private void signUpBtn_Click(object sender, EventArgs e)
{
try
{
ctx = new UsefDataEF.UsersDBEntities();
ctx.LoginInformations.Load();
if (!checkData())
{
return;
}
revertColor();
byte[] salt = new HashGetter().getSalt();
UsefDataEF.LoginInformation newUser = new UsefDataEF.LoginInformation();
newUser.Username = UsernameTB.Text;
newUser.UserPassword = new HashGetter().getHash(PasswordTB.Text, salt);
newUser.UserSalt = salt;
newUser.UserEmail = emailTB.Text;
ctx.LoginInformations.Add(newUser);
ctx.SaveChanges();
MessageBox.Show("Successfully signed up!", "Success");
Close();
}
catch (Exception)
{
MessageBox.Show("Error signing up", "Error");
}
}
private void forgotPasswordBtn_Click(object sender, EventArgs e)
{
if (String.IsNullOrWhiteSpace(emailTB.Text))
{
emailTB.BackColor = Color.Red;
return;
}
UsefDataEF.UsersDBEntities ctx = new UsefDataEF.UsersDBEntities();
var query = from c in ctx.LoginInformations where c.UserEmail == emailTB.Text select c;
if (query.Any())
{
string username = query.First().Username;
string password = CreatePassword(12);
byte[] salt = new HashGetter().getSalt();
byte[] hashedPassword = new HashGetter().getHash(password, salt);
query.First().UserSalt = salt;
query.First().UserPassword = hashedPassword;
ctx.SaveChanges();
emailPassword(query.First().UserEmail, query.First().Username, password);
}
else
{
MessageBox.Show("No such E-mail address", "Error");
}
}
private void logInBtn_Click(object sender, EventArgs e)
{
if (String.IsNullOrWhiteSpace(LoginTB.Text) || String.IsNullOrWhiteSpace(PasswordTB.Text))
{
MessageBox.Show("Username and password are mandatory", "Invalid Data");
return;
}
UsefDataEF.UsersDBEntities ctx = new UsefDataEF.UsersDBEntities();
var query = from c in ctx.LoginInformations where c.Username == LoginTB.Text select c;
if (query.Count() == 0)
{
MessageBox.Show("No such user", "No user");
return;
}
byte[] salt = query.First().UserSalt;
byte[] hashedPass = new HashGetter().getHash(PasswordTB.Text, salt);
if (query.Where(c => c.UserPassword == hashedPass).Count() > 0)
{
success = true;
Close();
}
else
{
MessageBox.Show("Invalid username or password", "Error");
}
}
private void changePasswordBtn_Click(object sender, EventArgs e)
{
if (!checkData())
{
return;
}
revertColor();
var query = from c in ctx.LoginInformations select c;
byte[] salt = query.Where(c => c.Username == UsernameTB.Text).First().UserSalt;
byte[] hashedPassword = new HashGetter().getHash(oldPasswordTB.Text, salt);
var user = (from c in query where c.Username == UsernameTB.Text select c into z where z.UserPassword == hashedPassword select z);
if (user.Any())
{
byte[] newSalt = new HashGetter().getSalt();
byte[] newHashedPassword = new HashGetter().getHash(PasswordTB.Text, newSalt);
user.First().UserSalt = newSalt;
user.First().UserPassword = newHashedPassword;
ctx.SaveChanges();
MessageBox.Show("Password changed", "Success");
Close();
}
}