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Paper/Spigot-Server-Patches/0330-Detect-and-repair-corrupt-Region-Files.patch

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Switch to using ForgeFlower for Paper Only mc-dev imports ForgeFlower is better than Spigots FernFlower at decompiling the source. However, in order to maintain the CraftBukkit patches, we must keep using spigots for the primary. However, for any file that we import on top of Spigots imported files there is nothing stopping us from using better decompiled files. So these changes will use ForgeFlower to maintain a better set of decomped files, so anything we add on top of Paper can start off in a better spot.
2018-09-01 00:56:57 +02:00
From e232364bbe6742e92b63345842d63483cdcfe77f Mon Sep 17 00:00:00 2001
Detect and repair corrupt Region Files - Closes #1317 If the file has partial data written but not the full 8192 bytes, then the server will be unable to load that region file... I don't know why mojang only checks for 4096, when anything less than 8192 is a crash. But to be safe, it will attempt to back up the file.
2018-08-11 06:55:42 +02:00
From: Aikar <aikar@aikar.co>
Date: Sat, 11 Aug 2018 00:49:20 -0400
Subject: [PATCH] Detect and repair corrupt Region Files
If the file has partial data written but not the full 8192 bytes,
then the server will be unable to load that region file...
I don't know why mojang only checks for 4096, when anything less than 8192 is a crash.
But to be safe, it will attempt to back up the file.
diff --git a/src/main/java/net/minecraft/server/RegionFile.java b/src/main/java/net/minecraft/server/RegionFile.java
Switch to using ForgeFlower for Paper Only mc-dev imports ForgeFlower is better than Spigots FernFlower at decompiling the source. However, in order to maintain the CraftBukkit patches, we must keep using spigots for the primary. However, for any file that we import on top of Spigots imported files there is nothing stopping us from using better decompiled files. So these changes will use ForgeFlower to maintain a better set of decomped files, so anything we add on top of Paper can start off in a better spot.
2018-09-01 00:56:57 +02:00
index 5d2853b9ce..c35974aa7c 100644
Detect and repair corrupt Region Files - Closes #1317 If the file has partial data written but not the full 8192 bytes, then the server will be unable to load that region file... I don't know why mojang only checks for 4096, when anything less than 8192 is a crash. But to be safe, it will attempt to back up the file.
2018-08-11 06:55:42 +02:00
--- a/src/main/java/net/minecraft/server/RegionFile.java
+++ b/src/main/java/net/minecraft/server/RegionFile.java
Switch to using ForgeFlower for Paper Only mc-dev imports ForgeFlower is better than Spigots FernFlower at decompiling the source. However, in order to maintain the CraftBukkit patches, we must keep using spigots for the primary. However, for any file that we import on top of Spigots imported files there is nothing stopping us from using better decompiled files. So these changes will use ForgeFlower to maintain a better set of decomped files, so anything we add on top of Paper can start off in a better spot.
2018-09-01 00:56:57 +02:00
@@ -40,7 +40,20 @@ public class RegionFile {
Detect and repair corrupt Region Files - Closes #1317 If the file has partial data written but not the full 8192 bytes, then the server will be unable to load that region file... I don't know why mojang only checks for 4096, when anything less than 8192 is a crash. But to be safe, it will attempt to back up the file.
2018-08-11 06:55:42 +02:00
}
Switch to using ForgeFlower for Paper Only mc-dev imports ForgeFlower is better than Spigots FernFlower at decompiling the source. However, in order to maintain the CraftBukkit patches, we must keep using spigots for the primary. However, for any file that we import on top of Spigots imported files there is nothing stopping us from using better decompiled files. So these changes will use ForgeFlower to maintain a better set of decomped files, so anything we add on top of Paper can start off in a better spot.
2018-09-01 00:56:57 +02:00
this.c = new RandomAccessFile(file1, "rw");
Detect and repair corrupt Region Files - Closes #1317 If the file has partial data written but not the full 8192 bytes, then the server will be unable to load that region file... I don't know why mojang only checks for 4096, when anything less than 8192 is a crash. But to be safe, it will attempt to back up the file.
