Adds skin ears from MinecraftCapes.co.uk + Clientside linked account skins + Elytra textures (#539)

* Added ears geometry support

* Added ear fetching from mc capes

* Added support for deadmau5

* Commented, documented and cleaned code

* Allow bedrock players to see their java skin/cape/ears when joining

* Optimised Imports

* Fix missing else statement

* Moved ears and fixed elytra skins

* Added ears config option

* Fixed cape/elytra transparency

* Fixed slim skin geometry

* Fixed async ears request and added alex skin

* Fixed default elytra not showing with no cape

* Moved to normal Base64 functions

Co-authored-by: James Harrison <james@fasttortoise.co.uk>

bootstrap/bukkit/src/main/java/org/geysermc/platform/bukkit/GeyserBukkitConfiguration.java

@@ -116,6 +116,11 @@ public class GeyserBukkitConfiguration implements GeyserConfiguration {
         return config.getBoolean("allow-third-party-capes", true);
     }
 
+    @Override
+    public boolean isAllowThirdPartyEars() {
+        return config.getBoolean("allow-third-party-ears", false);
+    }
+
     @Override
     public String getDefaultLocale() {
         return config.getString("default-locale", "en_us");

bootstrap/bungeecord/src/main/java/org/geysermc/platform/bungeecord/GeyserBungeeConfiguration.java

@@ -115,6 +115,11 @@ public class GeyserBungeeConfiguration implements GeyserConfiguration {
         return config.getBoolean("allow-third-party-capes", true);
     }
 
+    @Override
+    public boolean isAllowThirdPartyEars() {
+        return config.getBoolean("allow-third-party-ears", false);
+    }
+
     @Override
     public String getDefaultLocale() {
         return config.getString("default-locale", "en_us");

bootstrap/sponge/src/main/java/org/geysermc/platform/sponge/GeyserSpongeConfiguration.java

@@ -109,6 +109,11 @@ public class GeyserSpongeConfiguration implements GeyserConfiguration {
         return node.getNode("allow-third-party-capes").getBoolean(true);
     }
 
+    @Override
+    public boolean isAllowThirdPartyEars() {
+        return node.getNode("allow-third-party-ears").getBoolean(false);
+    }
+
     @Override
     public String getDefaultLocale() {
         return node.getNode("default-locale").getString("en_us");

bootstrap/standalone/src/main/java/org/geysermc/platform/standalone/GeyserStandaloneConfiguration.java

@@ -65,6 +65,9 @@ public class GeyserStandaloneConfiguration implements GeyserConfiguration {
     @JsonProperty("allow-third-party-capes")
     private boolean allowThirdPartyCapes;
 
+    @JsonProperty("allow-third-party-ears")
+    private boolean allowThirdPartyEars;
+
     @JsonProperty("default-locale")
     private String defaultLocale;
 

bootstrap/velocity/src/main/java/org/geysermc/platform/velocity/GeyserVelocityConfiguration.java

@@ -70,6 +70,9 @@ public class GeyserVelocityConfiguration implements GeyserConfiguration {
     @JsonProperty("allow-third-party-capes")
     private boolean allowThirdPartyCapes;
 
+    @JsonProperty("allow-third-party-ears")
+    private boolean allowThirdPartyEars;
+
     @JsonProperty("default-locale")
     private String defaultLocale;
 

connector/src/main/java/org/geysermc/connector/GeyserConfiguration.java

@@ -52,6 +52,8 @@ public interface GeyserConfiguration {
 
     boolean isAllowThirdPartyCapes();
 
+    boolean isAllowThirdPartyEars();
+
     String getDefaultLocale();
 
     Path getFloodgateKeyFile();

connector/src/main/java/org/geysermc/connector/network/session/GeyserSession.java

@@ -207,6 +207,17 @@ public class GeyserSession implements CommandSender {
         upstream.sendPacket(playStatusPacket);
     }
 
+    public void fetchOurSkin(PlayerListPacket.Entry entry) {
+        PlayerSkinPacket playerSkinPacket = new PlayerSkinPacket();
+        playerSkinPacket.setUuid(authData.getUUID());
+        playerSkinPacket.setSkin(entry.getSkin());
+        playerSkinPacket.setOldSkinName("OldName");
+        playerSkinPacket.setNewSkinName("NewName");
+        playerSkinPacket.setTrustedSkin(true);
+        upstream.sendPacket(playerSkinPacket);
+        getConnector().getLogger().debug("Sending skin for " + playerEntity.getUsername() + " " + authData.getUUID());
+    }
+
     public void login() {
         if (connector.getAuthType() != AuthType.ONLINE) {
             connector.getLogger().info(

connector/src/main/java/org/geysermc/connector/network/translators/java/entity/player/JavaPlayerListEntryTranslator.java

@@ -25,6 +25,7 @@
 
 package org.geysermc.connector.network.translators.java.entity.player;
 
