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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def gatekeeper(func):
 """ This function is used to handle authorization code authentication of protected endpoints. This form of authentication is not recommended because it's not very secure, but can be used in places where SSH tunneling or similar strong connection security is not possible. The function looks for a special "Cauldron-Authentication-Code" header in the request and confirms that the specified value matches the code that was provided by arguments to the Cauldron kernel server. This function acts as a pass-through if no code is specified when the server starts. """


    @wraps(func)
    def check_identity(*args, **kwargs):
        code = server_runner.authorization['code']
        comparison = request.headers.get('Cauldron-Authentication-Code')

        return (
            abort(401)
            if code and code != comparison else
            func(*args, **kwargs)
        )

    return check_identity