Offline playerlist

src/main/java/xyz/mangostudio/smp/bridge/MinecraftServerBridge.java

@@ -0,0 +1,9 @@
+package xyz.mangostudio.smp.bridge;
+
+import java.util.List;
+
+public interface MinecraftServerBridge {
+    List<String> getWhitelistNames();
+
+    void setWhitelistNames(List<String> whitelistNames);
+}

src/main/java/xyz/mangostudio/smp/mixin/server/MinecraftServerMixin.java

@@ -1,16 +1,31 @@
 package xyz.mangostudio.smp.mixin.server;
 
+import java.util.List;
+
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Redirect;
+import xyz.mangostudio.smp.bridge.MinecraftServerBridge;
 
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.world.ServerChunkManager;
 
 @Mixin(MinecraftServer.class)
-public class MinecraftServerMixin {
+public class MinecraftServerMixin implements MinecraftServerBridge {
+    private List<String> whitelistNames;
+
     @Redirect(method = "prepareStartRegion", at = @At(value = "INVOKE", target = "Lnet/minecraft/server/world/ServerChunkManager;getTotalChunksLoadedCount()I"))
     public int onPrepareStartReg_redirectChunksLoaded(ServerChunkManager scm) {
         return 441;
     }
+
+    @Override
+    public List<String> getWhitelistNames() {
+        return this.whitelistNames;
+    }
+
+    @Override
+    public void setWhitelistNames(List<String> whitelistNames) {
+        this.whitelistNames = whitelistNames;
+    }
 }

src/main/java/xyz/mangostudio/smp/mod/SMPMod.java

@@ -1,14 +1,31 @@
 package xyz.mangostudio.smp.mod;
 
+import java.io.FileInputStream;
+import java.util.List;
+import java.util.Properties;
+
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
+import xyz.mangostudio.smp.bridge.MinecraftServerBridge;
 
 import net.fabricmc.api.DedicatedServerModInitializer;
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents;
 
 public class SMPMod implements DedicatedServerModInitializer {
     private static final Logger LOGGER = LogManager.getLogger("MangoplexSMP");
 
     @Override
     public void onInitializeServer() {
+        Properties properties = new Properties();
+
+        try {
+            properties.load(new FileInputStream("smp.properties"));
+        } catch (Exception e) {
+            LOGGER.error("Failed to load smp.properties", e);
+        }
+
+        ServerLifecycleEvents.SERVER_STARTING.register(server -> {
+            ((MinecraftServerBridge) server).setWhitelistNames(List.of(properties.getProperty("offline_users").split(",")));
+        });
     }
 }