Player.setPlayerProfile API

This can be useful for changing name or skins after a player has logged in.

== AT ==
public-f net.minecraft.world.entity.player.Player gameProfile

paper-server/patches/sources/net/minecraft/server/network/ServerLoginPacketListenerImpl.java.patch

@@ -242,11 +242,11 @@
 +
 +        // Paper start - Add more fields to AsyncPlayerPreLoginEvent
 +        final InetAddress rawAddress = ((InetSocketAddress) this.connection.channel.remoteAddress()).getAddress();
-+        com.destroystokyo.paper.profile.PlayerProfile profile = org.bukkit.Bukkit.createProfile(uniqueId, playerName);
++        com.destroystokyo.paper.profile.PlayerProfile profile = com.destroystokyo.paper.profile.CraftPlayerProfile.asBukkitMirror(gameprofile); // Paper - setPlayerProfileAPI
 +        AsyncPlayerPreLoginEvent asyncEvent = new AsyncPlayerPreLoginEvent(playerName, address, rawAddress, uniqueId, this.transferred, profile, this.connection.hostname);
 +        server.getPluginManager().callEvent(asyncEvent);
 +        profile = asyncEvent.getPlayerProfile();
-+        profile.complete();
++        profile.complete(true); // Paper - setPlayerProfileAPI
 +        gameprofile = com.destroystokyo.paper.profile.CraftPlayerProfile.asAuthlibCopy(profile);
 +        playerName = gameprofile.getName();
 +        uniqueId = gameprofile.getId();

paper-server/patches/sources/net/minecraft/server/players/PlayerList.java.patch

@@ -709,7 +709,22 @@
          return entityplayer1;
      }
  
-@@ -524,7 +808,18 @@
+@@ -516,15 +800,32 @@
+     }
+ 
+     public void sendPlayerPermissionLevel(ServerPlayer player) {
++    // Paper start - avoid recalculating permissions if possible
++        this.sendPlayerPermissionLevel(player, true);
++    }
++
++    public void sendPlayerPermissionLevel(ServerPlayer player, boolean recalculatePermissions) {
++    // Paper end - avoid recalculating permissions if possible
+         GameProfile gameprofile = player.getGameProfile();
+         int i = this.server.getProfilePermissions(gameprofile);
+ 
+-        this.sendPlayerPermissionLevel(player, i);
++        this.sendPlayerPermissionLevel(player, i, recalculatePermissions); // Paper - avoid recalculating permissions if possible
+     }
  
      public void tick() {
          if (++this.sendAllPlayerInfoIn > 600) {
@@ -729,7 +744,7 @@
              this.sendAllPlayerInfoIn = 0;
          }
  
-@@ -541,6 +836,25 @@
+@@ -541,6 +842,25 @@
  
      }
  
@@ -755,7 +770,7 @@
      public void broadcastAll(Packet<?> packet, ResourceKey<Level> dimension) {
          Iterator iterator = this.players.iterator();
  
-@@ -554,7 +868,7 @@
+@@ -554,7 +874,7 @@
  
      }
  
@@ -764,7 +779,7 @@
          PlayerTeam scoreboardteam = source.getTeam();
  
          if (scoreboardteam != null) {
-@@ -573,7 +887,7 @@
+@@ -573,7 +893,7 @@
          }
      }
  
@@ -773,7 +788,7 @@
          PlayerTeam scoreboardteam = source.getTeam();
  
          if (scoreboardteam == null) {
-@@ -619,7 +933,7 @@
+@@ -619,7 +939,7 @@
      }
  
      public void deop(GameProfile profile) {
@@ -782,7 +797,7 @@
          ServerPlayer entityplayer = this.getPlayer(profile.getId());
  
          if (entityplayer != null) {
-@@ -643,36 +957,51 @@
+@@ -643,36 +963,51 @@
              player.connection.send(new ClientboundEntityEventPacket(player, b0));
          }
  
@@ -847,7 +862,7 @@
              if (entityplayer != player && entityplayer.level().dimension() == worldKey) {
                  double d4 = x - entityplayer.getX();
                  double d5 = y - entityplayer.getY();
-@@ -687,10 +1016,12 @@
+@@ -687,10 +1022,12 @@
      }
  
      public void saveAll() {
@@ -860,7 +875,7 @@
      }
  
      public UserWhiteList getWhiteList() {
-@@ -712,15 +1043,19 @@
+@@ -712,15 +1049,19 @@
      public void reloadWhiteList() {}
  
      public void sendLevelInfo(ServerPlayer player, ServerLevel world) {
@@ -884,7 +899,7 @@
          }
  
          player.connection.send(new ClientboundGameEventPacket(ClientboundGameEventPacket.LEVEL_CHUNKS_LOAD_START, 0.0F));
-@@ -729,8 +1064,16 @@
+@@ -729,8 +1070,16 @@
  
      public void sendAllPlayerInfo(ServerPlayer player) {
          player.inventoryMenu.sendAllDataToRemote();
@@ -902,7 +917,7 @@
      }
  
      public int getPlayerCount() {
-@@ -786,11 +1129,35 @@
+@@ -786,11 +1135,35 @@
      }
  
      public void removeAll() {
@@ -940,7 +955,7 @@
  
      public void broadcastSystemMessage(Component message, boolean overlay) {
          this.broadcastSystemMessage(message, (entityplayer) -> {
-@@ -819,24 +1186,43 @@
+@@ -819,24 +1192,43 @@
      }
  
      public void broadcastChatMessage(PlayerChatMessage message, ServerPlayer sender, ChatType.Bound params) {
@@ -987,7 +1002,7 @@
          }
  
          if (flag1 && sender != null) {
-@@ -845,20 +1231,27 @@
+@@ -845,20 +1237,27 @@
  
      }
  
@@ -1020,7 +1035,7 @@
                  Path path = file2.toPath();
  
                  if (FileUtil.isPathNormalized(path) && FileUtil.isPathPortable(path) && path.startsWith(file.getPath()) && file2.isFile()) {
-@@ -867,7 +1260,7 @@
+@@ -867,7 +1266,7 @@
              }
  
              serverstatisticmanager = new ServerStatsCounter(this.server, file1);
@@ -1029,7 +1044,7 @@
          }
  
          return serverstatisticmanager;
-@@ -875,13 +1268,13 @@
+@@ -875,13 +1274,13 @@
  
      public PlayerAdvancements getPlayerAdvancements(ServerPlayer player) {
          UUID uuid = player.getUUID();
@@ -1045,7 +1060,7 @@
          }
  
          advancementdataplayer.setPlayer(player);
-@@ -932,15 +1325,28 @@
+@@ -932,15 +1331,28 @@
      }
  
      public void reloadResources() {