'Method for authenticating user, auth db style
:param username:
The username or registered email address
:param password:
The password, will be tested against hashed password on db'

def auth_user_db(self, username, password):

    if ((username is None) or (username == '')):
        return None
    user = self.find_user(username=username)
    if (user is None):
        user = self.find_user(email=username)
    if ((user is None) or (not user.is_active())):
        log.info(LOGMSG_WAR_SEC_LOGIN_FAILED.format(username))
        return None
    elif check_password_hash(user.password, password):
        self.update_user_auth_stat(user, True)
        return user
    else:
        self.update_user_auth_stat(user, False)
        log.info(LOGMSG_WAR_SEC_LOGIN_FAILED.format(username))
        return None
