Merge branch '1.21-multiloader' into 1.20.5-multiloader

# Conflicts:
#	gradle.properties

CHANGELOG.md

@@ -4,6 +4,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.5.0] - 2026-01-14
+### Added
+- Added collection skin provider (allows assigning random skins from a predefined set)
+- Added `forceFirstJoinSkinFetch` config option to force skin fetch on first join even if player already has a skin
+
+## [2.4.3] - 2025-07-25
+### Fixed
+- Fixed crash on client when loading player head skin (fixes [#63](https://github.com/Suiranoil/SkinRestorer/issues/63) and [#64](https://github.com/Suiranoil/SkinRestorer/issues/64))
+- Fixed server freeze when loading player head skin
+
 ## [2.4.2] - 2025-07-13
 ### Fixed
 - Fix crash when head profile name is null (fixes [#60](https://github.com/Suiranoil/SkinRestorer/issues/60) and [#61](https://github.com/Suiranoil/SkinRestorer/issues/61))

CHANGELOG_LATEST.md

@@ -1,2 +1,3 @@
-### Fixed
-- Fix crash when head profile name is null (fixes [#60](https://github.com/Suiranoil/SkinRestorer/issues/60) and [#61](https://github.com/Suiranoil/SkinRestorer/issues/61))
+### Added
+- Added collection skin provider (allows assigning random skins from a predefined set) (see [wiki](https://github.com/Suiranoil/SkinRestorer/wiki/Configuration#providerscollection))
+- Added `forceFirstJoinSkinFetch` config option to force skin fetch on first join even if player already has a skin (see [wiki](https://github.com/Suiranoil/SkinRestorer/wiki/Configuration#forcefirstjoinskinfetch))

buildSrc/src/main/groovy/multiloader-publish.gradle

@@ -6,6 +6,14 @@ publishMods {
     file = project.layout.buildDirectory.file("libs/${project.archivesBaseName}-${project.version}.jar").map { it.asFile }.getOrNull()
 
     modLoaders.add(project.name)
+
+    if (project.hasProperty('additional_modloaders') && !additional_modloaders.isEmpty())
+    {
+        def loaders = additional_modloaders.split(',')
+        for (loader in loaders)
+            modLoaders.add(loader)
+    }
+    
     type = STABLE
     version = project.version
     displayName = "[${project.name.capitalize()}] ${mod_name} ${mod_version}"

common/src/main/java/net/lionarius/skinrestorer/SkinRestorer.java

@@ -19,6 +19,7 @@ import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.level.storage.LevelResource;
+import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -37,6 +38,7 @@ public final class SkinRestorer {
     private static Path configDir;
     private static Config config;
     private static TickedScheduler tickedScheduler;
+    private static MinecraftServer minecraftServer;
     
     private SkinRestorer() {}
     
@@ -60,6 +62,10 @@ public final class SkinRestorer {
         return SkinRestorer.tickedScheduler;
     }
     
+    public static @Nullable MinecraftServer getMinecraftServer() {
+        return SkinRestorer.minecraftServer;
+    }
+    
     public static Optional<SkinProvider> getProvider(String name) {
         return Optional.ofNullable(SkinRestorer.providersRegistry.get(name));
     }
@@ -82,6 +88,7 @@ public final class SkinRestorer {
         SkinRestorer.registerDefaultSkinProvider(MojangSkinProvider.PROVIDER_NAME, SkinProvider.MOJANG, SkinRestorer.getConfig().providersConfig().mojang());
         SkinRestorer.registerDefaultSkinProvider(ElyBySkinProvider.PROVIDER_NAME, SkinProvider.ELY_BY, SkinRestorer.getConfig().providersConfig().ely_by());
         SkinRestorer.registerDefaultSkinProvider(MineskinSkinProvider.PROVIDER_NAME, SkinProvider.MINESKIN, SkinRestorer.getConfig().providersConfig().mineskin());
+        SkinRestorer.registerDefaultSkinProvider(CollectionSkinProvider.PROVIDER_NAME, SkinProvider.COLLECTION, SkinRestorer.getConfig().providersConfig().collection());
     }
     
