Devin Review iter #5 flagged a pre-existing class of name/id mismatch
in app/api/query.py:131-136 — the SAME root cause as the bq.* RBAC
issue I fixed in iter #3 (line 332/362). Devin called it out as
"NOT introduced by this PR" / "might merit follow-up", but it's
exactly the same security-boundary pattern this PR is hardening, so
fixing here keeps the RBAC story consistent across the handler.
The `forbidden = all_views - set(allowed)` comparison mixed types:
- `all_views` carries DuckDB master view names (= registry display
`name` from the orchestrator's CREATE VIEW)
- `set(allowed)` carries registry IDs (resource_grants.resource_id)
When `id != name` (e.g. id="bq.finance.ue", name="ue"), authorized
users got spurious 403s — the view name landed in `forbidden` even
though the caller had a valid grant on the registry id.
Build a name->id map from the registry, then the forbidden check
compares apples to apples:
allowed_view_names = {r["name"] for r in registry_rows
if r.get("name") and r.get("id") in allowed_ids}
forbidden = all_views - allowed_view_names
107 affected tests pass; 487 pass in wider RBAC/query/access/admin
domain — no regressions.
Devin Review iter #3 found 3 new real bugs after iter #2's fixes landed.
🔴 RBAC check at app/api/query.py:362 used `row["name"]` against
`accessible_set`, but `accessible_set` is keyed by registry IDs
(`get_accessible_tables` returns `resource_grants.resource_id` —
table IDs, not display names). Confirmed by `_table_blocks` projection
at `app/resource_types.py:157-158`. When `id != name` (e.g.
`id="bq.finance.ue", name="ue"`), non-admin users with valid grants
got 403 `bq_path_access_denied`. Switch to `row["id"]`.
🚩 Bare-name pass at app/api/query.py:332 had the same name-vs-id
mismatch (different impact): legitimate accessible rows were skipped
from `dry_run_set`, so the cost guardrail under-counted scan bytes
for non-admin users. Could let an over-cap query through and
under-bill quota. Switch to `row_id` comparison.
🟡 `placeholder_from` for billing_project was dead code.
`_BQ_OPTIONAL_FIELD_DEFAULTS["billing_project"] = ""` seeded an empty
string into every GET payload via `_ensure_bq_optional_fields`. JS
`isUnset = (value === undefined)` evaluated False, so the
`(defaults to <project>)` placeholder NEVER rendered. Drop the seed —
field stays in `known_fields` (UI sees it) but routes through the
unset rendering path on GET, where placeholder_from fires.
Tests: test_get_surfaces_bq_fields_even_when_unset assertion flipped
from "billing_project IS present" to "billing_project NOT auto-seeded"
to lock in the new shape. 67 affected tests pass.
Devin Review iter #2 found 2 new issues (after iter #1's 5 fixes
landed). Both real, both addressed.
🔴 Quota user_id key mismatch defeated shared daily budget. /api/query
computed `user.get("id") or user.get("email")` while /api/v2/scan uses
`user.get("email") or "anon"` (app/api/v2_scan.py:327). Same user → two
different keys in the singleton QuotaTracker. BQ bytes consumed via
/api/query were tracked under UUID; via /api/v2/scan under email; the
`check_daily_budget` pre-flight on either endpoint never saw the
other's recorded bytes — per-user cap was effectively doubled. Match
v2/scan's email-first ordering.
🟡 QuotaExceededError(KIND_CONCURRENT) → 400 instead of 429.
`quota.acquire(user_id)` raises this from __enter__ when the per-user
concurrent-scan slot is at cap. The exception propagated through the
@contextlib.contextmanager generator, the caller's `with guard:`
block, and was caught by execute_query's generic `except Exception`
handler → mapped to 400 with a flattened "Query error: concurrent_scans:
N/M" string, dropping the typed retry_after_seconds field. Wrap the
`with quota.acquire(...)` in a try/except QuotaExceededError that maps
to 429 with the same typed-detail shape used for the daily-budget
rejection — consistent with /api/v2/scan:392-402.
Tests: test_api_query_quota.py user_id strings updated to
"admin@test.com" (the seeded_app admin's email) to match the new
email-first ordering. 40 affected tests pass.
Devin Review on PR #168 found 5 issues — all real, all addressed.
🚩 ANALYSIS_001 (architectural): concurrent-slot guard didn't protect
actual BQ query execution. Earlier `_enforce_remote_bq_quota_and_cap`
ran dry-run + cap check inside `with quota.acquire(user_id):`, then
returned — releasing the slot BEFORE `analytics.execute(...)` ran. Spec
§4.3.3 explicitly designs the slot to wrap execute so the per-user
concurrent cap limits BQ scans, not just dry-runs.
