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bot-bottle/tests/unit/test_egress_addon_log_redaction.py
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fix: satisfy pyright for log redaction tests
2026-06-25 00:32:42 -04:00

275 lines
9.6 KiB
Python

"""Unit: LOG_FULL credential redaction in _log_request / _log_response (issue #257).
egress_addon.py is sidecar-only code that depends on mitmproxy, which is
not installed on the host. This file pre-populates sys.modules with the
minimum mocks needed so EgressAddon can be imported and tested without the
real mitmproxy package."""
from __future__ import annotations
import json
import sys
import types
import unittest
from io import StringIO
from typing import Any
from unittest.mock import patch
# ---------------------------------------------------------------------------
# Sidecar-import shims — must run before importing egress_addon
# ---------------------------------------------------------------------------
def _ensure_shims() -> None:
if "mitmproxy" not in sys.modules:
_mm = types.ModuleType("mitmproxy")
_mh = types.ModuleType("mitmproxy.http")
setattr(_mm, "http", _mh)
sys.modules["mitmproxy"] = _mm
sys.modules["mitmproxy.http"] = _mh
if "egress_addon_core" not in sys.modules:
import bot_bottle.egress_addon_core as _core
sys.modules["egress_addon_core"] = _core
_ensure_shims()
from bot_bottle.egress_addon import EgressAddon # noqa: E402 (import after shims)
from bot_bottle.egress_addon_core import Config, LOG_FULL # noqa: E402
# ---------------------------------------------------------------------------
# Helpers
# ---------------------------------------------------------------------------
def _addon() -> EgressAddon:
"""Return a bare EgressAddon with LOG_FULL config and no routes file."""
a: EgressAddon = EgressAddon.__new__(EgressAddon)
a.config = Config(routes=(), log=LOG_FULL)
a.safe_tokens = set()
a._supervise_queue_dir = ""
a._supervise_slug = ""
a._token_allow_timeout = 300.0
return a
class _Headers:
def __init__(self, d: dict[str, str]) -> None:
self._d = d
def items(self) -> list[tuple[str, str]]:
return list(self._d.items())
class _Request:
def __init__(
self,
host: str = "api.example.com",
method: str = "POST",
path: str = "/v1/messages",
headers: dict[str, str] | None = None,
body: str = "",
) -> None:
self.pretty_host = host
self.method = method
self.path = path
self.headers = _Headers(headers or {})
self._body = body
def get_text(self, *, strict: bool = True) -> str:
return self._body
class _Response:
def __init__(
self,
status_code: int = 200,
headers: dict[str, str] | None = None,
body: str = "",
) -> None:
self.status_code = status_code
self.headers = _Headers(headers or {})
self._body = body
def get_text(self, *, strict: bool = True) -> str:
return self._body
class _Flow:
def __init__(
self,
request: _Request | None = None,
response: _Response | None = None,
) -> None:
self.request = request or _Request()
self.response = response or _Response()
def _log_request(addon: EgressAddon, flow: _Flow) -> dict[str, Any]:
buf = StringIO()
with patch("sys.stderr", buf):
addon._log_request(flow) # type: ignore[arg-type]
return json.loads(buf.getvalue())
def _log_response(addon: EgressAddon, flow: _Flow) -> dict[str, Any]:
buf = StringIO()
with patch("sys.stderr", buf):
addon._log_response(flow) # type: ignore[arg-type]
return json.loads(buf.getvalue())
# ---------------------------------------------------------------------------
# _log_request — authorization header stripped
# ---------------------------------------------------------------------------
class TestLogRequestAuthorizationStripped(unittest.TestCase):
def test_lowercase_authorization_excluded(self) -> None:
addon = _addon()
flow = _Flow(request=_Request(headers={"authorization": "Bearer sk-real-secret"}))
entry = _log_request(addon, flow)
self.assertNotIn("authorization", entry["headers"])
def test_titlecase_authorization_excluded(self) -> None:
addon = _addon()
flow = _Flow(request=_Request(headers={"Authorization": "Bearer sk-real-secret"}))
entry = _log_request(addon, flow)
self.assertNotIn("Authorization", entry["headers"])
self.assertNotIn("authorization", entry["headers"])
def test_non_auth_headers_retained(self) -> None:
addon = _addon()
flow = _Flow(request=_Request(headers={
"authorization": "Bearer sk-real-secret",
"content-type": "application/json",
}))
entry = _log_request(addon, flow)
