Address claude-review round 10 (Option B): pin the empty-scope contract for
userinfo-validated tokens in test_mgmt_opaque_userinfo_fallback_accepted_despite_allowlist,
so a future @require_scopes on a management endpoint that would silently reject
cross-client callers is caught by a test rather than only the docstring.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address claude-review round 9 on #919: an empty ALLOWED_MGMT_CLIENT is no longer
a kill switch when userinfo_uri is configured (opaque tokens validated via the
userinfo fallback bypass the allowlist). Distinguish the two cases in the
startup warning so operators aren't surprised that Astrolabe tokens are still
accepted.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address claude-review round 8 on #919:
- Security-model docstring: note that opaque cross-client tokens authenticate
via the userinfo liveness check (not JWKS/expiry) and bypass the client
allowlist, with per-user authz as the gate.
- Remove the redundant `if not payload: return None` after the JWT/opaque
branches (both already return None on failure) — replace with a comment.
- Add test_mcp_path_does_not_use_userinfo_for_opaque_token to pin that the
userinfo fallback is management-path-only (MCP path still 401s).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address claude-review round 7 nits on #919:
- Add test_validate_via_userinfo_rejects_non_http_scheme — a non-http(s)
userinfo_uri is refused before any request (covers the SSRF scheme guard).
- Docstring caution on _validate_via_userinfo: userinfo-validated tokens carry
empty scopes, so management endpoints must not gate on scopes for this path.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address claude-review round 6 (LGTM) nits on #919:
- test_userinfo_token_cached_with_short_ttl and
test_userinfo_token_with_exp_uses_real_expiry call only the sync
_create_access_token_with_cache_key — declare them as plain def (no await).
- Comment the userinfo_uri guard in _validate_via_userinfo as defensive /
direct-call support (the management caller already gates on userinfo_uri).
Left as-is: the hasattr(settings, "userinfo_uri") guard — kept to mirror the
adjacent introspection_uri block (consistency requested in round 2). The
_verify_mcp_audience metric-when-unconfigured note is a pre-existing, out-of-
scope item for a follow-up.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address claude-review round 5 on #919:
- The "userinfo has no exp; caching for Ns only" log fired on every fresh
userinfo validation (userinfo never returns exp) — downgrade WARNING → DEBUG;
the bounded-staleness window is already documented on _validate_via_userinfo.
- Add test_introspection_timeout_falls_through_to_userinfo: drives a real
introspection timeout (httpx.TimeoutException on the POST, caught inside
_introspect_token → None) through to a successful userinfo validation,
pinning the documented error fall-through end to end.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address claude-review round 4 on #919:
- Functional concern: document that _introspect_token returns None for both an
active=false response (the cross-client case we must handle) AND a network
error, so both fall through to userinfo. This is safe — userinfo is itself an
authoritative live check, so a flapping introspection endpoint can't cause an
invalid token to be accepted.
- Observability nit: only record a ("userinfo", ...) metric when userinfo was
actually attempted (userinfo_uri configured); a no-validators-configured
opaque token now returns None without a misleading userinfo-failure metric.
Added test_opaque_rejected_when_no_validators_configured.
- Added a comment on the post-validation cache re-read explaining why the entry
is always present (write-then-read with no await between).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address claude-review round 3 on #919:
- Log spam: the userinfo allowlist-relaxation notice fired at WARNING on every
request (incl. cache hits — frequent Astrolabe polling). Warn once on fresh
validation; cache-hit re-validations now log at DEBUG.
- Test: add coverage for a userinfo response that DOES carry `exp` — the real
token expiry must win over the short userinfo TTL.
