add legacy forge mod and new forge mod support

src/main/java/cc.fascinated/model/mojang/JavaServerStatusToken.java

@@ -2,6 +2,7 @@ package cc.fascinated.model.mojang;
 
 import cc.fascinated.model.server.JavaMinecraftServer;
 import cc.fascinated.model.server.MinecraftServer;
+import com.google.gson.annotations.SerializedName;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.ToString;
@@ -23,14 +24,19 @@ public final class JavaServerStatusToken {
     private final MinecraftServer.Players players;
 
     /**
-     * The mods running on the server.
+     * The mods running on this server.
      */
-    private final MinecraftServer.Mod[] mods;
+    @SerializedName("modinfo")
+    private JavaMinecraftServer.ForgeModInfo modInfo;
 
     /**
-     * The plugins running on the server.
+     * The mods running on this server.
+     * <p>
+     *     This is only used for servers
+     *     running 1.13 and above.
+     * </p>
      */
-    private final MinecraftServer.Plugin[] plugins;
+    private JavaMinecraftServer.ForgeData forgeData;
 
     /**
      * The motd of the server.

src/main/java/cc.fascinated/model/server/JavaMinecraftServer.java

@@ -5,10 +5,8 @@ import cc.fascinated.common.JavaMinecraftVersion;
 import cc.fascinated.common.ServerUtils;
 import cc.fascinated.config.Config;
 import cc.fascinated.model.mojang.JavaServerStatusToken;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.NonNull;
-import lombok.Setter;
+import com.google.gson.annotations.SerializedName;
+import lombok.*;
 import net.md_5.bungee.api.chat.TextComponent;
 import net.md_5.bungee.chat.ComponentSerializer;
 
@@ -29,14 +27,18 @@ public final class JavaMinecraftServer extends MinecraftServer {
     private Favicon favicon;
 
     /**
-     * The mods of the server.
+     * The mods running on this server.
      */
-    private MinecraftServer.Mod[] mods;
+    private ForgeModInfo modInfo;
 
     /**
-     * The plugins of the server.
+     * The mods running on this server.
+     * <p>
+     *     This is only used for servers
+     *     running 1.13 and above.
+     * </p>
      */
-    private MinecraftServer.Plugin[] plugins;
+    private ForgeData forgeData;
 
     /**
      * The mojang banned status of the server.
@@ -44,12 +46,12 @@ public final class JavaMinecraftServer extends MinecraftServer {
     private boolean mojangBanned;
 
     public JavaMinecraftServer(String hostname, String ip, int port, MOTD motd, Players players,
-                               @NonNull Version version, Favicon favicon, Mod[] mods, Plugin[] plugins) {
+                               @NonNull Version version, Favicon favicon, ForgeModInfo modInfo, ForgeData forgeData) {
         super(hostname, ip, port, motd, players);
         this.version = version;
         this.favicon = favicon;
-        this.mods = mods;
-        this.plugins = plugins;
+        this.modInfo = modInfo;
+        this.forgeData = forgeData;
     }
 
     /**
@@ -75,8 +77,8 @@ public final class JavaMinecraftServer extends MinecraftServer {
                 token.getPlayers(),
                 token.getVersion().detailedCopy(),
                 JavaMinecraftServer.Favicon.create(token.getFavicon(), ServerUtils.getAddress(hostname, port)),
-                token.getMods(),
-                token.getPlugins()
+                token.getModInfo(),
+                token.getForgeData()
         );
     }
 
@@ -151,4 +153,81 @@ public final class JavaMinecraftServer extends MinecraftServer {
             return new Favicon(base64, Config.INSTANCE.getWebPublicUrl() + "/server/icon/%s".formatted(address));
         }
     }
+
+    /**
+     * Forge mod information for a server.
+     */
+    @AllArgsConstructor @Getter @ToString
+    public static class ForgeModInfo {
+        /**
+         * The type of modded server this is.
+         */
+        @NonNull private final String type;
+
+        /**
+         * The list of mods on this server, null or empty if none.
+         */
+        private final ForgeMod[] modList;
+
+        /**
+         * A forge mod for a server.
+         */
+        @AllArgsConstructor @Getter @ToString
+        private static class ForgeMod {
+            /**
+             * The id of this mod.
+             */
+            @NonNull @SerializedName("modid") private final String name;
+
+            /**
+             * The version of this mod.
+             */
+            private final String version;
+        }
+    }
+
+    @AllArgsConstructor @Getter
+    public static class ForgeData {
+
+        /**
+         * The list of mod channels on this server, null or empty if none.
+         */
+        private final Channel[] channels;
+
+        /**
+         * The list of mods on this server, null or empty if none.
+         */
+        private final Mod[] mods;
+
+        @AllArgsConstructor @Getter
+        public static class Channel {
+            /**
+             * The id of this mod channel.
+             */
+            @NonNull @SerializedName("res") private final String name;
+
+            /**
+             * The version of this mod channel.
+             */
+            private final String version;
+
+            /**
+             * Whether this mod channel is required to join.
+             */
+            private boolean required;
+        }
+
+        @AllArgsConstructor @Getter
+        public static class Mod {
+            /**
+             * The id of this mod.
+             */
+            @NonNull @SerializedName("modId") private final String name;
+
+            /**
+             * The version of this mod.
+             */
+            @SerializedName("modmarker") private final String version;
+        }
+    }
 }

src/main/java/cc.fascinated/model/server/MinecraftServer.java

@@ -141,40 +141,4 @@ public class MinecraftServer {
             @NonNull private final String name;
         }
     }
-
-    /**
-     * Mod data for a server.
-     */
-    @AllArgsConstructor @Getter
-    public static final class Mod {
-
-        /**
-         * The name of the mod.
-         */
-        private final String name;
-
-
-        /**
-         * The version of the mod.
-         */
-        private final String version;
-    }
-
-    /**
-     * Plugin data for a server.
-     */
-    @AllArgsConstructor @Getter
-    public static final class Plugin {
-
-        /**
-         * The name of the plugin.
-         */
-        private final String name;
-
-
-        /**
-         * The version of the plugin.
-         */
-        private final String version;
-    }
 }

src/main/java/cc.fascinated/service/pinger/impl/JavaMinecraftServerPinger.java

@@ -47,6 +47,7 @@ public final class JavaMinecraftServerPinger implements MinecraftServerPinger<Ja
                 // Send the status request to the server, and await back the response
                 JavaPacketStatusInStart packetStatusInStart = new JavaPacketStatusInStart();
                 packetStatusInStart.process(inputStream, outputStream);
+                System.out.println(packetStatusInStart.getResponse());
                 JavaServerStatusToken token = Main.GSON.fromJson(packetStatusInStart.getResponse(), JavaServerStatusToken.class);
                 return JavaMinecraftServer.create(hostname, ip, port, token);
             }

target/classes/application.yml

@@ -3,9 +3,9 @@ server:
   port: 80
   servlet:
     context-path: /
-  error:
-    whitelabel:
-      enabled: false
+
+# The public URL of the application
+public-url: http://localhost:80
 
 # Spring Configuration
 spring:
@@ -17,4 +17,7 @@ spring:
       database: 0
       auth: "" # Leave blank for no auth
 
-public-url: http://localhost:80
+  # Don't serialize null values
+  jackson:
+    default-property-inclusion: non_null
+