Files
python-teos/test/apps/cli/unit/test_pisa_cli.py
2020-01-15 03:35:34 -05:00

213 lines
6.7 KiB
Python

import responses
import json
import os
import pytest
from binascii import hexlify
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import hashes, serialization
from cryptography.hazmat.primitives.asymmetric import ec
from common.appointment import Appointment
from common.cryptographer import Cryptographer
import apps.cli.pisa_cli as pisa_cli
from test.apps.cli.unit.conftest import get_random_value_hex
# dummy keys for the tests
pisa_sk = ec.generate_private_key(ec.SECP256K1, default_backend())
pisa_pk = pisa_sk.public_key()
other_sk = ec.generate_private_key(ec.SECP256K1, default_backend())
pisa_sk_der = pisa_sk.private_bytes(
encoding=serialization.Encoding.DER,
format=serialization.PrivateFormat.TraditionalOpenSSL,
encryption_algorithm=serialization.NoEncryption(),
)
pisa_pk_der = pisa_pk.public_bytes(
encoding=serialization.Encoding.DER, format=serialization.PublicFormat.SubjectPublicKeyInfo
)
other_sk_der = other_sk.private_bytes(
encoding=serialization.Encoding.DER,
format=serialization.PrivateFormat.TraditionalOpenSSL,
encryption_algorithm=serialization.NoEncryption(),
)
# Replace the key in the module with a key we control for the tests
pisa_cli.pisa_public_key = pisa_pk
# Replace endpoint with dummy one
pisa_cli.pisa_api_server = "dummy.com"
pisa_cli.pisa_api_port = 12345
pisa_endpoint = pisa_cli.pisa_api_server + ":" + str(pisa_cli.pisa_api_port)
dummy_appointment_request = {
"tx": get_random_value_hex(192),
"tx_id": get_random_value_hex(32),
"start_time": 1500,
"end_time": 50000,
"to_self_delay": 200,
"encrypted_blob": get_random_value_hex(120),
}
# This is the format appointment turns into once it hits "add_appointment"
dummy_appointment_full = {
"locator": get_random_value_hex(32),
"start_time": 1500,
"end_time": 50000,
"to_self_delay": 200,
"encrypted_blob": get_random_value_hex(120),
}
dummy_appointment = Appointment.from_dict(dummy_appointment_full)
def get_dummy_pisa_sk_der(*args):
return pisa_sk_der
def get_dummy_pisa_pk_der(*args):
return pisa_pk_der
def get_dummy_hex_pk_der(*args):
return hexlify(get_dummy_pisa_pk_der(None))
def get_dummy_signature(*args):
sk = Cryptographer.load_private_key_der(pisa_sk_der)
return Cryptographer.sign(dummy_appointment.serialize(), sk)
def get_bad_signature(*args):
sk = Cryptographer.load_private_key_der(other_sk_der)
return Cryptographer.sign(dummy_appointment.serialize(), sk)
def valid_sig(*args):
return True
def invalid_sig(*args):
return False
@responses.activate
def test_add_appointment(monkeypatch):
# Simulate a request to add_appointment for dummy_appointment, make sure that the right endpoint is requested
# and the return value is True
# Make sure the test uses the dummy signature
monkeypatch.setattr(pisa_cli, "get_appointment_signature", get_dummy_signature)
monkeypatch.setattr(pisa_cli, "get_pk", get_dummy_hex_pk_der)
monkeypatch.setattr(pisa_cli, "check_signature", valid_sig)
response = {"locator": dummy_appointment.to_dict()["locator"], "signature": get_dummy_signature(None)}
request_url = "http://{}/".format(pisa_endpoint)
responses.add(responses.POST, request_url, json=response, status=200)
result = pisa_cli.add_appointment([json.dumps(dummy_appointment_request)])
assert len(responses.calls) == 1
assert responses.calls[0].request.url == request_url
assert result
@responses.activate
def test_add_appointment_with_invalid_signature(monkeypatch):
# Simulate a request to add_appointment for dummy_appointment, but sign with a different key,
# make sure that the right endpoint is requested, but the return value is False
# Make sure the test uses the bad dummy signature
monkeypatch.setattr(pisa_cli, "get_appointment_signature", get_bad_signature)
monkeypatch.setattr(pisa_cli, "get_pk", get_dummy_hex_pk_der)
monkeypatch.setattr(pisa_cli, "check_signature", invalid_sig)
response = {
"locator": dummy_appointment.to_dict()["locator"],
"signature": get_bad_signature(None), # Sign with a bad key
}
request_url = "http://{}/".format(pisa_endpoint)
responses.add(responses.POST, request_url, json=response, status=200)
result = pisa_cli.add_appointment([json.dumps(dummy_appointment_request)])
assert not result
def test_parse_add_appointment_args():
# If no args are passed, function should fail.
appt_data = pisa_cli.parse_add_appointment_args(None)
assert not appt_data
# If file doesn't exist, function should fail.
appt_data = pisa_cli.parse_add_appointment_args(["-f", "nonexistent_file"])
assert not appt_data
# If file exists and has data in it, function should work.
with open("appt_test_file", "w") as f:
json.dump(dummy_appointment_request, f)
appt_data = pisa_cli.parse_add_appointment_args(["-f", "appt_test_file"])
assert appt_data
os.remove("appt_test_file")
# If appointment json is passed in, funcion should work.
appt_data = pisa_cli.parse_add_appointment_args([json.dumps(dummy_appointment_request)])
assert appt_data
@responses.activate
def test_post_data_to_add_appointment_endpoint():
response = {
"locator": dummy_appointment.to_dict()["locator"],
"signature": Cryptographer.sign(dummy_appointment.serialize(), pisa_sk),
}
request_url = "http://{}/".format(pisa_endpoint)
responses.add(responses.POST, request_url, json=response, status=200)
response = pisa_cli.post_data_to_add_appointment_endpoint(request_url, json.dumps(dummy_appointment_request))
assert len(responses.calls) == 1
assert responses.calls[0].request.url == request_url
assert response
def test_check_signature(monkeypatch):
# Make sure the test uses the right dummy key instead of loading it from disk
monkeypatch.setattr(pisa_cli, "load_key_file_data", get_dummy_pisa_pk_der)
valid = pisa_cli.check_signature(get_dummy_signature(), dummy_appointment)
assert valid
valid = pisa_cli.check_signature(get_bad_signature(), dummy_appointment)
assert not valid
def test_get_appointment_signature(monkeypatch):
# Make sure the test uses the right dummy key instead of loading it from disk
monkeypatch.setattr(pisa_cli, "load_key_file_data", get_dummy_pisa_sk_der)
signature = pisa_cli.get_appointment_signature(dummy_appointment)
assert isinstance(signature, str)
def test_get_pk(monkeypatch):
# Make sure the test uses the right dummy key instead of loading it from disk
monkeypatch.setattr(pisa_cli, "load_key_file_data", get_dummy_pisa_pk_der)
pk = pisa_cli.get_pk()
assert isinstance(pk, bytes)