+import org.geysermc.connector.GeyserConnector;
 import org.geysermc.connector.entity.PlayerEntity;
 import org.geysermc.connector.network.session.GeyserSession;
 import org.geysermc.connector.network.translators.PacketTranslator;
@@ -51,8 +52,12 @@ public class JavaPlayerListEntryTranslator extends PacketTranslator<ServerPlayer
                 boolean self = entry.getProfile().getId().equals(session.getPlayerEntity().getUuid());
 
                 PlayerEntity playerEntity = session.getPlayerEntity();
-                if (self) playerEntity.setProfile(entry.getProfile());
-                else {
+                if (self) {
+                    playerEntity.setProfile(entry.getProfile());
+                    SkinUtils.requestAndHandleSkinAndCape(playerEntity, session, skinAndCape -> {
+                        GeyserConnector.getInstance().getLogger().debug("Loading Local Bedrock Java Skin Data");
+                    });
+                } else {
                     playerEntity = new PlayerEntity(
                             entry.getProfile(),
                             -1,

connector/src/main/java/org/geysermc/connector/utils/SkinProvider.java

@@ -35,10 +35,10 @@ import org.geysermc.connector.GeyserConnector;
 import javax.imageio.ImageIO;
 import java.awt.*;
 import java.awt.image.BufferedImage;
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
+import java.io.*;
 import java.net.URL;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.Base64;
 import java.util.Map;
@@ -51,6 +51,8 @@ public class SkinProvider {
 
     public static final byte[] STEVE_SKIN = new ProvidedSkin("bedrock/skin/skin_steve.png").getSkin();
     public static final Skin EMPTY_SKIN = new Skin(-1, "steve", STEVE_SKIN);
+    public static final byte[] ALEX_SKIN = new ProvidedSkin("bedrock/skin/skin_alex.png").getSkin();
+    public static final Skin EMPTY_SKIN_ALEX = new Skin(-1, "alex", ALEX_SKIN);
     private static Map<UUID, Skin> cachedSkins = new ConcurrentHashMap<>();
     private static Map<UUID, CompletableFuture<Skin>> requestedSkins = new ConcurrentHashMap<>();
 
@@ -58,12 +60,49 @@ public class SkinProvider {
     private static Map<String, Cape> cachedCapes = new ConcurrentHashMap<>();
     private static Map<String, CompletableFuture<Cape>> requestedCapes = new ConcurrentHashMap<>();
 
-    public static final SkinGeometry EMPTY_GEOMETRY = SkinProvider.SkinGeometry.getLegacy("geometry.humanoid");
+    public static final SkinGeometry EMPTY_GEOMETRY = SkinProvider.SkinGeometry.getLegacy(false);
     private static Map<UUID, SkinGeometry> cachedGeometry = new ConcurrentHashMap<>();
 
+    public static final boolean ALLOW_THIRD_PARTY_EARS = GeyserConnector.getInstance().getConfig().isAllowThirdPartyEars();
+    public static String EARS_GEOMETRY;
+    public static String EARS_GEOMETRY_SLIM;
+
     private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
     private static final int CACHE_INTERVAL = 8 * 60 * 1000; // 8 minutes
 
+    static {
+        /* Load in the normal ears geometry */
+        InputStream earsStream = Toolbox.getResource("bedrock/skin/geometry.humanoid.ears.json");
+
+        StringBuilder earsDataBuilder = new StringBuilder();
+        try (Reader reader = new BufferedReader(new InputStreamReader(earsStream, Charset.forName(StandardCharsets.UTF_8.name())))) {
+            int c = 0;
+            while ((c = reader.read()) != -1) {
+                earsDataBuilder.append((char) c);
+            }
+        } catch (IOException e) {
+            throw new AssertionError("Unable to load ears geometry", e);
+        }
+
+        EARS_GEOMETRY = earsDataBuilder.toString();
+
+
+        /* Load in the slim ears geometry */
+        earsStream = Toolbox.getResource("bedrock/skin/geometry.humanoid.earsSlim.json");
+
+        earsDataBuilder = new StringBuilder();
+        try (Reader reader = new BufferedReader(new InputStreamReader(earsStream, Charset.forName(StandardCharsets.UTF_8.name())))) {
+            int c = 0;
+            while ((c = reader.read()) != -1) {
+                earsDataBuilder.append((char) c);
+            }
+        } catch (IOException e) {
+            throw new AssertionError("Unable to load ears geometry", e);
+        }
+
+        EARS_GEOMETRY_SLIM = earsDataBuilder.toString();
+    }
+
     public static boolean hasSkinCached(UUID uuid) {
         return cachedSkins.containsKey(uuid);
     }
@@ -167,6 +206,43 @@ public class SkinProvider {
         return CompletableFuture.completedFuture(officialCape);
     }
 
