# TODO: path joins?
TEMP_DOCTOR_DIR = "{}/doctor-files".format(
os.path.dirname(os.path.abspath(__file__)))
# Remove previous demo files and create new ones
shutil.rmtree(TEMP_DOCTOR_DIR, ignore_errors=True)
ursula = Ursula.from_seed_and_stake_info(seed_uri=SEEDNODE_URI,
federated_only=True,
minimum_stake=0)
# To create a Bob, we need the doctor's private keys previously generated.
from doctor_keys import get_doctor_privkeys
doctor_keys = get_doctor_privkeys()
bob_enc_keypair = DecryptingKeypair(private_key=doctor_keys["enc"])
bob_sig_keypair = SigningKeypair(private_key=doctor_keys["sig"])
enc_power = DecryptingPower(keypair=bob_enc_keypair)
sig_power = SigningPower(keypair=bob_sig_keypair)
power_ups = [enc_power, sig_power]
print("Creating the Doctor ...")
doctor = Bob(
domain=TEMPORARY_DOMAIN,
federated_only=True,
crypto_power_ups=power_ups,
start_learning_now=True,
abort_on_learning_error=True,
def doctor_decrypt(hash_key):
globalLogPublisher.addObserver(SimpleObserver())
SEEDNODE_URL = 'localhost:11501'
TEMP_DOCTOR_DIR = "{}/doctor-files".format(
os.path.dirname(os.path.abspath(__file__)))
shutil.rmtree(TEMP_DOCTOR_DIR, ignore_errors=True)
ursula = Ursula.from_seed_and_stake_info(seed_uri=SEEDNODE_URL,
federated_only=True,
minimum_stake=0)
from doctor_keys import get_doctor_privkeys
doctor_keys = get_doctor_privkeys()
bob_enc_keypair = DecryptingKeypair(private_key=doctor_keys["enc"])
bob_sig_keypair = SigningKeypair(private_key=doctor_keys["sig"])
enc_power = DecryptingPower(keypair=bob_enc_keypair)
sig_power = SigningPower(keypair=bob_sig_keypair)
power_ups = [enc_power, sig_power]
print("Creating the Doctor ...")
doctor = Bob(
is_me=True,
federated_only=True,
crypto_power_ups=power_ups,
start_learning_now=True,
abort_on_learning_error=True,
known_nodes=[ursula],
save_metadata=False,
network_middleware=RestMiddleware(),
)
print("Doctor = ", doctor)
with open("policy-metadata.json", 'r') as f:
policy_data = json.load(f)
policy_pubkey = UmbralPublicKey.from_bytes(
bytes.fromhex(policy_data["policy_pubkey"]))
alices_sig_pubkey = UmbralPublicKey.from_bytes(
bytes.fromhex(policy_data["alice_sig_pubkey"]))
label = policy_data["label"].encode()
print("The Doctor joins policy for label '{}'".format(
label.decode("utf-8")))
doctor.join_policy(label, alices_sig_pubkey)
ipfs_api = ipfsapi.connect()
file = ipfs_api.get(hash_key)
print(file)
os.rename(hash_key, 'patient_details.msgpack')
data = msgpack.load(open("patient_details.msgpack", "rb"), raw=False)
message_kits = (UmbralMessageKit.from_bytes(k) for k in data['kits'])
data_source = DataSource.from_public_keys(
policy_public_key=policy_pubkey,
datasource_public_key=data['data_source'],
label=label)
complete_message = []
for message_kit in message_kits:
print(message_kit)
try:
start = timer()
retrieved_plaintexts = doctor.retrieve(
message_kit=message_kit,
data_source=data_source,
alice_verifying_key=alices_sig_pubkey)
end = timer()
plaintext = msgpack.loads(retrieved_plaintexts[0], raw=False)
complete_message.append(plaintext)
print(plaintext)
#with open("details.json", "w") as write_file:
# json.dump(plaintext, write_file)
except Exception as e:
traceback.print_exc()
with open("details.json", "w") as write_file:
json.dump(complete_message, write_file)
return complete_message