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6f4fbe1c89
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 Bukkit Changes: 30885166 Update to Minecraft 1.16.4 CraftBukkit Changes: 3af81c71 Update to Minecraft 1.16.4 Spigot Changes: f011ca24 Update to Minecraft 1.16.4 Co-authored-by: Mariell Hoversholm <proximyst@proximyst.com>
78 lines
3.8 KiB
Diff
78 lines
3.8 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: Fri, 16 Nov 2018 23:08:50 -0500
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Subject: [PATCH] Book Size Limits
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Puts some limits on the size of books.
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diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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@@ -0,0 +0,0 @@ public class PaperConfig {
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velocitySecretKey = secret.getBytes(StandardCharsets.UTF_8);
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}
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}
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+
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+ public static int maxBookPageSize = 2560;
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+ public static double maxBookTotalSizeMultiplier = 0.98D;
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+ private static void maxBookSize() {
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+ maxBookPageSize = getInt("settings.book-size.page-max", maxBookPageSize);
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+ maxBookTotalSizeMultiplier = getDouble("settings.book-size.total-multiplier", maxBookTotalSizeMultiplier);
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+ }
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}
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diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/server/PlayerConnection.java
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+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
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@@ -0,0 +0,0 @@ import java.util.function.Consumer;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import javax.annotation.Nullable;
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+import org.apache.commons.lang3.StringEscapeUtils;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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@@ -0,0 +0,0 @@ public class PlayerConnection implements PacketListenerPlayIn {
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@Override
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public void a(PacketPlayInBEdit packetplayinbedit) {
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+ // Paper start
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+ ItemStack testStack = packetplayinbedit.b(); // TODO(Proximyst): Add obfhelper here
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+ if (!server.isPrimaryThread() && !testStack.isEmpty() && testStack.getTag() != null) {
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+ NBTTagList pageList = testStack.getTag().getList("pages", 8);
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+ long byteTotal = 0;
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+ int maxBookPageSize = com.destroystokyo.paper.PaperConfig.maxBookPageSize;
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+ double multiplier = Math.max(0.3D, Math.min(1D, com.destroystokyo.paper.PaperConfig.maxBookTotalSizeMultiplier));
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+ long byteAllowed = maxBookPageSize;
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+ for (int i = 0; i < pageList.size(); ++i) {
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+ String testString = pageList.getString(i);
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+ int byteLength = testString.getBytes(java.nio.charset.StandardCharsets.UTF_8).length;
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+ byteTotal += byteLength;
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+ int length = testString.length();
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+ int multibytes = 0;
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+ if (byteLength != length) {
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+ for (char c : testString.toCharArray()) {
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+ if (c > 127) {
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+ multibytes++;
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+ }
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+ }
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+ }
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+ byteAllowed += (maxBookPageSize * Math.min(1, Math.max(0.1D, (double) length / 255D))) * multiplier;
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+
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+ if (multibytes > 1) {
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+ // penalize MB
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+ byteAllowed -= multibytes;
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+ }
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+ }
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+
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+ if (byteTotal > byteAllowed) {
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+ PlayerConnection.LOGGER.warn(this.player.getName() + " tried to send too large of a book. Book Size: " + byteTotal + " - Allowed: "+ byteAllowed + " - Pages: " + pageList.size());
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+ minecraftServer.scheduleOnMain(() -> this.disconnect("Book too large!"));
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+ return;
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+ }
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+ }
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+ // Paper end
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// CraftBukkit start
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if (this.lastBookTick + 20 > MinecraftServer.currentTick) {
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this.disconnect("Book edited too quickly!");
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