+    public static CompletableFuture<Skin> requestEars(String earsUrl, EarsProvider provider, boolean newThread, Skin skin) {
+        if (earsUrl == null || earsUrl.isEmpty()) return CompletableFuture.completedFuture(skin);
+
+        CompletableFuture<Skin> future;
+        if (newThread) {
+            future = CompletableFuture.supplyAsync(() -> supplyEars(skin, earsUrl, provider), EXECUTOR_SERVICE)
+                    .whenCompleteAsync((outSkin, throwable) -> { });
+        } else {
+            Skin ears = supplyEars(skin, earsUrl, provider); // blocking
+            future = CompletableFuture.completedFuture(ears);
+        }
+        return future;
+    }
+
+    /**
+     * Try and find an ear texture for a Java player
+     *
+     * @param officialSkin The current players skin
+     * @param playerId The players UUID
+     * @param username The players username
+     * @param newThread Should we start in a new thread
+     * @return The updated skin with ears
+     */
+    public static CompletableFuture<Skin> requestUnofficialEars(Skin officialSkin, UUID playerId, String username, boolean newThread) {
+        for (EarsProvider provider : EarsProvider.VALUES) {
+            Skin skin1 = getOrDefault(
+                    requestEars(provider.getUrlFor(playerId, username), provider, newThread, officialSkin),
+                    officialSkin, 4
+            );
+            if (skin1.isEars()) {
+                return CompletableFuture.completedFuture(skin1);
+            }
+        }
+
+        return CompletableFuture.completedFuture(officialSkin);
+    }
+
     public static CompletableFuture<Cape> requestBedrockCape(UUID playerID, boolean newThread) {
         Cape bedrockCape = cachedCapes.getOrDefault(playerID.toString() + ".Bedrock", EMPTY_CAPE);
         return CompletableFuture.completedFuture(bedrockCape);
@@ -178,7 +254,7 @@ public class SkinProvider {
     }
 
     public static void storeBedrockSkin(UUID playerID, String skinID, byte[] skinData) {
-        Skin skin = new Skin(playerID, skinID, skinData, System.currentTimeMillis(), true);
+        Skin skin = new Skin(playerID, skinID, skinData, System.currentTimeMillis(), true, false);
         cachedSkins.put(playerID, skin);
     }
 
@@ -188,16 +264,36 @@ public class SkinProvider {
     }
 
     public static void storeBedrockGeometry(UUID playerID, byte[] geometryName, byte[] geometryData) {
-        SkinGeometry geometry = new SkinGeometry(new String(geometryName), new String(geometryData));
+        SkinGeometry geometry = new SkinGeometry(new String(geometryName), new String(geometryData), false);
         cachedGeometry.put(playerID, geometry);
     }
 
+    /**
+     * Stores the ajusted skin with the ear texture to the cache
+     *
+     * @param playerID The UUID to cache it against
+     * @param skin The skin to cache
+     */
+    public static void storeEarSkin(UUID playerID, Skin skin) {
+        cachedSkins.put(playerID, skin);
+    }
+
+    /**
+     * Stores the geometry for a Java player with ears
+     *
+     * @param playerID The UUID to cache it against
+     * @param isSlim If the player is using an slim base
+     */
+    public static void storeEarGeometry(UUID playerID, boolean isSlim) {
+        cachedGeometry.put(playerID, SkinGeometry.getEars(isSlim));
+    }
+
     private static Skin supplySkin(UUID uuid, String textureUrl) {
         byte[] skin = EMPTY_SKIN.getSkinData();
         try {
             skin = requestImage(textureUrl, null);
         } catch (Exception ignored) {} // just ignore I guess
-        return new Skin(uuid, textureUrl, skin, System.currentTimeMillis(), false);
+        return new Skin(uuid, textureUrl, skin, System.currentTimeMillis(), false, false);
     }
 
     private static Cape supplyCape(String capeUrl, CapeProvider provider) {
@@ -217,6 +313,48 @@ public class SkinProvider {
         );
     }
 
+    /**
+     * Get the ears texture and place it on the skin from the given URL
+     *
+     * @param existingSkin The players current skin
+     * @param earsUrl The URL to get the ears texture from
+     * @param provider The ears texture provider
+     * @return The updated skin with ears
+     */
+    private static Skin supplyEars(Skin existingSkin, String earsUrl, EarsProvider provider) {
+        try {
+            // Get the ears texture
+            BufferedImage ears = ImageIO.read(new URL(earsUrl));
+            if (ears == null) throw new NullPointerException();
+
+            // Convert the skin data to a BufferedImage
+            int height = (existingSkin.getSkinData().length / 4 / 64);
+            BufferedImage skinImage = imageDataToBufferedImage(existingSkin.getSkinData(), 64, height);
+
+            // Create a new image with the ears texture over it
+            BufferedImage newSkin = new BufferedImage(skinImage.getWidth(), skinImage.getHeight(), BufferedImage.TYPE_INT_ARGB);
+            Graphics2D g = (Graphics2D) newSkin.getGraphics();
+            g.drawImage(skinImage, 0, 0, null);
+            g.drawImage(ears, 24, 0, null);
+
+            // Turn the buffered image back into an array of bytes
+            byte[] data = bufferedImageToImageData(newSkin);
+            skinImage.flush();
+
+            // Create a new skin object with the new infomation
+            return new Skin(
+                    existingSkin.getSkinOwner(),
+                    existingSkin.getTextureUrl(),
+                    data,
+                    System.currentTimeMillis(),
+                    true,
+                    true
+            );
+        } catch (Exception ignored) {} // just ignore I guess
+
+        return existingSkin;
+    }
+
     private static byte[] requestImage(String imageUrl, CapeProvider provider) throws Exception {
         BufferedImage image = downloadImage(imageUrl, provider);
         GeyserConnector.getInstance().getLogger().debug("Downloaded " + imageUrl);
@@ -226,26 +364,16 @@ public class SkinProvider {
             while(image.getWidth() > 64) {
                 image = scale(image);
             }
-            BufferedImage newImage = new BufferedImage(64, 32, BufferedImage.TYPE_INT_RGB);
+            BufferedImage newImage = new BufferedImage(64, 32, BufferedImage.TYPE_INT_ARGB);
             Graphics g = newImage.createGraphics();
             g.drawImage(image, 0, 0, image.getWidth(), image.getHeight(), null);
             g.dispose();
             image = newImage;
         }
 
