public void ValidateInput(string username, string password)
{
if (!RegistryData.GetUsernames().Contains(username))
{
throw new InvalidUsernameException(GlobalMessages.NonExistingUser);
}
string hashedPassword = RegistryData.GetUserPassword(username);
string currentPasswordHash = HashUtilities.HashPassword(password);
if (hashedPassword != currentPasswordHash)
{
throw new InvalidPasswordLenghtException(GlobalMessages.IncorectPassword);
}
}
private void changeButton_Click(object sender, EventArgs e)
{
this.oldPassLabel.Visible = false;
this.newPassLabel.Visible = false;
string currentPassword = this.oldPasswordTextBox.Text;
string currentPasswordHash = HashUtilities.HashPassword(currentPassword);
string hashedPassword = RegistryData.GetUserPassword(this.User.Username);
if (currentPasswordHash == hashedPassword)
{
try
{
ValidateNewPassword(this.newPassTextBox.Text, this.confirmNewPassTextBox.Text);
string oldEncryptedData = RegistryData.GetUserData(this.User.Username);
string oldDecryptedData = CryptographicUtilities.Decrypt(oldEncryptedData, this.User.Key);
string newPassword = HashUtilities.HashPassword(this.newPassTextBox.Text);
byte[] newKey = HashUtilities.HashKey(this.newPassTextBox.Text);
string newData = CryptographicUtilities.Encrypt(oldDecryptedData, newKey);
RegistryData.SetNewPassword(this.User.Username, newPassword);
RegistryData.SetUserData(this.User.Username, newData);
this.User.SetNewKey(newKey);
MetroMessageBox.Show(this.MainForm, string.Empty, GlobalMessages.PasswordChanged
, MessageBoxButtons.OK, MessageBoxIcon.Information, 80);
this.Swipe(false);
}
catch (InvalidPasswordLenghtException ipe)
{
this.newPassLabel.Text = ipe.Message;
this.newPassLabel.Visible = true;
}
catch (PasswordMismatchException pme)
{
this.newPassLabel.Text = pme.Message;
this.newPassLabel.Visible = true;
}
}
else
{
this.oldPassLabel.Text = GlobalMessages.InvalidPassword;
this.oldPassLabel.Visible = true;
}
}
private void deleteButton_Click(object sender, EventArgs e)
{
this.passwordLabel.Visible = false;
if (!string.IsNullOrWhiteSpace(this.passwordTextBox.Text))
{
string hashedPass = HashUtilities.HashPassword(this.passwordTextBox.Text);
if (hashedPass == RegistryData.GetUserPassword(this.User.Username))
{
RegistryData.DeleteAccout(this.User.Username);
MetroMessageBox.Show(this.MainForm, string.Empty, GlobalMessages.AccountDeleted
, MessageBoxButtons.OK, MessageBoxIcon.Information, 80);
this.Swipe(false);
this.userPanel.Logout();
}
else
{
this.passwordLabel.Visible = true;
}
}
}
