geforkt von Mirrors/Paper
4bc15f13aa
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: e2160a18 Make MapCursor#type not depends on deprecated values CraftBukkit Changes: 6ce172642 SPIGOT-7761: Ender pearl does not damage or spawn endermites f5a63f734 SPIGOT-7759: Chunk not there when requested in ChunkUnloadEvent 28287259c Remove unused import eb9a7dde0 SPIGOT-7757: Cannot set item in Stonecutter Inventory f8be9d752 Move deserialized removed unhandled tags to dedicated removedTags a7e576186 Fix potential mutability issue with CraftMetaItem copy constructor 995885452 SPIGOT-7741: Vanilla ItemComponent in commands can't remove components 9ef69aa0b PR-1284: Move ItemType <-> ItemMeta linking to a centralized place 3e82eafbe PR-1420: Fix DirectEntity and CausingEntity Damager for Creepers ignited by Player c23daa71f SPIGOT-7751: Fix crash caused by arrows from trial spawners Make MapCursor#type not depends on deprecated values SPIGOT-7761: Ender pearl does not damage or spawn endermites
57 Zeilen
3.1 KiB
Diff
57 Zeilen
3.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 27 Feb 2019 22:18:40 -0500
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Subject: [PATCH] Limit Client Sign length more
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modified clients can send more data from the client
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to the server and it would get stored on the sign as sent.
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Mojang has a limit of 384 which is much higher than reasonable.
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the client can barely render around 16 characters as-is, but formatting
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codes can get it to be more than 16 actual length.
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Set a limit of 80 which should give an average of 16 characters 2
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sets of legacy formatting codes which should be plenty for all uses.
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This does not strip any existing data from the NBT as plugins
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may use this for storing data out of the rendered area.
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it only impacts data sent from the client.
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Set -DPaper.maxSignLength=XX to change limit or -1 to disable
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diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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index cb6c447899d7080f14abecdb0cc84dc256a5bceb..39e273ada6225a4a5deb4830185a957e4ae9ab0d 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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@@ -299,6 +299,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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private final MessageSignatureCache messageSignatureCache = MessageSignatureCache.createDefault();
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private final FutureChain chatMessageChain;
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private boolean waitingForSwitchToConfig;
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+ private static final int MAX_SIGN_LINE_LENGTH = Integer.getInteger("Paper.maxSignLength", 80); // Paper - Limit client sign length
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public ServerGamePacketListenerImpl(MinecraftServer server, Connection connection, ServerPlayer player, CommonListenerCookie clientData) {
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super(server, connection, clientData, player); // CraftBukkit
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@@ -3151,7 +3152,19 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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@Override
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public void handleSignUpdate(ServerboundSignUpdatePacket packet) {
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- List<String> list = (List) Stream.of(packet.getLines()).map(ChatFormatting::stripFormatting).collect(Collectors.toList());
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+ // Paper start - Limit client sign length
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+ String[] lines = packet.getLines();
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+ for (int i = 0; i < lines.length; ++i) {
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+ if (MAX_SIGN_LINE_LENGTH > 0 && lines[i].length() > MAX_SIGN_LINE_LENGTH) {
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+ // This handles multibyte characters as 1
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+ int offset = lines[i].codePoints().limit(MAX_SIGN_LINE_LENGTH).map(Character::charCount).sum();
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+ if (offset < lines[i].length()) {
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+ lines[i] = lines[i].substring(0, offset); // this will break any filtering, but filtering is NYI as of 1.17
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+ }
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+ }
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+ }
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+ List<String> list = (List) Stream.of(lines).map(ChatFormatting::stripFormatting).collect(Collectors.toList());
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+ // Paper end - Limit client sign length
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this.filterTextPacket(list).thenAcceptAsync((list1) -> {
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this.updateSignText(packet, list1);
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