self.assertIn("content-type", entry["headers"])
self.assertEqual("application/json", entry["headers"]["content-type"])
def test_no_authorization_header_logs_all_others(self) -> None:
addon = _addon()
flow = _Flow(request=_Request(headers={"x-request-id": "abc"}))
entry = _log_request(addon, flow)
self.assertEqual({"x-request-id": "abc"}, entry["headers"])
# ---------------------------------------------------------------------------
# _log_request — body redaction
# ---------------------------------------------------------------------------
_OPENAI_KEY = "sk-" + "A" * 48
class TestLogRequestBodyRedacted(unittest.TestCase):
def test_token_pattern_in_body_scrubbed(self) -> None:
addon = _addon()
flow = _Flow(request=_Request(body=f"key={_OPENAI_KEY}"))
entry = _log_request(addon, flow)
self.assertNotIn(_OPENAI_KEY, entry["body"])
self.assertIn("********", entry["body"])
def test_provisioned_secret_in_body_scrubbed(self) -> None:
addon = _addon()
secret = "provisioned-egress-secret-xyz"
flow = _Flow(request=_Request(body=f"token={secret}"))
with patch.dict("os.environ", {"EGRESS_TOKEN_0": secret}):
entry = _log_request(addon, flow)
self.assertNotIn(secret, entry["body"])
self.assertIn("********", entry["body"])
def test_clean_body_preserved(self) -> None:
addon = _addon()
payload = '{"model": "claude-3", "max_tokens": 1024}'
flow = _Flow(request=_Request(body=payload))
entry = _log_request(addon, flow)
self.assertEqual(payload, entry["body"])
# ---------------------------------------------------------------------------
# _log_request — non-authorization header value redaction
# ---------------------------------------------------------------------------
class TestLogRequestHeaderValuesRedacted(unittest.TestCase):
def test_token_in_custom_header_scrubbed(self) -> None:
addon = _addon()
flow = _Flow(request=_Request(headers={"x-api-key": _OPENAI_KEY}))
entry = _log_request(addon, flow)
self.assertNotIn(_OPENAI_KEY, entry["headers"].get("x-api-key", ""))
self.assertIn("********", entry["headers"].get("x-api-key", ""))
def test_clean_header_value_preserved(self) -> None:
addon = _addon()
flow = _Flow(request=_Request(headers={"accept": "application/json"}))
entry = _log_request(addon, flow)
self.assertEqual("application/json", entry["headers"]["accept"])
# ---------------------------------------------------------------------------
# _log_response — body redaction
# ---------------------------------------------------------------------------
class TestLogResponseBodyRedacted(unittest.TestCase):
def test_token_pattern_in_response_body_scrubbed(self) -> None:
addon = _addon()
flow = _Flow(
request=_Request(),
response=_Response(body=f'{{"key": "{_OPENAI_KEY}"}}'),
)
entry = _log_response(addon, flow)
self.assertNotIn(_OPENAI_KEY, entry["body"])
self.assertIn("********", entry["body"])
def test_provisioned_secret_in_response_body_scrubbed(self) -> None:
addon = _addon()
secret = "provisioned-egress-secret-xyz"
flow = _Flow(
request=_Request(),
response=_Response(body=f'{{"token": "{secret}"}}'),
)
with patch.dict("os.environ", {"EGRESS_TOKEN_0": secret}):
entry = _log_response(addon, flow)
self.assertNotIn(secret, entry["body"])
self.assertIn("********", entry["body"])
def test_clean_response_body_preserved(self) -> None:
addon = _addon()
flow = _Flow(request=_Request(), response=_Response(body='{"result": "ok"}'))
entry = _log_response(addon, flow)
self.assertEqual('{"result": "ok"}', entry["body"])
# ---------------------------------------------------------------------------
# _log_response — response header value redaction
# ---------------------------------------------------------------------------
class TestLogResponseHeaderValuesRedacted(unittest.TestCase):
def test_token_in_response_header_scrubbed(self) -> None:
addon = _addon()
flow = _Flow(
request=_Request(),
response=_Response(headers={"set-cookie": f"token={_OPENAI_KEY}"}),
)
entry = _log_response(addon, flow)
cookie_val = entry["headers"].get("set-cookie", "")
self.assertNotIn(_OPENAI_KEY, cookie_val)
self.assertIn("********", cookie_val)
def test_clean_response_header_preserved(self) -> None:
addon = _addon()
flow = _Flow(
request=_Request(),
response=_Response(headers={"content-type": "application/json"}),
)
entry = _log_response(addon, flow)
self.assertEqual("application/json", entry["headers"]["content-type"])
if __name__ == "__main__":
unittest.main()