Entry> entries = new java.util.ArrayList<>(players.size());
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+ final org.bukkit.craftbukkit.entity.CraftPlayer bukkitEntity = forPlayer.getBukkitEntity();
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+ for (final ServerPlayer player : players) {
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+ entries.add(new ClientboundPlayerInfoUpdatePacket.Entry(player, bukkitEntity.isListed(player.getBukkitEntity())));
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+ }
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+ return new ClientboundPlayerInfoUpdatePacket(enumSet, entries);
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+ }
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+
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+ public static ClientboundPlayerInfoUpdatePacket createSinglePlayerInitializing(ServerPlayer player, boolean listed) {
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+ final EnumSet<ClientboundPlayerInfoUpdatePacket.Action> enumSet = EnumSet.of(ClientboundPlayerInfoUpdatePacket.Action.ADD_PLAYER, ClientboundPlayerInfoUpdatePacket.Action.INITIALIZE_CHAT, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_GAME_MODE, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_LISTED, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_LATENCY, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_DISPLAY_NAME);
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+ final List<ClientboundPlayerInfoUpdatePacket.Entry> entries = List.of(new Entry(player, listed));
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+ return new ClientboundPlayerInfoUpdatePacket(enumSet, entries);
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+ }
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+
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+ public static ClientboundPlayerInfoUpdatePacket updateListed(UUID playerInfoId, boolean listed) {
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+ EnumSet<ClientboundPlayerInfoUpdatePacket.Action> enumSet = EnumSet.of(ClientboundPlayerInfoUpdatePacket.Action.UPDATE_LISTED);
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+ return new ClientboundPlayerInfoUpdatePacket(enumSet, new ClientboundPlayerInfoUpdatePacket.Entry(playerInfoId, listed));
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+ }
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+ // Paper end - Add Listing API for Player
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+
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public ClientboundPlayerInfoUpdatePacket(FriendlyByteBuf buf) {
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this.actions = buf.readEnumSet(ClientboundPlayerInfoUpdatePacket.Action.class);
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this.entries = buf.readList((buf2) -> {
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@@ -144,8 +178,16 @@ public class ClientboundPlayerInfoUpdatePacket implements Packet<ClientGamePacke
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public static record Entry(UUID profileId, @Nullable GameProfile profile, boolean listed, int latency, GameType gameMode, @Nullable Component displayName, @Nullable RemoteChatSession.Data chatSession) {
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Entry(ServerPlayer player) {
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- this(player.getUUID(), player.getGameProfile(), true, player.connection.latency(), player.gameMode.getGameModeForPlayer(), player.getTabListDisplayName(), Optionull.map(player.getChatSession(), RemoteChatSession::asData));
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+ // Paper start - Add Listing API for Player
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+ this(player, true);
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+ }
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+ Entry(ServerPlayer player, boolean listed) {
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+ this(player.getUUID(), player.getGameProfile(), listed, player.connection.latency(), player.gameMode.getGameModeForPlayer(), player.getTabListDisplayName(), Optionull.map(player.getChatSession(), RemoteChatSession::asData));
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+ }
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+ Entry(UUID profileId, boolean listed) {
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+ this(profileId, null, listed, 0, GameType.DEFAULT_MODE, null, null);
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}
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+ // Paper end - Add Listing API for Player
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}
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static class EntryBuilder {
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diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
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index bc0e9fb41fe22e0a603837fcbdd82134f51d21d9..d38fe02af4cc35ed5b22acec41bedb76151f8af5 100644
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--- a/src/main/java/net/minecraft/server/players/PlayerList.java
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+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
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@@ -357,14 +357,22 @@ public abstract class PlayerList {
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// CraftBukkit end
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// CraftBukkit start - sendAll above replaced with this loop
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- ClientboundPlayerInfoUpdatePacket packet = ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(player));
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+ ClientboundPlayerInfoUpdatePacket packet = ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(player)); // Paper - Add Listing API for Player
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final List<ServerPlayer> onlinePlayers = Lists.newArrayListWithExpectedSize(this.players.size() - 1); // Paper - Use single player info update packet on join
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for (int i = 0; i < this.players.size(); ++i) {
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ServerPlayer entityplayer1 = (ServerPlayer) this.players.get(i);
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if (entityplayer1.getBukkitEntity().canSee(bukkitPlayer)) {
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+ // Paper start - Add Listing API for Player
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+ if (entityplayer1.getBukkitEntity().isListed(bukkitPlayer)) {
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+ // Paper end - Add Listing API for Player
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entityplayer1.connection.send(packet);
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+ // Paper start - Add Listing API for Player
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+ } else {
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+ entityplayer1.connection.send(ClientboundPlayerInfoUpdatePacket.createSinglePlayerInitializing(player, false));
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+ }