Not changed:
- USERINFO_URI auto-discovery: already auto-populated from the OIDC discovery
document in app.py (settings.userinfo_uri = discovery["userinfo_endpoint"],
mirroring jwks_uri/introspection_uri), so OIDC_DISCOVERY_URL deployments need
no extra env var. The reviewer's note only inspected config.py.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address claude-review round 2 on #919:
- Anti-forgery: the `_auth_via_userinfo` allowlist-bypass flag is now sourced
ONLY from an explicit in-process `via_userinfo` argument (derived from how
the token was validated), never from the IdP payload. The payload claim is
stripped from the cached entry, so a malicious introspection/userinfo
response can't forge the bypass. Added a regression test.
- SSRF (CWE-918): guard the userinfo_uri scheme (http/https) before the request
— documents the trusted-source assumption and fails fast on misconfig.
- Introspection-unconfigured: only attempt introspection (and record its
metric) when an introspection endpoint is configured; otherwise go straight
to userinfo. Avoids mislabelled introspect-invalid metrics. Added a test.
- Tests: cache-hit test now seeds via a real first call (behavior, not cache
internals) and asserts the network is probed once; short-TTL test uses the
explicit via_userinfo arg; moved hashlib usage out.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Round-5 review nit on PR #920 (non-blocking): record_document_dead_lettered
increments alongside the fail-safe mark_dead_letter, so the counter measures the
dead-letter attempt and can sit marginally above the live marker count if a
Qdrant write fails. Note it in the docstring.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Round-4 review nits on PR #920 (none blocking):
- record_document_dead_lettered: enumerate the oversize reason (added this PR)
alongside timeout/oom/error in the docstring + counter comment.
- Note the clear-dead-letter-before-upsert ordering implication (a transient
upsert failure re-parses once, never a silent drop).
- Clarify the orphan sweep's kept counter for tenant-wide dead-letter markers.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Round-3 review nits on PR #920 (none blocking):
- escalation_tiers_signature: TODO noting future settings that can rescue a
previously-terminal document (a toggleable llm tier, a raised oversize cap)
should be folded into the signature so raising them auto-retries dead-letters.
- Terminal-path placeholder cleanup: a delete failure here is real Qdrant I/O,
not control-flow -- log at warning (was debug) for observability. Non-fatal
(the durable marker is already written).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Addresses round-2 review on PR #920:
- Only dead-letter a terminal failure when the file has an etag to
content-address the marker; without one, fall back to the legacy per-user
placeholder mark (an etagless marker is unmatchable). + test.
- _dead_letter_filter now also matches is_placeholder=True (redundant with
dead_letter=True but lets Qdrant use the is_placeholder payload index).
- TODO(deck-349) documenting the dead-lettered-then-deleted orphan-marker leak
(out of scope; needs a marker sweep or TTL field) per reviewer.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Addresses round-1 review on PR #920:
- Delete path now clears the file's dead-letter marker after
release_document_for_user (whose principal-based filter misses the
user-agnostic, principal-less marker), preventing orphan-marker accumulation
for dead-lettered-then-deleted files.
- Oversize PDFs (rejected by the pre-parse size guard, no pipeline_tier stamped)
are now treated as terminal regardless of failing_tier -- no tier can parse an
oversize file -- so they dead-letter instead of falling to the legacy per-user
mark on the inline path.
- Gate the success-path clear on a non-empty etag (an etag-less file can never
have a marker, mirroring is_dead_lettered's early return).
- dead_letter.py: payload typed dict[str, Any] (CLAUDE.md).
Tests: oversize-terminal dead-letter and delete-path marker clear.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
A pathological PDF (a 206-page ChronoScan scan with ~3400 JBIG2/JPX images)
jammed a tenant's structured ingest worker in an infinite reprocess loop,
re-burning a 120s pymupdf4llm parse (and occasionally OOM-racing the 2Gi pod)
every few minutes.
Root cause: the per-user placeholder "failed" mark could not stop the loop. The
placeholder point ID is user-agnostic (uuid5("file:<doc_id>:placeholder")) but
the scanner's freshness gate, query, and status update all filter by user_id.
For a file visible to several users the single shared placeholder's user_id is
overwritten by whoever scanned last, so every other user's scan sees "no record"
and re-queues -- an N-user ping-pong that never honours the failed status.