-        try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream(image.getWidth() * 4 + image.getHeight() * 4)) {
-            for (int y = 0; y < image.getHeight(); y++) {
-                for (int x = 0; x < image.getWidth(); x++) {
-                    int rgba = image.getRGB(x, y);
-                    outputStream.write((rgba >> 16) & 0xFF);
-                    outputStream.write((rgba >> 8) & 0xFF);
-                    outputStream.write(rgba & 0xFF);
-                    outputStream.write((rgba >> 24) & 0xFF);
-                }
-            }
-            image.flush();
-            return outputStream.toByteArray();
-        }
+        byte[] data = bufferedImageToImageData(image);
+        image.flush();
+        return data;
     }
 
     private static BufferedImage downloadImage(String imageUrl, CapeProvider provider) throws IOException {
@@ -267,7 +395,7 @@ public class SkinProvider {
     }
 
     private static BufferedImage scale(BufferedImage bufferedImage) {
-        BufferedImage resized = new BufferedImage(bufferedImage.getWidth() / 2, bufferedImage.getHeight() / 2, BufferedImage.TYPE_INT_RGB);
+        BufferedImage resized = new BufferedImage(bufferedImage.getWidth() / 2, bufferedImage.getHeight() / 2, BufferedImage.TYPE_INT_ARGB);
         Graphics2D g2 = resized.createGraphics();
         g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
         g2.drawImage(bufferedImage, 0, 0, bufferedImage.getWidth() / 2, bufferedImage.getHeight() / 2, null);
@@ -275,6 +403,60 @@ public class SkinProvider {
         return resized;
     }
 
+    /**
+     * Get the RGBA int for a given index in some image data
+     *
+     * @param index Index to get
+     * @param data Image data to find in
+     * @return An int representing RGBA
+     */
+    private static int getRGBA(int index, byte[] data) {
+        return (data[index] & 0xFF) << 16 | (data[index + 1] & 0xFF) << 8 |
+                data[index + 2] & 0xFF | (data[index + 3] & 0xFF) << 24;
+    }
+
+    /**
+     * Convert a byte[] to a BufferedImage
+     *
+     * @param imageData The byte[] to convert
+     * @param imageWidth The width of the target image
+     * @param imageHeight The height of the target image
+     * @return The converted BufferedImage
+     */
+    public static BufferedImage imageDataToBufferedImage(byte[] imageData, int imageWidth, int imageHeight) {
+        BufferedImage image = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_INT_ARGB);
+        int index = 0;
+        for (int y = 0; y < imageHeight; y++) {
+            for (int x = 0; x < imageWidth; x++) {
+                image.setRGB(x, y, getRGBA(index, imageData));
+                index += 4;
+            }
+        }
+
+        return image;
+    }
+
+    /**
+     * Convert a BufferedImage to a byte[]
+     *
+     * @param image The BufferedImage to convert
+     * @return The converted byte[]
+     */
+    public static byte[] bufferedImageToImageData(BufferedImage image) {
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream(image.getWidth() * 4 + image.getHeight() * 4);
+        for (int y = 0; y < image.getHeight(); y++) {
+            for (int x = 0; x < image.getWidth(); x++) {
+                int rgba = image.getRGB(x, y);
+                outputStream.write((rgba >> 16) & 0xFF);
+                outputStream.write((rgba >> 8) & 0xFF);
+                outputStream.write(rgba & 0xFF);
+                outputStream.write((rgba >> 24) & 0xFF);
+            }
+        }
+
+        return outputStream.toByteArray();
+    }
+
     public static <T> T getOrDefault(CompletableFuture<T> future, T defaultValue, int timeoutInSeconds) {
         try {
             return future.get(timeoutInSeconds, TimeUnit.SECONDS);
@@ -297,6 +479,7 @@ public class SkinProvider {
         private byte[] skinData;
         private long requestedOn;
         private boolean updated;
+        private boolean ears;
 
         private Skin(long requestedOn, String textureUrl, byte[] skinData) {
             this.requestedOn = requestedOn;
@@ -320,9 +503,26 @@ public class SkinProvider {
     public static class SkinGeometry {
         private String geometryName;
         private String geometryData;
+        private boolean failed;
 
