From 3ecd31c41e9b7f9b7661188b48dcd797038bc6dd Mon Sep 17 00:00:00 2001
From: zOnlyKroks <finnrades@gmail.com>
Date: Sat, 12 Mar 2022 11:56:54 +0100
Subject: [PATCH] Parsing ist kaputt.

---
 .../bungeecore/listeners/mods/Fabric.java     | 91 ++++++++++++++-----
 1 file changed, 69 insertions(+), 22 deletions(-)

diff --git a/src/de/steamwar/bungeecore/listeners/mods/Fabric.java b/src/de/steamwar/bungeecore/listeners/mods/Fabric.java
index 61ae91ac..6037c6ec 100644
--- a/src/de/steamwar/bungeecore/listeners/mods/Fabric.java
+++ b/src/de/steamwar/bungeecore/listeners/mods/Fabric.java
@@ -1,17 +1,40 @@
+/*
+    This file is a part of the SteamWar software.
+
+    Copyright (C) 2020  SteamWar.de-Serverteam
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 package de.steamwar.bungeecore.listeners.mods;
 
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import de.steamwar.bungeecore.BungeeCore;
 import de.steamwar.bungeecore.listeners.BasicListener;
 import de.steamwar.bungeecore.sql.Mod;
-import io.netty.util.internal.StringUtil;
-import net.md_5.bungee.api.connection.PendingConnection;
+import de.steamwar.bungeecore.sql.Punishment;
+import de.steamwar.bungeecore.sql.SteamwarUser;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 import net.md_5.bungee.api.event.PluginMessageEvent;
 import net.md_5.bungee.event.EventHandler;
-import org.apache.commons.lang3.StringUtils;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Locale;
+import java.sql.Timestamp;
+import java.time.Instant;
+import java.util.*;
+import java.util.logging.Level;
 
 public class Fabric extends BasicListener {
 
@@ -20,26 +43,50 @@ public class Fabric extends BasicListener {
         if(!e.getTag().equals("fabricmodsender:mods"))
             return;
 
-        String dataString = new String(e.getData()).substring(2);
-        dataString = StringUtils.chop(dataString);
-        char x = 34;
-        dataString = dataString.replace(x, ' ');
-        dataString = dataString.replaceAll("\\s+","");
-
-        String[] parts = dataString.split(",");
-
-        List<Mod> mods = new ArrayList<>();
-
-        for(String mod : parts) {
-            mods.add(Mod.get(mod, Mod.Platform.FABRIC));
+        if (!(e.getSender() instanceof ProxiedPlayer)) {
+            return;
         }
 
-        if (e.getSender() instanceof ProxiedPlayer) {
-            ProxiedPlayer player = (ProxiedPlayer) e.getSender();
+        ProxiedPlayer player = (ProxiedPlayer) e.getSender();
 
-            if(!Utils.handleMods(player, mods))
-                player.disconnect("");
+        List<Mod> mods = new LinkedList<>();
+
+        String dataString = new String(e.getData()).substring(1);
+        String dataString2 = "{:" + dataString + "}";
+
+        System.out.println(dataString2);
+
+        try {
+            JsonArray array = new JsonParser().parse(dataString).getAsJsonArray();
+
+            for(int i = 0; i < array.size(); i++) {
+                mods.add(Mod.get(array.get(i).getAsString(), Mod.Platform.FABRIC));
+            }
+
+            boolean isSorted = isSortedAlphabetically(mods);
+
+            if(!isSorted) {
+                SteamwarUser user = SteamwarUser.get(player.getUniqueId());
+                user.punish(Punishment.PunishmentType.Ban, Timestamp.from(Instant.now()), "§7Du hast probiert den FabricModSender zu umgehen!", 0, true);
+                BungeeCore.log(Level.SEVERE, user.getUserName() + " " + user.getId() + " wurde automatisch gebannt, da er den FabricModSender editiert hatte");
+                return;
+            }
+
+            Utils.handleMods(player,mods);
+        }catch (Exception ex) {
+            ex.printStackTrace();
+            player.disconnect("§7Mod Verification failed! Contact a Developer");
         }
     }
 
+    private boolean isSortedAlphabetically(List<Mod> mods) {
+        boolean isSorted = true;
+        for(int i = 0; i < mods.size() - 1; i++) {
+            if(mods.get(i).getModName().compareToIgnoreCase(mods.get(i + 1).getModName()) > 0) {
+                isSorted = false;
+                break;
+            }
+        }
+        return isSorted;
+    }
 }