using System;

using System.Diagnostics;

using System.Linq;

using System.Net;

using System.Reflection;

using System.Runtime.InteropServices;

using System.Security.Cryptography;

using System.Text;

using System.Threading;

using System.Windows.Forms;

namespace KeyAuth

{

class Program

{

/*

*

* WATCH THIS VIDEO TO SETUP APPLICATION: https://youtube.com/watch?v=RfDTdiBq4_o

*

* READ HERE TO LEARN ABOUT KEYAUTH FUNCTIONS https://github.com/KeyAuth/KeyAuth-CSHARP-Example#keyauthapp-instance-definition

*

*/

public static api KeyAuthApp = new api(

name: "", // Application Name

ownerid: "", // Account ID

version: "" // Application version. Used for automatic downloads see video here https://www.youtube.com/watch?v=kW195PLCBKs

//path: @"Your_Path_Here" // (OPTIONAL) see tutorial here https://www.youtube.com/watch?v=I9rxt821gMk&t=1s

);

[DllImport("kernel32.dll", SetLastError = true)]

private static extern bool TerminateProcess(IntPtr hProcess, uint uExitCode);

[DllImport("kernel32.dll", SetLastError = true)]

private static extern IntPtr GetCurrentProcess();

[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]

private static extern ushort GlobalFindAtom(string lpString);

static void Main(string[] args)

{

securityChecks();

Console.Title = "Loader";

Console.WriteLine("\n\n Connecting..");

KeyAuthApp.init();

autoUpdate();

if (!KeyAuthApp.response.success)

{

Console.WriteLine("\n Status: " + KeyAuthApp.response.message);

Thread.Sleep(1500);

TerminateProcess(GetCurrentProcess(), 1);

}

Console.Write("\n [1] Login\n [2] Register\n [3] Upgrade\n [4] License key only\n [5] Forgot password\n\n Choose option: ");

string username, password, key, email, code;

int option = int.Parse(Console.ReadLine());

switch (option)

{

case 1:

Console.Write("\n\n Enter username: ");

username = Console.ReadLine();

Console.Write("\n\n Enter password: ");

password = Console.ReadLine();

Console.Write("\n\n Enter 2fa code: (not using 2fa? Just press enter) ");

code = Console.ReadLine();

KeyAuthApp.login(username, password, code);

break;

case 2:

Console.Write("\n\n Enter username: ");

username = Console.ReadLine();

Console.Write("\n\n Enter password: ");

password = Console.ReadLine();

Console.Write("\n\n Enter license: ");

key = Console.ReadLine();

Console.Write("\n\n Enter email (just press enter if none): ");

email = Console.ReadLine();

KeyAuthApp.register(username, password, key, email);

break;

case 3:

Console.Write("\n\n Enter username: ");

username = Console.ReadLine();

Console.Write("\n\n Enter license: ");

key = Console.ReadLine();

KeyAuthApp.upgrade(username, key);

// don't proceed to app, user hasn't authenticated yet.

Console.WriteLine("\n Status: " + KeyAuthApp.response.message);

Thread.Sleep(2500);

TerminateProcess(GetCurrentProcess(), 1);

break;

case 4:

Console.Write("\n\n Enter license: ");

key = Console.ReadLine();

Console.Write("\n\n Enter 2fa code: (not using 2fa? Just press enter");

code = Console.ReadLine();

KeyAuthApp.license(key, code);

break;

case 5:

Console.Write("\n\n Enter username: ");

username = Console.ReadLine();

Console.Write("\n\n Enter email: ");

email = Console.ReadLine();

KeyAuthApp.forgot(username, email);

// don't proceed to app, user hasn't authenticated yet.

Console.WriteLine("\n Status: " + KeyAuthApp.response.message);

Thread.Sleep(2500);

TerminateProcess(GetCurrentProcess(), 1);

break;

default:

Console.WriteLine("\n\n Invalid Selection");

Thread.Sleep(2500);

TerminateProcess(GetCurrentProcess(), 1);

break; // no point in this other than to not get error from IDE

}

if (!KeyAuthApp.response.success)

{

Console.WriteLine("\n Status: " + KeyAuthApp.response.message);

Thread.Sleep(2500);

TerminateProcess(GetCurrentProcess(), 1);

}

Console.WriteLine("\n Logged In!"); // at this point, the client has been authenticated. Put the code you want to run after here

if(string.IsNullOrEmpty(KeyAuthApp.response.message)) TerminateProcess(GetCurrentProcess(), 1);

// user data

Console.WriteLine("\n User data:");

Console.WriteLine(" Username: " + KeyAuthApp.user_data.username);

Console.WriteLine(" License: " + KeyAuthApp.user_data.subscriptions[0].key); // this can be used if the user used a license, username, and password for register. It'll display the license assigned to the user

Console.WriteLine(" IP address: " + KeyAuthApp.user_data.ip);

Console.WriteLine(" Hardware-Id: " + KeyAuthApp.user_data.hwid);

Console.WriteLine(" Created at: " + UnixTimeToDateTime(long.Parse(KeyAuthApp.user_data.createdate)));

if (!string.IsNullOrEmpty(KeyAuthApp.user_data.lastlogin)) // don't show last login on register since there is no last login at that point

