Use PlayerDB.co for name lookups (#82)

I noticed that currently name lookups for UUIDs that are not cached, are
not supported in RedisBungee due to Mojang removing name history.

When looking at the usages, RedisBungee internally only uses the current
name (So no need for full name history), so I moved name lookups to
[PlayerDB](https://playerdb.co/), which does not have API rate limits
unlike Mojang's API.

closes #59

RedisBungee-API/src/main/java/com/imaginarycode/minecraft/redisbungee/api/util/uuid/NameFetcher.java

@@ -11,50 +11,49 @@
 package com.imaginarycode.minecraft.redisbungee.api.util.uuid;
 
 import com.google.gson.Gson;
-import com.google.gson.reflect.TypeToken;
+import com.google.gson.JsonObject;
 import com.squareup.okhttp.OkHttpClient;
 import com.squareup.okhttp.Request;
 import com.squareup.okhttp.ResponseBody;
+
 import java.io.IOException;
-import java.lang.reflect.Type;
+import java.util.Collections;
-import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
 
-@Deprecated
 public class NameFetcher {
-    private static OkHttpClient httpClient;
+	private static OkHttpClient httpClient;
-    private static final Gson gson = new Gson();
+	private static final Gson gson = new Gson();
 
-    @Deprecated
+	public static void setHttpClient(OkHttpClient httpClient) {
-    public static void setHttpClient(OkHttpClient httpClient) {
+		NameFetcher.httpClient = httpClient;
-        throw new UnsupportedOperationException("Due mojang disabled the Names API NameFetcher no longer functions and has been disabled");
+	}
-        // NameFetcher.httpClient = httpClient;
-    }
 
-    @Deprecated
+	public static List<String> nameHistoryFromUuid(UUID uuid) throws IOException {
-    public static List<String> nameHistoryFromUuid(UUID uuid) throws IOException {
+		String name = getName(uuid);
-        throw new UnsupportedOperationException("Due mojang disabled the Names API NameFetcher no longer functions and has been disabled");
+		if (name == null) return Collections.emptyList();
-//        String url = "https://api.mojang.com/user/profiles/" + uuid.toString().replace("-", "") + "/names";
+		return Collections.singletonList(name);
-//        Request request = new Request.Builder().url(url).get().build();
+	}
-//        ResponseBody body = httpClient.newCall(request).execute().body();
-//        String response = body.string();
-//        body.close();
-//
-//        Type listType = new TypeToken<List<Name>>() {
-//        }.getType();
-//        List<Name> names = gson.fromJson(response, listType);
-//
-//        List<String> humanNames = new ArrayList<>();
-//        for (Name name : names) {
-//            humanNames.add(name.name);
-//        }
-//        return humanNames;
-    }
 
-    @Deprecated
+	public static String getName(UUID uuid) throws IOException {
-    public static class Name {
+		String url = "https://playerdb.co/api/player/minecraft/" + uuid.toString();
-        private String name;
+		Request request = new Request.Builder()
-        private long changedToAt;
+				.addHeader("User-Agent", "RedisBungee-ProxioDev")
-    }
+				.url(url)
+				.get()
+				.build();
+		ResponseBody body = httpClient.newCall(request).execute().body();
+		String response = body.string();
+		body.close();
+
+		JsonObject json = gson.fromJson(response, JsonObject.class);
+		if (!json.has("success") || !json.get("success").getAsBoolean()) return null;
+		if (!json.has("data")) return null;
+		JsonObject data = json.getAsJsonObject("data");
+		if (!data.has("player")) return null;
+		JsonObject player = data.getAsJsonObject("player");
+		if (!player.has("username")) return null;
+
+		return player.get("username").getAsString();
+	}
 }

RedisBungee-API/src/main/java/com/imaginarycode/minecraft/redisbungee/api/util/uuid/UUIDTranslator.java

@@ -12,7 +12,6 @@ package com.imaginarycode.minecraft.redisbungee.api.util.uuid;
 
 import com.google.common.base.Charsets;
 import com.google.common.collect.ImmutableMap;
-import com.google.common.collect.Iterables;
 import com.google.gson.Gson;
 import com.imaginarycode.minecraft.redisbungee.api.RedisBungeePlugin;
 
@@ -169,17 +168,12 @@ public final class UUIDTranslator {
                 if (!expensiveLookups || !plugin.isOnlineMode())
                     return null;
 
-                // That didn't work. Let's ask Mojang. This call may fail, because Mojang is insane.
+                // That didn't work. Let's ask PlayerDB.
-                //
-                // UPDATE: Mojang has removed the API somewhere in september/2022 due privacy issues
-                // this is expected to fail now, so we will keep logging it until we figure out something or remove name fetching completely
-                // Name fetching class was deprecated as result
                 String name;
                 try {
-                    plugin.logFatal("Due Mojang removing the naming API, we were unable to fetch player names.");
+                    name = NameFetcher.getName(player);
-                    name = Iterables.getLast(NameFetcher.nameHistoryFromUuid(player));
                 } catch (Exception e) {
-                    plugin.logFatal("Unable to fetch name from Mojang for " + player);
+                    plugin.logFatal("Unable to fetch name from PlayerDB for " + player);
                     return null;
                 }
 

RedisBungee-Bungee/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungee.java

@@ -223,7 +223,7 @@ public class RedisBungee extends Plugin implements RedisBungeePlugin<ProxiedPlay
         httpClient = new OkHttpClient();
         Dispatcher dispatcher = new Dispatcher(getExecutorService());
         httpClient.setDispatcher(dispatcher);
-        //NameFetcher.setHttpClient(httpClient);
+        NameFetcher.setHttpClient(httpClient);
         UUIDFetcher.setHttpClient(httpClient);
         InitialUtils.checkRedisVersion(this);
         // check if this proxy is recovering from a crash and start heart the beat.

RedisBungee-Velocity/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungeeVelocityPlugin.java

@@ -110,7 +110,7 @@ public class RedisBungeeVelocityPlugin implements RedisBungeePlugin<Player>, Con
         this.httpClient = new OkHttpClient();
         Dispatcher dispatcher = new Dispatcher(Executors.newFixedThreadPool(6));
         this.httpClient.setDispatcher(dispatcher);
-        //NameFetcher.setHttpClient(httpClient);
+        NameFetcher.setHttpClient(httpClient);
         UUIDFetcher.setHttpClient(httpClient);
     }