mirror of
https://github.com/PaperMC/Waterfall.git
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182 lines
8.0 KiB
Diff
182 lines
8.0 KiB
Diff
From d1bbde9308d3535bd830daf15e230b03a121e043 Mon Sep 17 00:00:00 2001
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From: Tux <write@imaginarycode.com>
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Date: Wed, 21 Dec 2016 03:13:03 -0500
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Subject: [PATCH] Optionally use async Netty DNS resolver
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We no longer need to cache the address for the session server now.
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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 749059ab..6141128b 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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@@ -221,6 +221,13 @@ public interface ProxyConfig
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*/
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String getGameVersion();
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+ /**
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+ * Whether Netty's async DNS resolver is used for account authentication.
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+ *
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+ * @return whether Netty's async DNS resolver is used for account authentication.
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+ */
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+ boolean isUseNettyDnsResolver();
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+
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// Throttling options
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/**
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diff --git a/proxy/pom.xml b/proxy/pom.xml
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index f5610a53..31e172c7 100644
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--- a/proxy/pom.xml
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+++ b/proxy/pom.xml
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@@ -36,6 +36,20 @@
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<version>${netty.version}</version>
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<scope>compile</scope>
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</dependency>
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+ <!-- Waterfall Start - add Netty DNS resolver -->
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+ <dependency>
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+ <groupId>io.netty</groupId>
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+ <artifactId>netty-resolver-dns</artifactId>
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+ <version>${netty.version}</version>
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+ <scope>compile</scope>
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+ </dependency>
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+ <dependency>
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+ <groupId>io.netty</groupId>
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+ <artifactId>netty-resolver-dns-native-macos</artifactId>
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+ <version>${netty.version}</version>
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+ <classifier>osx-x86_64</classifier>
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+ </dependency>
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+ <!-- Waterfall End -->
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<dependency>
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<groupId>io.netty</groupId>
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<artifactId>netty-handler</artifactId>
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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 111404fb..ef44d334 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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@@ -15,6 +15,12 @@ public class WaterfallConfiguration extends Configuration {
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*/
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private String gameVersion;
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+ /**
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+ * Whether we use Netty's async DNS resolver for the HttpClient.
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+ * <p>Default is true (use Netty's async DNS resolver)</p>
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+ */
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+ private boolean useNettyDnsResolver = true;
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+
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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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@@ -35,6 +41,7 @@ public class WaterfallConfiguration extends Configuration {
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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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gameVersion = config.getString("game_version", "").isEmpty() ? Joiner.on(", ").join(ProtocolConstants.SUPPORTED_VERSIONS) : config.getString("game_version", "");
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+ useNettyDnsResolver = config.getBoolean("use_netty_dns_resolver", useNettyDnsResolver);
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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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@@ -45,6 +52,11 @@ public class WaterfallConfiguration extends Configuration {
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return gameVersion;
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}
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+ @Override
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+ public boolean isUseNettyDnsResolver() {
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+ return useNettyDnsResolver;
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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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diff --git a/proxy/src/main/java/net/md_5/bungee/http/HttpClient.java b/proxy/src/main/java/net/md_5/bungee/http/HttpClient.java
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index e0c52f21..37337429 100644
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--- a/proxy/src/main/java/net/md_5/bungee/http/HttpClient.java
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+++ b/proxy/src/main/java/net/md_5/bungee/http/HttpClient.java
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@@ -28,6 +28,10 @@ public class HttpClient
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public static final int TIMEOUT = 5000;
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private static final Cache<String, InetAddress> addressCache = CacheBuilder.newBuilder().expireAfterWrite( 1, TimeUnit.MINUTES ).build();
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+ // Waterfall Start - optionally use async resolver from Netty
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+ private static final io.netty.resolver.dns.DnsAddressResolverGroup dnsResolverGroup =
