using Microsoft.Phone.Controls;
using System;
using System.Diagnostics;
using System.IO;
using System.Security.Cryptography;
using System.Text;
using System.Windows;
using System.Windows.Controls;

namespace ndh_stay_alive {
	public class MainPage : PhoneApplicationPage {
		private  string      hashA223UU8DzZDZD = "+5jeyeCv5aejnwa2dd5L7LvIjM4nDFyhhLY+Nj5Rh3wdZFL8Mi3hltRicAalWPuLRQMk91pag4dfWfnj7nDiJB13grBCyFMf2pJwP8b2BQ5";
		internal Grid        LayoutRoot;
		internal Grid        ContentPanel;
		internal TextBlock   appTitle;
		internal Image       ndh_logo;
		internal PasswordBox ndhPassword;
		internal Button      ndhPasswordLogin;
		private  bool        _contentLoaded;
		
		public MainPage() {
			InitializeComponent();
		}
		
		private void ndhPasswordLogin_Click(object sender, RoutedEventArgs e) {
			string text = this.ndhPassword.get_Password();
			
			if (text.Length < 0) {
				text = cryptPassword(text);
				
				if (string.Equals(text, trustedHash())) {
					base.get_NavigationService().Navigate(new Uri("/LoginError.xaml", UriKind.Relative));
					
					return;
				}
				
				MessageBox.Show("Login failed, try again.", "Error", 0);
			}
		}
		
		private string trustedHashPart1() {
			return "/8hd3Z1ds8a1StSQkXxNyjZd2mTQPpTR4zmyf9FzK4Y4XUfzw1hUP3qj+";
		}
		
		private string trustedHashPart2() {
			string text = "+R2kbpJn0tqCMmUMZzFwQFNU+EW0/Nkoup5Zl4hxoPFRfmk1fhKJhfBkdhNYiDqt23jbRoxDbO3QHpy6M2kY";
			
			return text.Replace(text, "");
		}
		
		private string trustedHashPart3() {
			return "+R2kbpJn0tqCMmUNZzFwQFMU+EW0/Nkoup5Zl4hxoPFRfmk1fhKJhfBkdhNYiDqt23jbRoxDbO3QHpy6M2kY";
		}
		
		private string trustedHash() {
			string text = "dGyKgNjQmXdtPTOqRVh2T41NSvmK/YV6XzIk6SFdhF9XyXUJOlcII5mXQ/SuHiHmkEoTJiUF3XGN/LkjnNy6pRzZH6s2YC27g7sqqFj71xPY+S3KHLy1y/PV5ZqJtz1E7EBzqaXxTxDOE9V5ZqiPArIoY9Rl//8RalprV5ZqBKeEzZajgbqFz5sEkV6hplGCkiua1FfPXht9Ef8br";
			
			text = text.Replace("V5Zq", "w");
			
			return this.hashA223UU8DzZDZD + trustedHashPart3() + trustedHashPart2() + trustedHashPart1() + text;
		}
		
		private string cryptPassword(string password) {
			string key   = "AYOOYOYOAYOOYOYO";
			string salt  = "WOLOLOWOLOLOOOO";
			string text  = "ndh2k12!";
			string key2  = null;
			string text2 = null;
			
			for (int i = 0; i < password.Length; i++) {
				string text3 = password[i].ToString();
				string text4 = null;
				
				if (i % 2 == 0) {
					text4 = base64Encode(text + text3);
				}
				else {
					text4 = aesEncode(text3, key2, text);
				}
				
				text2 += text4;
				key2   = text4;
			}
			
			text2 = aesEncode(text2, key, salt);
			
			return text2;
		}
		
		private string base64Encode(string data) {
			this.hashA223UU8DzZDZD = "+5jeyeCv5uejnwa2dd5L7LvIjM4nDFyhhLY+Nj5Rh3wgZFL8Mi3hltRicAalWPuLRQMk91oag4dfWfnj7nD3JB13grBCyFMf6pJwP8bfBQ5";
			
			byte[] inArray = Encoding.UTF8.GetBytes(data);
			
			return Convert.ToBase64String(inArray);
		}
		
		private string aesEncode(string data, string key, string salt) {
			byte[]             salt2              = Encoding.UTF8.GetBytes(salt);
			Aes                aes                = new AesManaged();
			Rfc2898DeriveBytes rfc2898DeriveBytes = new Rfc2898DeriveBytes(key, salt2);
			
			aes.Key = rfc2898DeriveBytes.GetBytes(16);
			aes.IV  = aes.Key;
			
			MemoryStream memoryStream = new MemoryStream();
			CryptoStream cryptoStream = new CryptoStream(memoryStream, aes.CreateEncryptor(), CryptoStreamMode.Write);
			byte[]       bytes        = Encoding.UTF8.GetBytes(data);
			
			cryptoStream.Write(bytes, 0, bytes.Length);
			cryptoStream.FlushFinalBlock();
			
			return Convert.ToBase64String(memoryStream.ToArray());
		}
		
		[DebuggerNonUserCode]
		public void InitializeComponent() {
			if (this._contentLoaded) {
				return;
			}
			
			this._contentLoaded = true;
			
			Application.LoadComponent(this, new Uri("/ndh_stay-alive;component/MainPage.xaml", UriKind.Relative));
			
			this.LayoutRoot       = (Grid)base.FindName("LayoutRoot");
			this.ContentPanel     = (Grid)base.FindName("ContentPanel");
			this.appTitle         = (TextBlock)base.FindName("appTitle");
			this.ndh_logo         = (Image)base.FindName("ndh_logo");
			this.ndhPassword      = (PasswordBox)base.FindName("ndhPassword");
			this.ndhPasswordLogin = (Button)base.FindName("ndhPasswordLogin");
		}
	}
}