public bool?AuthenticateUser(String userName, String password)
{
if (!this.usersCredentials.ContainsKey(userName))
{
return(null);
}
return(Sec.hash_and_compare(password, usersCredentials[userName]));
}
public bool AddUser(String userName, String password)
{
if (this.usersCredentials.ContainsKey(userName))
{
return(false);
}
usersCredentials[userName] = Sec.hash(password);
return(true);
}
public void StoreData()
{
string s = JsonConvert.SerializeObject(this.Data, Formatting.None, new JsonSerializerSettings
{
TypeNameHandling = TypeNameHandling.Auto
}).Trim();
s = Sec.encrypt(s, DataSupervisor.ds.userPasswrd);
File.WriteAllText(this.WorkingFile, s);
}
public void StoreData()
{
string saveData = JsonConvert.SerializeObject(this.Data, Formatting.Indented, new JsonSerializerSettings()
{
TypeNameHandling = TypeNameHandling.Auto,
});
string encrypted = Sec.encrypt(saveData, DataSupervisor.ds.userPasswrd);
File.WriteAllText(this.WorkingFile, encrypted);
}
public void SaveUserProfile()
{
String userDirectory = Environment.CurrentDirectory + $"\\Data\\{this.user.userName}";
if (!Directory.Exists(userDirectory))
{
Directory.CreateDirectory(userDirectory);
}
String rawJSON = JsonConvert.SerializeObject(this.user);
String encryptedJSON = Sec.encrypt(rawJSON, DataSupervisor.ds.userPasswrd);
File.WriteAllText(userDirectory + "\\userProfile.json", encryptedJSON);
}
private static String IP = "127.0.0.1"; //"192.168.43.162"; // IP ADDRESS OR DOMAIN NAME
private static bool alive()
{
try
{
byte[] data = Encoding.ASCII.GetBytes(Sec.encrypt("PING", Sec.dh_secret));
stream.Write(data, 0, data.Length);
w.Flush();
if (Sec.decrypt(r.ReadLine(), Sec.dh_secret) == "PONG")
{
return(true);
}
return(false);
}
catch (Exception)
{
return(false);
}
}
// Loads the user profile data from its corresponding file
private void LoadUserProfile(String username)
{
string dataPath = this.currentUserDataPath + @"\userProfile.json";
if (this.user != null)
{
return;
}
if (File.Exists(dataPath))
{
String rawJSON = "{}";
String decryptedJSON = "{}";
rawJSON = File.ReadAllText(dataPath).Trim();
if (rawJSON == "")
{
decryptedJSON = "{}";
}
else
{
decryptedJSON = Sec.decrypt(rawJSON, DataSupervisor.ds.userPasswrd);
}
this.user = JsonConvert.DeserializeObject <User>(decryptedJSON);
}
}
private static void main()
{
while (true)
{
try
{
c = new TcpClient(IP, 1337);
Thread.Sleep(2000);
setConnected(c.Connected);
setStream(c.GetStream());
setReader(new StreamReader(stream));
setWriter(new StreamWriter(stream));
Sec.dh(stream, r, w); // diffie hellman
while (true)
{
if (!alive() || disconnect_requested)
{
disconnect_requested = false;
throw new SocketException();
}
if (IsPendingData())
{
String enc = Sec.encrypt(getPendingData(), Sec.dh_secret);
//MessageBox.Show(enc);
byte[] data = Encoding.ASCII.GetBytes(enc);
stream.Write(data, 0, data.Length);
w.Flush();
if (Sec.decrypt(r.ReadLine(), Sec.dh_secret) == "ACK")
{
// MessageBox.Show("ACK"); message recu :D
clearPendingData();
}
else
{
// MessageBox.Show("NAK"); message non recu, reessayer l'envoi
}
}
Thread.Sleep(2000);
}
}
catch (SocketException)
{
connected = false;
if (r != null)
{
r.Dispose();
}
if (w != null)
{
w.Dispose();
}
if (stream != null)
{
stream.Dispose();
}
if (c != null)
{
c.Dispose();
}
//MessageBox.Show("disconnected : " + e.Message);
}
}
}
public void ChangePassword(String username, String password)
{
this.usersCredentials[username] = Sec.hash(password);
}
