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"""Constants and functions for data used in interoperability testing."""

import os

import pkg_resources

_ROOT_CERTIFICATES_RESOURCE_PATH = 'credentials/ca.pem'
_PRIVATE_KEY_RESOURCE_PATH = 'credentials/server1.key'
_CERTIFICATE_CHAIN_RESOURCE_PATH = 'credentials/server1.pem'


def test_root_certificates():
  return pkg_resources.resource_string(
      __name__, _ROOT_CERTIFICATES_RESOURCE_PATH)


def prod_root_certificates():
  return open(os.environ['SSL_CERT_FILE'], mode='rb').read()


def private_key():
  return pkg_resources.resource_string(__name__, _PRIVATE_KEY_RESOURCE_PATH)


def certificate_chain():
  return pkg_resources.resource_string(
      __name__, _CERTIFICATE_CHAIN_RESOURCE_PATH)