def hasDataContext():
import geni._coreutil as GCU
path = GCU.getDefaultContextPath()
return os.path.exists(path)
def loadContext(path=None, key_passphrase=None):
import geni._coreutil as GCU
from geni.aggregate import FrameworkRegistry
from geni.aggregate.context import Context
from geni.aggregate.user import User
if path is None:
path = GCU.getDefaultContextPath()
else:
path = os.path.expanduser(path)
obj = json.load(open(path, "r"))
version = _getdefault(obj, "version", 1)
if key_passphrase is True:
import getpass
key_passphrase = getpass.getpass("Private key passphrase: ")
if version == 1:
cf = FrameworkRegistry.get(obj["framework"])()
cf.cert = obj["cert-path"]
if key_passphrase:
if six.PY3:
key_passphrase = bytes(key_passphrase, "utf-8")
cf.setKey(obj["key-path"], key_passphrase)
else:
cf.key = obj["key-path"]
user = User()
user.name = obj["user-name"]
user.urn = obj["user-urn"]
user.addKey(obj["user-pubkeypath"])
context = Context()
context.addUser(user)
context.cf = cf
context.project = obj["project"]
context.path = path
elif version == 2:
context = Context()
fobj = obj["framework-info"]
cf = FrameworkRegistry.get(fobj["type"])()
cf.cert = fobj["cert-path"]
if key_passphrase:
cf.setKey(fobj["key-path"], key_passphrase)
else:
cf.key = fobj["key-path"]
context.cf = cf
context.project = fobj["project"]
context.path = path
ulist = obj["users"]
for uobj in ulist:
user = User()
user.name = uobj["username"]
user.urn = _getdefault(uobj, "urn", None)
klist = uobj["keys"]
for keypath in klist:
user.addKey(keypath)
context.addUser(user)
from cryptography import x509
from cryptography.hazmat.backends import default_backend
cert = x509.load_pem_x509_certificate(
open(context._cf.cert, "rb").read(), default_backend())
if cert.not_valid_after < datetime.datetime.now():
print(
"***WARNING*** Client SSL certificate supplied in this context is expired"
)
return context