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path: root/patches/server/0278-Replace-OfflinePlayer-getLastPlayed.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach@zachbr.io>
Date: Wed, 2 Jan 2019 00:35:43 -0600
Subject: [PATCH] Replace OfflinePlayer#getLastPlayed

Currently OfflinePlayer#getLastPlayed could more accurately be described
as "OfflinePlayer#getLastTimeTheirDataWasSaved".

The API doc says it should return the last time the server "witnessed"
the player, whilst also saying it should return the last time they
logged in. The current implementation does neither.

Given this interesting contradiction in the API documentation and the
current defacto implementation, I've elected to deprecate (with no
intent to remove) and replace it with two new methods, clearly named and
documented as to their purpose.

diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 08c936288b5ac8738d7cff9fe95b1256ae32cd28..a8de1f58fffe2541478083defc18be949d0c75f1 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -248,6 +248,7 @@ public class ServerPlayer extends Player {
     private int containerCounter;
     public boolean wonGame;
     private int containerUpdateDelay; // Paper - Configurable container update tick rate
+    public long loginTime; // Paper - Replace OfflinePlayer#getLastPlayed
     // Paper start - cancellable death event
     public boolean queueHealthUpdatePacket;
     public net.minecraft.network.protocol.game.ClientboundSetHealthPacket queuedHealthUpdatePacket;
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 7d81334b8bbfc04f1188de777b0cacd6f80131d3..2a0d3319899f0b3f38135e25306b87b1974b3d83 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -180,6 +180,7 @@ public abstract class PlayerList {
 
     public void placeNewPlayer(Connection connection, ServerPlayer player, CommonListenerCookie clientData) {
         player.isRealPlayer = true; // Paper
+        player.loginTime = System.currentTimeMillis(); // Paper - Replace OfflinePlayer#getLastPlayed
         GameProfile gameprofile = player.getGameProfile();
         GameProfileCache usercache = this.server.getProfileCache();
         String s;
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftOfflinePlayer.java b/src/main/java/org/bukkit/craftbukkit/CraftOfflinePlayer.java
index 34925d6448e0ef1d5bb4b24359f732b67aaa4230..0c1b5f625a351905e082b2c2a63bfd737101527e 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftOfflinePlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftOfflinePlayer.java
@@ -262,6 +262,61 @@ public class CraftOfflinePlayer implements OfflinePlayer, ConfigurationSerializa
         return this.getData() != null;
     }
 
+    // Paper start
+    @Override
+    public long getLastLogin() {
+        Player player = getPlayer();
+        if (player != null) return player.getLastLogin();
+
+        CompoundTag data = getPaperData();
+
+        if (data != null) {
+            if (data.contains("LastLogin")) {
+                return data.getLong("LastLogin");
+            } else {
+                // if the player file cannot provide accurate data, this is probably the closest we can approximate
+                File file = getDataFile();
+                return file.lastModified();
+            }
+        } else {
+            return 0;
+        }
+    }
+
+    @Override
+    public long getLastSeen() {
+        Player player = getPlayer();
+        if (player != null) return player.getLastSeen();
+
+        CompoundTag data = getPaperData();
+
+        if (data != null) {
+            if (data.contains("LastSeen")) {
+                return data.getLong("LastSeen");
+            } else {
+                // if the player file cannot provide accurate data, this is probably the closest we can approximate
+                File file = getDataFile();
+                return file.lastModified();
+            }
+        } else {
+            return 0;
+        }
+    }
+
+    private CompoundTag getPaperData() {
+        CompoundTag result = getData();
+
+        if (result != null) {
+            if (!result.contains("Paper")) {
+                result.put("Paper", new CompoundTag());
+            }
+            result = result.getCompound("Paper");
+        }
+
+        return result;
+    }
+    // Paper end
+
     @Override
     public Location getLastDeathLocation() {
         if (this.getData().contains("LastDeathLocation", 10)) {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 317fb90ad77aaaddc6a84d719de94d52bba12508..4a07e7d3df71f3bfc026e1f1c0abfe25999c6b8e 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -197,6 +197,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
     private BorderChangeListener clientWorldBorderListener = this.createWorldBorderListener();
     public org.bukkit.event.player.PlayerResourcePackStatusEvent.Status resourcePackStatus; // Paper - more resource pack API
     private static final boolean DISABLE_CHANNEL_LIMIT = System.getProperty("paper.disableChannelLimit") != null; // Paper - add a flag to disable the channel limit
+    private long lastSaveTime; // Paper - getLastPlayed replacement API
 
     public CraftPlayer(CraftServer server, ServerPlayer entity) {
         super(server, entity);
@@ -1956,6 +1957,18 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         this.firstPlayed = firstPlayed;
     }
 
+    // Paper start - getLastPlayed replacement API
+    @Override
+    public long getLastLogin() {
+        return this.getHandle().loginTime;
+    }
+
+    @Override
+    public long getLastSeen() {
+        return this.isOnline() ? System.currentTimeMillis() : this.lastSaveTime;
+    }
+    // Paper end - getLastPlayed replacement API
+
     public void readExtraData(CompoundTag nbttagcompound) {
         this.hasPlayedBefore = true;
         if (nbttagcompound.contains("bukkit")) {
@@ -1978,6 +1991,8 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
     }
 
     public void setExtraData(CompoundTag nbttagcompound) {
+        this.lastSaveTime = System.currentTimeMillis(); // Paper
+
         if (!nbttagcompound.contains("bukkit")) {
             nbttagcompound.put("bukkit", new CompoundTag());
         }
@@ -1992,6 +2007,16 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         data.putLong("firstPlayed", this.getFirstPlayed());
         data.putLong("lastPlayed", System.currentTimeMillis());
         data.putString("lastKnownName", handle.getScoreboardName());
+
+        // Paper start - persist for use in offline save data
+        if (!nbttagcompound.contains("Paper")) {
+            nbttagcompound.put("Paper", new CompoundTag());
+        }
+
+        CompoundTag paper = nbttagcompound.getCompound("Paper");
+        paper.putLong("LastLogin", handle.loginTime);
+        paper.putLong("LastSeen", System.currentTimeMillis());
+        // Paper end
     }
 
     @Override