99 lines
3.4 KiB
Diff
99 lines
3.4 KiB
Diff
From 4b36feac0d134f081b418653e41547fb5b243081 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 293ec4e..66d0b8a 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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@@ -88,4 +88,13 @@ public interface ProxyConfig
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* If metrics is enabled
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*/
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boolean isMetrics();
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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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+ * <p/>
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+ * Values in milliseconds.
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+ */
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+ int getTabThrottle();
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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 1fa3ecd..23a5c94 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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@@ -17,16 +17,36 @@ public class WaterfallConfiguration extends Configuration {
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*/
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private boolean metrics = true;
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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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+
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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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metrics = config.getBoolean("metrics", metrics);
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+ // Throttling options
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+ tabThrottle = config.getInt("throttling.tab_complete", tabThrottle);
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}
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@Override
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public boolean isMetrics() {
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return metrics;
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}
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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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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 23d4f25..28791a6 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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@@ -31,6 +31,8 @@ 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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@@ -121,6 +123,16 @@ 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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+ if ( bungee.getConfig().getTabThrottle() > 0 )
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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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List<String> suggestions = new ArrayList<>();
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if ( tabComplete.getCursor().startsWith( "/" ) )
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--
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2.8.3
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