def test_process_post_response_404(post_response):
# If the response code is a rejection (lets say 404) it should raise TowerResponseError
responses.add(responses.POST,
add_appointment_endpoint,
json=post_response,
status=404)
with pytest.raises(TowerResponseError):
r = teos_client.post_request(json.dumps(dummy_appointment_data),
add_appointment_endpoint)
teos_client.process_post_response(r)
def test_process_post_response_not_json(post_response):
# TowerResponseError should be raised if the response is not in json (independently of the status code)
responses.add(responses.POST, add_appointment_endpoint, status=404)
with pytest.raises(TowerResponseError):
r = teos_client.post_request(json.dumps(dummy_appointment_data),
add_appointment_endpoint)
teos_client.process_post_response(r)
responses.replace(responses.POST, add_appointment_endpoint, status=200)
with pytest.raises(TowerResponseError):
r = teos_client.post_request(json.dumps(dummy_appointment_data),
add_appointment_endpoint)
teos_client.process_post_response(r)
def test_add_appointment_trigger_on_cache_cannot_decrypt(teosd):
_, teos_id = teosd
commitment_tx, _, penalty_tx = create_txs()
# Let's send the commitment to the network and mine a block
generate_block_with_transactions(commitment_tx)
sleep(1)
# The appointment data is built using a random 32-byte value.
appointment_data = build_appointment_data(get_random_value_hex(32), penalty_tx)
# We cannot use teos_client.add_appointment here since it computes the locator internally, so let's do it manually.
appointment_data["locator"] = compute_locator(bitcoin_cli.decoderawtransaction(commitment_tx).get("txid"))
appointment_data["encrypted_blob"] = Cryptographer.encrypt(penalty_tx, get_random_value_hex(32))
appointment = Appointment.from_dict(appointment_data)
signature = Cryptographer.sign(appointment.serialize(), user_sk)
data = {"appointment": appointment.to_dict(), "signature": signature}
# Send appointment to the server.
response = teos_client.post_request(data, teos_add_appointment_endpoint)
response_json = teos_client.process_post_response(response)
# Check that the server has accepted the appointment
tower_signature = response_json.get("signature")
appointment_receipt = receipts.create_appointment_receipt(signature, response_json.get("start_block"))
rpk = Cryptographer.recover_pk(appointment_receipt, tower_signature)
assert teos_id == Cryptographer.get_compressed_pk(rpk)
assert response_json.get("locator") == appointment.locator
# The appointment should should have been immediately dropped
with pytest.raises(TowerResponseError):
get_appointment_info(teos_id, appointment_data["locator"])
def test_process_post_response(post_response):
# A 200 OK with a correct json response should return the json of the response
responses.add(responses.POST,
add_appointment_endpoint,
json=post_response,
status=200)
r = teos_client.post_request(json.dumps(dummy_appointment_data),
add_appointment_endpoint)
assert teos_client.process_post_response(r) == r.json()
def test_appointment_wrong_decryption_key(teosd):
_, teos_id = teosd
# This tests an appointment encrypted with a key that has not been derived from the same source as the locator.
# Therefore the tower won't be able to decrypt the blob once the appointment is triggered.
commitment_tx, _, penalty_tx = create_txs()
# The appointment data is built using a random 32-byte value.
appointment_data = build_appointment_data(get_random_value_hex(32), penalty_tx)
# We cannot use teos_client.add_appointment here since it computes the locator internally, so let's do it manually.
# We will encrypt the blob using the random value and derive the locator from the commitment tx.
appointment_data["locator"] = compute_locator(bitcoin_cli.decoderawtransaction(commitment_tx).get("txid"))
appointment_data["encrypted_blob"] = Cryptographer.encrypt(penalty_tx, get_random_value_hex(32))
appointment = Appointment.from_dict(appointment_data)
signature = Cryptographer.sign(appointment.serialize(), user_sk)
data = {"appointment": appointment.to_dict(), "signature": signature}
# Send appointment to the server.
response = teos_client.post_request(data, teos_add_appointment_endpoint)
response_json = teos_client.process_post_response(response)
# Check that the server has accepted the appointment
tower_signature = response_json.get("signature")
appointment_receipt = receipts.create_appointment_receipt(signature, response_json.get("start_block"))
rpk = Cryptographer.recover_pk(appointment_receipt, tower_signature)
assert teos_id == Cryptographer.get_compressed_pk(rpk)
assert response_json.get("locator") == appointment.locator
# Trigger the appointment
generate_block_with_transactions(commitment_tx)
# The appointment should have been removed since the decryption failed.
with pytest.raises(TowerResponseError):
get_appointment_info(teos_id, appointment.locator)