Massive redlining of PolicyGroup.

nkms/policy/models.py

@@ -115,62 +115,6 @@ class PolicyManagerForAlice(PolicyManager):
         return policy
 
 
-class PolicyGroup(object):
-    """
-    The terms and conditions by which Alice shares with Bob.
-    """
-
-    _id = None
-
-    def __init__(self, uri: bytes, alice: Alice, bob: Bob, policies=None) -> None:
-        self.policies = policies or []
-        self.alice = alice
-        self.bob = bob
-        self.uri = uri
-
-
-    @staticmethod
-    def hash(message):
-        return keccak_digest(message)
-
-    # TODO: This is a stand-in; remove it.
-    @property
-    def pfrag(self):
-        return self.policies[0].pfrag
-
-    def treasure_map_dht_key(self):
-        """
-        We need a key that Bob can glean from knowledge he already has *and* which Ursula can verify came from us.
-        Ursula will refuse to propagate this key if it she can't prove that our public key, which is included in it,
-        was used to sign the payload.
-
-        Our public key (which everybody knows) and the hrac above.
-        """
-        return self.hash(bytes(self.alice.seal) + self.hrac())
-
-    @property
-    def id(self):
-        if not self._id:
-            self._id = api.keccak_digest(bytes(self.alice.seal), api.keccak_digest(self.uri))
-        return self._id
-
-    def publish_treasure_map(self):
-        encrypted_treasure_map, signature_for_bob = self.alice.encrypt_for(self.bob,
-                                                                           self.treasure_map.packed_payload())
-        signature_for_ursula = self.alice.seal(self.hrac())  # TODO: Great use-case for Ciphertext class
-
-        # In order to know this is safe to propagate, Ursula needs to see a signature, our public key,
-        # and, reasons explained in treasure_map_dht_key above, the uri_hash.
-        dht_value = signature_for_ursula + self.alice.seal + self.hrac() + msgpack.dumps(
-            encrypted_treasure_map)  # TODO: Ideally, this is a Ciphertext object instead of msgpack (see #112)
-        dht_key = self.treasure_map_dht_key()
-
-        setter = self.alice.server.set(dht_key, b"trmap" + dht_value)
-        event_loop = asyncio.get_event_loop()
-        event_loop.run_until_complete(setter)
-        return encrypted_treasure_map, dht_value, signature_for_bob, signature_for_ursula
-
-
 class Policy(object):
     """
     An individual agreement between Alice and Ursula.  Together, all of the Policies by which