     private static void registerDefaultSkinProvider(String defaultName, SkinProvider provider, BuiltInProviderConfig config) {
@@ -100,6 +107,7 @@ public final class SkinRestorer {
         MojangSkinProvider.reload();
         ElyBySkinProvider.reload();
         MineskinSkinProvider.reload();
+        CollectionSkinProvider.reload();
     }
     
     public static Collection<ServerPlayer> applySkin(MinecraftServer server, Iterable<GameProfile> targets, SkinValue value, boolean save) {
@@ -173,6 +181,14 @@ public final class SkinRestorer {
             SkinRestorer.skinStorage = new SkinStorage(new SkinIO(worldSkinDirectory));
             SkinRestorer.tickedScheduler = new TickedScheduler(server);
             server.addTickable(SkinRestorer.tickedScheduler);
+            
+            SkinRestorer.minecraftServer = server;
+        }
+        
+        public static void onServerStopped(MinecraftServer server) {
+            SkinRestorer.skinStorage = null;
+            SkinRestorer.tickedScheduler = null;
+            SkinRestorer.minecraftServer = null;
         }
         
         public static void onCommandRegister(CommandDispatcher<CommandSourceStack> dispatcher) {

common/src/main/java/net/lionarius/skinrestorer/config/Config.java

@@ -22,6 +22,8 @@ public final class Config implements GsonPostProcessable {
     
     private boolean fetchSkinOnFirstJoin = true;
     
+    private boolean forceFirstJoinSkinFetch = false;
+    
     private FirstJoinSkinProvider firstJoinSkinProvider = FirstJoinSkinProvider.MOJANG;
     
     private String proxy = "";
@@ -47,6 +49,10 @@ public final class Config implements GsonPostProcessable {
         return this.fetchSkinOnFirstJoin;
     }
     
+    public boolean forceFirstJoinSkinFetch() {
+        return this.forceFirstJoinSkinFetch;
+    }
+    
     public FirstJoinSkinProvider firstJoinSkinProvider() {
         return this.firstJoinSkinProvider;
     }

common/src/main/java/net/lionarius/skinrestorer/config/FirstJoinSkinProvider.java

@@ -1,6 +1,7 @@
 package net.lionarius.skinrestorer.config;
 
 import com.google.gson.annotations.SerializedName;
+import net.lionarius.skinrestorer.skin.provider.CollectionSkinProvider;
 import net.lionarius.skinrestorer.skin.provider.ElyBySkinProvider;
 import net.lionarius.skinrestorer.skin.provider.MojangSkinProvider;
 
@@ -8,7 +9,9 @@ public enum FirstJoinSkinProvider {
     @SerializedName(value = "MOJANG", alternate = {"mojang"})
     MOJANG(MojangSkinProvider.PROVIDER_NAME),
     @SerializedName(value = "ELY.BY", alternate = {"ely.by", "ELY_BY", "ely_by"})
-    ELY_BY(ElyBySkinProvider.PROVIDER_NAME);
+    ELY_BY(ElyBySkinProvider.PROVIDER_NAME),
+    @SerializedName(value = "COLLECTION", alternate = {"collection"})
+    COLLECTION(CollectionSkinProvider.PROVIDER_NAME);
     
     private final String name;
     

common/src/main/java/net/lionarius/skinrestorer/config/provider/BuiltInProviderConfig.java

@@ -8,8 +8,13 @@ public abstract class BuiltInProviderConfig implements GsonPostProcessable {
     protected String name;
     protected CacheConfig cache;
     
+    
     public BuiltInProviderConfig(String name, CacheConfig cache) {
-        this.enabled = true;
+        this(name, cache, true);
+    }
+    
+    public BuiltInProviderConfig(String name, CacheConfig cache, boolean enabled) {
+        this.enabled = enabled;
         this.name = name;
         this.cache = cache;
     }

common/src/main/java/net/lionarius/skinrestorer/config/provider/ProvidersConfig.java

