Purpur/patches/server/0013-AFK-API.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Thu, 8 Aug 2019 15:29:15 -0500
Subject: [PATCH] AFK API


diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 749145ac5ee84b5ebbf4b1eba2df680c1c51bd88..d4ed1dd4e4c56cf40632b0857af82a944579da65 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -2641,8 +2641,68 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player imple
 
     public void resetLastActionTime() {
         this.lastActionTime = Util.getMillis();
+        this.setAfk(false); // Purpur
     }
 
+    // Purpur Start
+    private boolean isAfk = false;
+
+    @Override
+    public void setAfk(boolean afk) {
+        if (this.isAfk == afk) {
+            return;
+        }
+
+        String msg = afk ? org.purpurmc.purpur.PurpurConfig.afkBroadcastAway : org.purpurmc.purpur.PurpurConfig.afkBroadcastBack;
+
+        org.purpurmc.purpur.event.PlayerAFKEvent event = new org.purpurmc.purpur.event.PlayerAFKEvent(this.getBukkitEntity(), afk, this.level().purpurConfig.idleTimeoutKick, msg, !Bukkit.isPrimaryThread());
+        if (!event.callEvent() || event.shouldKick()) {
+            return;
+        }
+
+        this.isAfk = afk;
+
+        if (!afk) {
+            resetLastActionTime();
+        }
+
+        msg = event.getBroadcastMsg();
+        if (msg != null && !msg.isEmpty()) {
+            String playerName = this.getGameProfile().getName();
+            if (org.purpurmc.purpur.PurpurConfig.afkBroadcastUseDisplayName) {
+                net.kyori.adventure.text.Component playerDisplayNameComponent = net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(this.getBukkitEntity().getDisplayName());
+                playerName = net.kyori.adventure.text.serializer.plain.PlainTextComponentSerializer.plainText().serialize(playerDisplayNameComponent);
+            }
+            server.getPlayerList().broadcastMiniMessage(String.format(msg, playerName), false);
+        }
+
+        if (this.level().purpurConfig.idleTimeoutUpdateTabList) {
+            String scoreboardName = getScoreboardName();
+            String playerListName = net.kyori.adventure.text.minimessage.MiniMessage.miniMessage().serialize(getBukkitEntity().playerListName());
+            String[] split = playerListName.split(scoreboardName);
+            String prefix = (split.length > 0 ? split[0] : "").replace(org.purpurmc.purpur.PurpurConfig.afkTabListPrefix, "");
+            String suffix = (split.length > 1 ? split[1] : "").replace(org.purpurmc.purpur.PurpurConfig.afkTabListSuffix, "");
+            if (afk) {
+                getBukkitEntity().setPlayerListName(org.purpurmc.purpur.PurpurConfig.afkTabListPrefix + prefix + scoreboardName + suffix + org.purpurmc.purpur.PurpurConfig.afkTabListSuffix, true);
+            } else {
+                getBukkitEntity().setPlayerListName(prefix + scoreboardName + suffix, true);
+            }
+        }
+
+        ((ServerLevel) this.level()).updateSleepingPlayerList();
+    }
+
+    @Override
+    public boolean isAfk() {
+        return this.isAfk;
+    }
+
+    @Override
+    public boolean canBeCollidedWith() {
+        return !this.isAfk() && super.canBeCollidedWith();
+    }
+    // Purpur End
+
     public ServerStatsCounter getStats() {
         return this.stats;
     }
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index d2145df4e9b0dd16e7d394b8983c36fd073d3e31..f48b13b9b57e3a25e8afeb37f54e883fd1cadf4d 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -342,6 +342,20 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
     private boolean justTeleported = false;
     // CraftBukkit end
 
+        // Purpur start
+    private final com.google.common.cache.LoadingCache<CraftPlayer, Boolean> kickPermissionCache = com.google.common.cache.CacheBuilder.newBuilder()
+        .maximumSize(1000)
+        .expireAfterWrite(1, java.util.concurrent.TimeUnit.MINUTES)
+        .build(
+            new com.google.common.cache.CacheLoader<>() {
+                @Override
+                public Boolean load(CraftPlayer player) {
+                    return player.hasPermission("purpur.bypassIdleKick");
+                }
+            }
+        );
+    // Purpur end
+
     @Override
     public void tick() {
         if (this.ackBlockChangesUpTo > -1) {
@@ -398,6 +412,12 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
         this.recipeSpamPackets.tick(); // Paper - auto recipe limit
         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.wonGame) { // Paper - Prevent AFK kick while watching end credits
+            // Purpur start
+            this.player.setAfk(true);
+            if (!this.player.level().purpurConfig.idleTimeoutKick || (!Boolean.parseBoolean(System.getenv("PURPUR_FORCE_IDLE_KICK")) && kickPermissionCache.getUnchecked(this.player.getBukkitEntity()))) {
+                return;
+            }
+            // Purpur end
             this.player.resetLastActionTime(); // CraftBukkit - SPIGOT-854
             this.disconnect((Component) Component.translatable("multiplayer.disconnect.idling"), org.bukkit.event.player.PlayerKickEvent.Cause.IDLING); // Paper - kick event cause
         }
@@ -663,6 +683,8 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
                     this.lastYaw = to.getYaw();
                     this.lastPitch = to.getPitch();
 
