##
-# Implements GENI GID. GIDs are based on certificates, and the GID class is a
+# Implements SFA GID. GIDs are based on certificates, and the GID class is a
# descendant of the certificate class.
##
### $URL$
import xmlrpclib
-
import uuid
from sfa.trust.certificate import Certificate
+from sfa.util.namespace import *
+from sfa.util.sfalogging import logger
##
# Create a new uuid. Returns the UUID as a string.
return str(uuid.uuid4().int)
##
-# GID is a tuplie:
-# (uuid, hrn, public_key)
+# GID is a tuple:
+# (uuid, urn, public_key)
#
# UUID is a unique identifier and is created by the python uuid module
# (or the utility function create_uuid() in gid.py).
# HRN is a human readable name. It is a dotted form similar to a backward domain
# name. For example, planetlab.us.arizona.bakers.
#
+# URN is a human readable identifier of form:
+# "urn:publicid:IDN+toplevelauthority[:sub-auth.]*[\res. type]\ +object name"
+# For example, urn:publicid:IDN+planetlab:us:arizona+user+bakers
+#
# PUBLIC_KEY is the public key of the principal identified by the UUID/HRN.
# It is a Keypair object as defined in the cert.py module.
#
class GID(Certificate):
uuid = None
hrn = None
+ urn = None
##
# Create a new GID object
# @param string If string!=None, load the GID from a string
# @param filename If filename!=None, load the GID from a file
- def __init__(self, create=False, subject=None, string=None, filename=None, uuid=None, hrn=None):
+ def __init__(self, create=False, subject=None, string=None, filename=None, uuid=None, hrn=None, urn=None):
+
Certificate.__init__(self, create, subject, string, filename)
+ if subject:
+ logger.info("subject: %s" % subject)
if uuid:
- self.uuid = uuid
+ self.uuid = int(uuid)
if hrn:
self.hrn = hrn
+ self.urn = hrn_to_urn(hrn, 'unknown')
+ if urn:
+ self.urn = urn
+ self.hrn, type = urn_to_hrn(urn)
def set_uuid(self, uuid):
- self.uuid = uuid
+ if isinstance(uuid, str):
+ self.uuid = int(uuid)
+ else:
+ self.uuid = uuid
def get_uuid(self):
if not self.uuid:
self.decode()
return self.hrn
+ def set_urn(self, urn):
+ self.urn = urn
+ self.hrn, type = urn_to_hrn(urn)
+
+ def get_urn(self):
+ if not self.urn:
+ self.decode()
+ return self.urn
+
+ def get_type(self):
+ if not self.urn:
+ self.decode()
+ _, t = urn_to_hrn(self.urn)
+ return t
+
##
# Encode the GID fields and package them into the subject-alt-name field
# of the X509 certificate. This must be called prior to signing the
# certificate. It may only be called once per certificate.
def encode(self):
- dict = {"uuid": self.uuid,
- "hrn": self.hrn}
- str = xmlrpclib.dumps((dict,))
- self.set_data(str)
+ if self.urn:
+ urn = self.urn
+ else:
+ urn = hrn_to_urn(self.hrn, None)
+
+ str = "URI:" + urn
+
+ if self.uuid:
+ str += ", " + "URI:" + uuid.UUID(int=self.uuid).urn
+
+ self.set_data(str, 'subjectAltName')
+
+
+
##
# Decode the subject-alt-name field of the X509 certificate into the
# functions in this class.
def decode(self):
- data = self.get_data()
+ data = self.get_data('subjectAltName')
+ dict = {}
if data:
- dict = xmlrpclib.loads(self.get_data())[0][0]
- else:
- dict = {}
-
+ if data.lower().startswith('uri:http://<params>'):
+ dict = xmlrpclib.loads(data[11:])[0][0]
+ else:
+ spl = data.split(', ')
+ for val in spl:
+ if val.lower().startswith('uri:urn:uuid:'):
+ dict['uuid'] = uuid.UUID(val[4:]).int
+ elif val.lower().startswith('uri:urn:publicid:idn+'):
+ dict['urn'] = val[4:]
+
self.uuid = dict.get("uuid", None)
- self.hrn = dict.get("hrn", None)
+ self.urn = dict.get("urn", None)
+ self.hrn = dict.get("hrn", None)
+ if self.urn:
+ self.hrn = urn_to_hrn(self.urn)[0]
##
# Dump the credential to stdout.
def dump(self, indent=0, dump_parents=False):
print " "*indent, " hrn:", self.get_hrn()
+ print " "*indent, " urn:", self.get_urn()
print " "*indent, "uuid:", self.get_uuid()
if self.parent and dump_parents:
print " "*indent, "parent:"
- self.parent.dump(indent+4)
+ self.parent.dump(indent+4, dump_parents)
##
# Verify the chain of authenticity of the GID. First perform the checks
def verify_chain(self, trusted_certs = None):
# do the normal certificate verification stuff
- Certificate.verify_chain(self, trusted_certs)
-
+ trusted_root = Certificate.verify_chain(self, trusted_certs)
+
if self.parent:
# make sure the parent's hrn is a prefix of the child's hrn
if not self.get_hrn().startswith(self.parent.get_hrn()):
raise GidParentHrn(self.parent.get_subject())
+ else:
+ # make sure that the trusted root's hrn is a prefix of the child's
+ trusted_gid = GID(string=trusted_root.save_to_string())
+ trusted_hrn = trusted_gid.get_hrn()
+ cur_hrn = self.get_hrn()
+ if not self.get_hrn().startswith(trusted_hrn):
+ raise GidParentHrn(trusted_hrn + " " + self.get_hrn())
return
git://git.onelab.eu / sfa.git / blobdiff