![[SRC]Simple Loginserver in C#](https://www.elitepvpers.com/forum/iconimages/nostale/src-simple-loginserver-c_ltr.gif){kind=small}
[SRC]Simple Loginserver in C#
Code:
using System;
using System.Text;
using System.Threading;
using System.Net.Sockets;
using System.Net;
using System.Collections.Generic;
using MySql.Data.MySqlClient;
namespace Loginserver
{
public class Server
{
public static string clientVer = "0.9.3.3044";
static IPAddress serverIP = IPAddress.Any;
static int serverPort = 4001;
public static List<string> serverList = new List<string>();
public static Random rnd = new Random();
static void Main(string[] args)
{
Console.Title = "NosTalgie Authserver - C# Rewrite";
Console.WriteLine("-------------------------------------------------------");
Console.WriteLine(" NosTalgie Authserver");
Console.WriteLine(" Version 0.0.1 Alpha - C# Rewrite");
Console.WriteLine(" developed by Ciapa");
Console.WriteLine("-------------------------------------------------------");
Console.Write(" |I| Populating Serverlist...");
//Server Format: "{IP}:{PORT}:{STATUS}:{SERV}.{CHAN} {NAME}
//Channelstatus:
// 1- 3=Recommended
// 4-11=Normal
//12-18=High Traffic
//19++ =Full
serverList.Add("10.100.10.10" + ":" + 1301 + ":12:1.1." + "S1-Ancelloan");
serverList.Add("10.100.10.10" + ":" + 1302 + ":4:1.2." + "S1-Ancelloan");
serverList.Add("10.100.10.10" + ":" + 1303 + ":1:1.3." + "S1-Ancelloan");
serverList.Add("10.100.10.11" + ":" + 1301 + ":12:2.1." + "S2-Fortuna");
serverList.Add("10.100.10.11" + ":" + 1302 + ":4:2.2." + "S2-Fortuna");
serverList.Add("10.100.10.11" + ":" + 1303 + ":1:2.3." + "S2-Fortuna");
Console.WriteLine(" DONE");
TcpListener serverSocket = new TcpListener(serverIP, serverPort);
TcpClient clientSocket = default(TcpClient);
serverSocket.Start();
Console.WriteLine(" |I| " + "Server Started. Listening on {0}:{1}", serverIP.ToString(), serverPort);
while (true)
{
clientSocket = serverSocket.AcceptTcpClient();
handleClinet client = new handleClinet();
client.startClient(clientSocket);
}
}
}
public class handleClinet
{
TcpClient clientSocket;
public void startClient(TcpClient inClientSocket)
{
this.clientSocket = inClientSocket;
Thread ctThread = new Thread(doLogin);
ctThread.Start();
}
private void doLogin()
{
byte[] bytesFrom = new byte[65536];
string[] cdata = null;
Byte[] sendBytes = null;
string serverResponse = null;
string servers = "";
foreach (string s in Server.serverList)
{
servers = servers + s + " ";
}
try
{
NetworkStream networkStream = clientSocket.GetStream();
networkStream.Read(bytesFrom, 0, bytesFrom.Length);
cdata = LoginDecrypt(bytesFrom, bytesFrom.Length).Split(" ".ToCharArray());
if (cdata[0] == "NoS0575")
{
if (cdata[4].Split(Convert.ToChar("\x0B")).Length == 2)
{
if (cdata[4].Split(Convert.ToChar("\x0B"))[1] == Server.clientVer)
{
string uname = cdata[2];
//If you only want to work with the encrypted password
string encpw = cdata[3];
string decpw = LoginPassDecrypt(encpw);
IPEndPoint cipep = (IPEndPoint)clientSocket.Client.RemoteEndPoint;
IPAddress cipa = cipep.Address;
int session = Login(uname, decpw);
if (session != 0)
{
Console.WriteLine(" |>| Successful Login from IP {0} ; User {1}", cipa.ToString(), uname);
//Response Format: "NsTeST {SESSION} {SERVER} {SERVER}...
