Files
siftlode/backend/tests/test_abuse_limits.py
T
peter b7ce1d467c fix(playlists): item writes lock the list first; one bulk pull per user; the claim on its own connection
- Every playlist item write (add, remove, move, reorder, rename; Plex remove and remove-bulk) row-locks
  the playlist before it touches an item, a move both lists in id order: remove beside reorder was a
  deadlock, and two adds of one video a unique-key 500.
- The scheduled mirror refresh re-reads dirty under that lock, so an edit made during its YouTube calls
  is not replaced by YouTube's order.
- A user's bulk pull holds a per-user advisory claim: two at once created duplicate mirrors. The manual
  sync answers 409 sync_all_busy instead of '0 synced', and like the re-pull spends its cooldown only
  on a pull that runs.
- Deleted mirrors are committed at once, not only when a later list commits.
- The claims open an unpooled connection of their own instead of a third pooled one per push.
2026-09-27 19:42:53 +02:00

113 lines
5.0 KiB
Python

"""E12 · S3 — the route-level halves of SEC-12 and SEC-14.
`test_urlguard.py` pins the address judgement itself; this pins that the ENQUEUE route actually
consults it and answers in the structured `{code, reason}` shape the frontend localizes, and that a
manual sync trigger stops spending the instance-wide YouTube budget when held down.
DB-backed (the `as_user` fixture needs real rows) — skipped when no database is reachable.
"""
from app.downloads import urlguard
def test_enqueueing_a_loopback_url_is_refused_with_a_structured_detail(
db, as_user, make_user, monkeypatch
):
user = make_user()
db.commit()
monkeypatch.setattr(
urlguard.socket, "getaddrinfo", lambda *a, **kw: [(None, None, None, "", ("127.0.0.1", 0))]
)
r = as_user(user).post("/api/downloads", json={"source": "http://redis.internal:6379/x"})
assert r.status_code == 422
# The shape matters as much as the refusal: a bare English string under a bilingual UI is the
# thing the canonical-patterns table forbids.
assert r.json()["detail"] == {"code": "url_blocked", "reason": urlguard.REASON_PRIVATE}
def test_a_public_url_gets_past_the_guard(db, as_user, make_user, monkeypatch):
# Mutation check for the test above: with a public answer the request must fail LATER (or
# succeed), never with url_blocked — otherwise the guard would be refusing everything and the
# first test would still pass.
user = make_user()
db.commit()
monkeypatch.setattr(
urlguard.socket,
"getaddrinfo",
lambda *a, **kw: [(None, None, None, "", ("93.184.216.34", 0))],
)
r = as_user(user).post("/api/downloads", json={"source": "https://example.com/v"})
detail = r.json().get("detail") if r.status_code >= 400 else None
assert not (isinstance(detail, dict) and detail.get("code") == "url_blocked")
def test_youtube_sources_never_consult_the_guard(db, as_user, make_user, monkeypatch):
# A YouTube job resolves to a fixed public host from an 11-char id, so there is no
# user-controlled destination — resolving one would be pure latency on every enqueue.
def boom(*a, **kw):
raise AssertionError("the URL guard resolved DNS for a YouTube source")
user = make_user()
db.commit()
monkeypatch.setattr(urlguard.socket, "getaddrinfo", boom)
as_user(user).post("/api/downloads", json={"source": "dQw4w9WgXcQ"})
def test_manual_subscription_sync_goes_on_cooldown(db, as_user, make_user, monkeypatch):
from app.routes import sync as syncroutes
user = make_user()
db.commit()
# Neither the YouTube grant nor the import itself is under test — the limiter is.
monkeypatch.setattr(syncroutes, "has_read_scope", lambda u: True)
monkeypatch.setattr(syncroutes, "import_subscriptions", lambda d, u: {"imported": 0})
c = as_user(user)
codes = [c.post("/api/sync/subscriptions").status_code for _ in range(4)]
# 3 per 10 minutes: the first three pass, the fourth is refused.
assert codes[:3] == [200, 200, 200]
assert codes[3] == 429
assert c.post("/api/sync/subscriptions").json()["detail"] == {"code": "sync_cooldown"}
def test_the_cooldown_is_per_user_not_global(db, as_user, make_user, monkeypatch):
# Keyed by user id on purpose: the shared YouTube budget is spent per account, and one user
# exhausting their allowance must not lock everyone else out of their own sync button.
from app.routes import sync as syncroutes
a, b = make_user(), make_user()
db.commit()
monkeypatch.setattr(syncroutes, "has_read_scope", lambda u: True)
monkeypatch.setattr(syncroutes, "import_subscriptions", lambda d, u: {"imported": 0})
ca = as_user(a)
for _ in range(4):
ca.post("/api/sync/subscriptions")
assert ca.post("/api/sync/subscriptions").status_code == 429
assert as_user(b).post("/api/sync/subscriptions").status_code == 200
def test_the_single_playlist_repull_shares_the_pull_cooldown(db, as_user, make_user, monkeypatch):
# SEC-14, the sweep half: `revert-youtube` spends under the SAME QuotaAction.PLAYLISTS_PULL key
# as the bulk `sync-youtube`, so limiting only one of them left the identical drain open one
# route over. Both must draw on the one allowance.
from app.models import Playlist
from app.routes import playlists as plroutes
user = make_user()
pl = Playlist(user_id=user.id, name="Linked", source="youtube", yt_playlist_id="PL123")
db.add(pl)
db.commit()
monkeypatch.setattr(plroutes, "has_read_scope", lambda u: True)
monkeypatch.setattr(plroutes, "repull_playlist", lambda d, u, p: {"ok": True})
monkeypatch.setattr(plroutes, "pull_user_playlists", lambda d, u: {"ok": True})
c = as_user(user)
codes = [c.post(f"/api/playlists/{pl.id}/revert-youtube").status_code for _ in range(4)]
assert codes[:3] == [200, 200, 200]
assert codes[3] == 429
# One allowance, not one each: the bulk route is now on cooldown too.
r = c.post("/api/playlists/sync-youtube")
assert r.status_code == 429
assert r.json()["detail"] == {"code": "sync_cooldown"}