@@ -1,23 +1,27 @@
 package net.lionarius.skinrestorer.config.provider;
 
 import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.config.provider.collection.CollectionProviderConfig;
 import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
 
 public final class ProvidersConfig implements GsonPostProcessable {
     public static final ProvidersConfig DEFAULT = new ProvidersConfig(
             new MojangProviderConfig(),
             new ElyByProviderConfig(),
-            new MineskinProviderConfig()
+            new MineskinProviderConfig(),
+            new CollectionProviderConfig()
     );
     
     private MojangProviderConfig mojang;
     private ElyByProviderConfig ely_by;
     private MineskinProviderConfig mineskin;
+    private CollectionProviderConfig collection;
     
-    public ProvidersConfig(MojangProviderConfig mojang, ElyByProviderConfig ely_by, MineskinProviderConfig mineskin) {
+    public ProvidersConfig(MojangProviderConfig mojang, ElyByProviderConfig ely_by, MineskinProviderConfig mineskin, CollectionProviderConfig collection) {
         this.mojang = mojang;
         this.ely_by = ely_by;
         this.mineskin = mineskin;
+        this.collection = collection;
     }
     
     public MojangProviderConfig mojang() {
@@ -32,6 +36,10 @@ public final class ProvidersConfig implements GsonPostProcessable {
         return this.mineskin;
     }
     
+    public CollectionProviderConfig collection() {
+        return this.collection;
+    }
+    
     @Override
     public void gsonPostProcess() {
         if (this.mojang == null) {
@@ -48,5 +56,10 @@ public final class ProvidersConfig implements GsonPostProcessable {
             SkinRestorer.LOGGER.warn("Mineskin provider config is null, using default");
             this.mineskin = ProvidersConfig.DEFAULT.mineskin();
         }
+        
+        if (this.collection == null) {
+            SkinRestorer.LOGGER.warn("Collection provider config is null, using default");
+            this.collection = ProvidersConfig.DEFAULT.collection();
+        }
     }
 }

common/src/main/java/net/lionarius/skinrestorer/config/provider/collection/CollectionProviderConfig.java

@@ -0,0 +1,32 @@
+package net.lionarius.skinrestorer.config.provider.collection;
+
+import com.google.gson.annotations.JsonAdapter;
+import net.lionarius.skinrestorer.config.provider.BuiltInProviderConfig;
+import net.lionarius.skinrestorer.config.provider.CacheConfig;
+import net.lionarius.skinrestorer.skin.provider.CollectionSkinProvider;
+import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public final class CollectionProviderConfig extends BuiltInProviderConfig implements GsonPostProcessable {
+    private static final CacheConfig DEFAULT_CACHE_VALUE = new CacheConfig(true, 604800);
+    
+    @JsonAdapter(CollectionSkinSourceListDeserializer.class)
+    private List<CollectionSkinSource> sources = new ArrayList<>();
+    
+    public CollectionProviderConfig() {
+        super(CollectionSkinProvider.PROVIDER_NAME, DEFAULT_CACHE_VALUE, false);
+    }
+    
+    public List<CollectionSkinSource> sources() {
+        return this.sources;
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        if (this.sources == null) {
+            this.sources = new ArrayList<>();
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/collection/CollectionSkinFile.java

@@ -0,0 +1,60 @@
+package net.lionarius.skinrestorer.config.provider.collection;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
+import org.jetbrains.annotations.Nullable;
+
+import java.net.URI;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+public final class CollectionSkinFile implements CollectionSkinSource, GsonPostProcessable {
+    private String path = "";
+    private SkinVariant variant = SkinVariant.CLASSIC;
+    
+    @Override
+    public @Nullable URI uri() {
+        if (this.path.isEmpty())
+            return null;
+        
+        try {
+            var filePath = SkinRestorer.getConfigDir().resolve(this.path);
+            
+            if (!Files.exists(filePath)) {
+                SkinRestorer.LOGGER.warn("Skin file does not exist: {}", this.path);
+                return null;
+            }
+            
+            if (!Files.isRegularFile(filePath)) {
+                SkinRestorer.LOGGER.warn("Skin path is not a file: {}", this.path);
+                return null;
+            }
+            
+            if (!this.path.toLowerCase().endsWith(".png")) {
+                SkinRestorer.LOGGER.warn("Skin file is not a PNG file: {}", this.path);
+                return null;
+            }
+            
+            return filePath.toUri();
+        } catch (Exception e) {
+            SkinRestorer.LOGGER.warn("Invalid file path: {}", this.path, e);
+            return null;
+        }
+    }
+    
+    @Override
+    public SkinVariant variant() {
+        return this.variant;
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        if (this.path == null) {
+            this.path = "";
+        }
+        if (this.variant == null) {
+            this.variant = SkinVariant.CLASSIC;
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/collection/CollectionSkinSource.java

