446 lines
13 KiB
Python
446 lines
13 KiB
Python
# (c) Copyright 2018 by Coinkite Inc. This file is part of Coldcard <coldcardwallet.com>
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# and is covered by GPLv3 license found in COPYING.
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#
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import pytest, glob, time
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from ckcc_protocol.protocol import CCProtocolPacker, CCProtoError
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from api import bitcoind, match_key
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SIM_PATH = '/tmp/ckcc-simulator.sock'
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# Simulator normally powers up with this 'wallet'
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simulator_fixed_xprv = "tprv8ZgxMBicQKsPeXJHL3vPPgTAEqQ5P2FD9qDeCQT4Cp1EMY5QkwMPWFxHdxHrxZhhcVRJ2m7BNWTz9Xre68y7mX5vCdMJ5qXMUfnrZ2si2X4"
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simulator_fixed_words = "wife shiver author away frog air rough vanish fantasy frozen noodle athlete pioneer citizen symptom firm much faith extend rare axis garment kiwi clarify"
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simulator_fixed_xfp = 0x4369050f
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def pytest_addoption(parser):
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parser.addoption("--dev", action="store_true",
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default=False, help="run on real dev")
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parser.addoption("--sim", action="store_true",
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default=True, help="run on simulator")
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@pytest.fixture(scope='session')
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def dev(request):
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# a connected Coldcard (via USB) .. or the simulator
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# use command line --sim or --dev to pick, default is sim
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from ckcc_protocol.client import ColdcardDevice
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config = request.config
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if config.getoption("--dev"):
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return ColdcardDevice()
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else:
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# manually get the simulator fixture
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simulator = request.getfixturevalue('simulator')
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return simulator
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@pytest.fixture(scope='session')
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def simulator(request):
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# get a connection to simulator (only, never USB dev)
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from ckcc_protocol.client import ColdcardDevice
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if request.config.getoption("--dev"):
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raise pytest.skip('USB dev')
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try:
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return ColdcardDevice(sn=SIM_PATH)
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except:
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print("Simulator is required for this test")
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raise pytest.fail('missing simulator')
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@pytest.fixture(scope='module')
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def sim_exec(simulator):
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# run code in the simulator's interpretor
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def doit(cmd):
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return simulator.send_recv(b'EXEC' + cmd.encode('utf-8')).decode('utf-8')
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return doit
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@pytest.fixture(scope='module')
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def sim_eval(simulator):
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# eval an expression in the simulator's interpretor
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def doit(cmd):
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return simulator.send_recv(b'EVAL' + cmd.encode('utf-8')).decode('utf-8')
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return doit
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@pytest.fixture(scope='module')
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def sim_execfile(simulator):
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# run a whole file in the simulator's interpretor
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import os
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def doit(fname, timeout=None):
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fn = os.path.realpath(fname)
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hook = 'execfile("%s")' % fn
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return simulator.send_recv(b'EXEC' + hook.encode('utf-8'), timeout=timeout).decode('utf-8')
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return doit
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@pytest.fixture(scope='module')
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def need_keypress(dev):
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def doit(k):
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if hasattr(dev.dev, 'pipe'):
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dev.send_recv(CCProtocolPacker.sim_keypress(k.encode('ascii')))
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else:
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# try to use debug interface to simulate the press
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# XXX for some reason, picocom must **already** be running for this to work.
