Files
openvpncertupdate/tests/test_easyrsa.py
Vlad Doloman bd17cdd68d fix Cryptgeon protocol and add CA passphrase / external config resolution
Cryptgeon's real protocol (verified against upstream occulto/frontend/backend
source) never matched what create_note() sent: it used a SHA-256-derived key
instead of the raw one, a single-blob ciphertext instead of the delimited
AES-GCM--nonce--ciphertext format, an empty meta field instead of a JSON
string, and a hash-bang URL instead of the real /note/<id>#<key> route -
notes uploaded fine but were undecryptable in the browser.

Also adds CA_PASSPHRASE auto-detection/prompting ("" auto-detects an
encrypted CA key and prompts, "!empty"/"!ask" opt out of/force the prompt)
and an external .conf file (--config / CONFIG_PATH / <script>.conf) that can
override the SETTINGS block without editing the script.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-06 12:58:21 +03:00

141 lines
5.1 KiB
Python

import pytest
from unittest.mock import patch, MagicMock
from openvpncertupdate import (
revoke_issued, build_client_full, gen_crl, copy_crl, EasyRSAError,
is_ca_key_encrypted, resolve_ca_passphrase,
)
def ok_result():
r = MagicMock(); r.returncode = 0; r.stderr = ""; return r
def err_result():
r = MagicMock(); r.returncode = 1; r.stderr = "oops"; return r
@patch("openvpncertupdate.subprocess.run")
def test_revoke_includes_required_args(mock_run):
mock_run.return_value = ok_result()
revoke_issued("/er", "/pki", "alice", "capass")
args = mock_run.call_args[0][0]
assert args[0] == "/er/easyrsa"
assert "--batch" in args
assert "--pki=/pki" in args
assert "--passin=pass:capass" in args
assert "revoke-issued" in args
assert "alice" in args
@patch("openvpncertupdate.subprocess.run")
def test_revoke_omits_passin_when_empty(mock_run):
mock_run.return_value = ok_result()
revoke_issued("/er", "/pki", "alice", "")
args = mock_run.call_args[0][0]
assert not any(a.startswith("--passin") for a in args)
@patch("openvpncertupdate.subprocess.run")
def test_revoke_raises_on_failure(mock_run):
mock_run.return_value = err_result()
with pytest.raises(EasyRSAError, match="revoke-issued"):
revoke_issued("/er", "/pki", "alice", "")
@patch("openvpncertupdate.subprocess.run")
def test_build_client_full_args(mock_run):
mock_run.return_value = ok_result()
build_client_full("/er", "/pki", "bob", "keypass", "capass")
args = mock_run.call_args[0][0]
assert "--passout=pass:keypass" in args
assert "--passin=pass:capass" in args
assert "build-client-full" in args
assert "bob" in args
@patch("openvpncertupdate.subprocess.run")
def test_gen_crl_args(mock_run):
mock_run.return_value = ok_result()
gen_crl("/er", "/pki", "capass")
args = mock_run.call_args[0][0]
assert "gen-crl" in args
@patch("openvpncertupdate.shutil.copy2")
@patch("openvpncertupdate.os.chmod")
def test_copy_crl_copies_and_chmods(mock_chmod, mock_copy):
copy_crl("/pki", "/etc/openvpn/crl.pem")
mock_copy.assert_called_once_with("/pki/crl.pem", "/etc/openvpn/crl.pem")
mock_chmod.assert_called_once_with("/etc/openvpn/crl.pem", 0o644)
# ---------------------------------------------------------------------------
# is_ca_key_encrypted
# ---------------------------------------------------------------------------
def _write_ca_key(pki_dir, content):
private = pki_dir / "private"
private.mkdir(parents=True, exist_ok=True)
(private / "ca.key").write_text(content)
def test_is_ca_key_encrypted_true_for_pkcs8_encrypted_header(tmp_path):
_write_ca_key(tmp_path, "-----BEGIN ENCRYPTED PRIVATE KEY-----\nAAA\n-----END ENCRYPTED PRIVATE KEY-----\n")
assert is_ca_key_encrypted(str(tmp_path)) is True
def test_is_ca_key_encrypted_true_for_legacy_proc_type_header(tmp_path):
_write_ca_key(tmp_path, "-----BEGIN RSA PRIVATE KEY-----\nProc-Type: 4,ENCRYPTED\nDEK-Info: AES-256-CBC,...\n\nAAA\n-----END RSA PRIVATE KEY-----\n")
assert is_ca_key_encrypted(str(tmp_path)) is True
def test_is_ca_key_encrypted_false_for_plain_key(tmp_path):
_write_ca_key(tmp_path, "-----BEGIN PRIVATE KEY-----\nAAA\n-----END PRIVATE KEY-----\n")
assert is_ca_key_encrypted(str(tmp_path)) is False
def test_is_ca_key_encrypted_false_when_key_missing(tmp_path):
assert is_ca_key_encrypted(str(tmp_path)) is False
# ---------------------------------------------------------------------------
# resolve_ca_passphrase
# ---------------------------------------------------------------------------
def test_resolve_empty_string_prompts_when_ca_is_encrypted(tmp_path):
_write_ca_key(tmp_path, "-----BEGIN ENCRYPTED PRIVATE KEY-----\nAAA\n-----END ENCRYPTED PRIVATE KEY-----\n")
prompt = MagicMock(return_value="typed-pass")
result = resolve_ca_passphrase("", str(tmp_path), prompt=prompt)
assert result == "typed-pass"
prompt.assert_called_once()
def test_resolve_empty_string_skips_prompt_when_ca_not_encrypted(tmp_path):
_write_ca_key(tmp_path, "-----BEGIN PRIVATE KEY-----\nAAA\n-----END PRIVATE KEY-----\n")
prompt = MagicMock()
result = resolve_ca_passphrase("", str(tmp_path), prompt=prompt)
assert result == ""
prompt.assert_not_called()
def test_resolve_empty_sentinel_never_checks_or_prompts(tmp_path):
_write_ca_key(tmp_path, "-----BEGIN ENCRYPTED PRIVATE KEY-----\nAAA\n-----END ENCRYPTED PRIVATE KEY-----\n")
prompt = MagicMock()
result = resolve_ca_passphrase("!empty", str(tmp_path), prompt=prompt)
assert result == ""
prompt.assert_not_called()
def test_resolve_ask_sentinel_always_prompts_without_checking(tmp_path):
# no ca.key on disk at all -- must not be checked/read for "!ask"
prompt = MagicMock(return_value="typed-pass")
result = resolve_ca_passphrase("!ask", str(tmp_path), prompt=prompt)
assert result == "typed-pass"
prompt.assert_called_once()
def test_resolve_literal_passphrase_passed_through_unchanged(tmp_path):
prompt = MagicMock()
result = resolve_ca_passphrase("mysecret", str(tmp_path), prompt=prompt)
assert result == "mysecret"
prompt.assert_not_called()