77 lines
4.3 KiB
Diff
77 lines
4.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Etil <81570777+etil2jz@users.noreply.github.com>
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Date: Sun, 12 Dec 2021 22:36:22 +0100
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Subject: [PATCH] Alternative Keepalive Handling
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Original code by PurpurMC, licensed under MIT
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You can find the original code on https://github.com/PurpurMC/Purpur
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diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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index 6fc8c5fc8a14e1ea19da8bd01199f7f8be7ce33a..86c213ae5733d407c534e5b5e75e1330c61c8289 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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@@ -227,6 +227,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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private long keepAliveTime = Util.getMillis();
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private boolean keepAlivePending;
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private long keepAliveChallenge;
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+ private java.util.List<Long> keepAlives = new java.util.ArrayList<>(); // Purpur
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// CraftBukkit start - multithreaded fields
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private final AtomicInteger chatSpamTickCount = new AtomicInteger();
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private final java.util.concurrent.atomic.AtomicInteger tabSpamLimiter = new java.util.concurrent.atomic.AtomicInteger(); // Paper - configurable tab spam limits
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@@ -358,6 +359,21 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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long currentTime = Util.getMillis();
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long elapsedTime = currentTime - this.keepAliveTime;
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+ // Purpur start
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+ if (wtf.etil.mirai.MiraiConfig.useAlternateKeepAlive) {
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+ if (elapsedTime >= 1000L) { // 1 second
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+ if (!processedDisconnect && keepAlives.size() > KEEPALIVE_LIMIT) {
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+ LOGGER.warn("{} was kicked due to keepalive timeout!", player.getName());
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+ disconnect(new TranslatableComponent("disconnect.timeout"));
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+ } else {
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+ keepAliveTime = currentTime; // hijack this field for 1 second intervals
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+ keepAlives.add(currentTime); // currentTime is ID
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+ send(new ClientboundKeepAlivePacket(currentTime));
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+ }
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+ }
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+ } else
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+ // Purpur end
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+
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if (this.keepAlivePending) {
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if (!this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // check keepalive limit, don't fire if already disconnected
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ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked due to keepalive timeout!", this.player.getScoreboardName()); // more info
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@@ -3084,6 +3100,16 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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@Override
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public void handleKeepAlive(ServerboundKeepAlivePacket packet) {
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+ // Purpur start
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+ if (wtf.etil.mirai.MiraiConfig.useAlternateKeepAlive) {
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+ long id = packet.getId();
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+ if (keepAlives.size() > 0 && keepAlives.contains(id)) {
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+ int ping = (int) (Util.getMillis() - id);
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+ player.latency = (player.latency * 3 + ping) / 4;
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+ keepAlives.clear(); // we got a valid response, lets roll with it and forget the rest
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+ }
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+ } else
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+ // Purpur end
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//PlayerConnectionUtils.ensureMainThread(packetplayinkeepalive, this, this.player.getWorldServer()); // CraftBukkit // Paper - This shouldn't be on the main thread
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if (this.keepAlivePending && packet.getId() == this.keepAliveChallenge) {
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int i = (int) (Util.getMillis() - this.keepAliveTime);
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diff --git a/src/main/java/wtf/etil/mirai/MiraiConfig.java b/src/main/java/wtf/etil/mirai/MiraiConfig.java
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index 01511376b5548468d63893bf8d69bae7f8f5f521..6b229fef229e136fff7598b9efab974997d48116 100644
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--- a/src/main/java/wtf/etil/mirai/MiraiConfig.java
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+++ b/src/main/java/wtf/etil/mirai/MiraiConfig.java
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@@ -211,6 +211,11 @@ public class MiraiConfig {
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dontSendUselessEntityPackets = getBoolean("dont-send-useless-entity-packets", dontSendUselessEntityPackets);
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}
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+ public static boolean useAlternateKeepAlive = true;
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+ private static void useAlternateKeepAlive() {
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+ useAlternateKeepAlive = getBoolean("use-alternate-keepalive", useAlternateKeepAlive);
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+ }
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+
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}
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\ No newline at end of file
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