Paper/patches/server/0602-Allow-skipping-writing-of-comments-to-server.propert.patch
Owen 89d51d5f29
Allow enabling sand duping (#10191)
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable.

It should be noted that this decision does not promise all future exploits will be configurable.
2024-03-03 17:05:34 -05:00

70 lines
3.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Professor Bloodstone <git@bloodstone.dev>
Date: Fri, 23 Jul 2021 02:32:04 +0200
Subject: [PATCH] Allow skipping writing of comments to server.properties
Makes less git noise, as it won't update the date every single time
Use -DPaper.skipServerPropertiesComments=true flag to disable writing it
diff --git a/src/main/java/net/minecraft/server/dedicated/Settings.java b/src/main/java/net/minecraft/server/dedicated/Settings.java
index fc45c2c4ecdf3906df6bceaf3e019c462fe62186..61bf3ccf998bcb9ebd80e983566e7181a73f0e30 100644
--- a/src/main/java/net/minecraft/server/dedicated/Settings.java
+++ b/src/main/java/net/minecraft/server/dedicated/Settings.java
@@ -29,6 +29,7 @@ public abstract class Settings<T extends Settings<T>> {
private static final Logger LOGGER = LogUtils.getLogger();
public final Properties properties;
+ private static final boolean skipComments = Boolean.getBoolean("Paper.skipServerPropertiesComments"); // Paper - allow skipping server.properties comments
// CraftBukkit start
private OptionSet options = null;
@@ -123,7 +124,46 @@ public abstract class Settings<T extends Settings<T>> {
return;
}
// CraftBukkit end
- BufferedWriter bufferedwriter = Files.newBufferedWriter(path, StandardCharsets.UTF_8);
+ // Paper start - allow skipping server.properties comments
+ java.io.OutputStream outputstream = Files.newOutputStream(path);
+ java.io.BufferedOutputStream bufferedOutputStream = !skipComments ? new java.io.BufferedOutputStream(outputstream) : new java.io.BufferedOutputStream(outputstream) {
+ private boolean isRightAfterNewline = true; // If last written char was newline
+ private boolean isComment = false; // Are we writing comment currently?
+
+ @Override
+ public void write(@org.jetbrains.annotations.NotNull byte[] b) throws IOException {
+ this.write(b, 0, b.length);
+ }
+
+ @Override
+ public void write(@org.jetbrains.annotations.NotNull byte[] bbuf, int off, int len) throws IOException {
+ int latest_offset = off; // The latest offset, updated when comment ends
+ for (int index = off; index < off + len; ++index ) {
+ byte c = bbuf[index];
+ boolean isNewline = (c == '\n' || c == '\r');
+ if (isNewline && this.isComment) {
+ // Comment has ended
+ this.isComment = false;
+ latest_offset = index+1;
+ }
+ if (c == '#' && this.isRightAfterNewline) {
+ this.isComment = true;
+ if (index != latest_offset) {
+ // We got some non-comment data earlier
+ super.write(bbuf, latest_offset, index-latest_offset);
+ }
+ }
+ this.isRightAfterNewline = isNewline; // Store for next iteration
+
+ }
+ if (latest_offset < off+len && !this.isComment) {
+ // We have some unwritten data, that isn't part of a comment
+ super.write(bbuf, latest_offset, (off + len) - latest_offset);
+ }
+ }
+ };
+ BufferedWriter bufferedwriter = new BufferedWriter(new java.io.OutputStreamWriter(bufferedOutputStream, java.nio.charset.StandardCharsets.UTF_8.newEncoder()));
+ // Paper end - allow skipping server.properties comments
try {
this.properties.store(bufferedwriter, "Minecraft server properties");