Add RangeBan

2025-05-25 01:47:34 +02:00
parent a784ec1ff8
commit e099ee5071
5 changed files with 231 additions and 0 deletions
@@ -0,0 +1,94 @@
+using System.Runtime.Serialization;
+using LabApi.Events.Arguments.PlayerEvents;
+using LabApi.Events.Handlers;
+using LabApi.Features;
+using LabApi.Features.Console;
+using LabApi.Loader.Features.Plugins;
+
+namespace RangeBan;
+
+public class RangeBan: Plugin<RangeBanConfig>
+{
+    
+    public override void Enable()
+    {
+        Logger.Debug("Loading...");
+        PlayerEvents.PreAuthenticating += OnAuth;
+    }
+
+    public override void Disable()
+    {
+        Logger.Debug("Disabling...");
+        PlayerEvents.PreAuthenticating -= OnAuth;
+    }
+
+    private void OnAuth(PlayerPreAuthenticatingEventArgs ev)
+    {
+        Logger.Debug($"Ranges: {string.Join(" ; ", Config!.IpRanges)}");
+        if (!Config!.IpRanges.Any(configIpRange => IsInRange(configIpRange, ev.IpAddress))) return;
+        ev.RejectCustom("Your IP belongs to a banned player, please contact the server administrator for more information.");
+        Logger.Warn($"Player with IP {ev.IpAddress} got kicked. UserId: {ev.UserId}");
+    }
+
+    public override string Name => "RangeBan";
+    public override string Author => "Code002Lover";
+    public override Version Version { get; } = new(1, 0, 0);
+    public override string Description => "Ban IP Ranges with ease";
+    public override Version RequiredApiVersion { get; } = new(LabApiProperties.CompiledVersion);
+
+
+    public static bool IsInRange(string range, string ip)
+    {
+        if (string.IsNullOrEmpty(ip) || string.IsNullOrEmpty(range))
+            return false;
+
+        // Handle CIDR notation (e.g., "192.168.1.0/24")
+        if (!range.Contains("/"))
+        {
+            //We only handle direct IPs and CIDR
+            if (range.Split('.').Length != 4)
+            {
+                return false;
+            }
+            
+            return ip == range;
+        };
+        
+        var parts = range.Split('/');
+        if (parts.Length != 2 || !int.TryParse(parts[1], out var cidrBits))
+            return false;
+
+        if (cidrBits > 32)
+        {
+            return false;
+        }
+
+        var networkAddress = IPToUInt32(parts[0]);
+        var mask = uint.MaxValue << (32 - cidrBits);
+        var ipAddress = IPToUInt32(ip);
+
+        return (ipAddress & mask) == (networkAddress & mask);
+
+    }
+
+    private static uint IPToUInt32(string ipAddress)
+    {
+        var parts = ipAddress.Split('.');
+        if (parts.Length != 4)
+            throw new ArgumentException("Invalid IP address format");
+
+        uint result = 0;
+        for (var i = 0; i < 4; i++)
+        {
+            if (!byte.TryParse(parts[i], out var part))
+                throw new ArgumentException("Invalid IP address segment");
+            result = (result << 8) | part;
+        }
+        return result;
+    }
+}
+
+public class RangeBanConfig
+{
+    public string[] IpRanges { get; set; } = {};
+}
@@ -0,0 +1,37 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net48</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>disable</Nullable>
+        <LangVersion>10</LangVersion>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+        <Optimize>true</Optimize>
+        <CheckForOverflowUnderflow>true</CheckForOverflowUnderflow>
+        <DebugType>full</DebugType>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+        <Optimize>true</Optimize>
+        <CheckForOverflowUnderflow>false</CheckForOverflowUnderflow>
+        <DebugType>none</DebugType>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <Reference Include="Assembly-CSharp">
+            <HintPath>..\..\.local\share\Steam\steamapps\common\SCP Secret Laboratory Dedicated Server\SCPSL_Data\Managed\Assembly-CSharp.dll</HintPath>
+        </Reference>
+        <Reference Include="Mirror">
+            <HintPath>..\..\.local\share\Steam\steamapps\common\SCP Secret Laboratory Dedicated Server\SCPSL_Data\Managed\Mirror.dll</HintPath>
+        </Reference>
+        <Reference Include="UnityEngine.CoreModule">
+            <HintPath>..\..\.local\share\Steam\steamapps\common\SCP Secret Laboratory Dedicated Server\SCPSL_Data\Managed\UnityEngine.CoreModule.dll</HintPath>
+        </Reference>
+    </ItemGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Northwood.LabAPI" Version="1.0.2" />
+    </ItemGroup>
+</Project>