@@ -0,0 +1,12 @@
+package net.lionarius.skinrestorer.config.provider.collection;
+
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import org.jetbrains.annotations.Nullable;
+
+import java.net.URI;
+
+public interface CollectionSkinSource {
+    @Nullable URI uri();
+    
+    SkinVariant variant();
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/collection/CollectionSkinSourceListDeserializer.java

@@ -0,0 +1,35 @@
+package net.lionarius.skinrestorer.config.provider.collection;
+
+import com.google.gson.*;
+
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
+
+public class CollectionSkinSourceListDeserializer implements JsonSerializer<List<CollectionSkinSource>>, JsonDeserializer<List<CollectionSkinSource>> {
+    @Override
+    public JsonElement serialize(List<CollectionSkinSource> src, Type typeOfT, JsonSerializationContext context) {
+        return context.serialize(src, List.class);
+    }
+    
+    @Override
+    public List<CollectionSkinSource> deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
+            throws JsonParseException {
+        List<CollectionSkinSource> sources = new ArrayList<>();
+        
+        if (json.isJsonArray()) {
+            for (JsonElement element : json.getAsJsonArray()) {
+                if (element.isJsonObject()) {
+                    JsonObject obj = element.getAsJsonObject();
+                    if (obj.has("url")) {
+                        sources.add(context.deserialize(obj, CollectionSkinUrl.class));
+                    } else if (obj.has("path")) {
+                        sources.add(context.deserialize(obj, CollectionSkinFile.class));
+                    }
+                }
+            }
+        }
+        
+        return sources;
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/collection/CollectionSkinUrl.java

@@ -0,0 +1,41 @@
+package net.lionarius.skinrestorer.config.provider.collection;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
+import org.jetbrains.annotations.Nullable;
+
+import java.net.URI;
+
+public final class CollectionSkinUrl implements CollectionSkinSource, GsonPostProcessable {
+    private String url = "";
+    private SkinVariant variant = SkinVariant.CLASSIC;
+    
+    @Override
+    public @Nullable URI uri() {
+        try {
+            if (this.url.isEmpty())
+                return null;
+            
+            return new URI(this.url);
+        } catch (Exception e) {
+            SkinRestorer.LOGGER.warn("Invalid URI: {}", this.url, e);
+            return null;
+        }
+    }
+    
+    @Override
+    public SkinVariant variant() {
+        return this.variant;
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        if (this.url == null) {
+            this.url = "";
+        }
+        if (this.variant == null) {
+            this.variant = SkinVariant.CLASSIC;
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/mixin/ChunkMapAccessor.java

@@ -9,5 +9,5 @@ import org.spongepowered.asm.mixin.gen.Accessor;
 public interface ChunkMapAccessor {
     
     @Accessor
-    Int2ObjectMap<Object> getEntityMap();
+    Int2ObjectMap<TrackedEntityAccessorInvoker> getEntityMap();
 }

common/src/main/java/net/lionarius/skinrestorer/mixin/GameProfileCacheAccessor.java

@@ -0,0 +1,14 @@
+package net.lionarius.skinrestorer.mixin;
+
+import net.minecraft.server.players.GameProfileCache;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+import java.util.Map;
+
+@Mixin(GameProfileCache.class)
+public interface GameProfileCacheAccessor {
+    
+    @Accessor
+    Map<String, GameProfileCache.GameProfileInfo> getProfilesByName();
+}

common/src/main/java/net/lionarius/skinrestorer/mixin/ServerLoginPacketListenerImplMixin.java

