hermes-agent/tests/secret_sources/test_error_remediation.py
Teknium d3b0e61429
feat(secrets): one-command token rotation + actionable startup errors for all secret sources (#68605)
* feat(secrets): one-command token rotation + actionable startup errors for all secret sources

When a Bitwarden machine-account token expired, users saw a raw Rust
error dump (invalid_client + Location: + backtrace hints) and the only
fix was manually editing .env or re-running the whole setup wizard.

- New `hermes secrets bitwarden token` / `hermes secrets onepassword
  token`: paste a new token (masked prompt or flag), the command probes
  the backend BEFORE persisting — a rejected token changes nothing; a
  good one is written to .env and the fetch caches are cleared.
- New optional SecretSource.remediation(kind, cfg) hook: startup
  warnings now print a '→ Run `hermes secrets <name> token`…' fix-it
  line after any fetch error, for bundled AND plugin sources (generic
  per-ErrorKind defaults in the ABC).
- bws stderr is summarized to its cause line (Location:/backtrace noise
  dropped) and invalid_client/invalid_grant/400 identity rejects are
  now classified AUTH_FAILED (was INTERNAL) with a plain-English
  explanation naming the token env var.
- op whoami probe accepts a candidate token so rotation validates the
  NEW credential, not the ambient one.

Additive hook with defaults — no SECRET_SOURCE_API_VERSION bump.

* docs: fix MDX parse error in secret-source-plugin hook table

Escaped backticks around a <name> placeholder made MDX parse it as an
unclosed JSX tag, breaking the docs-site build.  Use a plain code span
instead.
2026-07-21 06:41:04 -07:00

