private void createUserButton_Click(object sender, EventArgs e)
{
string createdUsername = username.Text;
string createdPassword = password.Text;
// Check if the username already exists
try
{
var matchingUserTable = dataManager
.Execute($"SELECT * FROM LoginInfo WHERE username = '******'");
if (matchingUserTable.Rows.Count != 0)
{
MessageBox.Show("That username already exists.");
return;
}
}
catch (InvalidOperationException exception)
{
Console.WriteLine(exception.Message);
MessageBox.Show("Something went wrong.");
return;
}
// Validate username and password
if (createdUsername == "" || createdPassword == "")
{
// Not enough data; exit
MessageBox.Show("One of the fields is empty.");
return;
}
else if (!PasswordVerifier.IsValidPassword(createdPassword))
{
// Invalid password; exit
MessageBox.Show("Password must be at least 8 characters and contain at least one number.");
return;
}
// Hash the password for storage
String hashedPassword = BCrypt.HashPassword(createdPassword, BCrypt.GenerateSalt());
// Add user to database
try
{
String query = "INSERT INTO LoginInfo (username, password) " +
"VALUES ('" + createdUsername + "', '" + hashedPassword + "')";
dataManager.Execute(query);
MessageBox.Show("Login credentials added:\n" + createdUsername + "\n" + hashedPassword);
username.Text = "";
password.Text = "";
}
catch (InvalidOperationException exception)
{
Console.WriteLine(exception.Message);
MessageBox.Show("Fatal Error: Something went wrong. Try again");
}
}