mirror of
https://github.com/aljazceru/python-teos.git
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144 lines
4.2 KiB
Python
144 lines
4.2 KiB
Python
import pytest
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import random
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import requests
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from time import sleep
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from shutil import rmtree
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from threading import Thread
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from binascii import hexlify
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from cryptography.hazmat.backends import default_backend
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from cryptography.hazmat.primitives.asymmetric import ec
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from cryptography.hazmat.primitives import serialization
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from apps.cli.blob import Blob
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from pisa.responder import TransactionTracker
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from pisa.watcher import Watcher
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from pisa.tools import bitcoin_cli
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from pisa.db_manager import DBManager
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from common.appointment import Appointment
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from test.simulator.utils import sha256d
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from test.simulator.transaction import TX
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from test.simulator.bitcoind_sim import run_simulator, HOST, PORT
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from common.constants import LOCATOR_LEN_HEX
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from common.cryptographer import Cryptographer
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@pytest.fixture(scope="session")
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def run_bitcoind():
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bitcoind_thread = Thread(target=run_simulator, kwargs={"mode": "event", "verbose": False})
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bitcoind_thread.daemon = True
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bitcoind_thread.start()
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# It takes a little bit of time to start the API (otherwise the requests are sent too early and they fail)
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sleep(0.1)
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@pytest.fixture(scope="session", autouse=True)
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def prng_seed():
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random.seed(0)
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@pytest.fixture(scope="session")
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def db_manager():
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manager = DBManager("test_db")
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yield manager
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manager.db.close()
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rmtree("test_db")
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def generate_keypair():
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client_sk = ec.generate_private_key(ec.SECP256K1, default_backend())
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client_pk = client_sk.public_key()
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return client_sk, client_pk
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def get_random_value_hex(nbytes):
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pseudo_random_value = random.getrandbits(8 * nbytes)
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prv_hex = "{:x}".format(pseudo_random_value)
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return prv_hex.zfill(2 * nbytes)
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def generate_block():
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requests.post(url="http://{}:{}/generate".format(HOST, PORT), timeout=5)
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sleep(0.5)
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def generate_blocks(n):
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for _ in range(n):
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generate_block()
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def generate_dummy_appointment_data(real_height=True, start_time_offset=5, end_time_offset=30):
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if real_height:
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current_height = bitcoin_cli().getblockcount()
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else:
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current_height = 10
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dispute_tx = TX.create_dummy_transaction()
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dispute_txid = sha256d(dispute_tx)
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penalty_tx = TX.create_dummy_transaction(dispute_txid)
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dummy_appointment_data = {
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"tx": penalty_tx,
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"tx_id": dispute_txid,
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"start_time": current_height + start_time_offset,
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"end_time": current_height + end_time_offset,
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"to_self_delay": 20,
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}
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# dummy keys for this test
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client_sk, client_pk = generate_keypair()
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client_pk_der = client_pk.public_bytes(
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encoding=serialization.Encoding.DER, format=serialization.PublicFormat.SubjectPublicKeyInfo
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)
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locator = Watcher.compute_locator(dispute_txid)
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blob = Blob(dummy_appointment_data.get("tx"))
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encrypted_blob = Cryptographer.encrypt(blob, dummy_appointment_data.get("tx_id"))
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appointment_data = {
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"locator": locator,
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"start_time": dummy_appointment_data.get("start_time"),
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"end_time": dummy_appointment_data.get("end_time"),
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"to_self_delay": dummy_appointment_data.get("to_self_delay"),
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"encrypted_blob": encrypted_blob,
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}
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signature = Cryptographer.sign(Appointment.from_dict(appointment_data).serialize(), client_sk)
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pk_hex = hexlify(client_pk_der).decode("utf-8")
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data = {"appointment": appointment_data, "signature": signature, "public_key": pk_hex}
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return data, dispute_tx
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def generate_dummy_appointment(real_height=True, start_time_offset=5, end_time_offset=30):
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appointment_data, dispute_tx = generate_dummy_appointment_data(
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real_height=real_height, start_time_offset=start_time_offset, end_time_offset=end_time_offset
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)
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return Appointment.from_dict(appointment_data["appointment"]), dispute_tx
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def generate_dummy_tracker():
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dispute_txid = get_random_value_hex(32)
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penalty_txid = get_random_value_hex(32)
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penalty_rawtx = get_random_value_hex(100)
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locator = dispute_txid[:LOCATOR_LEN_HEX]
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tracker_data = dict(
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locator=locator,
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dispute_txid=dispute_txid,
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penalty_txid=penalty_txid,
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penalty_rawtx=penalty_rawtx,
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appointment_end=100,
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)
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return TransactionTracker.from_dict(tracker_data)
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