serverResponse = "NsTeST " + session + " " + servers;
}
else
{
Console.WriteLine(" |>| Failed Login from IP {0} ; User {1}", cipa.ToString(), uname);
serverResponse = "fail Login fehlgeschlagen. Entweder waren die Zugangsdaten nicht korrekt, du bist gebannt oder du bist bereits online!";
}
}
else
{
serverResponse = "fail Fehler: Clientversion stimmt nicht mit der Serverversion ueberein!";
}
}
}
sendBytes = LoginEncrypt(serverResponse);
networkStream.Write(sendBytes, 0, sendBytes.Length);
networkStream.Flush();
Console.WriteLine(" |<| " + serverResponse);
}
catch (Exception ex)
{
Console.WriteLine(" |E| " + ex.ToString());
}
}
private static int Login(string user, string pass)
{
try
{
string dbConString = "datasource=localhost;port=3306;username=root;password=ZENSIERT";
MySqlConnection dbCon = new MySqlConnection(dbConString);
MySqlCommand dbCmd = new MySqlCommand("select * from nostalgie_dev.tbl_accounts where User=@user and Password=@password and IsBlocked=0 and IsOnline=0;", dbCon);
dbCmd.Parameters.AddWithValue("@user", user);
dbCmd.Parameters.AddWithValue("@password", pass);
MySqlDataReader dbReader;
dbCon.Open();
dbReader = dbCmd.ExecuteReader();
int i = 0;
int id = 0;
int session = Server.rnd.Next(10000, 99999);
while (dbReader.Read())
{
i++;
id = dbReader.GetInt32("AccountID");
}
dbCon.Close();
if (i == 1)
{
MySqlConnection dbConx = new MySqlConnection(dbConString);
MySqlCommand dbCmdx = new MySqlCommand("UPDATE nostalgie_dev.tbl_accounts SET LastSession=@session WHERE AccountID=@id;", dbConx);
dbCmdx.Parameters.AddWithValue("@session", session);
dbCmdx.Parameters.AddWithValue("@id", id);
MySqlDataReader dbReaderx;
dbConx.Open();
dbReaderx = dbCmdx.ExecuteReader();
while (dbReaderx.Read())
{
}
dbConx.Close();
return session;
}
return 0;
}
catch (Exception ex)
{
return 0;
}
}
private static string LoginDecrypt(byte[] tmp, int size)
{
for (int i = 0; i < size; i++) tmp[i] = (byte)(tmp[i] - 0xF ^ 0xC3);
return Encoding.ASCII.GetString(tmp).Substring(0, size);
}
private static byte[] LoginEncrypt(string str)
{
str += " ";
byte[] tmp = new byte[str.Length + 1];
tmp = Encoding.ASCII.GetBytes(str);
for (int i = 0; i < str.Length; i++) tmp[i] = Convert.ToByte(str[i] + 15);
tmp[tmp.Length - 1] = 25;
return tmp;
}
private static string LoginPassDecrypt(string tmp)
{
bool equal = tmp.Length % 2 == 0 ? true : false;
string str = equal == true ? tmp.Remove(0, 3) : tmp.Remove(0, 4);
string dec_pass = string.Empty;
for (int i = 0; i < str.Length; i += 2) dec_pass += str[i];
if (dec_pass.Length % 2 != 0)
{
str = dec_pass = string.Empty;
str = tmp.Remove(0, 2);
for (int i = 0; i < str.Length; i += 2) dec_pass += str[i];
}
StringBuilder temp = new StringBuilder();
for (int i = 0; i < dec_pass.Length; i += 2) temp.Append(Convert.ToChar(Convert.ToUInt32(dec_pass.Substring(i, 2), 16)));
dec_pass = temp.ToString();
return dec_pass;
}
}
}
Don't blame me if it looks shitty coded, it's recoded from my C++ Servers, which look much prettier and work like 10 times faster. The "big daddy" has much more features, like Maintenance mode, dynamic channel load indicator and dynamic channel list(from config, checks which servers and channels are online). It was a bet with a friend of mine that I can't do this in less than 3 hours.
Don't forget to leave a thanks if you find this useful
You can find more information about the real server on this page soon™:
<-It's a work in progress, People can join it once the server is finished
ernilos just want to explain how it's done in reality on official server.^^ it's not very if session is random or incremental but if you want to stay near the official server session is incremental 
