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-rw-r--r--patches/server/0220-Break-up-and-make-tab-spam-limits-configurable.patch52
1 files changed, 52 insertions, 0 deletions
diff --git a/patches/server/0220-Break-up-and-make-tab-spam-limits-configurable.patch b/patches/server/0220-Break-up-and-make-tab-spam-limits-configurable.patch
new file mode 100644
index 0000000000..300f431158
--- /dev/null
+++ b/patches/server/0220-Break-up-and-make-tab-spam-limits-configurable.patch
@@ -0,0 +1,52 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Shane Freeder <[email protected]>
+Date: Sun, 29 Jul 2018 05:02:15 +0100
+Subject: [PATCH] Break up and make tab spam limits configurable
+
+Due to the changes in 1.13, clients will send a tab completion request
+for all bukkit commands in order to factor in the lack of support for
+brigadier and provide backwards support in the API.
+
+Craftbukkit, however; has moved the chat spam limiter to also interact
+with the tab completion request, which while good for avoiding abuse,
+causes 1.13 clients to easilly be kicked from a server in bukkit due
+to this. Removing the spam limit could cause issues for servers, however,
+there is no way for servers to manipulate this without blindly cancelling
+kick events, which only causes additional complications. This also causes
+issues in that the tab spam limit and chat share the same field but different
+limits, meaning that a player having typed a long command may be kicked from
+the server.
+
+Splitting the field up and making it configurable allows for server owners
+to take the burden of this into their own hand without having to rely on
+plugins doing unsafe things.
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index b4edc64f3eacdbfb6187106989d190303b0541ac..0e1abdd619f26dbc334061f5f13ba126ee3006b5 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -276,6 +276,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ private int tickCount;
+ private int ackBlockChangesUpTo = -1;
+ private final TickThrottler chatSpamThrottler = new TickThrottler(20, 200);
++ private final TickThrottler tabSpamThrottler = new TickThrottler(io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.tabSpamIncrement, io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.tabSpamLimit); // Paper - configurable tab spam limits
+ private final TickThrottler dropSpamThrottler = new TickThrottler(20, 1480);
+ private double firstGoodX;
+ private double firstGoodY;
+@@ -391,6 +392,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+
+ this.keepConnectionAlive();
+ this.chatSpamThrottler.tick();
++ this.tabSpamThrottler.tick(); // Paper - configurable tab spam limits
+ this.dropSpamThrottler.tick();
+ if (this.player.getLastActionTime() > 0L && this.server.getPlayerIdleTimeout() > 0 && Util.getMillis() - this.player.getLastActionTime() > (long) this.server.getPlayerIdleTimeout() * 1000L * 60L) {
+ this.player.resetLastActionTime(); // CraftBukkit - SPIGOT-854
+@@ -728,7 +730,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ public void handleCustomCommandSuggestions(ServerboundCommandSuggestionPacket packet) {
+ // PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel()); // Paper - AsyncTabCompleteEvent; run this async
+ // CraftBukkit start
+- if (!this.chatSpamThrottler.isIncrementAndUnderThreshold(1, 500) && !this.server.getPlayerList().isOp(this.player.getGameProfile()) && !this.server.isSingleplayerOwner(this.player.getGameProfile())) {
++ if (!this.tabSpamThrottler.isIncrementAndUnderThreshold() && !this.server.getPlayerList().isOp(this.player.getGameProfile()) && !this.server.isSingleplayerOwner(this.player.getGameProfile())) { // Paper - configurable tab spam limits
+ this.disconnect(Component.translatable("disconnect.spam"));
+ return;
+ }