def test_retrieve_cfrags(federated_porter,
federated_porter_rpc_controller,
enacted_federated_policy,
federated_bob,
federated_alice,
random_federated_treasure_map_data):
method = 'retrieve_cfrags'
# Setup
retrieve_cfrags_params, _ = retrieval_request_setup(enacted_federated_policy,
federated_bob,
federated_alice,
encode_for_rest=True)
# Success
request_data = {'method': method, 'params': retrieve_cfrags_params}
response = federated_porter_rpc_controller.send(request_data)
assert response.success
retrieval_results = response.data['result']['retrieval_results']
assert retrieval_results
# expected results - can only compare length of results, ursulas are randomized to obtain cfrags
retrieve_args = retrieval_params_decode_from_rest(retrieve_cfrags_params)
expected_results = federated_porter.retrieve_cfrags(**retrieve_args)
assert len(retrieval_results) == len(expected_results)
# Failure - use encrypted treasure map
failure_retrieve_cfrags_params = dict(retrieve_cfrags_params)
_, random_treasure_map = random_federated_treasure_map_data
failure_retrieve_cfrags_params['treasure_map'] = b64encode(bytes(random_treasure_map)).decode()
request_data = {'method': method, 'params': failure_retrieve_cfrags_params}
with pytest.raises(InvalidInputData):
federated_porter_rpc_controller.send(request_data)
def test_retrieve_cfrags(blockchain_porter, blockchain_porter_rpc_controller,
random_blockchain_policy, blockchain_bob,
blockchain_alice):
method = 'retrieve_cfrags'
# Setup
network_middleware = MockRestMiddleware()
# enact new random policy since idle_blockchain_policy/enacted_blockchain_policy already modified in previous tests
enacted_policy = random_blockchain_policy.enact(
network_middleware=network_middleware)
retrieve_cfrags_params, _ = retrieval_request_setup(enacted_policy,
blockchain_bob,
blockchain_alice,
encode_for_rest=True)
# Success
request_data = {'method': method, 'params': retrieve_cfrags_params}
response = blockchain_porter_rpc_controller.send(request_data)
assert response.success
retrieval_results = response.data['result']['retrieval_results']
assert retrieval_results
# expected results - can only compare length of results, ursulas are randomized to obtain cfrags
retrieve_args = retrieval_params_decode_from_rest(retrieve_cfrags_params)
expected_results = blockchain_porter.retrieve_cfrags(**retrieve_args)
assert len(retrieval_results) == len(expected_results)
# Failure - use encrypted treasure map
failure_retrieve_cfrags_params = dict(retrieve_cfrags_params)
failure_retrieve_cfrags_params['treasure_map'] = b64encode(
os.urandom(32)).decode()
request_data = {'method': method, 'params': failure_retrieve_cfrags_params}
with pytest.raises(InvalidInputData):
blockchain_porter_rpc_controller.send(request_data)
def test_retrieve_cfrags(blockchain_porter, blockchain_porter_web_controller,
random_blockchain_policy, blockchain_bob,
blockchain_alice):
# Send bad data to assert error return
response = blockchain_porter_web_controller.post('/retrieve_cfrags',
data=json.dumps(
{'bad': 'input'}))
assert response.status_code == 400
# Setup
network_middleware = MockRestMiddleware()
# enact new random policy since idle_blockchain_policy/enacted_blockchain_policy already modified in previous tests
enacted_policy = random_blockchain_policy.enact(
network_middleware=network_middleware)
original_message = b"Those who say it can't be done are usually interrupted by others doing it." # - James Baldwin
retrieve_cfrags_params, message_kit = retrieval_request_setup(
enacted_policy,
blockchain_bob,
blockchain_alice,
original_message=original_message,
encode_for_rest=True)
#
# Success
#
response = blockchain_porter_web_controller.post(
'/retrieve_cfrags', data=json.dumps(retrieve_cfrags_params))
assert response.status_code == 200
response_data = json.loads(response.data)
retrieval_results = response_data['result']['retrieval_results']
assert retrieval_results
# expected results - can only compare length of results, ursulas are randomized to obtain cfrags
retrieve_args = retrieval_params_decode_from_rest(retrieve_cfrags_params)
expected_results = blockchain_porter.retrieve_cfrags(**retrieve_args)
