Waterfall/BungeeCord-Patches/0018-Add-basic-support-for-configurable-tab-complete-thro.patch
Shane Freeder 8050674c86
Updated Upstream (BungeeCord)
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

BungeeCord Changes:
5467e3a8 Minecraft 1.19.3 support
2022-12-07 16:30:18 +00:00

112 lines
4.0 KiB
Diff

From 3d566b44103875552570fe60c2810ee911736707 Mon Sep 17 00:00:00 2001
From: Johannes Donath <johannesd@torchmind.com>
Date: Sat, 4 Jul 2015 06:31:33 +0200
Subject: [PATCH] Add basic support for configurable tab-complete throttling
diff --git a/api/src/main/java/net/md_5/bungee/api/ProxyConfig.java b/api/src/main/java/net/md_5/bungee/api/ProxyConfig.java
index 6495e7f2..b6845bc4 100644
--- a/api/src/main/java/net/md_5/bungee/api/ProxyConfig.java
+++ b/api/src/main/java/net/md_5/bungee/api/ProxyConfig.java
@@ -130,4 +130,21 @@ public interface ProxyConfig
// Waterfall Options
//
+ // Throttling options
+
+ /**
+ * How often tab-complete packets can be sent.
+ * <br>
+ * Values in milliseconds.
+ *
+ * @return how often tab-complete packets can be sent in milliseconds
+ */
+ int getTabThrottle();
+
+ /**
+ * Should we disable the tab completion limit for 1.13+ clients
+ *
+ * @return should we disable the tab completion limit for 1.13+ clients
+ */
+ boolean isDisableModernTabLimiter();
}
diff --git a/proxy/src/main/java/io/github/waterfallmc/waterfall/conf/WaterfallConfiguration.java b/proxy/src/main/java/io/github/waterfallmc/waterfall/conf/WaterfallConfiguration.java
index 741ebfde..91743f01 100644
--- a/proxy/src/main/java/io/github/waterfallmc/waterfall/conf/WaterfallConfiguration.java
+++ b/proxy/src/main/java/io/github/waterfallmc/waterfall/conf/WaterfallConfiguration.java
@@ -7,11 +7,37 @@ import java.io.File;
public class WaterfallConfiguration extends Configuration {
+ /*
+ * Throttling options
+ * Helps prevent players from overloading the servers behind us
+ */
+
+ /**
+ * How often players are allowed to send tab throttle.
+ * Value in milliseconds.
+ * <p/>
+ * Default is one packet per second.
+ */
+ private int tabThrottle = 1000;
+ private boolean disableModernTabLimiter = true;
+
@Override
public void load() {
super.load();
YamlConfig config = new YamlConfig(new File("waterfall.yml"));
config.load(false); // Load, but no permissions
+ // Throttling options
+ tabThrottle = config.getInt("throttling.tab_complete", tabThrottle);
+ disableModernTabLimiter = config.getBoolean("disable_modern_tab_limiter", disableModernTabLimiter);
}
+ @Override
+ public int getTabThrottle() {
+ return tabThrottle;
+ }
+
+ @Override
+ public boolean isDisableModernTabLimiter() {
+ return disableModernTabLimiter;
+ }
}
diff --git a/proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java b/proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java
index 37a17c21..e87cd53a 100644
--- a/proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java
+++ b/proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java
@@ -44,6 +44,8 @@ public class UpstreamBridge extends PacketHandler
private final ProxyServer bungee;
private final UserConnection con;
+ private long lastTabCompletion = -1;
+
public UpstreamBridge(ProxyServer bungee, UserConnection con)
{
this.bungee = bungee;
@@ -211,6 +213,20 @@ public class UpstreamBridge extends PacketHandler
@Override
public void handle(TabCompleteRequest tabComplete) throws Exception
{
+ // Waterfall start - tab limiter
+ if ( bungee.getConfig().getTabThrottle() > 0 &&
+ ( con.getPendingConnection().getVersion() >= ProtocolConstants.MINECRAFT_1_13
+ && !bungee.getConfig().isDisableModernTabLimiter()))
+ {
+ long now = System.currentTimeMillis();
+ if ( lastTabCompletion > 0 && (now - lastTabCompletion) <= bungee.getConfig().getTabThrottle() )
+ {
+ throw CancelSendSignal.INSTANCE;
+ }
+ lastTabCompletion = now;
+ }
+
+ // Waterfall end - tab limiter
List<String> suggestions = new ArrayList<>();
boolean isRegisteredCommand = false;
--
2.38.1