Refactor to a context manager `_bq_quota_and_cap_guard`. Caller's `with`
block now holds the slot through dry-run, cap check, the actual
`analytics.execute(...)` (which is what triggers the BQ scan when DuckDB
resolves the master view), AND the post-flight record_bytes. Slot
released only when caller's `with` body exits.
🟡 BUG_001: placeholder JS walked `original` (full GET payload root)
instead of `original.sections`. `placeholder_from: ["data_source",
"bigquery", "project"]` is a section-relative path, so billing_project
placeholder NEVER rendered. Fix: walk `original.sections` (with fallback
to `original` for safety).
🟡 BUG_002 + BUG_003: admin_tables.html register and edit modals'
operator help text referenced `max_bytes_per_remote_query` (the old
name from the spec) but the actual config key is `bq_max_scan_bytes`
after the fix-up commit `6423888d` moved it. Replace both occurrences.
🟡 BUG_004: CHANGELOG entry said `api.query.bq_max_scan_bytes` (the
old path) but the read at app/api/query.py:53 is
`get_value("data_source", "bigquery", "bq_max_scan_bytes", ...)`. An
operator who set it under `api.query` in their yaml would have no
effect. Correct path in CHANGELOG.
All 95 #160-affected tests pass after the changes.
E2E test on dev VM revealed: spec said "configurable via /admin/server-config"
for the cost guardrail cap, but the underlying read path was
`api.query.bq_max_scan_bytes` and `api` is NOT in `_EDITABLE_SECTIONS`. POST
to /admin/server-config rejected `{"sections":{"api":...}}` as "unknown
section(s): api" — the cap was only adjustable via direct YAML edit.
Move to `data_source.bigquery.bq_max_scan_bytes`:
- `_default_remote_query_cap_bytes()` reads from the new path.
- Add to `_OPTIONAL_FIELDS["data_source"]["bigquery"]["fields"]` with the
same shape as `max_bytes_per_materialize` (kind=int, default 5 GiB, hint).
- Add to `_BQ_OPTIONAL_FIELD_DEFAULTS` so it surfaces in the GET payload
even when YAML omits it.
Convention now mirrors `max_bytes_per_materialize` — both BQ cost
guardrails live under `data_source.bigquery`, both editable in the UI.
Phase 3 review identified an RBAC + cost-cap bypass: `SELECT * FROM
"bq"."ds"."tbl"` (catalog token quoted as a DuckDB identifier) was NOT
matched by the BQ_PATH regex, so direct quoted-form references skipped
both the registry check and the cost-cap dry-run. DuckDB resolves
`"bq"` to the same ATTACHed BQ catalog, so the bypass is real.
Widen the catalog-token alternation: `(?:"bq"|bq)` matches both forms.
Negative lookbehind `(?<![\w.])` still rejects look-alike prefixes
(`other_bq`, `my_bq`); the new "my_bq".ds.tbl negative test locks that
in alongside `other_bq.ds.tbl`.
Tests:
- 2 new positive cases in tests/test_query_bq_regex.py for the quoted
form (`"bq"."finance"."ue"` and uppercase `"BQ"."ds"."tbl"`).
- 1 new negative case rejecting `"my_bq".ds.tbl` so the quoted-form
widening doesn't open a different evasion.
- 1 new RBAC test in tests/test_api_query_rbac_bq_path.py: admin
hitting an unregistered quoted path returns the same
bq_path_not_registered 403 as the unquoted form.
All 33 Phase 3 tests pass after the fix.
The headline implementation for issue #160. POST /api/query now gates
direct `bq."<dataset>"."<source_table>"` references behind the registry
and bounds the BQ scan cost behind a configurable cap. Wired through
the same singleton QuotaTracker as /api/v2/scan so daily-byte budgets
are shared across both BQ-touching paths.
Changes in app/api/query.py:
- Add module-level `BQ_PATH` regex matching the 16 syntax variants
verified empirically (fully-quoted, unquoted, mixed quoting,
case-insensitive, inside CTE bodies, multi-path, …).
- Add `bigquery_query` to the SQL keyword blocklist. Closes the
pre-existing function-call backdoor where a user could run an
arbitrary BQ jobs API call against any reachable dataset, bypassing
the registry and RBAC. Wrap views internal to the BQ extractor still
use bigquery_query() — but those run via DuckDB view resolution at
query time, not via user-submitted SQL, so the blocklist doesn't
break them.
- Add `_bq_guardrail_inputs` helper: walks user SQL twice — once for
bare-name matches against accessible registered remote-BQ names
(contributes to dry_run_set), once for direct `bq.X.Y` matches
(gated against `find_by_bq_path` lookups, returns 403 with
structured detail on miss or grant violation).