+                    if (!to.getWorld().getUID().equals(from.getWorld().getUID()) || to.getBlockX() != from.getBlockX() || to.getBlockY() != from.getBlockY() || to.getBlockZ() != from.getBlockZ() || to.getYaw() != from.getYaw() || to.getPitch() != from.getPitch()) this.player.resetLastActionTime(); // Purpur
+
                     Location oldTo = to.clone();
                     PlayerMoveEvent event = new PlayerMoveEvent(player, from, to);
                     this.cserver.getPluginManager().callEvent(event);
@@ -1501,7 +1523,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
                                     movedWrongly = true;
                                     if (event.getLogWarning())
                                 // Paper end
-                                ServerGamePacketListenerImpl.LOGGER.warn("{} moved wrongly!", this.player.getName().getString());
+                                ServerGamePacketListenerImpl.LOGGER.warn("{} moved wrongly!, ({})", this.player.getName().getString(), d11); // Purpur
                                 } // Paper
                             }
 
@@ -1569,6 +1591,8 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
                                     this.lastYaw = to.getYaw();
                                     this.lastPitch = to.getPitch();
 
+                                    if (!to.getWorld().getUID().equals(from.getWorld().getUID()) || to.getBlockX() != from.getBlockX() || to.getBlockY() != from.getBlockY() || to.getBlockZ() != from.getBlockZ() || to.getYaw() != from.getYaw() || to.getPitch() != from.getPitch()) this.player.resetLastActionTime(); // Purpur
+
                                     Location oldTo = to.clone();
                                     PlayerMoveEvent event = new PlayerMoveEvent(player, from, to);
                                     this.cserver.getPluginManager().callEvent(event);
diff --git a/src/main/java/net/minecraft/server/players/SleepStatus.java b/src/main/java/net/minecraft/server/players/SleepStatus.java
index 823efad652d8ff9e96b99375b102fef6f017716e..caa8a69bde0c212c36dd990a67836ac2f95548c0 100644
--- a/src/main/java/net/minecraft/server/players/SleepStatus.java
+++ b/src/main/java/net/minecraft/server/players/SleepStatus.java
@@ -19,7 +19,7 @@ public class SleepStatus {
 
     public boolean areEnoughDeepSleeping(int percentage, List<ServerPlayer> players) {
         // CraftBukkit start
-        int j = (int) players.stream().filter((eh) -> { return eh.isSleepingLongEnough() || eh.fauxSleeping; }).count();
+        int j = (int) players.stream().filter((eh) -> { return eh.isSleepingLongEnough() || eh.fauxSleeping || (eh.level().purpurConfig.idleTimeoutCountAsSleeping && eh.isAfk()); }).count(); // Purpur
         boolean anyDeepSleep = players.stream().anyMatch(Player::isSleepingLongEnough);
 
         return anyDeepSleep && j >= this.sleepersNeeded(percentage);
@@ -52,7 +52,7 @@ public class SleepStatus {
 
             if (!entityplayer.isSpectator()) {
                 ++this.activePlayers;
-                if (entityplayer.isSleeping() || entityplayer.fauxSleeping) { // CraftBukkit
+                if ((entityplayer.isSleeping() || entityplayer.fauxSleeping) || (entityplayer.level().purpurConfig.idleTimeoutCountAsSleeping && entityplayer.isAfk())) { // CraftBukkit // Purpur
                     ++this.sleepingPlayers;
                 }
                 // CraftBukkit start
diff --git a/src/main/java/net/minecraft/world/entity/EntitySelector.java b/src/main/java/net/minecraft/world/entity/EntitySelector.java
index 6bf691fcc6486bde73bae30eff09142802c29eda..59c4d3753c7084e92402608b7fb3c4adbc6c2f65 100644
--- a/src/main/java/net/minecraft/world/entity/EntitySelector.java
+++ b/src/main/java/net/minecraft/world/entity/EntitySelector.java
@@ -39,6 +39,7 @@ public final class EntitySelector {
         return net.minecraft.util.Mth.clamp(serverPlayer.getStats().getValue(net.minecraft.stats.Stats.CUSTOM.get(net.minecraft.stats.Stats.TIME_SINCE_REST)), 1, Integer.MAX_VALUE) >= playerInsomniaTicks;
     };
     // Paper end - Ability to control player's insomnia and phantoms
+    public static Predicate<Player> notAfk = (player) -> !player.isAfk(); // Purpur
 