Fix: when a parse fails terminally (no higher escalation tier available, e.g.
structured with OCR off) record a durable, content-addressed, user-agnostic
dead-letter marker (mirrors vector/sharing_state.py). The scanner consults it
tenant-wide for every user and skips re-queuing until the content (etag) OR the
escalation-tier set (tiers_sig -- e.g. OCR enabled) changes, so the document is
attempted once per content-version instead of forever.
- new vector/dead_letter.py: mark/is/clear, content-addressed marker carrying
is_placeholder=True (inherits search exclusion) + dead_letter=True
- escalation.escalation_tiers_signature(settings): retry-on-tier-change key
- processor: dead-letter terminal failures, clear on successful (re-)index
- scanner: user-agnostic is_dead_lettered skip beside claim_existing_index
- placeholder: exempt dead_letter markers from the orphan sweep (durability)
- metrics: astrolabe_document_dead_lettered_total{reason}
Deck #349.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address claude-review round 1 on #919:
- Security: userinfo responses carry no `exp`, so userinfo-validated opaque
tokens were cached for the 1h default TTL — a revoked/expired token could be
honored for up to an hour. Cache them for `userinfo_cache_ttl` (5 min)
instead, and document the bounded-staleness window in the docstring.
- Metrics: when introspection AND userinfo both fail, record
("introspect","invalid") + ("userinfo","invalid") separately and set
validation_method="userinfo" before the userinfo call so a userinfo
exception caught by the outer handler is attributed correctly.
- Style: use the hasattr(...) + truthy pattern for userinfo_uri, matching the
introspection block above it.
- Tests: cache-hit allowlist bypass for via-userinfo tokens; short-TTL
assertion; userinfo timeout / connect-error / malformed-JSON fail-closed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The management API (used by the Astrolabe PHP app for /api/v1/apps and
/api/v1/webhooks) only accepted JWT access tokens. Opaque tokens were
sent to Nextcloud's oidc introspection endpoint, which returns
`active: false` for tokens minted for a *different* OIDC client (e.g.
Astrolabe) even when they are live — so every call 401'd. This surfaced
on the nx101294 tenant: webhook setup failed and the webhook-preset UI
(including the Files preset) showed empty, because getWebhookPresets
errors out before its `files`-always-available filter runs.
Add a userinfo-endpoint fallback in UnifiedTokenVerifier: when
introspection reports an opaque token inactive, validate it against the
discovered userinfo_endpoint (a 200 with a `sub` proves a live bearer
regardless of issuing client). userinfo returns no client_id/scope, so
such tokens are stamped `_auth_via_userinfo` and the ALLOWED_MGMT_CLIENT
allowlist is relaxed for that path only — authorization is still
enforced per-user (token sub == requested resource owner) by every
management endpoint. JWT and introspection paths are unchanged and still
enforce the allowlist.
Also bumps the astrolabe submodule to 0.29.0 (the deployed version that
exhibits the issue).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The client registry derived display names from a hardcoded map of
"well-known" MCP clients (claude-desktop, claude-ai, continue-dev,
zed-editor, vscode-mcp). This baked a recognized-client list into the
server even though admission already requires explicit opt-in via
ALLOWED_MCP_CLIENTS (fail-closed when unset).
Mirror the management-API surface (ALLOWED_MGMT_CLIENT), which has no
built-in client list: remove the map and derive the display name
generically from the client_id. Default remains none; clients must be
added explicitly and DCR stays off unless ENABLE_DCR=true.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address round-4 review on PR #914:
- glyph_corruption_ratio <= 0 now disables the signal (previously `control_ratio
> 0` fired on any single C0 control byte), matching the "0 disables" convention
used elsewhere (document_max_pdf_size_mb) and the config comment. Add a
zero-disables test.
- Correct the document_escalation_suppressed_total comment: corrupt_glyphs CAN
appear there in the narrow case where structured is unregistered and OCR is
registered-but-disabled (evaluate_escalation follows minimum="structured" past
the missing rung to a gated-off OCR). Add a test for that suppressed decision.