@@ -2,6 +2,7 @@ package net.lionarius.skinrestorer.mixin;
 
 import com.mojang.authlib.GameProfile;
 import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.config.FirstJoinSkinProvider;
 import net.lionarius.skinrestorer.skin.SkinValue;
 import net.lionarius.skinrestorer.skin.provider.SkinProviderContext;
 import net.lionarius.skinrestorer.util.PlayerUtils;
@@ -53,9 +54,15 @@ public abstract class ServerLoginPacketListenerImplMixin {
                     return null;
                 }
                 
-                if (originalSkin == null && SkinRestorer.getConfig().fetchSkinOnFirstJoin()) {
+                var config = SkinRestorer.getConfig();
+                var provider = config.firstJoinSkinProvider();
+                
+                var shouldFetch = (originalSkin == null && config.fetchSkinOnFirstJoin()) ||
+                                      (originalSkin != null && config.forceFirstJoinSkinFetch() && provider != FirstJoinSkinProvider.MOJANG);
+                
+                if (shouldFetch) {
                     var context = new SkinProviderContext(
-                            SkinRestorer.getConfig().firstJoinSkinProvider().getName(),
+                            provider.getName(),
                             profile.getName(),
                             null
                     );

common/src/main/java/net/lionarius/skinrestorer/mixin/SkullBlockEntityMixin.java

@@ -3,6 +3,7 @@ package net.lionarius.skinrestorer.mixin;
 import com.mojang.authlib.GameProfile;
 import net.lionarius.skinrestorer.SkinRestorer;
 import net.lionarius.skinrestorer.util.PlayerUtils;
+import net.minecraft.Util;
 import net.minecraft.server.Services;
 import net.minecraft.world.level.block.entity.SkullBlockEntity;
 import org.spongepowered.asm.mixin.Mixin;
@@ -11,6 +12,7 @@ import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
+import java.util.Locale;
 import java.util.Optional;
 import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
@@ -25,7 +27,11 @@ public abstract class SkullBlockEntityMixin {
         if (name == null)
             return;
         
-        var profileOpt = services.profileCache().get(name);
+        var profileOpt = Optional.<GameProfile>empty();
+        var gameProfileInfo = ((GameProfileCacheAccessor) services.profileCache()).getProfilesByName().get(name.toLowerCase(Locale.ROOT));
+        
+        if (gameProfileInfo != null)
+            profileOpt = Optional.of(gameProfileInfo.getProfile());
         
         skinrestorer$replaceSkin(profileOpt, cir);
     }
@@ -43,6 +49,9 @@ public abstract class SkullBlockEntityMixin {
     
     @Unique
     private static void skinrestorer$replaceSkin(Optional<GameProfile> profileOpt, CallbackInfoReturnable<CompletableFuture<Optional<GameProfile>>> cir) {
+        if (SkinRestorer.getMinecraftServer() == null)
+            return;
+        
         if (profileOpt.isEmpty())
             return;
         
@@ -54,7 +63,7 @@ public abstract class SkullBlockEntityMixin {
                 PlayerUtils.applyRestoredSkin(profile, skin.value());
                 
                 return Optional.of(profile);
-            }));
+            }, Util.backgroundExecutor()));
         }
     }
 }

common/src/main/java/net/lionarius/skinrestorer/skin/SkinVariant.java

@@ -1,8 +1,11 @@
 package net.lionarius.skinrestorer.skin;
 
-public enum SkinVariant {
+import com.google.gson.annotations.SerializedName;
 
+public enum SkinVariant {
+    @SerializedName(value = "classic", alternate = {"CLASSIC"})
     CLASSIC("classic"),
+    @SerializedName(value = "slim", alternate = {"SLIM"})
     SLIM("slim");
     
     private final String name;

common/src/main/java/net/lionarius/skinrestorer/skin/provider/CollectionSkinProvider.java