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+ // Paper end - Add Listing API for Player
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}
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if (entityplayer1 == player || !bukkitPlayer.canSee(entityplayer1.getBukkitEntity())) { // Paper - Use single player info update packet on join; Don't include joining player
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@@ -375,7 +383,7 @@ public abstract class PlayerList {
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}
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// Paper start - Use single player info update packet on join
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if (!onlinePlayers.isEmpty()) {
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- player.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(onlinePlayers));
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+ player.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(onlinePlayers, player)); // Paper - Add Listing API for Player
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}
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// Paper end - Use single player info update packet on join
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player.sentListPacket = true;
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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index 15817a84ad5db54ec299f933387f4ad1e0e74b33..458c7039bddf63a0affbf14c24ba73d66cc13fac 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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@@ -188,6 +188,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
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private final ConversationTracker conversationTracker = new ConversationTracker();
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private final Set<String> channels = new HashSet<String>();
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private final Map<UUID, Set<WeakReference<Plugin>>> invertedVisibilityEntities = new HashMap<>();
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+ private final Set<UUID> unlistedEntities = new HashSet<>(); // Paper - Add Listing API for Player
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private static final WeakHashMap<Plugin, WeakReference<Plugin>> pluginWeakReferences = new WeakHashMap<>();
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private int hash = 0;
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private double health = 20;
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@@ -1995,7 +1996,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
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otherPlayer.setUUID(uuidOverride);
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}
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// Paper end
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- this.getHandle().connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(otherPlayer)));
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+ this.getHandle().connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(otherPlayer), this.getHandle())); // Paper - Add Listing API for Player
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if (original != null) otherPlayer.setUUID(original); // Paper - uuid override
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}
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@@ -2102,6 +2103,43 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
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return (entity != null) ? this.canSee(entity) : false; // If we can't find it, we can't see it
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}
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+ // Paper start - Add Listing API for Player
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+ @Override
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+ public boolean isListed(Player other) {
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+ return !this.unlistedEntities.contains(other.getUniqueId());
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+ }
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+
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+ @Override
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+ public boolean unlistPlayer(@NotNull Player other) {
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+ Preconditions.checkNotNull(other, "hidden entity cannot be null");
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+ if (this.getHandle().connection == null) return false;
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+ if (this.equals(other)) return false;
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+ if (!this.canSee(other)) return false;
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+
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+ if (unlistedEntities.add(other.getUniqueId())) {
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+ this.getHandle().connection.send(ClientboundPlayerInfoUpdatePacket.updateListed(other.getUniqueId(), false));
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+ return true;
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+ } else {
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+ return false;
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+ }
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+ }
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+
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+ @Override
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+ public boolean listPlayer(@NotNull Player other) {
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+ Preconditions.checkNotNull(other, "hidden entity cannot be null");
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+ if (this.getHandle().connection == null) return false;
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+ if (this.equals(other)) return false;
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+ if (!this.canSee(other)) throw new IllegalStateException("Player cannot see other player");
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+
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+ if (this.unlistedEntities.remove(other.getUniqueId())) {
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+ this.getHandle().connection.send(ClientboundPlayerInfoUpdatePacket.updateListed(other.getUniqueId(), true));
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+ return true;
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+ } else {
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+ return false;
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+ }
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+ }
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+ // Paper end - Add Listing API for Player
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+
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@Override
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public Map<String, Object> serialize() {
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Map<String, Object> result = new LinkedHashMap<String, Object>();
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