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#!python3
import collections
import inspect
import logging
import os
import subprocess
import sys
import tempfile
import pytest
# append cwd to module importable paths (pytest-3 should be executed from main
# directory).
sys.path.append(os.path.realpath("."))
import acme_dns_tiny
ACME_STAGING_DIRECTORY = \
'https://acme-staging-v02.api.letsencrypt.org/directory'
DOMAIN = os.getenv('TEST_DOMAIN')
CONTACT = os.getenv('TEST_CONTACT') # form: mailto:name@domain
SCRIPT = os.getenv('TEST_SCRIPT')
def funcname():
return inspect.currentframe().f_back.f_code.co_name
def parent_funcname():
return inspect.currentframe().f_back.f_back.f_code.co_name
def assert_success(capsys, args):
name = parent_funcname()
logging.info(f'assert_success({name}, {args})')
acme_dns_tiny.main(args)
captured = capsys.readouterr()
#assert not captured.err
certlist = captured.out.split('-----BEGIN CERTIFICATE-----')
assert len(certlist) == 3
assert certlist[0] == ''
assert '-----END CERTIFICATE-----\n' in certlist[1]
assert '-----END CERTIFICATE-----\n' in certlist[2]
textchain = acme_dns_tiny.openssl(['x509', '-text', '-noout'],
stdin=captured.out)
assert 'Issuer' in textchain
def assert_assertion(args):
name = parent_funcname()
logging.info(f'assert_assertion({name}, {args})')
with pytest.raises(ValueError):
acme_dns_tiny.main(args)
@pytest.fixture(scope='module')
def keys(tmpdir_factory):
tmpdir = tmpdir_factory.mktemp("data")
def _gen_key(name, size):
path = str(tmpdir.join(name))
acme_dns_tiny.openssl(['genrsa', '-out', path, str(size)])
return path
return {
'account_key': _gen_key('account_key', 4096),
'domain_key': _gen_key('domain_key', 4096),
'weak_account_key': _gen_key('weak_account_key', 1024),
'weak_domain_key': _gen_key('weak_domain_key', 1024),
}
@pytest.fixture(scope='module')
def csr_args(tmpdir_factory, keys):
tmpdir = tmpdir_factory.mktemp("data")
default_args = {
'--acme-directory': ACME_STAGING_DIRECTORY,
'--script': SCRIPT,
'--account-key': keys['account_key'],
#'--ttl': 60, # already the default
'--ttl': None,
'--contact': None,
'--verbose': None,
'--quiet': None,
}
def _csr(subj, key_name='domain_key', san=None, args={}):
name = parent_funcname()
domain_key = keys[key_name]
path = str(tmpdir.join(name))
if san is None:
acme_dns_tiny.openssl([
'req', '-new', '-key', domain_key, '-subj', subj, '-out', path
])
else:
with tempfile.NamedTemporaryFile('w', encoding='utf8') as conf, \
open('/etc/ssl/openssl.cnf', 'r', encoding='utf8') as orig:
conf.write(orig.read())
conf.write(f'\n[SAN]\nsubjectAltName={san}\n')
conf.flush()
acme_dns_tiny.openssl([
'req', '-new', '-key', domain_key, '-subj', subj,
'-reqexts', 'SAN', '-config', conf.name, '-out', path
])
return {**default_args, '--csr': path, **args}
return _csr
def test_sanity_env():
assert bool(DOMAIN)
assert bool(CONTACT)
assert bool(SCRIPT)
def test_sanity_command():
subprocess.run([SCRIPT, 'add', f'_acme-challenge.{DOMAIN}.', 'dummy'])
def test_success_single_domain_in_cn(csr_args, capsys):
subj = f'/CN={DOMAIN}'
assert_success(capsys, csr_args(subj))
def test_success_wildcard_in_cn(csr_args, capsys):
subj = f'/CN=*.{DOMAIN}'
assert_success(capsys, csr_args(subj))
def test_success_san_only(csr_args, capsys):
subj = '/'
san = f'DNS:{DOMAIN},DNS:www.{DOMAIN}'
assert_success(capsys, csr_args(subj=subj, san=san))
def test_success_san_only_contact(csr_args, capsys):
subj = '/'
san = f'DNS:{DOMAIN},DNS:www.{DOMAIN}'
args = {'--contact': [CONTACT]}
assert_success(capsys, csr_args(subj=subj, san=san, args=args))
def test_success_san_contact(csr_args, capsys):
subj = f'/CN={DOMAIN}'
san = f'DNS:www.{DOMAIN}'
args = {'--contact': [CONTACT]}
assert_success(capsys, csr_args(subj=subj, san=san, args=args))
def test_success_wildcard_san(csr_args, capsys):
subj = '/'
san = f'DNS:{DOMAIN},DNS:*.{DOMAIN}'
assert_success(capsys, csr_args(subj=subj, san=san))
def test_fail_weak_account_key(csr_args, keys):
subj = f'/CN={DOMAIN}'
args = {'--account-key': keys['weak_account_key']}
assert_assertion(csr_args(subj, args=args))
def test_fail_weak_domain_key(csr_args):
subj = f'/CN={DOMAIN}'
assert_assertion(csr_args(subj, key_name='weak_domain_key'))
def test_fail_csr_by_account(csr_args):
subj = f'/CN={DOMAIN}'
# single, csr wrongly signed by account key
assert_assertion(csr_args(subj, key_name='account_key'))
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