Download the collection rules

def get_collection_rules(self, raw=False):
        """
        Download the collection rules
        """
        logger.debug("Attemping to download collection rules from %s",
                     self.collection_rules_url)

        net_logger.info("GET %s", self.collection_rules_url)
        try:
            req = self.conn.session.get(
                self.collection_rules_url, headers=({'accept': 'text/plain'}))

            if req.status_code == 200:
                logger.debug("Successfully downloaded collection rules")

                json_response = NamedTemporaryFile()
                json_response.write(req.text.encode('utf-8'))
                json_response.file.flush()
            else:
                logger.error("ERROR: Could not download dynamic configuration")
                logger.error("Debug Info: \nConf status: %s", req.status_code)
                logger.error("Debug Info: \nConf message: %s", req.text)
                return None
        except requests.ConnectionError as e:
            logger.error(
                "ERROR: Could not download dynamic configuration: %s", e)
            return None

        if self.gpg:
            self.get_collection_rules_gpg(json_response)

        self.write_collection_data(self.collection_rules_file, req.text)

        if raw:
            return req.text
        else:
            return json.loads(req.text)