mirror of
https://github.com/PaperMC/Waterfall.git
synced 2024-10-03 00:47:27 +02:00
cca83dfaf6
Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing BungeeCord Changes: a3ab2bf5 Update checkstyle adee7bd2 Source jar does not need to fork build 7bd8a027 Always print remote IP in InitialHandler 0cf27a09 Update scriptus bf673c5d Add pretty colours to console log levels 2235a323 Optimize ColouredWriter slightly 1dee0490 Don't send/construct redundant kick messages e9ba95b9 Don't log full CorruptedFrameException d3bd7852 #2762: Work correctly with disabled timeout 3ce4132c Switch keepalive queue to ArrayDeque ce2dcaf7 #2763: Fix .DS_Store entry in .gitignore cf72c3a7 Show slow event times in milliseconds cd7a3ab2 #2758: Improve server list ping response where remote ping failed 0a4b9b49 #2752: Configurable connect and ping timeouts
282 lines
11 KiB
Diff
282 lines
11 KiB
Diff
From cb58c49decf1797f281bf3beb8c773574af6f396 Mon Sep 17 00:00:00 2001
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From: Aaron Hill <aa1ronham@gmail.com>
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Date: Thu, 15 Sep 2016 22:38:37 +0200
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Subject: [PATCH] Fix potion race condition on Forge 1.8.9
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diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/AbstractPacketHandler.java b/protocol/src/main/java/net/md_5/bungee/protocol/AbstractPacketHandler.java
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index 39e257c3..e4f14974 100644
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--- a/protocol/src/main/java/net/md_5/bungee/protocol/AbstractPacketHandler.java
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+++ b/protocol/src/main/java/net/md_5/bungee/protocol/AbstractPacketHandler.java
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@@ -7,6 +7,8 @@ import net.md_5.bungee.protocol.packet.ClientStatus;
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import net.md_5.bungee.protocol.packet.Commands;
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import net.md_5.bungee.protocol.packet.EncryptionRequest;
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import net.md_5.bungee.protocol.packet.EncryptionResponse;
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+import net.md_5.bungee.protocol.packet.EntityEffect; // Waterfall
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+import net.md_5.bungee.protocol.packet.EntityRemoveEffect; // Waterfall
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import net.md_5.bungee.protocol.packet.EntityStatus;
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import net.md_5.bungee.protocol.packet.Handshake;
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import net.md_5.bungee.protocol.packet.KeepAlive;
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@@ -173,4 +175,14 @@ public abstract class AbstractPacketHandler
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public void handle(ViewDistance viewDistance) throws Exception
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{
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}
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+
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+ // Waterfall start
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+ public void handle(EntityEffect entityEffect) throws Exception
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+ {
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+ }
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+
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+ public void handle(EntityRemoveEffect removeEffect) throws Exception
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+ {
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+ }
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+ // Waterfall end
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}
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diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java b/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java
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index 31cbaa53..3556eda0 100644
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--- a/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java
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+++ b/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java
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@@ -16,6 +16,8 @@ import net.md_5.bungee.protocol.packet.Commands;
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import net.md_5.bungee.protocol.packet.EncryptionRequest;
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import net.md_5.bungee.protocol.packet.EncryptionResponse;
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import net.md_5.bungee.protocol.packet.EntityStatus;
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+import net.md_5.bungee.protocol.packet.EntityEffect;
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+import net.md_5.bungee.protocol.packet.EntityRemoveEffect;
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import net.md_5.bungee.protocol.packet.Handshake;
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import net.md_5.bungee.protocol.packet.KeepAlive;
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import net.md_5.bungee.protocol.packet.Kick;
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@@ -97,6 +99,29 @@ public enum Protocol
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map( ProtocolConstants.MINECRAFT_1_9, 0x0C ),
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map( ProtocolConstants.MINECRAFT_1_15, 0x0D )
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);
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+ // Waterfall start
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+ TO_CLIENT.registerPacket(
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+ EntityEffect.class,
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+ map(ProtocolConstants.MINECRAFT_1_8, 0x1D),
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+ map(ProtocolConstants.MINECRAFT_1_9, 0x4C),
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+ map(ProtocolConstants.MINECRAFT_1_9_4, 0x4B),
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+ map(ProtocolConstants.MINECRAFT_1_12, 0x4E),
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+ map(ProtocolConstants.MINECRAFT_1_12_1, 0x4F),
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+ map(ProtocolConstants.MINECRAFT_1_13, 0x53),
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+ map(ProtocolConstants.MINECRAFT_1_14, 0x59),
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+ map(ProtocolConstants.MINECRAFT_1_15, 0x5A)
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+ );
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+ TO_CLIENT.registerPacket(
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+ EntityRemoveEffect.class,
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+ map(ProtocolConstants.MINECRAFT_1_8, 0x1E),
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+ map(ProtocolConstants.MINECRAFT_1_9, 0x31),
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+ map(ProtocolConstants.MINECRAFT_1_12, 0x32),
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+ map(ProtocolConstants.MINECRAFT_1_12_1, 0x33),
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+ map(ProtocolConstants.MINECRAFT_1_13, 0x36),
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+ map(ProtocolConstants.MINECRAFT_1_14, 0x38),
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+ map(ProtocolConstants.MINECRAFT_1_15, 0x39)
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+ );
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+ // Waterfall end
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TO_CLIENT.registerPacket(
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PlayerListItem.class, // PlayerInfo
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map( ProtocolConstants.MINECRAFT_1_8, 0x38 ),
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diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/packet/EntityEffect.java b/protocol/src/main/java/net/md_5/bungee/protocol/packet/EntityEffect.java
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new file mode 100644
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index 00000000..d11a9ea9
