private void HashPassword(User user)
{
FilterDefinition <User> filter;
// This means we are trying to authenticate the user
if (user.id == null && user.username != null)
{
filter = Builders <User> .Filter.Eq("username", user.username);
}
// If we are not authenticating the user, we want to check if the user already exists
// if not, create a new salt, otherwise use the existing salt
else
{
filter = Builders <User> .Filter.Eq("id", user.id);
}
User TempUser = collection.Find(filter).FirstOrDefault();
if (TempUser == null)
{
user.salt = HashService.CreateSalt();
}
else
{
// It is possible to reach this statement from UpdateUser method
// the user would still have a salt in the database, but it would not have been passed through JSON, so user.salt would be null
user.salt = TempUser.salt;
}
string PassSaltCombination = user.password + user.salt;
user.password = HashService.HashString(PassSaltCombination);
}