@@ -0,0 +1,91 @@
+package net.lionarius.skinrestorer.skin.provider;
+
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import com.google.common.util.concurrent.UncheckedExecutionException;
+import com.mojang.authlib.properties.Property;
+import it.unimi.dsi.fastutil.Pair;
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.config.provider.collection.CollectionSkinSource;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.Result;
+import org.jetbrains.annotations.NotNull;
+
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import java.util.concurrent.TimeUnit;
+
+public final class CollectionSkinProvider implements SkinProvider {
+    
+    public static final String PROVIDER_NAME = "collection";
+    
+    private static LoadingCache<Integer, Optional<Property>> SKIN_CACHE;
+    
+    private static List<Pair<URI, SkinVariant>> COLLECTION_SKINS;
+    
+    public static void reload() {
+        COLLECTION_SKINS = loadCollectionSkins();
+        
+        createCache();
+    }
+    
+    private static List<Pair<URI, SkinVariant>> loadCollectionSkins() {
+        List<Pair<URI, SkinVariant>> skins = new ArrayList<>();
+        
+        var config = SkinRestorer.getConfig().providersConfig().collection();
+        
+        for (CollectionSkinSource source : config.sources()) {
+            var uri = source.uri();
+            if (uri != null) {
+                skins.add(Pair.of(uri, source.variant()));
+            }
+        }
+        
+        return skins;
+    }
+    
+    private static void createCache() {
+        var config = SkinRestorer.getConfig().providersConfig().collection();
+        var time = config.cache().enabled() ? config.cache().duration() : 0;
+        
+        SKIN_CACHE = CacheBuilder.newBuilder()
+                .expireAfterWrite(time, TimeUnit.SECONDS)
+                .build(new CacheLoader<>() {
+                    @Override
+                    public @NotNull Optional<Property> load(@NotNull Integer key) throws Exception {
+                        var skinEntry = COLLECTION_SKINS.get(key);
+                        return MineskinSkinProvider.loadSkin(skinEntry.first(), skinEntry.second());
+                    }
+                });
+    }
+    
+    @Override
+    public String getArgumentName() {
+        return "seed";
+    }
+    
+    @Override
+    public boolean hasVariantSupport() {
+        return false;
+    }
+    
+    @Override
+    public Result<Optional<Property>, Exception> fetchSkin(String argument, SkinVariant variant) {
+        if (COLLECTION_SKINS.isEmpty()) {
+            return Result.error(new IllegalStateException("No collection skins configured"));
+        }
+        
+        var skinIndex = Math.abs(argument.hashCode()) % COLLECTION_SKINS.size();
+        
+        try {
+            return Result.success(SKIN_CACHE.get(skinIndex));
+        } catch (UncheckedExecutionException e) {
+            return Result.error((Exception) e.getCause());
+        } catch (Exception e) {
+            return Result.error(e);
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/skin/provider/MineskinSkinProvider.java

@@ -22,6 +22,8 @@ import org.mineskin.response.QueueResponse;
 
 import java.net.InetSocketAddress;
 import java.net.URI;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.time.Duration;
 import java.util.Optional;
 import java.util.concurrent.TimeUnit;
@@ -94,13 +96,18 @@ public final class MineskinSkinProvider implements SkinProvider {
         }
     }
     
-    private static Optional<Property> loadSkin(URI uri, SkinVariant variant) throws Exception {
+    static Optional<Property> loadSkin(URI uri, SkinVariant variant) throws Exception {
         var mineskinVariant = switch (variant) {
             case CLASSIC -> Variant.CLASSIC;
             case SLIM -> Variant.SLIM;
         };
         
-        var request = GenerateRequest.url(uri)
+        var request = "file".equals(uri.getScheme())
+                ? GenerateRequest.upload(Files.newInputStream(Path.of(uri)))
+                .variant(mineskinVariant)
+                .name("skinrestorer-skin")
+                .visibility(Visibility.UNLISTED)
+                : GenerateRequest.url(uri)
                 .variant(mineskinVariant)
                 .name("skinrestorer-skin")
                 .visibility(Visibility.UNLISTED);

common/src/main/java/net/lionarius/skinrestorer/skin/provider/SkinProvider.java

@@ -13,6 +13,7 @@ public interface SkinProvider {
     MojangSkinProvider MOJANG = new MojangSkinProvider();
     ElyBySkinProvider ELY_BY = new ElyBySkinProvider();
     MineskinSkinProvider MINESKIN = new MineskinSkinProvider();
+    CollectionSkinProvider COLLECTION = new CollectionSkinProvider();
     SkinShuffleSkinProvider SKIN_SHUFFLE = new SkinShuffleSkinProvider();
     
