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2fa8efce9b
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: 82af5dc6 SPIGOT-7396: Add PlayerSignOpenEvent 3f0281ca SPIGOT-7063, PR-763: Add DragonBattle#initiateRespawn with custom EnderCrystals f83c8df4 PR-873: Add PlayerRecipeBookClickEvent 14560d39 SPIGOT-7435: Add TeleportCause#EXIT_BED 2cc6db92 SPIGOT-7422, PR-887: Add API to set sherds on decorated pots 36022f02 PR-883: Add ItemFactory#getSpawnEgg 12eb5c46 PR-881: Update Scoreboard Javadocs, remove explicit exception throwing f6d8d44a PR-882: Add modern time API methods to ban API 21a7b710 Upgrade some Maven plugins to reduce warnings 11fd1225 PR-886: Deprecate the SmithingRecipe constructor as it now does nothing dbd1761d SPIGOT-7406: Improve documentation for getDragonBattle CraftBukkit Changes: d548daac2 SPIGOT-7446: BlockState#update not updating a spawner's type to null 70e0bc050 SPIGOT-7447: Fix --forceUpgrade 6752f1d63 SPIGOT-7396: Add PlayerSignOpenEvent 847b4cad5 SPIGOT-7063, PR-1071: Add DragonBattle#initiateRespawn with custom EnderCrystals c335a555f PR-1212: Add PlayerRecipeBookClickEvent 4be756ecb SPIGOT-7445: Fix opening smithing inventory db70bd6ed SPIGOT-7441: Fix issue placing certain items in creative/op f7fa6d993 SPIGOT-7435: Add TeleportCause#EXIT_BED b435e8e8d SPIGOT-7349: Player#setDisplayName not working when message/format unmodified a2fafdd1d PR-1232: Re-add fix for player rotation 7cf863de1 PR-1233: Remove some old MC bug fixes now fixed in vanilla 08ec344ad Fix ChunkGenerator#generateCaves never being called 5daeb502a SPIGOT-7422, PR-1228: Add API to set sherds on decorated pots 52faa6b32 PR-1224: Add ItemFactory#getSpawnEgg 01cae71b7 SPIGOT-7429: Fix LEFT_CLICK_AIR not working for passable entities and spectators a94277a18 PR-1223: Remove non-existent scoreboard display name/prefix/suffix limits 36b107660 PR-1225: Add modern time API methods to ban API 59ead25bc Upgrade some Maven plugins to reduce warnings 202fc5c4e Increase outdated build delay ce545de57 SPIGOT-7398: TextDisplay#setInterpolationDuration incorrectly updates the line width Spigot Changes: b41c46db Rebuild patches 3374045a SPIGOT-7431: Fix EntityMountEvent returning opposite entities 0ca4eb66 Rebuild patches
57 lines
3.1 KiB
Diff
57 lines
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 9a134d65ebb4d004cc1a92fd832975e307667a03..9358e4edc7265326c0ec32e60f596b0f61ee690f 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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@@ -302,6 +302,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
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private final MessageSignatureCache messageSignatureCache;
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private final FutureChain chatMessageChain;
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private static final long KEEPALIVE_LIMIT = Long.getLong("paper.playerconnection.keepalive", 30) * 1000; // Paper - provide property to set keepalive limit
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+ private static final int MAX_SIGN_LINE_LENGTH = Integer.getInteger("Paper.maxSignLength", 80); // Paper
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public ServerGamePacketListenerImpl(MinecraftServer server, Connection connection, ServerPlayer player) {
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this.lastChatTimeStamp = new AtomicReference(Instant.EPOCH);
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@@ -3209,7 +3210,19 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
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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 - cap line length - modified clients can send longer data than normal
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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
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this.filterTextPacket(list).thenAcceptAsync((list1) -> {
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this.updateSignText(packet, list1);
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