def download_backend_hostkey():
"""Get Bastio's backend SSH host key.
:returns:
:class:`bastio.ssh.crypto.RSAKey`
:raises:
:class:`bastio.excepts.BastioAccountError`
"""
errmsg = "get backend host key failed: "
response = __send_request('get', url=__download_hostkey_endpoint, verify=True)
if response.status_code != requests.codes.okay: # 200
raise BastioAccountError(errmsg + "unable to retrieve backend's host key")
public_key = response.json()['payload']
if not RSAKey.validate_public_key(public_key):
raise BastioAccountError(errmsg + "invalid host key")
return RSAKey.from_public_key(public_key)
def test_key_loading(self):
pubkey = self.key.get_public_key()
self.assertIsInstance(RSAKey.from_public_key(pubkey), RSAKey)