     Set<String> BUILTIN_PROVIDER_NAMES = ImmutableSet.of(
@@ -20,6 +21,7 @@ public interface SkinProvider {
             MojangSkinProvider.PROVIDER_NAME,
             ElyBySkinProvider.PROVIDER_NAME,
             MineskinSkinProvider.PROVIDER_NAME,
+            CollectionSkinProvider.PROVIDER_NAME,
             SkinShuffleSkinProvider.PROVIDER_NAME
     );
     

common/src/main/java/net/lionarius/skinrestorer/util/PlayerUtils.java

@@ -6,7 +6,6 @@ import com.mojang.authlib.GameProfile;
 import com.mojang.authlib.properties.Property;
 import com.mojang.authlib.yggdrasil.response.MinecraftProfilePropertiesResponse;
 import net.lionarius.skinrestorer.mixin.ChunkMapAccessor;
-import net.lionarius.skinrestorer.mixin.TrackedEntityAccessorInvoker;
 import net.minecraft.network.chat.Component;
 import net.minecraft.network.protocol.game.*;
 import net.minecraft.server.level.ChunkMap;
@@ -50,14 +49,14 @@ public final class PlayerUtils {
                 )
         ));
         
-        var trackedEntity = (TrackedEntityAccessorInvoker) ((ChunkMapAccessor) chunkMap).getEntityMap().get(player.getId());
+        var trackedEntity = ((ChunkMapAccessor) chunkMap).getEntityMap().get(player.getId());
         if (trackedEntity != null) {
             var seenBy = Set.copyOf(trackedEntity.getSeenBy());
             for (var observerConnection : seenBy) {
                 var observer = observerConnection.getPlayer();
                 trackedEntity.invokeRemovePlayer(observer);
                 
-                var trackedObserverEntity = (TrackedEntityAccessorInvoker) ((ChunkMapAccessor) chunkMap).getEntityMap().get(observer.getId());
+                var trackedObserverEntity = ((ChunkMapAccessor) chunkMap).getEntityMap().get(observer.getId());
                 if (trackedObserverEntity != null) {
                     trackedObserverEntity.invokeRemovePlayer(player);
                     trackedObserverEntity.invokeUpdatePlayer(player);

common/src/main/resources/META-INF/accesstransformer.cfg

@@ -0,0 +1 @@
+public net.minecraft.server.players.GameProfileCache$GameProfileInfo

common/src/main/resources/skinrestorer.accesswidener

@@ -0,0 +1,3 @@
+accessWidener v2 named
+
+accessible class net/minecraft/server/players/GameProfileCache$GameProfileInfo

common/src/main/resources/skinrestorer.mixins.json

@@ -10,7 +10,8 @@
         "PlayerListMixin",
         "ServerLoginPacketListenerImplMixin",
         "TrackedEntityAccessorInvoker",
-        "SkullBlockEntityMixin"
+        "SkullBlockEntityMixin",
+        "GameProfileCacheAccessor"
     ],
     "injectors": {
         "defaultRequire": 1

fabric/gradle.properties

@@ -3,3 +3,4 @@ fabric_loader_version=0.15.0
 fabric_api_version=0.97.5+1.20.5
 
 optional_dependencies=fabric-api
+additional_modloaders=quilt

fabric/src/main/java/net/lionarius/skinrestorer/fabric/mixin/MinecraftServerMixin.java

@@ -15,4 +15,10 @@ public abstract class MinecraftServerMixin {
     private void onServerStarted(CallbackInfo ci) {
         SkinRestorer.Events.onServerStarted((MinecraftServer) (Object) this);
     }
+    
+    @Inject(method = "runServer",
+            at = @At(value = "INVOKE", target = "Lnet/minecraft/server/MinecraftServer;onServerExit()V"))
+    private void onServerStopped(CallbackInfo ci) {
+        SkinRestorer.Events.onServerStopped((MinecraftServer) (Object) this);
+    }
 }

fabric/src/main/resources/fabric.mod.json

@@ -24,6 +24,7 @@
         "${mod_id}.mixins.json",
         "${mod_id}.fabric.mixins.json"
     ],
+    "accessWidener": "${mod_id}.accesswidener",
     "depends": {
         "fabricloader": ">=${fabric_loader_version}",
         "minecraft": ">=${minecraft_version}",

