private bool CheckValid(string username, string password)
{
//Convert input to MD5 hash
string hash = Encryption.GetMD5Hash(password);
bool valid = false;
//Read all users from file
List <User> users = DataUtilities.GetUsersFromDB();
foreach (User user in users)
{
if (user.Username.ToLower().Equals(username.ToLower()) && user.Password.Equals(hash))
{
valid = true;
loggedInUser = user;
}
}
return(valid);
}
private bool ValidateForm()
{
//Check all fields are filled
if (!AllFieldsFilled())
{
crdError.Visibility = Visibility.Visible;
lblError.Text = "Please complete all fields";
return(false);
}
//Check username isn't already used
if (DataUtilities.GetUsersFromDB().Any(u => u.Username.ToLower().Equals(txtUsername.Text.ToLower())))
{
crdError.Visibility = Visibility.Visible;
lblError.Text = "Username already taken";
return(false);
}
//Password must be at least 8 characters and have 1 uppercase and 1 lowercase and 1 digit
char[] passwordChars = txtPassword.Password.ToCharArray();
if (!(passwordChars.Length >= 8 && passwordChars.Where(c => Char.IsUpper(c)).ToList().Count >= 1 && passwordChars.Where(c => Char.IsLower(c)).ToList().Count >= 1 && passwordChars.Where(c => Char.IsDigit(c)).ToList().Count >= 1))
{
crdError.Visibility = Visibility.Visible;
lblError.Text = "Password must be at least 8 characters and contain 1 uppercase character, 1 lowercase character and 1 digit";
return(false);
}
//Check passwords match
if (!txtPassword.Password.Equals(txtConfirmPassword.Password))
{
crdError.Visibility = Visibility.Visible;
lblError.Text = "Passwords do not match";
return(false);
}
return(true);
}