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Allow enabling sand duping (#10191)

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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.
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Owen 2024-03-03 17:05:34 -05:00 • committed by GitHub
parent b21eb4d9a4
commit 89d51d5f29
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GPG key ID: B5690EEEBB952194
673 changed files with 157 additions and 189 deletions
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patches/server/0690-Multiple-Entries-with-Scoreboards.patch Normal file
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@ -0,0 +1,126 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Cryptite <cryptite@gmail.com>
Date: Tue, 21 Sep 2021 18:17:33 -0500
Subject: [PATCH] Multiple Entries with Scoreboards
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket.java
index cf31771648549ab6d7e4e38b30409ca48a976bea..e70decbcf87c2a57bfa34ad7be7120d546ff8e35 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket.java
@@ -42,6 +42,12 @@ public class ClientboundSetPlayerTeamPacket implements Packet<ClientGamePacketLi
return new ClientboundSetPlayerTeamPacket(team.getName(), operation == ClientboundSetPlayerTeamPacket.Action.ADD ? 3 : 4, Optional.empty(), ImmutableList.of(playerName));
}
+ // Paper start - Multiple Entries with Scoreboards
+ public static ClientboundSetPlayerTeamPacket createMultiplePlayerPacket(PlayerTeam team, Collection<String> players, ClientboundSetPlayerTeamPacket.Action operation) {
+ return new ClientboundSetPlayerTeamPacket(team.getName(), operation == ClientboundSetPlayerTeamPacket.Action.ADD ? 3 : 4, Optional.empty(), players);
+ }
+ // Paper end - Multiple Entries with Scoreboards
+
public ClientboundSetPlayerTeamPacket(FriendlyByteBuf buf) {
this.name = buf.readUtf();
this.method = buf.readByte();
diff --git a/src/main/java/net/minecraft/server/ServerScoreboard.java b/src/main/java/net/minecraft/server/ServerScoreboard.java
index c4904b358fc2f493e6a9572a84b8110a927da208..76d67d01388ecc1af6b43212e018edc678e84d72 100644
--- a/src/main/java/net/minecraft/server/ServerScoreboard.java
+++ b/src/main/java/net/minecraft/server/ServerScoreboard.java
@@ -104,6 +104,25 @@ public class ServerScoreboard extends Scoreboard {
}
}
+ // Paper start - Multiple Entries with Scoreboards
+ public boolean addPlayersToTeam(java.util.Collection<String> players, PlayerTeam team) {
+ boolean anyAdded = false;
+ for (String playerName : players) {
+ if (super.addPlayerToTeam(playerName, team)) {
+ anyAdded = true;
+ }
+ }
+
+ if (anyAdded) {
+ this.broadcastAll(ClientboundSetPlayerTeamPacket.createMultiplePlayerPacket(team, players, ClientboundSetPlayerTeamPacket.Action.ADD));
+ this.setDirty();
+ return true;
+ } else {
+ return false;
+ }
+ }
+ // Paper end - Multiple Entries with Scoreboards
+
@Override
public void removePlayerFromTeam(String scoreHolderName, PlayerTeam team) {
super.removePlayerFromTeam(scoreHolderName, team);
@@ -111,6 +130,17 @@ public class ServerScoreboard extends Scoreboard {
this.setDirty();
}
+ // Paper start - Multiple Entries with Scoreboards
+ public void removePlayersFromTeam(java.util.Collection<String> players, PlayerTeam team) {
+ for (String playerName : players) {
+ super.removePlayerFromTeam(playerName, team);
+ }
+
+ this.broadcastAll(ClientboundSetPlayerTeamPacket.createMultiplePlayerPacket(team, players, ClientboundSetPlayerTeamPacket.Action.REMOVE));
+ this.setDirty();
+ }
+ // Paper end - Multiple Entries with Scoreboards
+
@Override
public void onObjectiveAdded(Objective objective) {
super.onObjectiveAdded(objective);
diff --git a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftTeam.java b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftTeam.java
index 27219bf2f16aed64c78623d44c3cc84aa9f47065..2b335c750ce5f9ccc2651a8701497ca9b8f46704 100644
--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftTeam.java
+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftTeam.java
@@ -229,6 +229,21 @@ final class CraftTeam extends CraftScoreboardComponent implements Team {
scoreboard.board.addPlayerToTeam(entry, this.team);
}
+ // Paper start - Multiple Entries with Scoreboards
+ @Override
+ public void addEntities(java.util.Collection<org.bukkit.entity.Entity> entities) throws IllegalStateException, IllegalArgumentException {
+ this.addEntries(entities.stream().map(entity -> ((org.bukkit.craftbukkit.entity.CraftEntity) entity).getHandle().getScoreboardName()).toList());
+ }
+
+ @Override
+ public void addEntries(java.util.Collection<String> entries) throws IllegalStateException, IllegalArgumentException {
+ Preconditions.checkArgument(entries != null, "Entries cannot be null");
+ CraftScoreboard scoreboard = this.checkState();
+
+ ((net.minecraft.server.ServerScoreboard) scoreboard.board).addPlayersToTeam(entries, this.team);
+ }
+ // Paper end - Multiple Entries with Scoreboards
+
@Override
public boolean removePlayer(OfflinePlayer player) {
Preconditions.checkArgument(player != null, "OfflinePlayer cannot be null");
@@ -248,6 +263,28 @@ final class CraftTeam extends CraftScoreboardComponent implements Team {
return true;
}
+ // Paper start - Multiple Entries with Scoreboards
+ @Override
+ public boolean removeEntities(java.util.Collection<org.bukkit.entity.Entity> entities) throws IllegalStateException, IllegalArgumentException {
+ return this.removeEntries(entities.stream().map(entity -> ((org.bukkit.craftbukkit.entity.CraftEntity) entity).getHandle().getScoreboardName()).toList());
+ }
+
+ @Override
+ public boolean removeEntries(java.util.Collection<String> entries) throws IllegalStateException, IllegalArgumentException {
+ Preconditions.checkArgument(entries != null, "Entry cannot be null");
+ CraftScoreboard scoreboard = this.checkState();
+
+ for (String entry : entries) {
+ if (this.team.getPlayers().contains(entry)) {
+ ((net.minecraft.server.ServerScoreboard) scoreboard.board).removePlayersFromTeam(entries, this.team);
+ return true;
+ }
+ }
+
+ return false;
+ }
+ // Paper end - Multiple Entries with Scoreboards
+
@Override
public boolean hasPlayer(OfflinePlayer player) throws IllegalArgumentException, IllegalStateException {
Preconditions.checkArgument(player != null, "OfflinePlayer cannot be null");