//NIEUWE USER REGISTREREN
private void btnRegister_Click_1(object sender, EventArgs e)
{
//Registratievenster opent
FormRegister rf = new FormRegister(this);
rf.ShowDialog();
//Als user succesvol gemaakt is (in registratievenster), verschijnt deze tekst in label
if (userCreated)
{
lblNotification.ForeColor = Color.Green;
lblNotification.Font = new Font(lblNotification.Font, FontStyle.Bold);
lblNotification.Text = "The user is created successfully!";
}
//Als max aantal users bereikt is, verschijnt deze tekst
CountUsers();
if (maxUsersReached)
{
btnRegister.Enabled = false;
lblNote.Visible = true;
lblNote2.Visible = true;
}
//Textboxes worden terug leeggemaakt
txtUsername.Clear();
txtPassword.Clear();
}
private void btnDelete_Click(object sender, EventArgs e)
{
string username = txtUsername.Text;
string password = txtPassword.Text;
bool userExists = false;
string salt = "";
string hashedPassword = "";
string hashControl = "";
try
{
//user.login-file openen en lijn inlezen
input = File.OpenText(path + "/user.login");
line = input.ReadLine();
char separator = ',';
string[] words;
//salt en hash bepalen van users in bestand
while (line != null && !userExists)
{
lineCounter++;
words = line.Split(separator);
if (words[0] == username)
{
userExists = true;
salt = words[1];
hashedPassword = words[2];
byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
byte[] saltBytes = Encoding.UTF8.GetBytes(salt);
hashControl = PasswordStorage.HashPassword(passwordBytes, saltBytes, 50000); //Maakt nieuwe hash om te controleren
}
else
{
line = input.ReadLine();
}
input.Close();
}
}
catch (IOException)
{
MessageBox.Show("Close the 'user.login'-file before logging in.", "'user.login'-file is open.");
return;
}
if (!userExists)
{
lbl1.Text = "This user does not exist.";
lbl2.Text = "";
return;
}
if (hashedPassword != hashControl)
{
lbl1.Text = "The password is incorrect.";
lbl2.Text = "";
return;
}
else
{
DeleteUser(username);
FormRegister regForm = new FormRegister(lf);
regForm.Show();
this.Hide();
}
}