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--- /dev/null
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+++ b/protocol/src/main/java/net/md_5/bungee/protocol/packet/EntityEffect.java
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@@ -0,0 +1,45 @@
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+package net.md_5.bungee.protocol.packet;
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+
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+import io.netty.buffer.ByteBuf;
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+import lombok.AllArgsConstructor;
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+import lombok.Data;
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+import lombok.EqualsAndHashCode;
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+import lombok.NoArgsConstructor;
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+import net.md_5.bungee.protocol.AbstractPacketHandler;
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+import net.md_5.bungee.protocol.DefinedPacket;
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+
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+@Data
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+@NoArgsConstructor
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+@AllArgsConstructor
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+@EqualsAndHashCode(callSuper = false)
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+public class EntityEffect extends DefinedPacket {
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+
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+ private int entityId;
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+ private int effectId;
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+ private int amplifier;
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+ private int duration;
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+ private boolean hideParticles;
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+
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+ @Override
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+ public void read(ByteBuf buf) {
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+ this.entityId = readVarInt(buf);
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+ this.effectId = buf.readUnsignedByte();
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+ this.amplifier = buf.readUnsignedByte();
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+ this.duration = readVarInt(buf);
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+ this.hideParticles = buf.readBoolean();
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+ }
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+
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+ @Override
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+ public void write(ByteBuf buf) {
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+ writeVarInt(this.entityId, buf);
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+ buf.writeByte(this.effectId);
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+ buf.writeByte(this.amplifier);
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+ writeVarInt(this.duration, buf);
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+ buf.writeBoolean(this.hideParticles);
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+ }
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+
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+ @Override
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+ public void handle(AbstractPacketHandler handler) throws Exception {
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+ handler.handle(this);
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+ }
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+}
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diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/packet/EntityRemoveEffect.java b/protocol/src/main/java/net/md_5/bungee/protocol/packet/EntityRemoveEffect.java
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new file mode 100644
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index 00000000..7ed2dc3a
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--- /dev/null
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+++ b/protocol/src/main/java/net/md_5/bungee/protocol/packet/EntityRemoveEffect.java
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@@ -0,0 +1,36 @@
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+package net.md_5.bungee.protocol.packet;
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+
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+import io.netty.buffer.ByteBuf;
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+import lombok.AllArgsConstructor;
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+import lombok.Data;
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+import lombok.EqualsAndHashCode;
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+import lombok.NoArgsConstructor;
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+import net.md_5.bungee.protocol.AbstractPacketHandler;
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+import net.md_5.bungee.protocol.DefinedPacket;
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+
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+@Data
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+@NoArgsConstructor
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+@AllArgsConstructor
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+@EqualsAndHashCode(callSuper = false)
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+public class EntityRemoveEffect extends DefinedPacket {
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+
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+ private int entityId;
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+ private int effectId;
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+
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+ @Override
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+ public void read(ByteBuf buf) {
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+ this.entityId = readVarInt(buf);
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+ this.effectId = buf.readUnsignedByte();
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+ }
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+
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+ @Override
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+ public void write(ByteBuf buf) {
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+ writeVarInt(this.entityId, buf);
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+ buf.writeByte(effectId);
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+ }
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+
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+ @Override
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+ public void handle(AbstractPacketHandler handler) throws Exception {
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+ handler.handle(this);
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+ }
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+}
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diff --git a/proxy/src/main/java/net/md_5/bungee/UserConnection.java b/proxy/src/main/java/net/md_5/bungee/UserConnection.java
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index 3f9a91e3..a5da62f3 100644
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--- a/proxy/src/main/java/net/md_5/bungee/UserConnection.java
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+++ b/proxy/src/main/java/net/md_5/bungee/UserConnection.java
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@@ -1,7 +1,9 @@
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package net.md_5.bungee;
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import com.google.common.base.Preconditions;
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+import com.google.common.collect.HashMultimap;
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import com.google.common.collect.ImmutableMap;
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+import com.google.common.collect.Multimap;
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import io.netty.bootstrap.Bootstrap;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelFuture;
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@@ -124,6 +126,10 @@ public final class UserConnection implements ProxiedPlayer
