From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: William Blake Galbreath 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 4f6aa9caaa471ecbeaff895508d3874577dbe5cd..46f536d45470da1af7cae8eb6524ad5e86f1b4b3 100644 --- a/src/main/java/net/minecraft/server/level/ServerPlayer.java +++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java @@ -254,6 +254,7 @@ 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 cachedSingleHashSet; // Paper @@ -330,6 +331,7 @@ 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) { @@ -1010,6 +1012,12 @@ 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)) { @@ -1017,7 +1025,7 @@ 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) { @@ -1190,6 +1198,7 @@ public class ServerPlayer extends Player { } // Paper end + this.spawnInvulnerableTime = worldserver.purpurConfig.playerSpawnInvulnerableTicks; // Purpur return this; } } @@ -1964,6 +1973,7 @@ 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)); } @@ -2474,9 +2484,17 @@ 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 974a94086c06cceffff3be2e0fa702967ef11d56..d9e4a2c56820ea6de0d31721e1796ea7165cb256 100644 --- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java +++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java @@ -1984,12 +1984,21 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser @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(new TranslatableComponent("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.getName()); this.disconnect(new TranslatableComponent("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 f126020b99c2dc32fd2e34e1fd7ae6bc9872e67f..c5be8e891534cc41e3b530f303f18d88cf5340cc 100644 --- a/src/main/java/net/minecraft/server/players/PlayerList.java +++ b/src/main/java/net/minecraft/server/players/PlayerList.java @@ -1004,6 +1004,8 @@ 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 796eb59a14ace2918e0fd88b43b56b275221d6fc..2cd475ac88b3d28aa918ca7f8599a70a5b5c2ea4 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java @@ -2823,5 +2823,20 @@ 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 01a2d17790b3adbc63fe742b9e5c11dd2e0d2e68..81524c4f676766c09125187876b46e0704294880 100644 --- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java +++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java @@ -94,6 +94,8 @@ 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); @@ -105,6 +107,8 @@ 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;