private void passwordTxt_TextChanged(object sender, EventArgs e)
{
var passGen = new PasswordGenerator();
strength = passGen.DetermineStrength(passwordTxt.Text.ToString());
passwordStrengthLbl.Text = "Password Strength: " + strength.ToString(); //dynamically update the strength of the password
if (retypedPassTxt.Text != "")
{
passwordsMatchTxt.Text = passwordTxt.Text == retypedPassTxt.Text ? "Passwords match" : "Passwords do not match";
}
}
private void btnSave_Click(object sender, EventArgs e)
{
//validate the new password
if (newPassDupeTxt.Text == "" || newPassTxt.Text == "" || oldPassTxt.Text == "") //first, we check that the user has entered data
{
MessageBox.Show("All fields must contain data", "Error", MessageBoxButtons.OK);
}
else if (newPassTxt.Text != newPassDupeTxt.Text)
{
MessageBox.Show("Passwords do not match", "Error", MessageBoxButtons.OK); //secondly, we check the newly entered password is matched in the duplicated input box
}
else if (oldPassTxt.Text != user.Password) //third, we check that the password was correct
{
passAttempts++; //increment the number of attempts the password has been attempted
MessageBox.Show("Old password is incorrect.", "Error", MessageBoxButtons.OK);
if (passAttempts == 3) //if the password attempts is 3, then we exit the system
{
MessageBox.Show("Password has been entered incorrectly 3 times. System will log out");
this.Hide();
var login = new Login();
login.Show();
}
}
else if (newPassTxt.Text == user.Password) //check that the new password does not equal the users current password
{
MessageBox.Show("The new password is the same as the old password.", "Error", MessageBoxButtons.OK);
}
else if (user.Details != null)
{
if (user.Details.FirstName == newPassTxt.Text || user.Details.MiddleNames == newPassTxt.Text || user.Details.LastName == newPassTxt.Text)
{
MessageBox.Show("Password should not match any of your names, as that is not a strong password", "Invalid Password", MessageBoxButtons.OK);
}
else if (newPassTxt.Text.Contains(user.Details.FirstName) || newPassTxt.Text.Contains(user.Details.MiddleNames) || newPassTxt.Text.Contains(user.Details.LastName))
{
MessageBox.Show("Password should not match or contain any of your names, as that is not a strong password", "Invalid Password", MessageBoxButtons.OK);
}
}
else if (user.GuineaPigData != null)
{
if (user.GuineaPigData.Name == newPassTxt.Text)
{
MessageBox.Show("Password should not match any of your guinea pig's name, as that is not a strong password", "Invalid Password", MessageBoxButtons.OK);
}
else if (newPassTxt.Text.Contains(user.GuineaPigData.Name))
{
MessageBox.Show("Password should not match or contain your guinea pig's name, as that is not a strong password", "Invalid Password", MessageBoxButtons.OK);
}
}
else if (gen.DetermineStrength(newPassTxt.Text) == PasswordStrength.Weak) //check the password strength
{
MessageBox.Show("Password is too weak to be saved.", "Invalid Password", MessageBoxButtons.OK);
}
else if (gen.CheckPasswordSimilarities(user.Password, newPassTxt.Text) > 10) //ensure the password is not similar to the old password
{
MessageBox.Show("Password is too similar to the previous password.", "Invalid Password", MessageBoxButtons.OK);
}
else if (passService.CheckPasswords(user.Username, newPassTxt.Text)) //check that the password has not been used before
{
MessageBox.Show("This password has been used before and it cannot be used again.", "Invalid Password", MessageBoxButtons.OK);
}
else
{
//if user passes all validation, we can change the password
user.Password = newPassTxt.Text;
if (passGenCheck.Checked) //if the password was generated, we need to save it to a file
{
gen.SavePasswordToFile(newPassTxt.Text, user.Username);
}
service.UpdateUser(user); //we can then update the user
passService.Update(user.Username, newPassTxt.Text); //update the password archive and then return to the mainUI
MessageBox.Show("Password was changed", "Password Updated", MessageBoxButtons.OK);
this.Hide();
var previousForm = new MainUI(user.Id);
previousForm.Show();
}
}