mirror of
https://github.com/PaperMC/Waterfall.git
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42619795e1
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: 0509303f #3519: Queue configuration phase packets from API methods f486a251 #3518: Bump io.netty:netty-bom from 4.1.97.Final to 4.1.98.Final
112 lines
4.1 KiB
Diff
112 lines
4.1 KiB
Diff
From 49229d1749cebd2fbd7ce9f73925e2f88ba6d46c Mon Sep 17 00:00:00 2001
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From: Johannes Donath <johannesd@torchmind.com>
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Date: Sat, 4 Jul 2015 06:31:33 +0200
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Subject: [PATCH] Add basic support for configurable tab-complete throttling
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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
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index 6495e7f2..b6845bc4 100644
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--- a/api/src/main/java/net/md_5/bungee/api/ProxyConfig.java
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+++ b/api/src/main/java/net/md_5/bungee/api/ProxyConfig.java
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@@ -130,4 +130,21 @@ public interface ProxyConfig
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// Waterfall Options
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//
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+ // Throttling options
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+
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+ /**
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+ * How often tab-complete packets can be sent.
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+ * <br>
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+ * Values in milliseconds.
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+ *
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+ * @return how often tab-complete packets can be sent in milliseconds
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+ */
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+ int getTabThrottle();
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+
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+ /**
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+ * Should we disable the tab completion limit for 1.13+ clients
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+ *
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+ * @return should we disable the tab completion limit for 1.13+ clients
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+ */
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+ boolean isDisableModernTabLimiter();
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}
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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
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index 741ebfde..91743f01 100644
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--- a/proxy/src/main/java/io/github/waterfallmc/waterfall/conf/WaterfallConfiguration.java
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+++ b/proxy/src/main/java/io/github/waterfallmc/waterfall/conf/WaterfallConfiguration.java
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@@ -7,11 +7,37 @@ import java.io.File;
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public class WaterfallConfiguration extends Configuration {
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+ /*
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+ * Throttling options
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+ * Helps prevent players from overloading the servers behind us
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+ */
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+
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+ /**
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+ * How often players are allowed to send tab throttle.
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+ * Value in milliseconds.
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+ * <p/>
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+ * Default is one packet per second.
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+ */
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+ private int tabThrottle = 1000;
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+ private boolean disableModernTabLimiter = true;
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+
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@Override
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public void load() {
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super.load();
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YamlConfig config = new YamlConfig(new File("waterfall.yml"));
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config.load(false); // Load, but no permissions
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+ // Throttling options
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+ tabThrottle = config.getInt("throttling.tab_complete", tabThrottle);
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+ disableModernTabLimiter = config.getBoolean("disable_modern_tab_limiter", disableModernTabLimiter);
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}
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+ @Override
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+ public int getTabThrottle() {
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+ return tabThrottle;
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+ }
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+
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+ @Override
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+ public boolean isDisableModernTabLimiter() {
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+ return disableModernTabLimiter;
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+ }
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}
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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
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index 48a523c6..cfad8f53 100644
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--- a/proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java
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+++ b/proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java
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@@ -48,6 +48,8 @@ public class UpstreamBridge extends PacketHandler
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private final ProxyServer bungee;
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private final UserConnection con;
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+ private long lastTabCompletion = -1;
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+
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public UpstreamBridge(ProxyServer bungee, UserConnection con)
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{
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this.bungee = bungee;
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@@ -214,6 +216,20 @@ public class UpstreamBridge extends PacketHandler
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@Override
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public void handle(TabCompleteRequest tabComplete) throws Exception
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{
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+ // Waterfall start - tab limiter
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+ if ( bungee.getConfig().getTabThrottle() > 0 &&
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+ ( con.getPendingConnection().getVersion() >= ProtocolConstants.MINECRAFT_1_13
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+ && !bungee.getConfig().isDisableModernTabLimiter()))
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+ {
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+ long now = System.currentTimeMillis();
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+ if ( lastTabCompletion > 0 && (now - lastTabCompletion) <= bungee.getConfig().getTabThrottle() )
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+ {
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+ throw CancelSendSignal.INSTANCE;
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+ }
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+ lastTabCompletion = now;
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+ }
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+
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+ // Waterfall end - tab limiter
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List<String> suggestions = new ArrayList<>();
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boolean isRegisteredCommand = false;
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boolean isCommand = tabComplete.getCursor().startsWith( "/" );
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--
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2.42.0
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