Console.WriteLine(" Last login at: " + UnixTimeToDateTime(long.Parse(KeyAuthApp.user_data.lastlogin)));

Console.WriteLine(" Your subscription(s):");

for (var i = 0; i < KeyAuthApp.user_data.subscriptions.Count; i++)

{

Console.WriteLine(" Subscription name: " + KeyAuthApp.user_data.subscriptions[i].subscription + " - Expires at: " + UnixTimeToDateTime(long.Parse(KeyAuthApp.user_data.subscriptions[i].expiry)) + " - Time left in seconds: " + KeyAuthApp.user_data.subscriptions[i].timeleft);

}

Console.Write("\n [1] Enable 2FA\n [2] Disable 2FA\n Choose option: ");

int tfaOptions = int.Parse(Console.ReadLine());

switch (tfaOptions)

{

case 1:

KeyAuthApp.enable2fa();

break;

case 2:

Console.Write("Enter your 6 digit authorization code: ");

code = Console.ReadLine();

KeyAuthApp.disable2fa(code);

break;

default:

Console.WriteLine("\n\n Invalid Selection");

Thread.Sleep(2500);

TerminateProcess(GetCurrentProcess(), 1);

break; // no point in this other than to not get error from IDE

}

Console.WriteLine("\n Closing in five seconds...");

Thread.Sleep(-1);

Environment.Exit(0);

}

public static bool SubExist(string name)

{

if(KeyAuthApp.user_data.subscriptions.Exists(x => x.subscription == name))

return true;

return false;

}

public static DateTime UnixTimeToDateTime(long unixtime)

{

DateTime dtDateTime = new DateTime(1970, 1, 1, 0, 0, 0, 0, System.DateTimeKind.Local);

try

{

dtDateTime = dtDateTime.AddSeconds(unixtime).ToLocalTime();

}

catch

{

dtDateTime = DateTime.MaxValue;

}

return dtDateTime;

}

static void checkAtom()

{

Thread atomCheckThread = new Thread(() =>

{

while (true)

{

Thread.Sleep(60000); // give people 1 minute to login

ushort foundAtom = GlobalFindAtom(KeyAuthApp.ownerid);

if (foundAtom == 0)

{

TerminateProcess(GetCurrentProcess(), 1);

}

}

});

atomCheckThread.IsBackground = true; // Ensure the thread does not block program exit

atomCheckThread.Start();

}

static void securityChecks()

{

// check if the Loader was executed by a different program

var frames = new StackTrace().GetFrames();

foreach (var frame in frames)

{

MethodBase method = frame.GetMethod();

if (method != null && method.DeclaringType?.Assembly != Assembly.GetExecutingAssembly())

{

TerminateProcess(GetCurrentProcess(), 1);

}

}

// check if HarmonyLib is attempting to poison our program

var harmonyAssembly = AppDomain.CurrentDomain

.GetAssemblies()

.FirstOrDefault(a => a.GetName().Name == "0Harmony");

if (harmonyAssembly != null)

{

TerminateProcess(GetCurrentProcess(), 1);

}

checkAtom();

}

static void autoUpdate()

{

if (KeyAuthApp.response.message == "invalidver")

{

if (!string.IsNullOrEmpty(KeyAuthApp.app_data.downloadLink))

{

Console.WriteLine("\n Auto update avaliable!");

Console.WriteLine(" Choose how you'd like to auto update:");

Console.WriteLine(" [1] Open file in browser");

Console.WriteLine(" [2] Download file directly");

int choice = int.Parse(Console.ReadLine());

switch (choice)

{

case 1:

Process.Start(KeyAuthApp.app_data.downloadLink);

Environment.Exit(0);

break;

case 2:

Console.WriteLine(" Downloading file directly..");

Console.WriteLine(" New file will be opened shortly..");

WebClient webClient = new WebClient();

string destFile = Application.ExecutablePath;

string rand = random_string();

destFile = destFile.Replace(".exe", $"-{rand}.exe");

webClient.DownloadFile(KeyAuthApp.app_data.downloadLink, destFile);

Process.Start(destFile);

Process.Start(new ProcessStartInfo()

{

Arguments = "/C choice /C Y /N /D Y /T 3 & Del \"" + Application.ExecutablePath + "\"",

WindowStyle = ProcessWindowStyle.Hidden,

CreateNoWindow = true,

FileName = "cmd.exe"

});

Environment.Exit(0);

break;

default:

Console.WriteLine(" Invalid selection, terminating program..");

Thread.Sleep(1500);

Environment.Exit(0);

break;

}

}

Console.WriteLine("\n Status: Version of this program does not match the one online. Furthermore, the download link online isn't set. You will need to manually obtain the download link from the developer.");

Thread.Sleep(2500);

Environment.Exit(0);

}

}

static string random_string()

{

string str = null;

Random random = new Random();

for (int i = 0; i < 5; i++)

{

str += Convert.ToChar(Convert.ToInt32(Math.Floor(26 * random.NextDouble() + 65))).ToString();

}

return str;

}

}

}