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FabledCurator/tests/test_credential_service.py
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fix(audit-g5c): refuse silent Fernet key regeneration on partial restore
Audit 2026-06-02: `_load_or_create_key` silently minted a new Fernet
key whenever the key file was missing — no log, no warning. The
failure mode the audit flagged: a partial disaster restore where the
DB was restored but `/images/secrets/` was lost would produce a
working-looking system in which every authenticated download fails
AUTH_ERROR until the operator re-uploads every credential by hand.

Two opt-ins now needed for auto-creation:
  1. Explicit `bootstrap_ok=True` kwarg (tests, scripts), OR
  2. `CURATOR_BOOTSTRAP_NEW_KEY=1` env var (operator first-time setup)

Otherwise the constructor raises `MissingCredentialKey` so the app
fails fast at startup and the operator can restore the key file
from backup before encrypted_blob rows go undecryptable.

Also: docstring path was wrong (said "images/data root" but actual
location is `/images/secrets/credential_key.b64`) — corrected.

Tests updated to pass `bootstrap_ok=True` explicitly, and two new
tests cover the safety behavior (missing-key-raises, env-var-bootstraps).
2026-06-02 17:04:27 -04:00

233 lines
9.4 KiB
Python

import pytest
from sqlalchemy import select
from backend.app.models import Credential
from backend.app.services.credential_crypto import CredentialCrypto
from backend.app.services.credential_service import (
CredentialService,
EmptyDataError,
UnknownPlatformError,
WrongAuthTypeError,
)
pytestmark = pytest.mark.integration
_NETSCAPE = (
"# Netscape HTTP Cookie File\n"
".patreon.com\tTRUE\t/\tTRUE\t1700000000\tsession_id\tabc\n"
)
@pytest.fixture
def crypto(tmp_path):
return CredentialCrypto(tmp_path / "k", bootstrap_ok=True)
@pytest.mark.asyncio
async def test_upsert_creates_then_updates(db, crypto):
svc = CredentialService(db, crypto)
rec = await svc.upsert(
platform="patreon", credential_type="cookies", data=_NETSCAPE,
)
assert rec.platform == "patreon"
assert rec.credential_type == "cookies"
again = await svc.upsert(
platform="patreon", credential_type="cookies", data=_NETSCAPE + "x",
)
assert again.platform == "patreon"
rows = (await db.execute(
select(Credential).where(Credential.platform == "patreon")
)).scalars().all()
assert len(rows) == 1
@pytest.mark.asyncio
async def test_upsert_rejects_unknown_platform(db, crypto):
svc = CredentialService(db, crypto)
with pytest.raises(UnknownPlatformError):
await svc.upsert(platform="fanbox", credential_type="cookies", data="x")
@pytest.mark.asyncio
async def test_upsert_rejects_wrong_auth_type(db, crypto):
svc = CredentialService(db, crypto)
# discord is token-only
with pytest.raises(WrongAuthTypeError):
await svc.upsert(platform="discord", credential_type="cookies", data="x")
# patreon is cookies-only
with pytest.raises(WrongAuthTypeError):
await svc.upsert(platform="patreon", credential_type="token", data="x")
@pytest.mark.asyncio
async def test_upsert_rejects_empty_data(db, crypto):
svc = CredentialService(db, crypto)
with pytest.raises(EmptyDataError):
await svc.upsert(platform="patreon", credential_type="cookies", data=" ")
@pytest.mark.asyncio
async def test_list_excludes_blob(db, crypto):
svc = CredentialService(db, crypto)
await svc.upsert(platform="patreon", credential_type="cookies", data=_NETSCAPE)
