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Purpur/patches/server/0020-Player-invulnerabilities.patch
BillyGalbreath f1c4bad9ce Update to 1.19.1
2022-07-27 23:53:11 -05:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sat, 2 May 2020 20:55:44 -0500
Subject: [PATCH] Player invulnerabilities
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index f2e84f02ee8c9c4e4cb2fa5ca27c2df5bf4fcfdb..e7399e71db7ca5671a4570f4e605497b2b2fa0cb 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -263,6 +263,7 @@ public class ServerPlayer extends Player {
// CraftBukkit end
public PlayerNaturallySpawnCreaturesEvent playerNaturallySpawnedEvent; // Paper
public boolean purpurClient = false; // Purpur
+ public boolean acceptingResourcePack = false; // Purpur
public double lastEntitySpawnRadiusSquared; // Paper - optimise isOutsideRange, this field is in blocks
public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> cachedSingleHashSet; // Paper
@@ -339,6 +340,7 @@ public class ServerPlayer extends Player {
this.bukkitPickUpLoot = true;
this.maxHealthCache = this.getMaxHealth();
this.cachedSingleMobDistanceMap = new com.destroystokyo.paper.util.PooledHashSets.PooledObjectLinkedOpenHashSet<>(this); // Paper
+ this.spawnInvulnerableTime = world.purpurConfig.playerSpawnInvulnerableTicks; // Purpur
}
// Paper start - Chunk priority
public BlockPos getPointInFront(double inFront) {
@@ -1018,6 +1020,12 @@ public class ServerPlayer extends Player {
}
+ // Purpur start
+ public boolean isSpawnInvulnerable() {
+ return spawnInvulnerableTime > 0 || frozen;
+ }
+ // Purpur end
+
@Override
public boolean hurt(DamageSource source, float amount) {
if (this.isInvulnerableTo(source)) {
@@ -1025,7 +1033,7 @@ public class ServerPlayer extends Player {
} else {
boolean flag = this.server.isDedicatedServer() && this.isPvpAllowed() && "fall".equals(source.msgId);
- if (!flag && this.spawnInvulnerableTime > 0 && source != DamageSource.OUT_OF_WORLD) {
+ if (!flag && isSpawnInvulnerable() && source != DamageSource.OUT_OF_WORLD) { // Purpur
return false;
} else {
if (source instanceof EntityDamageSource) {
@@ -1198,6 +1206,7 @@ public class ServerPlayer extends Player {
}
// Paper end
+ this.spawnInvulnerableTime = worldserver.purpurConfig.playerSpawnInvulnerableTicks; // Purpur
return this;
}
}
@@ -1982,6 +1991,7 @@ public class ServerPlayer extends Player {
}
public void sendTexturePack(String url, String hash, boolean required, @Nullable Component resourcePackPrompt) {
+ this.acceptingResourcePack = true; // Purpur
this.connection.send(new ClientboundResourcePackPacket(url, hash, required, resourcePackPrompt));
}
@@ -2507,9 +2517,17 @@ public class ServerPlayer extends Player {
@Override
public boolean isImmobile() {
- return super.isImmobile() || (this.connection != null && this.connection.isDisconnected()); // Paper
+ return super.isImmobile() || frozen || (this.connection != null && this.connection.isDisconnected()); // Paper // Purpur
}
+ // Purpur start
+ private boolean frozen = false;
+
+ public void setFrozen(boolean frozen) {
+ this.frozen = frozen;
+ }
+ // Purpur end
+
@Override
public Scoreboard getScoreboard() {
return this.getBukkitEntity().getScoreboard().getHandle();
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 85d18e94ee93f1348871eca697c723eb5482db6b..9bdaaa3f7845e300ad172d5167daa4187aa6fb0c 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -2075,12 +2075,21 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
@Override
public void handleResourcePackResponse(ServerboundResourcePackPacket packet) {
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
+ // Purpur start
+ if (player.level.purpurConfig.playerInvulnerableWhileAcceptingResourcePack && !this.player.acceptingResourcePack) {
+ ServerGamePacketListenerImpl.LOGGER.info("Disconnecting {} due to resource pack packet exploitation attempt", this.player.getName());