assert len(retrieval_results) == len(expected_results)
# check that the re-encryption performed was valid
treasure_map = retrieve_args['treasure_map']
policy_message_kit = PolicyMessageKit.from_message_kit(
message_kit=message_kit,
policy_encrypting_key=enacted_policy.public_key,
threshold=treasure_map.threshold)
assert len(retrieval_results) == 1
field = RetrievalResultSchema()
cfrags = field.load(retrieval_results[0])['cfrags']
verified_cfrags = {}
for ursula, cfrag in cfrags.items():
# need to obtain verified cfrags (verified cfrags are not deserializable, only non-verified cfrags)
verified_cfrag = cfrag.verify(
capsule=policy_message_kit.message_kit.capsule,
verifying_pk=blockchain_alice.stamp.as_umbral_pubkey(),
delegating_pk=enacted_policy.public_key,
receiving_pk=blockchain_bob.public_keys(DecryptingPower))
verified_cfrags[ursula] = verified_cfrag
retrieval_result_object = RetrievalResult(cfrags=verified_cfrags)
policy_message_kit = policy_message_kit.with_result(
retrieval_result_object)
assert policy_message_kit.is_decryptable_by_receiver()
cleartext = blockchain_bob._crypto_power.power_ups(
DecryptingPower).keypair.decrypt_message_kit(policy_message_kit)
assert cleartext == original_message
#
# Try using multiple retrieval kits
#
multiple_retrieval_kits_params = dict(retrieve_cfrags_params)
enrico = Enrico(policy_encrypting_key=enacted_policy.public_key)
retrieval_kit_1 = RetrievalKit.from_message_kit(
enrico.encrypt_message(b"Those who say it can't be done"))
retrieval_kit_2 = RetrievalKit.from_message_kit(
enrico.encrypt_message(b"are usually interrupted by others doing it."))
retrieval_kit_field = RetrievalKitField()
# use multiple retrieval kits and serialize for json
multiple_retrieval_kits_params['retrieval_kits'] = [
retrieval_kit_field._serialize(value=retrieval_kit_1,
attr=None,
obj=None),
retrieval_kit_field._serialize(value=retrieval_kit_2,
attr=None,
obj=None)
]
response = blockchain_porter_web_controller.post(
'/retrieve_cfrags', data=json.dumps(multiple_retrieval_kits_params))
assert response.status_code == 200
response_data = json.loads(response.data)
retrieval_results = response_data['result']['retrieval_results']
assert retrieval_results
assert len(retrieval_results) == 2
#
# Try same retrieval (with multiple retrieval kits) using query parameters
#
url_retrieve_params = dict(
multiple_retrieval_kits_params) # use multiple kit params from above
# adjust parameter for url query parameter list format
url_retrieve_params['retrieval_kits'] = ",".join(
url_retrieve_params['retrieval_kits']) # adjust for list
response = blockchain_porter_web_controller.post(
f'/retrieve_cfrags'
f'?{urlencode(url_retrieve_params)}')
assert response.status_code == 200
response_data = json.loads(response.data)
retrieval_results = response_data['result']['retrieval_results']
assert retrieval_results
assert len(retrieval_results) == 2
#
# Failure
#
failure_retrieve_cfrags_params = dict(retrieve_cfrags_params)
# use invalid treasure map bytes
failure_retrieve_cfrags_params['treasure_map'] = b64encode(
os.urandom(32)).decode()
response = blockchain_porter_web_controller.post(
'/retrieve_cfrags', data=json.dumps(failure_retrieve_cfrags_params))
assert response.status_code == 400 # invalid treasure map provided
def test_retrieve_cfrags(federated_porter, federated_porter_web_controller,
enacted_federated_policy, federated_bob,
federated_alice, random_federated_treasure_map_data):
# Send bad data to assert error return
response = federated_porter_web_controller.post('/retrieve_cfrags',
data=json.dumps(
{'bad': 'input'}))
assert response.status_code == 400
# Setup
original_message = b'The paradox of education is precisely this - that as one begins to become ' \
b'conscious one begins to examine the society in which ' \
b'he is (they are) being educated.' # - James Baldwin
retrieve_cfrags_params, message_kit = retrieval_request_setup(
enacted_federated_policy,
federated_bob,
federated_alice,
original_message=original_message,
encode_for_rest=True)
#
# Success
#
response = federated_porter_web_controller.post(
'/retrieve_cfrags', data=json.dumps(retrieve_cfrags_params))
