From af286d685ded5eb04a287bbf6d52362d7dc80d73 Mon Sep 17 00:00:00 2001
From: D3v1s0m <d3v1s0m@gmail.com>
Date: Sun, 13 Aug 2023 11:12:27 +0530
Subject: [PATCH] added fallback server for fetching skin

---
 .../znpcsplus/skin/cache/MojangSkinCache.java | 47 +++++++++++++++++--
 1 file changed, 43 insertions(+), 4 deletions(-)

diff --git a/plugin/src/main/java/lol/pyr/znpcsplus/skin/cache/MojangSkinCache.java b/plugin/src/main/java/lol/pyr/znpcsplus/skin/cache/MojangSkinCache.java
index 1f40f50..170e8ad 100644
--- a/plugin/src/main/java/lol/pyr/znpcsplus/skin/cache/MojangSkinCache.java
+++ b/plugin/src/main/java/lol/pyr/znpcsplus/skin/cache/MojangSkinCache.java
@@ -52,14 +52,52 @@ public class MojangSkinCache {
                 connection.setRequestMethod("GET");
                 try (Reader reader = new InputStreamReader(connection.getInputStream(), StandardCharsets.UTF_8)) {
                     JsonObject obj = JsonParser.parseReader(reader).getAsJsonObject();
-                    if (obj.has("errorMessage")) return null;
+                    if (obj.has("errorMessage")) return fetchByNameFallback(name).join();
                     String id = obj.get("id").getAsString();
                     idCache.put(name.toLowerCase(), new CachedId(id));
-                    return fetchByUUID(id).join();
+                    Skin skin = fetchByUUID(id).join();
+                    if (skin == null) return fetchByNameFallback(name).join();
+                    return skin;
                 }
             } catch (IOException exception) {
                 if (!configManager.getConfig().disableSkinFetcherWarnings()) {
-                    logger.warning("Failed to get uuid from player name:");
+                    logger.warning("Failed to get uuid from player name, trying to use fallback server:");
+                    exception.printStackTrace();
+                }
+                return fetchByNameFallback(name).join();
+            } finally {
+                if (connection != null) connection.disconnect();
+            }
+        });
+    }
+
+    public CompletableFuture<Skin> fetchByNameFallback(String name) {
+        Player player = Bukkit.getPlayerExact(name);
+        if (player != null && player.isOnline()) return CompletableFuture.completedFuture(getFromPlayer(player));
+
+        if (idCache.containsKey(name.toLowerCase())) return fetchByUUID(idCache.get(name.toLowerCase()).getId());
+
+        return CompletableFuture.supplyAsync(() -> {
+            URL url = parseUrl("https://api.ashcon.app/mojang/v2/user/" + name);
+            HttpURLConnection connection = null;
+            try {
+                connection = (HttpURLConnection) url.openConnection();
+                connection.setRequestMethod("GET");
+                try (Reader reader = new InputStreamReader(connection.getInputStream(), StandardCharsets.UTF_8)) {
+                    JsonObject obj = JsonParser.parseReader(reader).getAsJsonObject();
+                    if (obj.has("error")) return null;
+                    String uuid = obj.get("uuid").getAsString();
+                    idCache.put(name.toLowerCase(), new CachedId(uuid));
+                    JsonObject textures = obj.get("textures").getAsJsonObject();
+                    String value = textures.get("raw").getAsJsonObject().get("value").getAsString();
+                    String signature = textures.get("raw").getAsJsonObject().get("signature").getAsString();
+                    Skin skin = new Skin(value, signature);
+                    cache.put(uuid, skin);
+                    return skin;
+                }
+            } catch (IOException exception) {
+                if (!configManager.getConfig().disableSkinFetcherWarnings()) {
+                    logger.warning("Failed to fetch skin from fallback server:");
                     exception.printStackTrace();
                 }
             } finally {
@@ -105,13 +143,14 @@ public class MojangSkinCache {
                 connection.setRequestMethod("GET");
                 try (Reader reader = new InputStreamReader(connection.getInputStream(), StandardCharsets.UTF_8)) {
                     JsonObject obj = JsonParser.parseReader(reader).getAsJsonObject();
+                    if (obj.has("errorMessage")) return null;
                     Skin skin = new Skin(obj);
                     cache.put(uuid, skin);
                     return skin;
                 }
             } catch (IOException exception) {
                 if (!configManager.getConfig().disableSkinFetcherWarnings()) {
-                    logger.warning("Failed to fetch skin:");
+                    logger.warning("Failed to fetch skin, trying to use fallback server:");
                     exception.printStackTrace();
                 }
             } finally {