232 lines
8 KiB
Python

"""Error remediation for secret sources.
Covers the ErrorKind classification of Bitwarden's `invalid_client`
identity reject, the bws stderr summarizer, the per-source
``remediation()`` hook, and the env_loader startup hint printer.
"""
from __future__ import annotations
from pathlib import Path
from unittest import mock
import pytest
from agent.secret_sources import bitwarden as bw
from agent.secret_sources import onepassword as op
from agent.secret_sources.base import ErrorKind, SecretSource
from agent.secret_sources.bitwarden import (
BitwardenSource,
_classify_bws_error,
_summarize_bws_stderr,
)
from agent.secret_sources.onepassword import OnePasswordSource
_BWS_INVALID_CLIENT_DUMP = """\
Error:
0: Received error message from server: [400 Bad Request] {"error":"invalid_client"}
Location:
crates/bws/src/main.rs:108
Backtrace omitted. Run with RUST_BACKTRACE=1 environment variable to display it.
Run with RUST_BACKTRACE=full to include source snippets.
"""
# ---------------------------------------------------------------------------
# _summarize_bws_stderr
# ---------------------------------------------------------------------------
def test_summarize_strips_rust_report_noise():
summary = _summarize_bws_stderr(_BWS_INVALID_CLIENT_DUMP)
assert "invalid_client" in summary
assert "Location:" not in summary
assert "main.rs" not in summary
assert "Backtrace" not in summary
assert "Error:" not in summary
def test_summarize_joins_multiple_cause_lines():
raw = "Error:\n 0: outer cause\n 1: inner cause\n\nLocation:\n x.rs:1"
assert _summarize_bws_stderr(raw) == "outer cause; inner cause"
def test_summarize_falls_back_to_raw_on_unknown_shape():
assert _summarize_bws_stderr("plain failure text") == "plain failure text"
assert _summarize_bws_stderr("") == ""
# ---------------------------------------------------------------------------
# _classify_bws_error — the invalid_client identity reject is an auth failure
# ---------------------------------------------------------------------------
@pytest.mark.parametrize("message", [
'bws exited 1: Received error message from server: [400 Bad Request] {"error":"invalid_client"}',
"invalid_grant returned by identity",
"server said 401 unauthorized",
])
def test_classify_auth_failures(message):
assert _classify_bws_error(message) == ErrorKind.AUTH_FAILED
def test_classify_unknown_stays_internal():
assert _classify_bws_error("some novel explosion") == ErrorKind.INTERNAL
# ---------------------------------------------------------------------------
# BitwardenSource.fetch — auth failures get a human explanation
# ---------------------------------------------------------------------------
def test_fetch_auth_failure_gets_friendly_error(monkeypatch, tmp_path):
src = BitwardenSource()
monkeypatch.setenv("BWS_ACCESS_TOKEN", "0.dead")
monkeypatch.setattr(bw, "find_bws", lambda install_if_missing=True: tmp_path / "bws")
def boom(**kwargs):
raise RuntimeError(
'bws exited 1: Received error message from server: '
'[400 Bad Request] {"error":"invalid_client"}'
)
monkeypatch.setattr(bw, "fetch_bitwarden_secrets", boom)
result = src.fetch({"enabled": True, "project_id": "p"}, tmp_path)
assert result.error_kind == ErrorKind.AUTH_FAILED
assert "revoked, expired" in result.error
assert "BWS_ACCESS_TOKEN" in result.error
assert "invalid_client" in result.error # mechanics preserved
# ---------------------------------------------------------------------------
# remediation() hook
# ---------------------------------------------------------------------------
def test_bitwarden_auth_remediation_points_at_token_command():
hint = BitwardenSource().remediation(ErrorKind.AUTH_FAILED, {})
assert "hermes secrets bitwarden token" in hint
def test_onepassword_auth_remediation_points_at_token_command():
hint = OnePasswordSource().remediation(ErrorKind.AUTH_FAILED, {})
assert "hermes secrets onepassword token" in hint
assert "OP_SERVICE_ACCOUNT_TOKEN" in hint
def test_onepassword_remediation_uses_configured_token_env():
hint = OnePasswordSource().remediation(
ErrorKind.AUTH_FAILED, {"service_account_token_env": "MY_OP_TOKEN"}
)
assert "MY_OP_TOKEN" in hint
def test_base_remediation_covers_common_kinds():
class _Src(SecretSource):
name = "dummy"
label = "Dummy"
def fetch(self, cfg, home_path): # pragma: no cover
raise NotImplementedError
src = _Src()
for kind in (ErrorKind.NOT_CONFIGURED, ErrorKind.BINARY_MISSING,
ErrorKind.AUTH_FAILED, ErrorKind.AUTH_EXPIRED,
ErrorKind.NETWORK, ErrorKind.TIMEOUT):
hint = src.remediation(kind, {})
assert hint, f"no default hint for {kind}"
if kind in (ErrorKind.NOT_CONFIGURED, ErrorKind.BINARY_MISSING,
ErrorKind.AUTH_FAILED, ErrorKind.AUTH_EXPIRED):
assert "hermes secrets dummy" in hint
# Kinds without a sensible generic action stay silent.
assert _Src().remediation(ErrorKind.INTERNAL, {}) == ""
assert _Src().remediation(None, {}) == ""
def test_remediation_never_raises_on_junk_cfg():
for cfg in (None, [], "nope", 42):
assert isinstance(BitwardenSource().remediation(ErrorKind.AUTH_FAILED, cfg), str)
assert isinstance(OnePasswordSource().remediation(ErrorKind.AUTH_FAILED, cfg), str)
# ---------------------------------------------------------------------------
# env_loader startup hint
# ---------------------------------------------------------------------------
def test_env_loader_prints_remediation_hint(tmp_path, monkeypatch, capsys):
from hermes_cli import env_loader
from agent.secret_sources import registry
registry._reset_registry_for_tests()
env_loader.reset_secret_source_cache()
home = tmp_path / ".hermes"
home.mkdir()
(home / "config.yaml").write_text(
"secrets:\n"
" bitwarden:\n"
" enabled: true\n"
" project_id: proj\n"
)
monkeypatch.setenv("BWS_ACCESS_TOKEN", "0.dead")
monkeypatch.setattr(bw, "find_bws", lambda install_if_missing=True: tmp_path / "bws")
def boom(**kwargs):
raise RuntimeError(
'bws exited 1: Received error message from server: '
'[400 Bad Request] {"error":"invalid_client"}'
)
monkeypatch.setattr(bw, "fetch_bitwarden_secrets", boom)
try:
env_loader._apply_external_secret_sources(home)
finally:
registry._reset_registry_for_tests()
env_loader.reset_secret_source_cache()
err = capsys.readouterr().err
assert "rejected the machine-account access token" in err
assert "hermes secrets bitwarden token" in err
def test_env_loader_hint_survives_broken_remediation(tmp_path, monkeypatch, capsys):
"""A plugin source whose remediation() raises must not break startup."""
from hermes_cli import env_loader
from agent.secret_sources import registry
class _Broken(SecretSource):
name = "brokensrc"
label = "Broken"
shape = "bulk"
def fetch(self, cfg, home_path):
from agent.secret_sources.base import FetchResult
res = FetchResult()
res.error = "kaput"
res.error_kind = ErrorKind.AUTH_FAILED
return res
def remediation(self, kind, cfg):
raise RuntimeError("hint machine broke")
registry._reset_registry_for_tests()
registry._BUILTINS_LOADED = True # keep real builtins out of this test
registry.register_source(_Broken())
env_loader.reset_secret_source_cache()
home = tmp_path / ".hermes"
home.mkdir()
(home / "config.yaml").write_text(
"secrets:\n brokensrc:\n enabled: true\n"
)
try:
env_loader._apply_external_secret_sources(home)
finally:
registry._reset_registry_for_tests()
env_loader.reset_secret_source_cache()
err = capsys.readouterr().err
assert "kaput" in err # error still surfaced, no crash