mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-29 07:48:53 +01:00
0976d52bbd
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 Please note that this build includes changes to meet upstreams requirements for nullability annotations. While we aim for a level of accuracy, these might not be 100% correct, if there are any issues, please speak to us on discord, or open an issue on the tracker to discuss. Bukkit Changes: 9a6a1de3 Remove nullability annotations from enum constructors 3f0591ea SPIGOT-2540: Add nullability annotations to entire Bukkit API CraftBukkit Changes:8d8475fcSPIGOT-4666: Force parameter in HumanEntity#sleep8b1588e2Fix ExplosionPrimeEvent#setFire not working with EnderCrystals39a287b7Don't ignore newlines in PlayerListHeader/Footer Spigot Changes: cf694d87 Add nullability annotations
54 lines
2.8 KiB
Diff
54 lines
2.8 KiB
Diff
From 8cc36c92535383739aa5fb7a5d57c7854f5ef38f Mon Sep 17 00:00:00 2001
|
|
From: Aikar <aikar@aikar.co>
|
|
Date: Wed, 27 Feb 2019 22:18:40 -0500
|
|
Subject: [PATCH] Limit Client Sign length more
|
|
|
|
modified clients can send more data from the client
|
|
to the server and it would get stored on the sign as sent.
|
|
|
|
Mojang has a limit of 384 which is much higher than reasonable.
|
|
|
|
the client can barely render around 16 characters as-is, but formatting
|
|
codes can get it to be more than 16 actual length.
|
|
|
|
Set a limit of 80 which should give an average of 16 characters 2
|
|
sets of legacy formatting codes which should be plenty for all uses.
|
|
|
|
This does not strip any existing data from the NBT as plugins
|
|
may use this for storing data out of the rendered area.
|
|
|
|
it only impacts data sent from the client.
|
|
|
|
Set -DPaper.maxSignLength=XX to change limit or -1 to disable
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
|
|
index 5c58b8538..dc8c20efb 100644
|
|
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
|
|
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
|
|
@@ -104,6 +104,7 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
|
|
private int E;
|
|
private int receivedMovePackets;
|
|
private int processedMovePackets;
|
|
+ private static final int MAX_SIGN_LINE_LENGTH = Integer.getInteger("Paper.maxSignLength", 80);
|
|
private static final long KEEPALIVE_LIMIT = Long.getLong("paper.playerconnection.keepalive", 30) * 1000; // Paper - provide property to set keepalive limit
|
|
|
|
public PlayerConnection(MinecraftServer minecraftserver, NetworkManager networkmanager, EntityPlayer entityplayer) {
|
|
@@ -2543,6 +2544,15 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
|
|
String[] lines = new String[4];
|
|
|
|
for (int i = 0; i < astring.length; ++i) {
|
|
+ // Paper start - cap line length - modified clients can send longer data than normal
|
|
+ if (MAX_SIGN_LINE_LENGTH > 0 && astring[i].length() > MAX_SIGN_LINE_LENGTH) {
|
|
+ // This handles multibyte characters as 1
|
|
+ int offset = astring[i].codePoints().limit(MAX_SIGN_LINE_LENGTH).map(Character::charCount).sum();
|
|
+ if (offset > astring.length) {
|
|
+ astring[i] = astring[i].substring(0, offset);
|
|
+ }
|
|
+ }
|
|
+ // Paper end
|
|
lines[i] = SharedConstants.a(astring[i]); //Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created.
|
|
}
|
|
SignChangeEvent event = new SignChangeEvent((org.bukkit.craftbukkit.block.CraftBlock) player.getWorld().getBlockAt(x, y, z), this.server.getPlayer(this.player), lines);
|
|
--
|
|
2.21.0
|
|
|