     private EntitySelector() {}
     // Paper start - Affects Spawning API
diff --git a/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java b/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java
index 52982c1e6a4da36392569c791853279f5f9ac31a..b3d4c61b1769b6fcc98b7af854f774d24bf39d98 100644
--- a/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java
+++ b/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java
@@ -64,6 +64,10 @@ public class TargetingConditions {
             return false;
         } else if (this.selector != null && !this.selector.test(target, world)) {
             return false;
+        // Purpur start
+        } else if (!world.purpurConfig.idleTimeoutTargetPlayer && target instanceof net.minecraft.server.level.ServerPlayer player && player.isAfk()) {
+            return false;
+        // Purpur end
         } else {
             if (tester == null) {
                 if (this.isCombat && (!target.canBeSeenAsEnemy() || world.getDifficulty() == Difficulty.PEACEFUL)) {
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index 7e9f9b1f9e932116fc12db9cc2c0135144156eda..d1b6e7cf8d110d9106ea99431cf9719ea3b102d5 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -203,6 +203,13 @@ public abstract class Player extends LivingEntity {
     public boolean fauxSleeping;
     public int oldLevel = -1;
 
+    public void setAfk(boolean afk) {
+    }
+
+    public boolean isAfk() {
+        return false;
+    }
+
     @Override
     public CraftHumanEntity getBukkitEntity() {
         return (CraftHumanEntity) super.getBukkitEntity();
diff --git a/src/main/java/net/minecraft/world/level/EntityGetter.java b/src/main/java/net/minecraft/world/level/EntityGetter.java
index 5d7a6e4b73f032db356e7ec369b150013e940ee6..6b2cda6d578a0983b2401ea20629275431018433 100644
--- a/src/main/java/net/minecraft/world/level/EntityGetter.java
+++ b/src/main/java/net/minecraft/world/level/EntityGetter.java
@@ -184,7 +184,7 @@ public interface EntityGetter extends ca.spottedleaf.moonrise.patches.chunk_syst
 
     default boolean hasNearbyAlivePlayer(double x, double y, double z, double range) {
         for (Player player : this.players()) {
-            if (EntitySelector.NO_SPECTATORS.test(player) && EntitySelector.LIVING_ENTITY_STILL_ALIVE.test(player)) {
+            if (EntitySelector.NO_SPECTATORS.test(player) && EntitySelector.LIVING_ENTITY_STILL_ALIVE.test(player) && EntitySelector.notAfk.test(player)) { // Purpur
                 double d = player.distanceToSqr(x, y, z);
                 if (range < 0.0 || d < range * range) {
                     return true;
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 3d2322233aff511bcc5c85b24230c2e08dc0bcd0..358f42585c865efbd814787879f919f70234e5c4 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -583,10 +583,15 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
 
     @Override
     public void setPlayerListName(String name) {
+        // Purpur start
+        setPlayerListName(name, false);
+    }
+    public void setPlayerListName(String name, boolean useMM) {
+        // Purpur end
         if (name == null) {
             name = this.getName();
         }
-        this.getHandle().listName = name.equals(this.getName()) ? null : CraftChatMessage.fromStringOrNull(name);
+        this.getHandle().listName = name.equals(this.getName()) ? null : useMM ? io.papermc.paper.adventure.PaperAdventure.asVanilla(net.kyori.adventure.text.minimessage.MiniMessage.miniMessage().deserialize(name)) : CraftChatMessage.fromStringOrNull(name); // Purpur
         if (this.getHandle().connection == null) return; // Paper - Updates are possible before the player has fully joined
         for (ServerPlayer player : (List<ServerPlayer>) this.server.getHandle().players) {
             if (player.getBukkitEntity().canSee(this)) {
@@ -3586,5 +3591,20 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
     public boolean usesPurpurClient() {
         return getHandle().purpurClient;
     }
+
+    @Override
+    public boolean isAfk() {
+        return getHandle().isAfk();
+    }
+
+    @Override
+    public void setAfk(boolean setAfk) {
+        getHandle().setAfk(setAfk);
+    }
+
+    @Override
+    public void resetIdleTimer() {
+        getHandle().resetLastActionTime();
+    }
     // Purpur end
 }
diff --git a/src/main/java/org/purpurmc/purpur/PurpurConfig.java b/src/main/java/org/purpurmc/purpur/PurpurConfig.java
index a83117ed0a0c98d7ae18e925338b58930946c96a..a6728ce7ac27512676cfa06fdfbfb8652f8ff6a5 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurConfig.java
@@ -177,8 +177,18 @@ public class PurpurConfig {
     }
 