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# - otherwise, this locks up
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devs = list(glob.glob('/dev/tty.usbmodem*'))
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if len(devs) == 1:
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with open(devs[0], 'wb', 0) as fd:
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fd.write(k.encode('ascii'))
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else:
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# need actual user interaction
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print("NOW, on the Coldcard, press key: %s" % k)
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return doit
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@pytest.fixture(scope='module')
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def master_xpub(dev):
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r = dev.send_recv(CCProtocolPacker.get_xpub('m'), timeout=None, encrypt=1)
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assert r[1:4] == 'pub', r
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if r[0:4] == dev.master_xpub[0:4]:
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assert r == dev.master_xpub
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else:
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# testnet vs. mainnet
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from pycoin.key.BIP32Node import BIP32Node
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a = BIP32Node.from_wallet_key(r)
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b = BIP32Node.from_wallet_key(dev.master_xpub)
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assert a.secret_exponent() == b.secret_exponent()
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return r
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@pytest.fixture(scope='module')
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def unit_test(sim_execfile):
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def doit(filename):
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rv = sim_execfile(filename)
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if rv: pytest.fail(rv)
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return doit
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@pytest.fixture(scope='module')
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def addr_vs_path(master_xpub):
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from pycoin.key.BIP32Node import BIP32Node
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from ckcc_protocol.constants import AF_CLASSIC, AFC_PUBKEY, AF_P2WPKH, AFC_SCRIPT
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from ckcc_protocol.constants import AF_P2WPKH_P2SH
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from bech32 import bech32_decode, convertbits
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from pycoin.encoding import a2b_hashed_base58, hash160
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def doit(given_addr, path, addr_fmt):
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mk = BIP32Node.from_wallet_key(master_xpub)
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sk = mk.subkey_for_path(path[2:])
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if addr_fmt == AF_CLASSIC:
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# easy
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assert sk.address() == given_addr
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elif addr_fmt & AFC_PUBKEY:
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pkh = sk.hash160(use_uncompressed=False)
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if addr_fmt == AF_P2WPKH:
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hrp, data = bech32_decode(given_addr)
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decoded = convertbits(data[1:], 5, 8, False)
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assert hrp in {'tb', 'bc' }
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assert bytes(decoded[-20:]) == pkh
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else:
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assert addr_fmt == AF_P2WPKH_P2SH
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assert given_addr[0] in '23'
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expect = a2b_hashed_base58(given_addr)[1:]
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assert len(expect) == 20
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assert hash160(b'\x00\x14' + pkh) == expect
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elif addr_fmt & AFC_SCRIPT:
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raise pytest.fail('multisig/p2sh addr not handled')
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else:
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raise ValueError(addr_fmt)
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return doit
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@pytest.fixture(scope='module')
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def capture_enabled(sim_eval):
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# need to have sim_display imported early, see unix/frozen-modules/ckcc
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# - could be xfail or xskip here
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assert sim_eval("'sim_display' in sys.modules") == 'True'
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@pytest.fixture(scope='module')
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def cap_menu(sim_execfile):
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"Return menu items as a list"
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def doit():
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return sim_execfile('devtest/cap-menu.py').split('\n')
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return doit
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@pytest.fixture(scope='module')
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def cap_screen(sim_execfile):
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def doit():
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return sim_execfile('devtest/cap-screen.py')
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return doit
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@pytest.fixture(scope='module')
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def cap_story(sim_execfile):
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# returns (title, body) of whatever story is being actively shown
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def doit():
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return sim_execfile('devtest/cap-story.py').split('\0', 1)
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return doit
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@pytest.fixture(scope='module')
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def get_secrets(sim_execfile):
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# returns big dict based on what we'd normally put into a backup file.
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def doit():
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from json import loads
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rv = dict()
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resp = sim_execfile('devtest/get-secrets.py')
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assert 'Error' not in resp
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for ln in resp.split('\n'):
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ln = ln.strip()
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if '#' in ln:
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ln = ln[0:ln.index('#')]
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if not ln: continue
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assert ' = ' in ln
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n, v = ln.split(' = ', 1)
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rv[n] = loads(v)
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return rv
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return doit
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@pytest.fixture
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def goto_home(cap_menu, need_keypress):
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def doit():
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# get to top, force a redraw
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for i in range(10):
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need_keypress('x')
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time.sleep(.01) # required
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need_keypress('0')
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# check menu contents
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m = cap_menu()
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assert 'Ready To Sign' in m
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return doit
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@pytest.fixture
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def pick_menu_item(cap_menu, need_keypress):
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def doit(text):
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need_keypress('0')
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m = cap_menu()
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assert text in m, "%r not in menu: %r" % (text, m)
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for label in m:
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if label == text:
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need_keypress('y')
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time.sleep(.01) # required
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return
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need_keypress('8')
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time.sleep(.01) # required
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assert False, 'not reached'
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return doit
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@pytest.fixture(scope='module')
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def microsd_path(simulator):
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# open a file from the simulated microsd
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def doit(fn):