records = await svc.list()
assert len(records) == 1
d = records[0].to_dict()
assert "data" not in d
assert "encrypted_blob" not in d
@pytest.mark.asyncio
async def test_delete(db, crypto):
svc = CredentialService(db, crypto)
await svc.upsert(platform="patreon", credential_type="cookies", data=_NETSCAPE)
await svc.delete("patreon")
assert await svc.get("patreon") is None
@pytest.mark.asyncio
async def test_get_cookies_path_writes_usable_file(db, crypto, tmp_path):
svc = CredentialService(db, crypto, cookies_dir=tmp_path / "cookies")
await svc.upsert(platform="patreon", credential_type="cookies", data=_NETSCAPE)
path = await svc.get_cookies_path("patreon")
assert path is not None and path.exists()
contents = path.read_text()
assert ".patreon.com" in contents
assert "session_id" in contents
@pytest.mark.asyncio
async def test_get_cookies_path_none_for_missing(db, crypto, tmp_path):
svc = CredentialService(db, crypto, cookies_dir=tmp_path)
assert await svc.get_cookies_path("patreon") is None
@pytest.mark.asyncio
async def test_get_cookies_path_none_for_token_kind(db, crypto, tmp_path):
svc = CredentialService(db, crypto, cookies_dir=tmp_path)
await svc.upsert(platform="discord", credential_type="token", data="tok")
assert await svc.get_cookies_path("discord") is None
@pytest.mark.asyncio
async def test_get_cookies_path_subscribestar_injects_age_cookie(db, crypto, tmp_path):
"""SubscribeStar's server gates artist pages behind a _personalization_id
cookie; the browser-stored cookie expires annually and can't be easily
refreshed (the JS age popup is suppressed by localStorage). Mirror
gallery-dl's own login-flow workaround by injecting
`18_plus_agreement_generic=true` on `.subscribestar.adult` whenever
cookies for subscribestar are materialized."""
netscape_in = (
"# Netscape HTTP Cookie File\n"
".subscribestar.adult\tTRUE\t/\tTRUE\t1700000000\tsession_id\txyz\n"
)
svc = CredentialService(db, crypto, cookies_dir=tmp_path / "cookies")
await svc.upsert(platform="subscribestar", credential_type="cookies", data=netscape_in)
path = await svc.get_cookies_path("subscribestar")
contents = path.read_text()
assert "18_plus_agreement_generic\ttrue" in contents
assert ".subscribestar.adult" in contents
# Original session_id cookie preserved.
assert "session_id\txyz" in contents
@pytest.mark.asyncio
async def test_get_cookies_path_subscribestar_idempotent_when_present(db, crypto, tmp_path):
"""If the operator's captured cookies ALREADY contain the age cookie
(e.g. a manual paste, or a re-login), don't double-inject."""
netscape_in = (
"# Netscape HTTP Cookie File\n"
".subscribestar.adult\tTRUE\t/\tTRUE\t1700000000\t18_plus_agreement_generic\ttrue\n"
".subscribestar.adult\tTRUE\t/\tTRUE\t1700000000\tsession_id\txyz\n"
)
svc = CredentialService(db, crypto, cookies_dir=tmp_path / "cookies")
await svc.upsert(platform="subscribestar", credential_type="cookies", data=netscape_in)
path = await svc.get_cookies_path("subscribestar")
contents = path.read_text()
assert contents.count("18_plus_agreement_generic") == 1
@pytest.mark.asyncio
async def test_get_cookies_path_non_subscribestar_unchanged(db, crypto, tmp_path):
"""The age-cookie injection MUST NOT fire for non-subscribestar
platforms — Patreon/etc. don't need it and shouldn't carry a
foreign-domain cookie in their cookies.txt."""
svc = CredentialService(db, crypto, cookies_dir=tmp_path / "cookies")