     public static String cannotRideMob = "<red>You cannot mount that mob";
+    public static String afkBroadcastAway = "<yellow><italic>%s is now AFK";
+    public static String afkBroadcastBack = "<yellow><italic>%s is no longer AFK";
+    public static boolean afkBroadcastUseDisplayName = false;
+    public static String afkTabListPrefix = "[AFK] ";
+    public static String afkTabListSuffix = "";
     private static void messages() {
         cannotRideMob = getString("settings.messages.cannot-ride-mob", cannotRideMob);
+        afkBroadcastAway = getString("settings.messages.afk-broadcast-away", afkBroadcastAway);
+        afkBroadcastBack = getString("settings.messages.afk-broadcast-back", afkBroadcastBack);
+        afkBroadcastUseDisplayName = getBoolean("settings.messages.afk-broadcast-use-display-name", afkBroadcastUseDisplayName);
+        afkTabListPrefix = MiniMessage.miniMessage().serialize(MiniMessage.miniMessage().deserialize(getString("settings.messages.afk-tab-list-prefix", afkTabListPrefix)));
+        afkTabListSuffix = MiniMessage.miniMessage().serialize(MiniMessage.miniMessage().deserialize(getString("settings.messages.afk-tab-list-suffix", afkTabListSuffix)));
     }
 
     public static int barrelRows = 3;
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index ee9bcb7d011f20575cbbbe2e0ded1e53087aba7a..9b1a4502aa6c26c7524ec17697250317b7f381fd 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -91,6 +91,24 @@ public class PurpurWorldConfig {
         return value.isEmpty() ? fallback : value;
     }
 
+    public boolean idleTimeoutKick = true;
+    public boolean idleTimeoutTickNearbyEntities = true;
+    public boolean idleTimeoutCountAsSleeping = false;
+    public boolean idleTimeoutUpdateTabList = false;
+    public boolean idleTimeoutTargetPlayer = true;
+    private void playerSettings() {
+        if (PurpurConfig.version < 19) {
+            boolean oldVal = getBoolean("gameplay-mechanics.player.idle-timeout.mods-target", idleTimeoutTargetPlayer);
+            set("gameplay-mechanics.player.idle-timeout.mods-target", null);
+            set("gameplay-mechanics.player.idle-timeout.mobs-target", oldVal);
+        }
+        idleTimeoutKick = System.getenv("PURPUR_FORCE_IDLE_KICK") == null ? getBoolean("gameplay-mechanics.player.idle-timeout.kick-if-idle", idleTimeoutKick) : Boolean.parseBoolean(System.getenv("PURPUR_FORCE_IDLE_KICK"));
+        idleTimeoutTickNearbyEntities = getBoolean("gameplay-mechanics.player.idle-timeout.tick-nearby-entities", idleTimeoutTickNearbyEntities);
+        idleTimeoutCountAsSleeping = getBoolean("gameplay-mechanics.player.idle-timeout.count-as-sleeping", idleTimeoutCountAsSleeping);
+        idleTimeoutUpdateTabList = getBoolean("gameplay-mechanics.player.idle-timeout.update-tab-list", idleTimeoutUpdateTabList);
+        idleTimeoutTargetPlayer = getBoolean("gameplay-mechanics.player.idle-timeout.mobs-target", idleTimeoutTargetPlayer);
+    }
+
     public boolean babiesAreRidable = true;
     public boolean untamedTamablesAreRidable = true;
     public boolean useNightVisionWhenRiding = false;
diff --git a/src/main/java/org/spigotmc/ActivationRange.java b/src/main/java/org/spigotmc/ActivationRange.java
index bc525c7843b9cc0f7705c0dc6795c05f4e5b4bb1..a017374f2027946ef465cf41fd6ed6de7f00e19f 100644
--- a/src/main/java/org/spigotmc/ActivationRange.java
+++ b/src/main/java/org/spigotmc/ActivationRange.java
@@ -203,6 +203,8 @@ public class ActivationRange
                 continue;
             }
 
+            if (!player.level().purpurConfig.idleTimeoutTickNearbyEntities && player.isAfk()) continue; // Purpur
+
             // Paper start
             int worldHeight = world.getHeight();
             ActivationRange.maxBB = player.getBoundingBox().inflate( maxRange, worldHeight, maxRange );