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private final Scoreboard serverSentScoreboard = new Scoreboard();
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@Getter
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private final Collection<UUID> sentBossBars = new HashSet<>();
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+ // Waterfall start
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+ @Getter
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+ private final Multimap<Integer, Integer> potions = HashMultimap.create();
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+ // Waterfall end
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/*========================================================================*/
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@Getter
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private String displayName;
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diff --git a/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java b/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java
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index d1654bcc..cfd25859 100644
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--- a/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java
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+++ b/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java
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@@ -50,6 +50,8 @@ import net.md_5.bungee.protocol.PacketWrapper;
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import net.md_5.bungee.protocol.ProtocolConstants;
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import net.md_5.bungee.protocol.packet.BossBar;
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import net.md_5.bungee.protocol.packet.Commands;
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+import net.md_5.bungee.protocol.packet.EntityEffect;
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+import net.md_5.bungee.protocol.packet.EntityRemoveEffect;
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import net.md_5.bungee.protocol.packet.KeepAlive;
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import net.md_5.bungee.protocol.packet.Kick;
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import net.md_5.bungee.protocol.packet.PlayerListItem;
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@@ -595,6 +597,32 @@ public class DownstreamBridge extends PacketHandler
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}
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}
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+ // Waterfall start
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+ @Override
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+ public void handle(EntityEffect entityEffect) throws Exception
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+ {
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+ // Don't send any potions when switching between servers (which involves a handshake), which can trigger a race
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+ // condition on the client.
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+ if (this.con.getForgeClientHandler().isForgeUser() && !this.con.getForgeClientHandler().isHandshakeComplete()) {
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+ throw CancelSendSignal.INSTANCE;
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+ }
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+ con.getPotions().put(rewriteEntityId(entityEffect.getEntityId()), entityEffect.getEffectId());
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+ }
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+
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+ @Override
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+ public void handle(EntityRemoveEffect removeEffect) throws Exception
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+ {
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+ con.getPotions().remove(rewriteEntityId(removeEffect.getEntityId()), removeEffect.getEffectId());
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+ }
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+
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+ private int rewriteEntityId(int entityId) {
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+ if (entityId == con.getServerEntityId()) {
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+ return con.getClientEntityId();
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+ }
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+ return entityId;
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+ }
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+ // Waterfall end
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+
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@Override
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public void handle(Respawn respawn)
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{
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diff --git a/proxy/src/main/java/net/md_5/bungee/forge/ForgeClientHandler.java b/proxy/src/main/java/net/md_5/bungee/forge/ForgeClientHandler.java
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index d15044f4..bea2bbff 100644
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--- a/proxy/src/main/java/net/md_5/bungee/forge/ForgeClientHandler.java
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+++ b/proxy/src/main/java/net/md_5/bungee/forge/ForgeClientHandler.java
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@@ -9,6 +9,8 @@ import lombok.NonNull;
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import lombok.RequiredArgsConstructor;
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import lombok.Setter;
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import net.md_5.bungee.UserConnection;
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+import net.md_5.bungee.protocol.ProtocolConstants;
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+import net.md_5.bungee.protocol.packet.EntityRemoveEffect;
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import net.md_5.bungee.protocol.packet.PluginMessage;
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/**
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@@ -94,9 +96,23 @@ public class ForgeClientHandler
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public void resetHandshake()
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{
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state = ForgeClientHandshakeState.HELLO;
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+
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+ // This issue only exists in Forge 1.8.9
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+ if (this.con.getPendingConnection().getVersion() == ProtocolConstants.MINECRAFT_1_8) {
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+ this.resetAllThePotions(con);
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+ }
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+
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con.unsafe().sendPacket( ForgeConstants.FML_RESET_HANDSHAKE );
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}
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+ private void resetAllThePotions(UserConnection con) {
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+ // Just to be sure
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+ for (Map.Entry<Integer, Integer> entry: con.getPotions().entries()) {
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+ con.unsafe().sendPacket(new EntityRemoveEffect(entry.getKey(), entry.getValue()));
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+ }
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+ con.getPotions().clear();
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+ }
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+
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/**
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* Sends the server mod list to the client, or stores it for sending later.
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*
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--
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2.25.0
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