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+ new io.netty.resolver.dns.DnsAddressResolverGroup(PipelineUtils.getDatagramChannel(), io.netty.resolver.dns.DefaultDnsServerAddressStreamProvider.INSTANCE);
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+ // Waterfall End
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@SuppressWarnings("UnusedAssignment")
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public static void get(String url, EventLoop eventLoop, final Callback<String> callback)
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@@ -57,19 +61,21 @@ public class HttpClient
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}
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}
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- InetAddress inetHost = addressCache.getIfPresent( uri.getHost() );
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- if ( inetHost == null )
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- {
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- try
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- {
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- inetHost = InetAddress.getByName( uri.getHost() );
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- } catch ( UnknownHostException ex )
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- {
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- callback.done( null, ex );
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- return;
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- }
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- addressCache.put( uri.getHost(), inetHost );
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- }
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+ // Waterfall Start - Move address creation to implementation method
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+ //InetAddress inetHost = addressCache.getIfPresent( uri.getHost() );
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+ //if ( inetHost == null )
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+ //{
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+ // try
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+ // {
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+ // inetHost = InetAddress.getByName( uri.getHost() );
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+ // } catch ( UnknownHostException ex )
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+ // {
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+ // callback.done( null, ex );
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+ // return;
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+ // }
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+ // addressCache.put( uri.getHost(), inetHost );
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+ //}
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+ // Waterfall End
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ChannelFutureListener future = new ChannelFutureListener()
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{
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@@ -92,7 +98,40 @@ public class HttpClient
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}
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};
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+
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+ // Waterfall Start - Optionally use Netty's async DNS Resolver
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+ if (net.md_5.bungee.api.ProxyServer.getInstance().getConfig().isUseNettyDnsResolver()) {
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+ getWithNettyResolver(eventLoop, uri, port, future, callback, ssl);
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+ } else {
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+ getWithDefaultResolver(eventLoop, uri, port, future, callback, ssl);
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+ }
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+ //new Bootstrap().channel( PipelineUtils.getChannel() ).group( eventLoop ).handler( new HttpInitializer( callback, ssl, uri.getHost(), port ) ).
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+ // option( ChannelOption.CONNECT_TIMEOUT_MILLIS, TIMEOUT ).remoteAddress( inetHost, port ).connect().addListener( future );
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+ }
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+
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+ private static void getWithNettyResolver(EventLoop eventLoop, URI uri, int port, ChannelFutureListener future, Callback<String> callback, boolean ssl) {
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+ java.net.InetSocketAddress address = java.net.InetSocketAddress.createUnresolved(uri.getHost(), port);
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+ new Bootstrap().channel( PipelineUtils.getChannel( null ) ).group( eventLoop ).handler( new HttpInitializer( callback, ssl, uri.getHost(), port ) ).
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+ option( ChannelOption.CONNECT_TIMEOUT_MILLIS, TIMEOUT ).resolver(dnsResolverGroup).remoteAddress( address ).connect().addListener( future );
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+ }
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+
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+ private static void getWithDefaultResolver(EventLoop eventLoop, URI uri, int port, ChannelFutureListener future, Callback<String> callback, boolean ssl) {
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+ // This is identical to the Bungee implementation of #get other than the absence of the ChannelFutureListener creation
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+ InetAddress inetHost = addressCache.getIfPresent( uri.getHost() );
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+ if ( inetHost == null )
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+ {
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+ try
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+ {
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+ inetHost = InetAddress.getByName( uri.getHost() );
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+ } catch ( UnknownHostException ex )
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+ {
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+ callback.done( null, ex );
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+ return;
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+ }
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+ addressCache.put( uri.getHost(), inetHost );
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+ }
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new Bootstrap().channel( PipelineUtils.getChannel( null ) ).group( eventLoop ).handler( new HttpInitializer( callback, ssl, uri.getHost(), port ) ).
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option( ChannelOption.CONNECT_TIMEOUT_MILLIS, TIMEOUT ).remoteAddress( inetHost, port ).connect().addListener( future );
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}
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+ // Waterfall End
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}
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--
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2.31.0
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