decorator.py 文件源码

def contains_payment(self, price, request_headers, **kwargs):
        """Validate the payment information received in the request headers.

        Args:
            price (int): The price the user must pay for the resource.
            request_headers (dict): Headers sent by client with their request.
            keyword args: Any other headers needed to verify payment.
        Returns:
            (bool): True if payment is valid,
                False if no payment attached (402 initiation).
        Raises:
            ParseError: If request is malformed.
        """
        for method in self.allowed_methods:
            if method.should_redeem(request_headers):
                try:
                    v = method.redeem_payment(price, request_headers, **kwargs)
                except Exception as e:
                    raise ParseError(str(e))
                return v
        return False