add fallback skins

src/main/java/cc/fascinated/common/WebRequest.java

@@ -32,19 +32,19 @@ public class WebRequest {
      * @param <T> the type of the response
      */
     public static <T> T getAsEntity(String url, Class<T> clazz) throws RateLimitException {
-        ResponseEntity<T> profile = CLIENT.get()
+        ResponseEntity<T> responseEntity = CLIENT.get()
                 .uri(url)
                 .retrieve()
                 .onStatus(HttpStatusCode::isError, (request, response) -> {}) // Don't throw exceptions on error
                 .toEntity(clazz);
 
-        if (profile.getStatusCode().isError()) {
+        if (responseEntity.getStatusCode().isError()) {
             return null;
         }
-        if (profile.getStatusCode().isSameCodeAs(HttpStatus.TOO_MANY_REQUESTS)) {
+        if (responseEntity.getStatusCode().isSameCodeAs(HttpStatus.TOO_MANY_REQUESTS)) {
             throw new RateLimitException("Rate limit reached");
         }
-        return profile.getBody();
+        return responseEntity.getBody();
     }
 
     /**

src/main/java/cc/fascinated/model/skin/Skin.java

@@ -21,10 +21,14 @@ import java.util.Map;
 @Getter @Log4j2
 public class Skin {
     /**
-     * The default skin, usually used when the skin is not found.
+     * The default skins, usually used when the skin is not found.
      */
-    public static final Skin DEFAULT_SKIN = new Skin("http://textures.minecraft.net/texture/60a5bd016b3c9a1b9272e4929e30827a67be4ebb219017adbbc4a4d22ebd5b1",
-            Model.DEFAULT);
+    public static final Map<Model, Skin> DEFAULT_SKINS = new HashMap<>();
+
+    static {
+        DEFAULT_SKINS.put(Model.DEFAULT, new Skin(Config.INSTANCE.getWebPublicUrl() + "/assets/steve.png", Model.DEFAULT));
+        DEFAULT_SKINS.put(Model.SLIM, new Skin(Config.INSTANCE.getWebPublicUrl() + "/assets/alex.png", Model.SLIM));
+    }
 
     /**
      * The URL for the skin
@@ -58,6 +62,9 @@ public class Skin {
         this.model = model;
 
         this.skinImage = PlayerUtils.getSkinImage(url);
+        if (skinImage == null) { // Use the default skin if the skin is not found
+            this.skinImage = PlayerUtils.getSkinImage(DEFAULT_SKINS.get(model).getUrl());
+        }
         if (this.skinImage != null) {
             try {
                 BufferedImage image = ImageIO.read(new ByteArrayInputStream(this.skinImage));