- Add a test for the double-corruption edge: a structured re-extract that is also
glyph-corrupt escalates structured->ocr with reason corrupt_glyphs.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address round-3 review on PR #914:
- When a glyph-corrupt doc's structured rung is NOT registered, the inline path
now falls through to OCR (with reason corrupt_glyphs), mirroring the external
next_available_tier instead of silently keeping the fast result. A structured
parse FAILURE remains terminal (tracked via structured_failed), matching the
external path which does not escalate a failure. Added a debug log for the
unregistered case and "(OCR not attempted)" to the failure warning.
- Tests: inline + external glyph-corrupt fallthrough to OCR when structured is
unregistered; glyph-corrupt + junk-quality both-flags precedence (structured
wins over the bad_text_layer/ocr route).
- Note the total_chars>0 mutual-exclusion with the scanned branch in
_route_from_signals.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address round-2 review on PR #914:
- Add corrupt_glyphs to the document_classifier_flag_total label comment (it is
a live flag value emitted by record_document_classification).
- Mirror the full_text-vs-sampled control-ratio NOTE into classify_pdf so the
diagnostic path's under-detection trade-off is documented in place.
- Add test_classify_pdf_glyph_corrupt_routes_structured for routing symmetry on
the standalone classify_pdf path.
(SonarCloud quality gate is green — the prior S1244 finding was fixed last round.)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address round-1 review on PR #914:
- Attribute the OCR hop in a fast->structured->ocr inline cascade to
from_tier="structured" (not a second "fast" escalation), so
astrolabe_document_escalation_total per-tier counts stay accurate.
- Add test_inline_fast_structured_ocr_cascade pinning that two-hop path and the
metric attribution.
- Note in classify_from_text that its doc-level control ratio is over full_text
(all pages), not the sampled subset classify_pdf uses.
- Clarify that corrupt_glyphs never lands in the suppressed-escalation counter.
- Dedupe the glyph-corrupt test string into tests/fixtures/glyph_corruption.py.
- Use pytest.approx for the control-char-ratio zero checks (SonarCloud S1244).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The fast (pypdfium2) extractor can leak raw glyph codes on subset fonts with a
broken /ToUnicode CMap. The result scores high on the existing text-quality
heuristic -- a uniform glyph/Caesar offset preserves whitespace and token
lengths -- yet is unsearchable. The structured (pymupdf) tier extracts the same
pages correctly.
Add a language-agnostic C0-control-character-ratio signal to the tier-0
classifier that detects this corruption and routes the document to a new
`structured` recommended_tier. Wire the fast->structured hop on the inline path
and generalise it so a low-quality-but-non-empty layer also tries structured
before OCR -- the inline and external ingest modes now follow the full
fast->structured->ocr ladder identically. A scanned / no-text-layer document
(total_chars == 0) still shortcuts straight to OCR, since a text extractor
cannot recover a pure raster.
New per-tenant tunable DOCUMENT_GLYPH_CORRUPTION_RATIO (default 0.02); escalation
metrics gain a `corrupt_glyphs` reason label.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address round-1 review on #913 and the SonarCloud new_reliability_rating gate:
- credential_cleanup_task no longer catches the cancellation exception
(Sonar python:S7497). A task-group cancel must propagate for structured-
concurrency teardown; graceful shutdown still flows through shutdown_event,
so the sleep no longer needs a cancel/break.
- Parametrize the scanner self-heal tests over 401 AND 403 (handled
identically at both call sites) and add a test that a failing periodic
sweep is logged non-fatally and does not crash the task.
- Log the stored-user count before the startup sweep (operability signal),
add a debug line when the credential row was already gone, and document
the at-most-one extra-401 convergence in _remove_stale_credential.