forge/build.gradle

@@ -33,7 +33,7 @@ minecraft {
     // Automatically enable forge AccessTransformers if the file exists
     // This location is hardcoded in Forge and can not be changed.
     // https://github.com/MinecraftForge/MinecraftForge/blob/be1698bb1554f9c8fa2f58e32b9ab70bc4385e60/fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModFile.java#L123
-    def at = project(':common').file('src/main/resources/META-INF/accesstransformer.cfg')
+    def at = project(":common").file('src/main/resources/META-INF/accesstransformer.cfg')
     if (at.exists()) {
         accessTransformer = at
     }
@@ -88,3 +88,7 @@ sourceSets.each {
     it.output.resourcesDir = dir
     it.java.destinationDirectory = dir
 }
+
+tasks.named('processResources') {
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
+}

forge/src/main/java/net/lionarius/skinrestorer/forge/SkinRestorerForge.java

@@ -4,6 +4,7 @@ import net.lionarius.skinrestorer.SkinRestorer;
 import net.lionarius.skinrestorer.compat.skinshuffle.SkinShuffleCompatibility;
 import net.minecraftforge.event.RegisterCommandsEvent;
 import net.minecraftforge.event.server.ServerStartedEvent;
+import net.minecraftforge.event.server.ServerStoppedEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
 
@@ -27,4 +28,9 @@ public final class SkinRestorerForge {
     public static void onServerStarted(ServerStartedEvent event) {
         SkinRestorer.Events.onServerStarted(event.getServer());
     }
+    
+    @SubscribeEvent
+    public static void onServerStopped(ServerStoppedEvent event) {
+        SkinRestorer.Events.onServerStopped(event.getServer());
+    }
 }

gradle.properties

@@ -8,7 +8,7 @@ minecraft_version_list=1.20.5,1.20.6
 minecraft_version_range=[1.20.5,1.20.6]
 mod_id=skinrestorer
 mod_name=SkinRestorer
-mod_version=2.4.2
+mod_version=2.5.0
 mod_author=Lionarius
 mod_homepage=https://modrinth.com/mod/skinrestorer
 mod_sources=https://github.com/Suiranoil/SkinRestorer
@@ -18,7 +18,7 @@ credits=
 description=A server-side mod for managing skins.
 
 # Dependencies
-mineskin_client_version=3.0.6-SNAPSHOT
+mineskin_client_version=3.2.1-SNAPSHOT
 
 # ParchmentMC mappings, see https://parchmentmc.org/docs/getting-started#choose-a-version for new versions
 parchment_minecraft=1.20.6

neoforge/build.gradle

@@ -12,9 +12,9 @@ neoForge {
     version = neoforge_version
     
     // Automatically enable neoforge AccessTransformers if the file exists
-    def at = project(':common').file('src/main/resources/META-INF/accesstransformer.cfg')
+    def at = project(":common").file('src/main/resources/META-INF/accesstransformer.cfg')
     if (at.exists()) {
-        minecraft.accessTransformers.file(at)
+        accessTransformers.from(at.absolutePath)
     }
 
     parchment {

neoforge/src/main/java/net/lionarius/skinrestorer/neoforge/SkinRestorerNeoForge.java

@@ -7,6 +7,7 @@ import net.neoforged.fml.common.EventBusSubscriber;
 import net.neoforged.fml.common.Mod;
 import net.neoforged.neoforge.event.RegisterCommandsEvent;
 import net.neoforged.neoforge.event.server.ServerStartedEvent;
+import net.neoforged.neoforge.event.server.ServerStoppedEvent;
 
 @Mod(SkinRestorer.MOD_ID)
 @EventBusSubscriber(modid = SkinRestorer.MOD_ID)
@@ -28,4 +29,9 @@ public final class SkinRestorerNeoForge {
     public static void onServerStarted(ServerStartedEvent event) {
         SkinRestorer.Events.onServerStarted(event.getServer());
     }
+    
+    @SubscribeEvent
+    public static void onServerStopped(ServerStoppedEvent event) {
+        SkinRestorer.Events.onServerStopped(event.getServer());
+    }
 }