/usr/lib/python3/dist-packages/saml2/eptid.py is in python3-pysaml2 3.0.0-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | # An eduPersonTargetedID comprises
# the entity name of the identity provider, the entity name of the service
# provider, and a opaque string value.
# These strings are separated by "!" symbols. This form is advocated by
# Internet2 and may overtake the other form in due course.
import hashlib
import shelve
import logging
import six
logger = logging.getLogger(__name__)
class Eptid(object):
def __init__(self, secret):
self._db = {}
self.secret = secret
def make(self, idp, sp, args):
md5 = hashlib.md5()
for arg in args:
md5.update(arg.encode("utf-8"))
if isinstance(sp, six.binary_type):
md5.update(sp)
else:
md5.update(sp.encode('utf-8'))
if isinstance(self.secret, six.binary_type):
md5.update(self.secret)
else:
md5.update(self.secret.encode('utf-8'))
md5.digest()
hashval = md5.hexdigest()
if isinstance(hashval, six.binary_type):
hashval = hashval.decode('ascii')
return "!".join([idp, sp, hashval])
def __getitem__(self, key):
if six.PY3 and isinstance(key, six.binary_type):
key = key.decode('utf-8')
return self._db[key]
def __setitem__(self, key, value):
if six.PY3 and isinstance(key, six.binary_type):
key = key.decode('utf-8')
self._db[key] = value
def get(self, idp, sp, *args):
# key is a combination of sp_entity_id and object id
key = ("__".join([sp, args[0]])).encode("utf-8")
try:
return self[key]
except KeyError:
val = self.make(idp, sp, args)
self[key] = val
return val
class EptidShelve(Eptid):
def __init__(self, secret, filename):
Eptid.__init__(self, secret)
if six.PY3:
if filename.endswith('.db'):
filename = filename.rsplit('.db', 1)[0]
self._db = shelve.open(filename, writeback=True, protocol=2)
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