-        public static SkinGeometry getLegacy(String name) {
-            return new SkinProvider.SkinGeometry("{\"geometry\" :{\"default\" :\"" + name + "\"}}", "");
+        /**
+         * Generate generic geometry
+         *
+         * @param isSlim Should it be the alex model
+         * @return The generic geometry object
+         */
+        public static SkinGeometry getLegacy(boolean isSlim) {
+            return new SkinProvider.SkinGeometry("{\"geometry\" :{\"default\" :\"geometry.humanoid.custom" + (isSlim ? "Slim" : "") + "\"}}", "", true);
+        }
+
+        /**
+         * Generate basic geometry with ears
+         *
+         * @param isSlim Should it be the alex model
+         * @return The generated geometry for the ears model
+         */
+        public static SkinGeometry getEars(boolean isSlim) {
+            return new SkinProvider.SkinGeometry("{\"geometry\" :{\"default\" :\"geometry.humanoid.ears" + (isSlim ? "Slim" : "") + "\"}}", (isSlim ? EARS_GEOMETRY_SLIM : EARS_GEOMETRY), false);
         }
     }
 
@@ -365,4 +565,34 @@ public class SkinProvider {
         UUID,
         UUID_DASHED
     }
+
+    /*
+     * Sorted by 'priority'
+     */
+    @AllArgsConstructor
+    @NoArgsConstructor
+    @Getter
+    public enum EarsProvider {
+        MINECRAFTCAPES("https://www.minecraftcapes.co.uk/getEars/%s", CapeUrlType.UUID);
+
+        public static final EarsProvider[] VALUES = values();
+        private String url;
+        private CapeUrlType type;
+
+        public String getUrlFor(String type) {
+            return String.format(url, type);
+        }
+
+        public String getUrlFor(UUID uuid, String username) {
+            return getUrlFor(toRequestedType(type, uuid, username));
+        }
+
+        public static String toRequestedType(CapeUrlType type, UUID uuid, String username) {
+            switch (type) {
+                case UUID: return uuid.toString().replace("-", "");
+                case UUID_DASHED: return uuid.toString();
+                default: return username;
+            }
+        }
+    }
 }

connector/src/main/java/org/geysermc/connector/utils/SkinUtils.java

@@ -53,7 +53,7 @@ public class SkinUtils {
         GameProfileData data = GameProfileData.from(profile);
         SkinProvider.Cape cape = SkinProvider.getCachedCape(data.getCapeUrl());
 
-        SkinProvider.SkinGeometry geometry = SkinProvider.SkinGeometry.getLegacy("geometry.humanoid.custom" + (data.isAlex() ? "Slim" : ""));
+        SkinProvider.SkinGeometry geometry = SkinProvider.SkinGeometry.getLegacy(data.isAlex());
 
         return buildEntryManually(
                 profile.getId(),
@@ -88,7 +88,7 @@ public class SkinUtils {
                                                             String geometryName, String geometryData) {
         SerializedSkin serializedSkin = SerializedSkin.of(
                 skinId, geometryName, ImageData.of(skinData), Collections.emptyList(),
-                ImageData.of(capeData), geometryData, "", true, false, false, capeId, uuid.toString()
+                ImageData.of(capeData), geometryData, "", true, false, !capeId.equals(SkinProvider.EMPTY_CAPE.getCapeId()), capeId, uuid.toString()
         );
 
         PlayerListPacket.Entry entry = new PlayerListPacket.Entry(uuid);
@@ -115,6 +115,9 @@ public class SkinUtils {
          * @return The built GameProfileData
          */
         public static GameProfileData from(GameProfile profile) {
+            // Fallback to the offline mode of working it out
+            boolean isAlex = ((profile.getId().hashCode() % 2) == 1);
+
             try {
                 GameProfile.Property skinProperty = profile.getProperty("textures");
 
@@ -124,7 +127,7 @@ public class SkinUtils {
                 JsonNode skinTexture = textures.get("SKIN");
                 String skinUrl = skinTexture.get("url").asText();
 
-                boolean isAlex = skinTexture.has("metadata");
+                isAlex = skinTexture.has("metadata");
 
                 String capeUrl = null;
                 if (textures.has("CAPE")) {
@@ -138,7 +141,7 @@ public class SkinUtils {
                     GeyserConnector.getInstance().getLogger().debug("Got invalid texture data for " + profile.getName() + " " + exception.getMessage());
                 }
                 // return default skin with default cape when texture data is invalid
-                return new GameProfileData(SkinProvider.EMPTY_SKIN.getTextureUrl(), SkinProvider.EMPTY_CAPE.getTextureUrl(), false);
+                return new GameProfileData((isAlex ? SkinProvider.EMPTY_SKIN_ALEX.getTextureUrl() : SkinProvider.EMPTY_SKIN.getTextureUrl()), SkinProvider.EMPTY_CAPE.getTextureUrl(), isAlex);
             }
         }
     }
@@ -167,11 +170,38 @@ public class SkinUtils {
                                 ), SkinProvider.EMPTY_CAPE, SkinProvider.CapeProvider.VALUES.length * 3);
                             }
 