await svc.upsert(platform="patreon", credential_type="cookies", data=_NETSCAPE)
path = await svc.get_cookies_path("patreon")
contents = path.read_text()
assert "18_plus_agreement_generic" not in contents
assert "subscribestar" not in contents
@pytest.mark.asyncio
async def test_get_cookies_path_hf_injects_host_only_phpsessid(db, crypto, tmp_path):
"""HF: extension writes session cookies as subdomain-wide
(`.hentai-foundry.com`), but gallery-dl's extractor uses
`cookies.get(name, domain='www.hentai-foundry.com')` with EXACT
domain matching. Emit host-only duplicates of PHPSESSID +
YII_CSRF_TOKEN on `www.hentai-foundry.com` so the lookup matches."""
netscape_in = (
"# Netscape HTTP Cookie File\n"
".hentai-foundry.com\tTRUE\t/\tTRUE\t1900000000\tPHPSESSID\tsess123\n"
".hentai-foundry.com\tTRUE\t/\tTRUE\t1900000000\tYII_CSRF_TOKEN\ttoken456\n"
)
svc = CredentialService(db, crypto, cookies_dir=tmp_path / "cookies")
await svc.upsert(platform="hentaifoundry", credential_type="cookies", data=netscape_in)
path = await svc.get_cookies_path("hentaifoundry")
contents = path.read_text()
# Subdomain-wide originals preserved.
assert ".hentai-foundry.com\tTRUE\t/\tTRUE\t1900000000\tPHPSESSID\tsess123" in contents
# Host-only duplicates appended for both names.
assert "www.hentai-foundry.com\tFALSE\t/\tTRUE\t1900000000\tPHPSESSID\tsess123" in contents
assert "www.hentai-foundry.com\tFALSE\t/\tTRUE\t1900000000\tYII_CSRF_TOKEN\ttoken456" in contents
@pytest.mark.asyncio
async def test_get_cookies_path_hf_idempotent_when_host_only_present(db, crypto, tmp_path):
"""If the captured cookies already include a host-only PHPSESSID
on www.hentai-foundry.com (e.g. a future extension fix that
preserves browser hostOnly state), don't double-inject."""
netscape_in = (
"# Netscape HTTP Cookie File\n"
".hentai-foundry.com\tTRUE\t/\tTRUE\t1900000000\tPHPSESSID\tsess123\n"
"www.hentai-foundry.com\tFALSE\t/\tTRUE\t1900000000\tPHPSESSID\tsess123\n"
)
svc = CredentialService(db, crypto, cookies_dir=tmp_path / "cookies")
await svc.upsert(platform="hentaifoundry", credential_type="cookies", data=netscape_in)
path = await svc.get_cookies_path("hentaifoundry")
contents = path.read_text()
# Should count PHPSESSID exactly twice — the original two lines, no third.
assert contents.count("PHPSESSID\tsess123") == 2
@pytest.mark.asyncio
async def test_get_cookies_path_hf_ignores_unrelated_cookies(db, crypto, tmp_path):
"""The injection should only target session/CSRF cookies. Other HF
cookies (e.g. analytics) stay subdomain-wide as captured."""
netscape_in = (
"# Netscape HTTP Cookie File\n"
".hentai-foundry.com\tTRUE\t/\tTRUE\t1900000000\t_ga\tGA1.2.x\n"
)
svc = CredentialService(db, crypto, cookies_dir=tmp_path / "cookies")
await svc.upsert(platform="hentaifoundry", credential_type="cookies", data=netscape_in)
path = await svc.get_cookies_path("hentaifoundry")
contents = path.read_text()
assert "www.hentai-foundry.com" not in contents
assert contents.count("_ga") == 1
@pytest.mark.asyncio
async def test_get_token_decrypts(db, crypto):
svc = CredentialService(db, crypto)
await svc.upsert(platform="discord", credential_type="token", data="my-token")
assert await svc.get_token("discord") == "my-token"
@pytest.mark.asyncio
async def test_get_token_none_for_cookies_kind(db, crypto):
svc = CredentialService(db, crypto)
await svc.upsert(platform="patreon", credential_type="cookies", data=_NETSCAPE)
assert await svc.get_token("patreon") is None