2018-08-11 06:55:42 +02:00
- if (this.c.length() < 4096L) {
+ // Paper start - detect and fix incomplete headers
+ long length = this.c.length();
+ if (length < 8192 && length > 0) {
Switch to using ForgeFlower for Paper Only mc-dev imports ForgeFlower is better than Spigots FernFlower at decompiling the source. However, in order to maintain the CraftBukkit patches, we must keep using spigots for the primary. However, for any file that we import on top of Spigots imported files there is nothing stopping us from using better decompiled files. So these changes will use ForgeFlower to maintain a better set of decomped files, so anything we add on top of Paper can start off in a better spot.
2018-09-01 00:56:57 +02:00
+ File corrupt = new File(file1.getParentFile(), file1.getName() + ".bak");
Detect and repair corrupt Region Files - Closes #1317 If the file has partial data written but not the full 8192 bytes, then the server will be unable to load that region file... I don't know why mojang only checks for 4096, when anything less than 8192 is a crash. But to be safe, it will attempt to back up the file.
2018-08-11 06:55:42 +02:00
+ org.apache.logging.log4j.Logger logger = org.apache.logging.log4j.LogManager.getLogger();
Switch to using ForgeFlower for Paper Only mc-dev imports ForgeFlower is better than Spigots FernFlower at decompiling the source. However, in order to maintain the CraftBukkit patches, we must keep using spigots for the primary. However, for any file that we import on top of Spigots imported files there is nothing stopping us from using better decompiled files. So these changes will use ForgeFlower to maintain a better set of decomped files, so anything we add on top of Paper can start off in a better spot.
2018-09-01 00:56:57 +02:00
+ logger.error("Region file " + file1 + " was incomplete. Backing up to " + corrupt + " and repairing");
Detect and repair corrupt Region Files - Closes #1317 If the file has partial data written but not the full 8192 bytes, then the server will be unable to load that region file... I don't know why mojang only checks for 4096, when anything less than 8192 is a crash. But to be safe, it will attempt to back up the file.
2018-08-11 06:55:42 +02:00
+ try {
Switch to using ForgeFlower for Paper Only mc-dev imports ForgeFlower is better than Spigots FernFlower at decompiling the source. However, in order to maintain the CraftBukkit patches, we must keep using spigots for the primary. However, for any file that we import on top of Spigots imported files there is nothing stopping us from using better decompiled files. So these changes will use ForgeFlower to maintain a better set of decomped files, so anything we add on top of Paper can start off in a better spot.
2018-09-01 00:56:57 +02:00
+ java.nio.file.Files.copy(file1.toPath(), corrupt.toPath());
Detect and repair corrupt Region Files - Closes #1317 If the file has partial data written but not the full 8192 bytes, then the server will be unable to load that region file... I don't know why mojang only checks for 4096, when anything less than 8192 is a crash. But to be safe, it will attempt to back up the file.
2018-08-11 06:55:42 +02:00
+ } catch (IOException e) {
+ logger.error("Error backing up corrupt file", e);
+ }
+ }
+ if (length < 8192L) {
+ // Paper end
Switch to using ForgeFlower for Paper Only mc-dev imports ForgeFlower is better than Spigots FernFlower at decompiling the source. However, in order to maintain the CraftBukkit patches, we must keep using spigots for the primary. However, for any file that we import on top of Spigots imported files there is nothing stopping us from using better decompiled files. So these changes will use ForgeFlower to maintain a better set of decomped files, so anything we add on top of Paper can start off in a better spot.
2018-09-01 00:56:57 +02:00
this.c.write(a);
this.c.write(a);
Detect and repair corrupt Region Files - Closes #1317 If the file has partial data written but not the full 8192 bytes, then the server will be unable to load that region file... I don't know why mojang only checks for 4096, when anything less than 8192 is a crash. But to be safe, it will attempt to back up the file.
2018-08-11 06:55:42 +02:00
this.g += 8192;
--
2.18.0
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