-                            SkinProvider.SkinGeometry geometry = SkinProvider.SkinGeometry.getLegacy("geometry.humanoid.custom" + (data.isAlex() ? "Slim" : ""));
+                            SkinProvider.SkinGeometry geometry = SkinProvider.SkinGeometry.getLegacy(data.isAlex());
                             geometry = SkinProvider.getOrDefault(SkinProvider.requestBedrockGeometry(
                                     geometry, entity.getUuid(), false
                             ), geometry, 3);
 
+                            // Not a bedrock player check for ears
+                            if (geometry.isFailed() && SkinProvider.ALLOW_THIRD_PARTY_EARS) {
+                                boolean isEars = false;
+
+                                // Its deadmau5, gotta support his skin :)
+                                if (entity.getUuid().toString().equals("1e18d5ff-643d-45c8-b509-43b8461d8614")) {
+                                    isEars = true;
+                                } else {
+                                    // Get the ears texture for the player
+                                    skin = SkinProvider.getOrDefault(SkinProvider.requestUnofficialEars(
+                                            skin, entity.getUuid(), entity.getUsername(), false
+                                    ), skin, 3);
+
+                                    isEars = skin.isEars();
+                                }
+
+                                // Does the skin have an ears texture
+                                if (isEars) {
+                                    // Get the new geometry
+                                    geometry = SkinProvider.SkinGeometry.getEars(data.isAlex());
+
+                                    // Store the skin and geometry for the ears
+                                    SkinProvider.storeEarSkin(entity.getUuid(), skin);
+                                    SkinProvider.storeEarGeometry(entity.getUuid(), data.isAlex());
+                                }
+                            }
+
                             if (entity.getLastSkinUpdate() < skin.getRequestedOn()) {
                                 entity.setLastSkinUpdate(skin.getRequestedOn());
 
@@ -197,6 +227,10 @@ public class SkinUtils {
                                     playerAddPacket.setAction(PlayerListPacket.Action.ADD);
                                     playerAddPacket.getEntries().add(updatedEntry);
                                     session.sendUpstreamPacket(playerAddPacket);
+
+                                    if(entity.getUuid().equals(session.getPlayerEntity().getUuid())) {
+                                        session.fetchOurSkin(updatedEntry);
+                                    }
                                 }
                             }
                         } catch (Exception e) {
@@ -217,8 +251,8 @@ public class SkinUtils {
             byte[] skinBytes = com.github.steveice10.mc.auth.util.Base64.decode(clientData.getSkinData().getBytes("UTF-8"));
             byte[] capeBytes = clientData.getCapeData();
 
-            byte[] geometryNameBytes = com.github.steveice10.mc.auth.util.Base64.decode(clientData.getGeometryName().getBytes("UTF-8"));
-            byte[] geometryBytes = com.github.steveice10.mc.auth.util.Base64.decode(clientData.getGeometryData().getBytes("UTF-8"));
+            byte[] geometryNameBytes = Base64.getDecoder().decode(clientData.getGeometryName().getBytes("UTF-8"));
+            byte[] geometryBytes = Base64.getDecoder().decode(clientData.getGeometryData().getBytes("UTF-8"));
 
             if (skinBytes.length <= (128 * 128 * 4) && !clientData.isPersonaSkin()) {
                 SkinProvider.storeBedrockSkin(playerEntity.getUuid(), data.getSkinUrl(), skinBytes);
@@ -235,14 +269,4 @@ public class SkinUtils {
             throw new AssertionError("Failed to cache skin for bedrock user (" + playerEntity.getUsername() + "): ", e);
         }
     }
-
-    /**
-     * Create a basic geometry json for the given name
-     *
-     * @param geometryName Geometry name to use
-     * @return Geometry data as a json string
-     */
-    private static String getLegacySkinGeometry(String geometryName) {
-        return "{\"geometry\" :{\"default\" :\"" + geometryName + "\"}}";
-    }
 }