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return '../unix/work/MicroSD/' + fn
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return doit
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@pytest.fixture(scope='module')
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def open_microsd(simulator, microsd_path):
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# open a file from the simulated microsd
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def doit(fn, mode='rb'):
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return open(microsd_path(fn), mode)
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return doit
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@pytest.fixture()
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def set_master_key(sim_exec, sim_execfile, simulator):
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# load simulator w/ a specific bip32 master key
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def doit(prv):
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assert prv[1:4] == 'prv'
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sim_exec('import main; main.TPRV = %r; ' % prv)
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rv = sim_execfile('devtest/set_tprv.py')
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if rv: pytest.fail(rv)
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simulator.start_encryption()
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simulator.check_mitm()
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print("sim xfp: 0x%08x" % simulator.master_fingerprint)
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yield doit
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# Important cleanup: restore normal key, because other tests assume that
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doit(simulator_fixed_xprv)
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@pytest.fixture()
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def set_seed_words(sim_exec, sim_execfile, simulator):
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# load simulator w/ a specific bip32 master key
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def doit(words):
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sim_exec('import main; main.WORDS = %r; ' % words.split())
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rv = sim_execfile('devtest/set_seed.py')
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if rv: pytest.fail(rv)
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simulator.start_encryption()
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simulator.check_mitm()
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print("sim xfp: 0x%08x" % simulator.master_fingerprint)
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yield doit
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# Important cleanup: restore normal key, because other tests assume that
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doit(simulator_fixed_words)
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@pytest.fixture()
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def reset_seed_words(sim_exec, sim_execfile, simulator):
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# load simulator w/ a specific bip39 seed phrase
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def doit():
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words = simulator_fixed_words
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sim_exec('import main; main.WORDS = %r; ' % words.split())
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rv = sim_execfile('devtest/set_seed.py')
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if rv: pytest.fail(rv)
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simulator.start_encryption()
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simulator.check_mitm()
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print("sim xfp: 0x%08x (reset)" % simulator.master_fingerprint)
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assert simulator.master_fingerprint == simulator_fixed_xfp
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return words
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yield doit
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@pytest.fixture()
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def settings_set(sim_exec):
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def doit(key, val):
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x = sim_exec("from main import settings; settings.set('%s', %r)" % (key, val))
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assert x == ''
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return doit
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@pytest.fixture(scope='session')
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def repl(dev=None):
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# Provide an interactive connection to the REPL. Has to be real device, with
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# dev features enabled. Best really with unit in factory mode.
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import sys, serial
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from serial.tools.list_ports import comports
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# NOTE:
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# - tested only on Mac, but might work elsewhere.
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# - board needs to be reset between runs, because USB protocol (not serial) is disabled by this
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class USBRepl:
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def __init__(self):
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for d in comports():
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if d.pid != 0xcc10: continue
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if dev:
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if d.serial_number != dev.serial: continue
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self.sio = serial.Serial(d.device, write_timeout=1)
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print("Connected to: %s" % d.device)
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break
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else:
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raise RuntimeError("Can't find usb serial port")
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self.sio.timeout = 0.250
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greet = self.sio.readlines()
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if greet and b'Welcome to Coldcard!' in greet[1]:
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self.sio.write(b'\x03') # ctrl-C
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while 1:
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self.sio.timeout = 1
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lns = self.sio.readlines()
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if not lns: break
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# hit enter, expect prompt
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self.sio.timeout = 0.100
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self.sio.write(b'\r')
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ln = self.sio.readlines()
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assert ln[-1] == b'>>> ', ln
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self.sio.timeout = 0.250
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def eval(self, cmd, max_time=3):
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# send a command, wait for it to finish (next prompt) and eval the response
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print("eval: %r" % cmd)
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self.sio.write(cmd.encode('ascii') + b'\r')
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self.sio.timeout = max_time
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lines = []
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while 1:
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resp = self.sio.readline().decode('ascii')
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if resp.startswith('>>> '): break
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lines.append(resp)
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if any('Traceback' in l for l in lines):
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raise RuntimeError(''.join(lines))
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if len(lines) == 0:
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raise RuntimeError("timeout/got nothing")
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if len(lines) == 1:
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# cmd printed nothing, meaning it returned None and REPL hid that
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assert lines[0].startswith(cmd), lines
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return None
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try:
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return eval(lines[-1])
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except:
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raise RuntimeError(''.join(lines))
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def exec(self, cmd, proc_time=1):
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# send a (one line) command and read the one-line response
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print("exec: %r" % cmd)
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self.sio.write(cmd.encode('ascii') + b'\r')
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self.sio.timeout = 0.2
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echo = self.sio.readline()
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#print("echo: %r" % echo.decode('ascii'))
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assert cmd.encode('ascii') in echo
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self.sio.timeout = proc_time
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resp = self.sio.readline().decode('ascii')
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#print("resp: %r" % resp)
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return resp
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return USBRepl()
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#EOF
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