- Add `_enforce_remote_bq_quota_and_cap` helper: pre-flight
`check_daily_budget` (over-cap → 429), then `with quota.acquire(...)`
wraps a per-path BQ dry-run, sums bytes, raises 400
`remote_scan_too_large` when total > cap.
- Cap default 5 GiB; configurable via `api.query.bq_max_scan_bytes`
in /admin/server-config (next phase wires the UI).
- Post-flight `record_bytes` against the user's daily counter.
- Module-level imports of `_bq_dry_run_bytes`, `_build_quota_tracker`,
`get_bq_access` so tests can monkeypatch via `app.api.query.<name>`.
Tests:
- All 23 RED tests from the previous commit now pass (regex matrix,
blocklist with detail-string assertion, RBAC unregistered/admin-bypass,
guardrail dry-run-called/over-cap-rejected, quota pre-flight 429).
- mock_dry_run fixture stubs both `_bq_dry_run_bytes` and `get_bq_access`
so guardrail tests don't require a live BQ project.
- Quota test uses `admin1` (the seeded_app fixture's actual user id, not
`admin`).
Smoke: 887 passed across query/bq/admin/extractor/registry/quota
domains. No regressions.
E2E sub-agent finding: `da query --remote "SELECT * FROM <id>"` against a
materialized table that hasn't yet been rebuilt in the server's
analytics.duckdb returns a confusing DuckDB "Table does not exist"
message even though the table is in the registry. Materialized rows
produce parquets at `${DATA_DIR}/extracts/<source>/data/<id>.parquet`,
but the orchestrator's master-view creation is `_meta`-driven — fresh
instances or pre-tick states have the registry row without a
corresponding view, so analysts hit the bare "does not exist" with no
path forward.
Improve the error rendering in `app/api/query.py:execute_query`. When
DuckDB raises a "table does not exist" error, scan the registry for any
`query_mode='materialized'` row whose id or name appears in the failed
SQL. On a hit, return a 400 whose detail names the table, explains the
materialize state, and offers two concrete next steps:
1. Run `da sync` (or wait for the scheduler tick / hit
POST /api/sync/trigger) to materialize the parquet, OR
2. Query the source directly via the catalog alias when the registry row
carries bucket+source_table (e.g. `bq."dataset"."table"` for BigQuery,
`kbc."bucket"."table"` for Keboola).
Detection is bounded — the registry round-trip only fires when DuckDB's
error mentions a missing table, so happy-path queries pay no cost.
Non-materialized unknowns fall through to DuckDB's raw error.
2 new tests: materialized id surfaces the hint with the bucket+source_table
payload; unknown table falls back to the generic error path with no false
positive on the new hint.
Replaces the BigQuery wrap-view pattern with a discovery + scoped-fetch toolkit driven by the analyst's Claude session. Adds /api/v2/{catalog,schema,sample,scan,scan/estimate}, da catalog/schema/describe/fetch/snapshot/disk-info CLI commands, sqlglot-backed WHERE validator, process-local quota tracker, agent rails skill (cli/skills/agnes-data-querying.md). BREAKING: BQ wrap views off by default — set data_source.bigquery.legacy_wrap_views=true for one cycle. Backward-compat field_validator on primary_key. Catalog cache now matches documented 300s TTL with RBAC fresh per request. Cuts release v0.14.0.
Add information_schema, duckdb_* introspection functions, pragma_* functions,
and relative path traversal patterns to the SQL blocklist so users cannot
enumerate schema metadata regardless of RBAC. Add six corresponding tests.
Replace substring matching with word-boundary regex in query endpoint's
table access validation. Prevents false positives where short table names
like 'id' would block any query containing the word. Uses re.escape() to
safely handle special characters in table names.
- Import re module at top
- Use regex pattern with word boundaries (\b) for matching
- Add tests to verify no false positives and proper blocking
Expand blocked keywords to cover parquet_scan, read_csv_auto, query_table,
iceberg_scan, delta_scan, call, URL schemes (http/https/s3/gcs), and
additional file-scan functions. Set enable_external_access=false on the
non-read-only analytics connection path. Add three new tests covering
parquet_scan, read_csv_auto, and query_table blocking.
Schema v3: add is_public column to table_registry (default true).
src/rbac.py: can_access_table() checks admin bypass, public flag,
explicit permissions, wildcard bucket permissions.
API enforcement:
- manifest: filters tables by user access
- download: 403 if no access
- catalog: filters table list
- query: validates referenced tables against allowed list
New admin permissions API (/api/admin/permissions) for grant/revoke.
28 access control tests + 733 total tests passing.