+ this.disconnect(Component.translatable("multiplayer.texturePrompt.failure.line1")); // "Server resource pack couldn't be applied"
+ return;
+ }
+ // Purpur end
if (packet.getAction() == ServerboundResourcePackPacket.Action.DECLINED && this.server.isResourcePackRequired()) {
ServerGamePacketListenerImpl.LOGGER.info("Disconnecting {} due to resource pack rejection", this.player.getGameProfile().getName()); // Paper - Don't print component in resource pack rejection message
this.disconnect(Component.translatable("multiplayer.requiredTexturePrompt.disconnect"), org.bukkit.event.player.PlayerKickEvent.Cause.RESOURCE_PACK_REJECTION); // Paper - add cause
}
// Paper start
PlayerResourcePackStatusEvent.Status packStatus = PlayerResourcePackStatusEvent.Status.values()[packet.action.ordinal()];
+ if (player.level.purpurConfig.playerInvulnerableWhileAcceptingResourcePack) player.setFrozen(packStatus == PlayerResourcePackStatusEvent.Status.ACCEPTED); // Purpur
+ this.player.acceptingResourcePack = packStatus == PlayerResourcePackStatusEvent.Status.ACCEPTED; // Purpur
player.getBukkitEntity().setResourcePackStatus(packStatus);
this.cserver.getPluginManager().callEvent(new PlayerResourcePackStatusEvent(this.getCraftPlayer(), packStatus)); // CraftBukkit
// Paper end
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 3c9d72dd1a1bade79e4c8b5e6c7b136f906ba77d..02707189e0cafcb8db31413566f2078495866434 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -1008,6 +1008,8 @@ public abstract class PlayerList {
}
// Paper end
+ entityplayer1.spawnInvulnerableTime = entityplayer1.level.purpurConfig.playerSpawnInvulnerableTicks; // Purpur
+
// CraftBukkit end
return entityplayer1;
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 69084657049dccad5ba26d22668e8930ff086be8..f01633819138fabe782bb2897ae2488b0d376278 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -2907,5 +2907,20 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
public void resetIdleTimer() {
getHandle().resetLastActionTime();
}
+
+ @Override
+ public boolean isSpawnInvulnerable() {
+ return getHandle().isSpawnInvulnerable();
+ }
+
+ @Override
+ public int getSpawnInvulnerableTicks() {
+ return getHandle().spawnInvulnerableTime;
+ }
+
+ @Override
+ public void setSpawnInvulnerableTicks(int spawnInvulnerableTime) {
+ getHandle().spawnInvulnerableTime = spawnInvulnerableTime;
+ }
// Purpur end
}
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 034205c6e2887aee5d879db46fcf95480e0d7908..6bb51d0ec5d110c8a6690c1df25a730d50df0f72 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -97,6 +97,8 @@ public class PurpurWorldConfig {
public boolean idleTimeoutCountAsSleeping = false;
public boolean idleTimeoutUpdateTabList = false;
public boolean idleTimeoutTargetPlayer = true;
+ public int playerSpawnInvulnerableTicks = 60;
+ public boolean playerInvulnerableWhileAcceptingResourcePack = false;
private void playerSettings() {
if (PurpurConfig.version < 19) {
boolean oldVal = getBoolean("gameplay-mechanics.player.idle-timeout.mods-target", idleTimeoutTargetPlayer);
@@ -108,6 +110,8 @@ public class PurpurWorldConfig {
idleTimeoutCountAsSleeping = getBoolean("gameplay-mechanics.player.idle-timeout.count-as-sleeping", idleTimeoutCountAsSleeping);
idleTimeoutUpdateTabList = getBoolean("gameplay-mechanics.player.idle-timeout.update-tab-list", idleTimeoutUpdateTabList);
idleTimeoutTargetPlayer = getBoolean("gameplay-mechanics.player.idle-timeout.mobs-target", idleTimeoutTargetPlayer);
+ playerSpawnInvulnerableTicks = getInt("gameplay-mechanics.player.spawn-invulnerable-ticks", playerSpawnInvulnerableTicks);
+ playerInvulnerableWhileAcceptingResourcePack = getBoolean("gameplay-mechanics.player.invulnerable-while-accepting-resource-pack", playerInvulnerableWhileAcceptingResourcePack);
}
public boolean babiesAreRidable = true;
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