connector/src/main/resources/bedrock/skin/geometry.humanoid.ears.json

@@ -0,0 +1,249 @@
+{
+    "format_version": "1.14.0",
+    "minecraft:geometry": [
+        {
+            "bones": [
+                {
+                    "name" : "root",
+                    "pivot" : [ 0.0, 0.0, 0.0 ]
+                },
+
+                {
+                    "name" : "waist",
+                    "parent" : "root",
+                    "pivot" : [ 0.0, 12.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes" : []
+                },
+
+
+                {
+                    "name": "body",
+                    "parent" : "waist",
+                    "pivot": [ 0.0, 24.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -4.0, 12.0, -2.0 ],
+                            "size": [ 8, 12, 4 ],
+                            "uv": [ 16, 16 ]
+                        }
+                    ]
+                },
+
+                {
+                    "name": "jacket",
+                    "parent" : "body",
+                    "pivot": [ 0.0, 24.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -4.0, 12.0, -2.0 ],
+                            "size": [ 8, 12, 4 ],
+                            "uv": [ 16, 32 ],
+                            "inflate": 0.25
+                        }
+                    ]
+                },
+
+
+                {
+                    "name": "head",
+                    "parent" : "body",
+                    "pivot": [ 0.0, 24.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -4.0, 24.0, -4.0 ],
+                            "size": [ 8, 8, 8 ],
+                            "uv": [ 0, 0 ]
+                        }
+                    ]
+                },
+
+                {
+                    "name": "hat",
+                    "parent" : "head",
+                    "pivot": [ 0.0, 24.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -4.0, 24.0, -4.0 ],
+                            "size": [ 8, 8, 8 ],
+                            "uv": [ 32, 0 ],
+                            "inflate": 0.5
+                        }
+                    ]
+                },
+
+
+                {
+                    "name": "leftArm",
+                    "parent" : "body",
+                    "pivot": [ 5.0, 22.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ 4.0, 12.0, -2.0 ],
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 32, 48 ]
+                        }
+                    ]
+                },
+                {
+                    "name": "rightArm",
+                    "parent" : "body",
+                    "pivot": [ -5.0, 22.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -8.0, 12.0, -2.0 ],
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 40, 16 ]
+                        }
+                    ]
+                },
+
+                {
+                    "name": "leftSleeve",
+                    "parent" : "leftArm",
+                    "pivot": [ 5.0, 22.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ 4.0, 12.0, -2.0 ],
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 48, 48 ],
+                            "inflate": 0.25
+                        }
+                    ]
+                },
+
+                {
+                    "name": "rightSleeve",
+                    "parent" : "rightArm",
+                    "pivot": [ -5.0, 22.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -8.0, 12.0, -2.0 ],
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 40, 32 ],
+                            "inflate": 0.25
+                        }
+                    ]
+                },
+
+
+                {
+                    "name": "leftLeg",
+                    "parent" : "root",
+                    "pivot": [ 1.9, 12.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -0.1, 0.0, -2.0 ],
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 0, 16 ]
+                        }
+                    ]
+                },
+
+                {
+                    "name": "rightLeg",
+                    "parent" : "root",
+                    "pivot": [ -1.9, 12.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -3.9, 0.0, -2.0 ],
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 0, 16 ]
+                        }
+                    ]
+                },
+
+                {
+                    "name": "leftPants",
+                    "parent" : "leftLeg",
+                    "pivot": [1.9, 12.0, 0.0],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -0.1, 0.0, -2.0 ],
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 0, 48 ],
+                            "inflate": 0.25
+                        }
+                    ]
+                },
+
+                {
+                    "name": "rightPants",
+                    "parent" : "rightLeg",
+                    "pivot": [ -1.9, 12.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -3.9, 0.0, -2.0] ,
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 0, 32],
+                            "inflate": 0.25
+                        }
+                    ]
+                },
+
+
+                {
+                    "name" : "rightItem",
+                    "parent" : "rightArm",
+                    "pivot" : [ -6.0, 15.0, 1.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes" : []
+                },
+
+                {
+                    "name" : "leftItem",
+                    "parent" : "leftArm",
+                    "pivot" : [ 6.0, 15.0, 1.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes" : []
+                },
+
+
+                {
+                    "name": "leftEar",
+                    "parent" : "head",
+                    "pivot": [ -1.9, 12.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ 3.0, 31.0, -0.5 ],
+                            "size": [ 6, 6, 1 ],
+                            "uv": [ 24, 0 ],
+                            "inflate": 0.5
+                        }
+                    ]
+                },
+
+                {
+                    "name": "rightEar",
+                    "parent" : "head",
+                    "pivot": [ -1.9, 12.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -9.0, 31.0, -0.5 ],
+                            "size": [ 6, 6, 1 ],
+                            "uv": [ 24, 0 ],
+                            "inflate": 0.5
+                        }
+                    ]
+                }
+            ],
+            "description": {
+                "identifier": "geometry.humanoid.ears",
+                "texture_height": 64,
+                "texture_width": 64
+            }
+        }
+    ]
+}

