client.py 文件源码

def get_certificate_chain(self, certificate):
        cert = requests.get(certificate)
        if cert.status_code != 200:
            raise ClientError('Certificate fetch failed: {}'.format(
                                                        cert.json()['detail']))

        if 'up' not in cert.links:
            return

        chain_url = urllib.parse.urljoin(certificate, cert.links['up']['url'])
        chain = requests.get(chain_url)
        if chain.status_code != 200:
            raise ClientError('Certificate chain fetch failed: {}'.format(
                                                        cert.json()['detail']))

        return x509.load_der_x509_certificate(chain.content, backend)