assert response.status_code == 200
response_data = json.loads(response.data)
retrieval_results = response_data['result']['retrieval_results']
assert retrieval_results
# expected results - can only compare length of results, ursulas are randomized to obtain cfrags
retrieve_args = retrieval_params_decode_from_rest(retrieve_cfrags_params)
expected_results = federated_porter.retrieve_cfrags(**retrieve_args)
assert len(retrieval_results) == len(expected_results)
# check that the re-encryption performed was valid
treasure_map = retrieve_args['treasure_map']
policy_message_kit = PolicyMessageKit.from_message_kit(
message_kit=message_kit,
policy_encrypting_key=enacted_federated_policy.public_key,
threshold=treasure_map.threshold)
assert len(retrieval_results) == 1
field = RetrievalResultSchema()
cfrags = field.load(retrieval_results[0])['cfrags']
verified_cfrags = {}
for ursula, cfrag in cfrags.items():
# need to obtain verified cfrags (verified cfrags are not deserializable, only non-verified cfrags)
verified_cfrag = cfrag.verify(
capsule=policy_message_kit.message_kit.capsule,
verifying_pk=federated_alice.stamp.as_umbral_pubkey(),
delegating_pk=enacted_federated_policy.public_key,
receiving_pk=federated_bob.public_keys(DecryptingPower))
verified_cfrags[ursula] = verified_cfrag
retrieval_result_object = RetrievalResult(cfrags=verified_cfrags)
policy_message_kit = policy_message_kit.with_result(
retrieval_result_object)
assert policy_message_kit.is_decryptable_by_receiver()
cleartext = federated_bob._crypto_power.power_ups(
DecryptingPower).keypair.decrypt_message_kit(policy_message_kit)
assert cleartext == original_message
#
# Try using multiple retrieval kits
#
multiple_retrieval_kits_params = dict(retrieve_cfrags_params)
enrico = Enrico(policy_encrypting_key=enacted_federated_policy.public_key)
retrieval_kit_1 = RetrievalKit.from_message_kit(
enrico.encrypt_message(b'The paradox of education is precisely this'))
retrieval_kit_2 = RetrievalKit.from_message_kit(
enrico.encrypt_message(b'that as one begins to become conscious'))
retrieval_kit_3 = RetrievalKit.from_message_kit(
enrico.encrypt_message(b'begins to examine the society in which'))
retrieval_kit_4 = RetrievalKit.from_message_kit(
enrico.encrypt_message(b'he is (they are) being educated.'))
retrieval_kit_field = RetrievalKitField()
# use multiple retrieval kits and serialize for json
multiple_retrieval_kits_params['retrieval_kits'] = [
retrieval_kit_field._serialize(value=retrieval_kit_1,
attr=None,
obj=None),
retrieval_kit_field._serialize(value=retrieval_kit_2,
attr=None,
obj=None),
retrieval_kit_field._serialize(value=retrieval_kit_3,
attr=None,
obj=None),
retrieval_kit_field._serialize(value=retrieval_kit_4,
attr=None,
obj=None)
]
response = federated_porter_web_controller.post(
'/retrieve_cfrags', data=json.dumps(multiple_retrieval_kits_params))
assert response.status_code == 200
response_data = json.loads(response.data)
retrieval_results = response_data['result']['retrieval_results']
assert retrieval_results
assert len(retrieval_results) == 4
#
# Try same retrieval (with multiple retrieval kits) using query parameters
#
url_retrieve_params = dict(
multiple_retrieval_kits_params) # use multiple kit params from above
# adjust parameter for url query parameter list format
url_retrieve_params['retrieval_kits'] = ",".join(
url_retrieve_params['retrieval_kits'])
response = federated_porter_web_controller.post(
f'/retrieve_cfrags'
f'?{urlencode(url_retrieve_params)}')
assert response.status_code == 200
response_data = json.loads(response.data)
retrieval_results = response_data['result']['retrieval_results']
assert retrieval_results
assert len(retrieval_results) == 4
#
# Failure
#
failure_retrieve_cfrags_params = dict(retrieve_cfrags_params)
# use encrypted treasure map
_, random_treasure_map = random_federated_treasure_map_data
failure_retrieve_cfrags_params['treasure_map'] = b64encode(
bytes(random_treasure_map)).decode()
response = federated_porter_web_controller.post(
'/retrieve_cfrags', data=json.dumps(failure_retrieve_cfrags_params))
assert response.status_code == 400 # invalid treasure map provided