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e15167251b
* Drop original implementation for old player sample API * Add extended PaperServerListPingEvent Add a new event that extends the original ServerListPingEvent and allows full control of the response sent to the client. * Implement deprecated player sample API
70 lines
3.5 KiB
Diff
70 lines
3.5 KiB
Diff
From c0932b4bd2689009449872c10b1ef7e8689b5f3f Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Sun, 15 Oct 2017 00:29:07 +0100
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Subject: [PATCH] revert serverside behavior of keepalives
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This patch intends to bump up the time that a client has to reply to the
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server back to 30 seconds as per pre 1.12.2, which allowed clients
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more than enough time to reply potentially allowing them to be less
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tempermental due to lag spikes on the network thread, e.g. that caused
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by plugins that are interacting with netty.
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We also add a system property to allow people to tweak how long the server
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will wait for a reply. There is a compromise here between lower and higher
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values, lower values will mean that dead connections can be closed sooner,
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whereas higher values will make this less sensitive to issues such as spikes
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from networking or during connections flood of chunk packets on slower clients,
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at the cost of dead connections being kept open for longer.
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diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
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index 869a2b402..167e386c8 100644
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--- a/src/main/java/net/minecraft/server/PlayerConnection.java
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+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
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@@ -100,6 +100,7 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
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private int receivedMovePackets;
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private int processedMovePackets;
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private AutoRecipe H = new AutoRecipe();
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+ private static final long KEEPALIVE_LIMIT = Long.getLong("paper.playerconnection.keepalive", 30) * 1000; // Paper - provide property to set keepalive limit
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public PlayerConnection(MinecraftServer minecraftserver, NetworkManager networkmanager, EntityPlayer entityplayer) {
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this.minecraftServer = minecraftserver;
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@@ -179,18 +180,25 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
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}
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this.minecraftServer.methodProfiler.a("keepAlive");
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- long i = this.d();
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-
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- if (i - this.f >= 25000L) { // CraftBukkit
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- if (this.g) {
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- this.disconnect(new ChatMessage("disconnect.timeout", new Object[0]));
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- } else {
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- this.g = true;
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- this.f = i;
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- this.h = i;
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- this.sendPacket(new PacketPlayOutKeepAlive(this.h));
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+ // Paper Start - give clients a longer time to respond to pings as per pre 1.12.2 timings
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+ // This should effectively place the keepalive handling back to "as it was" before 1.12.2
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+ long currentTime = this.getCurrentMillis();
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+ long elapsedTime = currentTime - this.getLastPing();
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+ if (this.isPendingPing()) {
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+ // We're pending a ping from the client
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+ if (!this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // check keepalive limit, don't fire if already disconnected
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+ PlayerConnection.LOGGER.warn("{} was kicked due to keepalive timeout!", this.player.getName()); // more info
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+ this.disconnect(new ChatMessage("disconnect.timeout"));
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+ }
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+ } else {
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+ if (elapsedTime >= 15000L) { // 15 seconds
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+ this.setPendingPing(true);
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+ this.setLastPing(currentTime);
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+ this.setKeepAliveID(currentTime);
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+ this.sendPacket(new PacketPlayOutKeepAlive(this.getKeepAliveID()));
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}
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}
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+ // Paper end
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this.minecraftServer.methodProfiler.b();
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// CraftBukkit start
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--
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2.16.2
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