FREE NoSteam : 2.2.8 2.2.8

// Reference: EasyAntiCheat.Server
using ConVar;
using Facepunch;
using Network;
using System;
using System.IO;
using System.Text;
using System.Linq;
using System.Collections.Generic;
using System.Net;
using System.Timers;
using System.Reflection;
using Oxide.Core;
using Oxide.Core.Plugins;
using Network;
using EasyAntiCheat.Server.Legacy;

namespace Oxide.Plugins
{
    [Info("	NoSteam", "Semen", "2.2.8", ResourceId = 1)]
    class NoSteam : RustPlugin
    {
        private EasyAntiCheatServer eac;
        public bool EacAuth => true;

        public class STEAM_OWNERSHIPTICKET
        {
            public ulong SteamID;
            public uint AppID;
        }

        public class STEAM_TICKET
        {
            public uint Length;
            public ulong ID;
            public ulong SteamID;
            public uint ConnectionTime;
            public STEAM_OWNERSHIPTICKET Token;
        }

        public class SteamTicket
        {
            public ulong SteamID;
            public string Username;
            public STEAM_TICKET Ticket;
            public byte[] Token;

            public SteamTicket(Network.Connection connection = null)
            {
                this.SteamID = 0;
                this.Username = string.Empty;
                this.Ticket = new STEAM_TICKET();
                this.Token = new byte[0];

                if (connection != null)
                {
                    this.SteamID = connection.userid;
                    this.Username = connection.username;
                    this.Token = connection.token;
                }
            }

            public bool IsSteam
            {
                get
                {
                    return (this.SteamID != 0 && this.Ticket.SteamID == this.SteamID && this.Ticket.Token.SteamID == this.SteamID);
                }
            }

            public bool IsValid
            {
                get
                {
                    return (this.IsSteam && this.Ticket.Token.AppID == 252490);
                }
            }

        }

        private void Init()
        {
            this.eac = new EasyAntiCheatServer(ConVar.Server.hostname);
        }
		
        private object OnUserApprove(Connection connection)
        {
            SteamTicket ticket = new SteamTicket(connection);
			
            if (!ticket.IsSteam)
            {   
                if (connection.token.Length == 234 || connection.token.Length == 240)
                {
					this.eac.RegisterUser(connection.token, connection.userid.ToString());
                    connection.authStatus = "ok";
                    ServerMgr.Instance.JoinGame(connection);
					UnityEngine.Debug.Log($"[AUTH] [{connection.token.Length}] {connection.username} / {connection.userid}");
				    return true;
				}
				
				UnityEngine.Debug.Log($"[AUTH] [ERROR] {connection.username} Ошибка # {connection.token.Length}");
				return false;
            }
			
			UnityEngine.Debug.Log($"[AUTH] [ERROR] {connection.username} Ошибка # 1");
			return false;
        }

        private void OnPlayerDisconnected(BasePlayer player, string reason)
        {
            this.eac.UnregisterUser(player.net.connection.token);
        }

    }
}