connector/src/main/resources/bedrock/skin/geometry.humanoid.earsSlim.json

@@ -0,0 +1,249 @@
+{
+    "format_version": "1.14.0",
+    "minecraft:geometry": [
+        {
+            "bones": [
+                {
+                    "name" : "root",
+                    "pivot" : [ 0.0, 0.0, 0.0 ]
+                },
+    
+                {
+                    "name" : "waist",
+                    "parent" : "root",
+                    "pivot" : [ 0.0, 12.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes" : []
+                },
+    
+
+                {
+                    "name": "body",
+                    "parent" : "waist",
+                    "pivot": [ 0.0, 24.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -4.0, 12.0, -2.0 ],
+                            "size": [ 8, 12, 4 ],
+                            "uv": [ 16, 16 ]
+                        }
+                    ]
+                },
+    
+                {
+                    "name": "jacket",
+                    "parent" : "body",
+                    "pivot": [ 0.0, 24.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -4.0, 12.0, -2.0 ],
+                            "size": [ 8, 12, 4 ],
+                            "uv": [ 16, 32 ],
+                            "inflate": 0.25
+                        }
+                    ]
+                },
+    
+    
+                {
+                    "name": "head",
+                    "parent" : "body",
+                    "pivot": [ 0.0, 24.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -4.0, 24.0, -4.0 ],
+                            "size": [ 8, 8, 8 ],
+                            "uv": [ 0, 0 ]
+                        }
+                    ]
+                },
+    
+                {
+                    "name": "hat",
+                    "parent" : "head",
+                    "pivot": [ 0.0, 24.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -4.0, 24.0, -4.0 ],
+                            "size": [ 8, 8, 8 ],
+                            "uv": [ 32, 0 ],
+                            "inflate": 0.5
+                        }
+                    ]
+                },
+    
+    
+                {
+                    "name": "leftArm",
+                    "parent" : "body",
+                    "pivot": [ 5.0, 21.5, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ 4.0, 12, -2.0 ],
+                            "size": [ 3, 12, 4 ],
+                            "uv": [ 32, 48 ]
+                        }
+                    ]
+                },
+                {
+                    "name": "rightArm",
+                    "parent" : "body",
+                    "pivot": [ -5.0, 21.5, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -7.0, 12, -2.0 ],
+                            "size": [ 3, 12, 4 ],
+                            "uv": [ 40, 16 ]
+                        }
+                    ]
+                },
+    
+                {
+                    "name": "leftSleeve",
+                    "parent" : "leftArm",
+                    "pivot": [ 5.0, 21.5, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ 4.0, 11.5, -2.0 ],
+                            "size": [ 3, 12, 4 ],
+                            "uv": [ 48, 48 ],
+                            "inflate": 0.25
+                        }
+                    ]
+                },
+    
+                {
+                    "name": "rightSleeve",
+                    "parent" : "rightArm",
+                    "pivot": [ -5.0, 21.5, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -7.0, 11.5, -2.0 ],
+                            "size": [ 3, 12, 4 ],
+                            "uv": [ 40, 32 ],
+                            "inflate": 0.25
+                        }
+                    ]
+                },
+    
+    
+                {
+                    "name": "leftLeg",
+                    "parent" : "root",
+                    "pivot": [ 1.9, 12.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -0.1, 0.0, -2.0 ],
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 0, 16 ]
+                        }
+                    ]
+                },
+    
+                {
+                    "name": "rightLeg",
+                    "parent" : "root",
+                    "pivot": [ -1.9, 12.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -3.9, 0.0, -2.0 ],
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 0, 16 ]
+                        }
+                    ]
+                },
+    
+                {
+                    "name": "leftPants",
+                    "parent" : "leftLeg",
+                    "pivot": [1.9, 12.0, 0.0],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -0.1, 0.0, -2.0 ],
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 0, 48 ],
+                            "inflate": 0.25
+                        }
+                    ]
+                },
+    
+                {
+                    "name": "rightPants",
+                    "parent" : "rightLeg",
+                    "pivot": [ -1.9, 12.0, 0.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -3.9, 0.0, -2.0] ,
+                            "size": [ 4, 12, 4 ],
+                            "uv": [ 0, 32],
+                            "inflate": 0.25
+                        }
+                    ]
+                },
+
+
+                {
+                    "name" : "rightItem",
+                    "parent" : "rightArm",
+                    "pivot" : [ -6.0, 15.0, 1.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes" : []
+                },
+
+                {
+                    "name" : "leftItem",
+                    "parent" : "leftArm",
+                    "pivot" : [ 6.0, 15.0, 1.0 ],
+                    "rotation" : [ 0.0, 0.0, 0.0 ],
+                    "cubes" : []
+                },
+
+    
+                {
+                    "name": "leftEar",
+                    "parent" : "head",
+                    "pivot": [ -1.9, 12.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ 3.0, 31.0, -0.5 ],
+                            "size": [ 6, 6, 1 ],
+                            "uv": [ 24, 0 ],
+                            "inflate": 0.5
+                        }
+                    ]
+                },
+    
+                {
+                    "name": "rightEar",
+                    "parent" : "head",
+                    "pivot": [ -1.9, 12.0, 0.0 ],
+                    "cubes": [
+                        {
+                            "origin": [ -9.0, 31.0, -0.5 ],
+                            "size": [ 6, 6, 1 ],
+                            "uv": [ 24, 0 ],
+                            "inflate": 0.5
+                        }
+                    ]
+                }
+            ],
+            "description": {
+                "identifier": "geometry.humanoid.earsSlim",
+                "texture_height": 64,
+                "texture_width": 64
+            }
+        }
+    ]
+}

connector/src/main/resources/config.yml

@@ -61,6 +61,10 @@ general-thread-pool: 32
 # OptiFine capes, LabyMod capes, 5Zig capes and MinecraftCapes
 allow-third-party-capes: true
 
+# Allow third party deadmau5 ears to be visible. Currently allowing:
+# MinecraftCapes
+allow-third-party-ears: false
+
 # The default locale if we dont have the one the client requested
 default-locale: en_us