headroom/tests/test_identity_resolution.py
Tejas Chopra 1f96dabc19
fix(security): address u9up assessment findings (WEB-01–07) (#2207)
Hardens client-selected upstreams, memory identity resolution, downloaded binary integrity, telemetry import, Docker defaults, Neo4j credentials, and archive extraction. Refreshes the branch against current main and preserves newer same-origin and loopback protections.
2026-08-20 09:02:44 -05:00

68 lines
2.3 KiB
Python

"""Tests for memory-partition identity resolution (WEB-02)."""
from __future__ import annotations
import pytest
from headroom.proxy import identity
from headroom.proxy.identity import resolve_memory_identity, set_identity_resolver
class _FakeRequest:
def __init__(self, headers: dict[str, str], host: str | None) -> None:
self.headers = headers
self.client = type("_Client", (), {"host": host})() if host is not None else None
@pytest.fixture(autouse=True)
def _clean_env(monkeypatch: pytest.MonkeyPatch):
monkeypatch.delenv("HEADROOM_PROXY_TOKEN", raising=False)
set_identity_resolver(None)
yield
set_identity_resolver(None)
def test_loopback_trusts_header() -> None:
req = _FakeRequest({"x-headroom-user-id": "alice"}, "127.0.0.1")
assert resolve_memory_identity(req) == "alice"
def test_non_loopback_ignores_header() -> None:
req = _FakeRequest({"x-headroom-user-id": "victim@corp"}, "10.0.0.5")
assert resolve_memory_identity(req, default="me") == "me"
def test_missing_peer_metadata_does_not_trust_header() -> None:
req = _FakeRequest({"x-headroom-user-id": "victim@corp"}, None)
assert resolve_memory_identity(req, default="me") == "me"
def test_non_loopback_binds_to_token(monkeypatch: pytest.MonkeyPatch) -> None:
monkeypatch.setenv("HEADROOM_PROXY_TOKEN", "s3cret")
req = _FakeRequest({"x-headroom-user-id": "victim@corp"}, "10.0.0.5")
got = resolve_memory_identity(req, default="me")
assert got.startswith("tok_")
assert got not in {"victim@corp", "me"}
def test_legacy_user_id_allowlist_cannot_authorize_remote_claim(
monkeypatch: pytest.MonkeyPatch,
) -> None:
monkeypatch.setenv("HEADROOM_USER_ID_ALLOWLIST", "alice,bob")
assert (
resolve_memory_identity(
_FakeRequest({"x-headroom-user-id": "alice"}, "10.0.0.5"), default="me"
)
== "me"
)
def test_custom_resolver_wins() -> None:
set_identity_resolver(lambda request, *, default: "tenant-42")
req = _FakeRequest({"x-headroom-user-id": "whatever"}, "10.0.0.5")
assert resolve_memory_identity(req) == "tenant-42"
def test_no_header_uses_default() -> None:
assert resolve_memory_identity(_FakeRequest({}, "127.0.0.1"), default="") == ""
assert identity._default_os_user() # never empty