/// <summary>
/// Checks whether the user exists with given information. If a password
/// is not provided and results false: the username exists in database.
/// If a password is provided and results false: there was an information
/// mismatch.
///
/// Created by: Trent Cullinan 03/25/16
/// </summary>
/// <param name="userName">Value to check database.</param>
/// <param name="password">Value to check database.</param>
/// <returns>Whether user has given correct information to be available.</returns>
public bool ConfirmUserExists(string userName, string password = null)
{
bool flag = true;
bool passwordFlag = String.IsNullOrEmpty(password);
try
{
flag = passwordFlag ?
UserAccessor.CheckUserName(userName) :
UserAccessor.CheckUserNameWithPassword(userName, password.HashSha256());
}
catch (Exception)
{
// If no password is sent in and an exception is caught, set to true
// to signal that it is unavailable.
// If a passsword is sent in and an exception is caught, set to false
// to signal that nothing matched.
flag = passwordFlag;
}
return(flag);
}
