From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Dreeam <61569423+Dreeam-qwq@users.noreply.github.com>
Date: Mon, 24 Jun 2024 10:49:04 +0800
Subject: [PATCH] Do not place player if the server is full

Fix https://github.com/PaperMC/Paper/issues/10668

diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 9d2faacd5c9c6e5439c6b8b2e2f7cb2bab4ad8f8..e204f4783ffccc785f8d302019491549184580d3 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -280,6 +280,13 @@ public abstract class PlayerList {
             return;
         }
         // Gale end - MultiPaper - do not place player in world if kicked before being spawned in
+        // Leaf start - Do not place player if the server is full - copied from canPlayerLogin
+        if (org.dreeam.leaf.config.modules.fixes.DontPlacePlayerIfFull.enabled && this.players.size() >= this.maxPlayers && !(player.getBukkitEntity().hasPermission("purpur.joinfullserver") || this.canBypassPlayerLimit(gameprofile))) { // Purpur
+            connection.disconnect(io.papermc.paper.adventure.PaperAdventure.asVanilla(net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(org.spigotmc.SpigotConfig.serverFullMessage)));
+            //playerconnection.disconnect(io.papermc.paper.adventure.PaperAdventure.asVanilla(net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(org.spigotmc.SpigotConfig.serverFullMessage)), org.bukkit.event.player.PlayerKickEvent.Cause.TIMEOUT);
+            return;
+        }
+        // Leaf end - Do not place player if the server is full - copied from canPlayerLogin
 
         Location loc = ev.getSpawnLocation();
         worldserver1 = ((CraftWorld) loc.getWorld()).getHandle();
diff --git a/src/main/java/org/dreeam/leaf/config/modules/fixes/DontPlacePlayerIfFull.java b/src/main/java/org/dreeam/leaf/config/modules/fixes/DontPlacePlayerIfFull.java
new file mode 100644
index 0000000000000000000000000000000000000000..8ca0c6ef982fa45891e67430c729eb1c92235853
--- /dev/null
+++ b/src/main/java/org/dreeam/leaf/config/modules/fixes/DontPlacePlayerIfFull.java
@@ -0,0 +1,21 @@
+package org.dreeam.leaf.config.modules.fixes;
+
+import org.dreeam.leaf.config.ConfigModules;
+import org.dreeam.leaf.config.EnumConfigCategory;
+
+public class DontPlacePlayerIfFull extends ConfigModules {
+
+    public String getBasePath() {
+        return EnumConfigCategory.FIXES.getBaseKeyName();
+    }
+
+    public static boolean enabled = false;
+
+    @Override
+    public void onLoaded() {
+        enabled = config.getBoolean(getBasePath() + ".dont-place-player-if-server-full", enabled, """
+                Don't let player join server if the server is full.
+                If enable this, you should use 'purpur.joinfullserver' permission instead of
+                PlayerLoginEvent#allow to let player join full server.""");
+    }
+}