Refs Deck #198.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Deleted/disabled Nextcloud users left their app_passwords row in storage,
so user_manager_task re-spawned their scanner every poll interval only to
401 again — an endless re-spawn/auth-failure loop (observed on
tenant-blackbox-demo: ~534 respawns/3h, matching the 60s poll interval).
- Delete the stored app password on a hard 401/403 in user_scanner_task
(both the pre-validation and in-scan-loop paths), breaking the re-spawn
loop at the source so the user-manager stops recreating the scanner.
- Add a periodic credential_cleanup_task backstop (hourly) that sweeps
cleanup_invalid_app_passwords for anything the per-scanner path misses.
- Run the startup cleanup for all deployment modes: drop the stale
`not oauth_enabled` guard so login_flow tenants (the cloud default) are
covered. NOTE: login_flow startup now makes one concurrent OCS
validation call per stored user before readiness.
Refs Deck #198.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Round-2 style note: replace `return None` with a comment-only intentionally
empty body for the _state_admin_can_purge stub.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Address round-1 review nits:
- document why _ocs_capabilities omits the rest of the OCS envelope (Pact V4
allows extra provider-side keys; pin only astrolabe's own block)
- use the module-level _BROKER_READY in the broker-source guard instead of
re-checking the three env vars inline
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add a Pact consumer test for capabilities.allowed_doc_types ->
NextcloudClient.capabilities() -> GET /ocs/v2.php/cloud/capabilities, pinning
the astrolabe.semantic_search.enabled_doc_types block the search/scan/purge
gates read. Covers the two meaningful provider states: some sources approved
(parsed to the allow-set) and every source disabled (empty frozenset, distinct
from the fail-open None). Produces the nextcloud-mcp-server -> astrolabe pact.
On the provider side (astrolabe's consent-purge pact), register the
"an admin can purge indexed documents" provider state and opt the broker source
into pending pacts, so that authenticated contract reports as pending instead of
failing provider verification until the live-stack auth test-hook is stood up
(ADR-029 phase 4). Already-verified interactions (GET /api/v1/status) stay
blocking.
---
_This PR was generated with the help of AI, and reviewed by a Human_
The consent gate added three `_app_enabled(...) and is_doc_type_allowed(...)`
conditions to scan_user_documents, pushing its cognitive complexity over the
SonarQube threshold. Fold the pair into a _should_scan() helper (alongside the
earlier _enqueue_deletes refactor). Also document the accepted doc_types=None
per-type-query trade-off at the search consent gate (round-10 review item).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Extract _mark_backstop_done() (overflow eviction + marker write) and
_backstop_delete_doc_type() (per-type scroll + enqueue) so
_enqueue_deletes_for_disabled_types drops from cognitive complexity 17 to well
under the 15 threshold. Behavior unchanged; tests still pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- route test for purge_doc_types raising on total failure -> 500
- route test for doc_types list containing non-strings -> 400
- reword the capabilities move_to_end comment (no-op on new keys; needed only
for the expired-key in-place update)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- app.py: move the /api/v1/vector-sync/purge mention out of the unconditional
management-endpoints log and into the vector_sync_enabled block, so operators
without Qdrant don't see an endpoint that 404s
- vector_sync route: comment why doc_types isn't whitelisted against
INDEXED_DOC_TYPES (unknown type = harmless zero-match no-op)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- vector_sync route: rename the response dict from `body` to `resp` so it no
longer shadows the request `body` (maintenance trap)
- scanner: comment the intentional files-vs-text purge timing asymmetry
- tests: add the all-text-types-disabled backstop case (empty allow-set)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- purge route: include a "failed" key in the 200 body listing requested doc
types that were not purged, so Astrolabe knows consent isn't yet enforced
for them (scanner backstop still catches up)
- tests: add @pytest.mark.unit / module-level pytestmark to the new test
modules so they run under `pytest -m unit`; add a partial-failure route test
- capabilities: comment why the cache is keyed per-user despite a global value
- semantic/scanner: doc/comment clarifications (sorted-order, eviction timing)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
