3d58768143
13 Devin findings across 10 files: 🔴 Critical: - app/api/v2_catalog.py:42 — `_fetch_hint` returns `da fetch` in /api/v2/catalog responses (user-visible in every catalog list) - cli/skills/agnes-data-querying.md — 11 stale `da fetch`/`da sync` refs in the bundled skill markdown - config/claude_md_template.txt:38 — referenced `agnes pull --docs-only` flag that does NOT exist in agnes pull (removed; spec only ships --quiet/--json/ --dry-run) 🟡 Important: - app/api/admin.py:252 — `da fetch` in bq_max_scan_bytes hint - cli/commands/auth.py:119 — `da sync` in import-token docstring (--help text) - cli/commands/tokens.py:48 — "Export it so `da` can use it" prose - ARCHITECTURE.md — 4 stale rows in CLI commands table - README.md — stale paragraphs for analysts (da sync, da analyst setup) 🚩 Substantive observations addressed: - app/api/query.py:249,302,489 — server-side error/help strings still said `da sync`/`da fetch` (returned in API responses to clients) - cli/commands/snapshot.py:235-241 — DuckDB existence guard incorrectly blocked `--estimate` (server-side dry-run that never opens local DB). Added test ensuring estimate path skips the guard. Skipped (intentionally historical): - app/api/admin.py:2377,2429,2437 — historical comments describing past manifest-vs-sync_state bug; past tense, accurate to keep as `da sync`.
508 lines
22 KiB
Python
508 lines
22 KiB
Python
"""Query endpoint — execute SQL against server DuckDB."""
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import contextlib
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import logging
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import os
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import re
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from pathlib import Path
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from typing import Optional
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from fastapi import APIRouter, Depends, HTTPException
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from pydantic import BaseModel
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import duckdb
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from app.auth.access import is_user_admin
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from app.auth.dependencies import get_current_user, _get_db
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from app.instance_config import get_value
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from src.db import get_analytics_db_readonly
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from src.rbac import get_accessible_tables
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from src.repositories.table_registry import TableRegistryRepository
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# Imported at module level so tests can monkeypatch via
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# `app.api.query._bq_dry_run_bytes` without resolving lazy imports inside
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# the handler (reaches the patched attribute on each call). Same for
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# get_bq_access — sibling module, dep direction doesn't matter (both are
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# leaves under app.api).
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from app.api.v2_quota import _build_quota_tracker, QuotaExceededError
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from app.api.v2_scan import _bq_dry_run_bytes
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from connectors.bigquery.access import get_bq_access, BqAccessError
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logger = logging.getLogger(__name__)
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router = APIRouter(prefix="/api/query", tags=["query"])
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# Issue #160 §4.3.1 — direct `bq.<dataset>.<source_table>` references in user
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# SQL. Catalog token accepts both `bq` (the unquoted DuckDB-style name) and
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# `"bq"` (quoted identifier). DuckDB resolves both to the same ATTACHed
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# catalog, so the security-boundary regex must accept both — Phase 3 review
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# caught the quoted variant as an RBAC + cost-cap bypass.
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# Lookahead `(?=\W|$)` works where `\b` doesn't (after a closing quote).
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# Negative lookbehind `(?<![\w.])` rejects `other_bq.x.y`, `my_bq.ds.tbl`,
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# and `x.bq.y.z` so the regex doesn't fire on column qualifiers or
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# look-alike-prefixed identifiers.
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BQ_PATH = re.compile(
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r'(?<![\w.])(?:"bq"|bq)\s*\.\s*("[^"]+"|\w+)\s*\.\s*("[^"]+"|\w+)(?=\W|$)',
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re.IGNORECASE,
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)
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def _default_remote_query_cap_bytes() -> int:
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"""5 GiB default cap on /api/query BQ-touching scans. Configurable via
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`data_source.bigquery.bq_max_scan_bytes` in /admin/server-config —
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sits next to `max_bytes_per_materialize` for visual symmetry.
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"""
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raw = get_value("data_source", "bigquery", "bq_max_scan_bytes", default=5_368_709_120)
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try:
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return int(raw) if raw is not None else 5_368_709_120
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except (TypeError, ValueError):
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return 5_368_709_120
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class QueryRequest(BaseModel):
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sql: str
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limit: int = 1000
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class QueryResponse(BaseModel):
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columns: list
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rows: list
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row_count: int
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truncated: bool = False
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@router.post("", response_model=QueryResponse)
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async def execute_query(
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request: QueryRequest,
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user: dict = Depends(get_current_user),
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conn: duckdb.DuckDBPyConnection = Depends(_get_db),
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):
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"""Execute SQL against the server analytics DuckDB."""
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sql_lower = request.sql.strip().lower()
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# Block everything except SELECT
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blocked = [
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"drop ", "delete ", "insert ", "update ", "alter ", "create ",
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"copy ", "attach ", "detach ", "load ", "install ",
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"export ", "import ", "pragma ", "call ",
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# File access functions
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"read_csv", "read_json", "read_parquet", "read_text",
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"write_csv", "write_parquet", "read_blob", "read_ndjson",
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"parquet_scan", "parquet_metadata", "parquet_schema",
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"json_scan", "csv_scan",
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"query_table", "iceberg_scan", "delta_scan",
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# #160: bigquery_query() bypasses the registry / RBAC entirely
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# (it runs an arbitrary BQ jobs API call against any reachable
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# dataset). Wrap views created by the BQ extractor use it inside
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# CREATE VIEW bodies, but those run via DuckDB's view resolution at
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# query time — user-submitted SQL never contains the function name.
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"bigquery_query",
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"glob(", "list_files",
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"'/", '"/','http://', 'https://', 's3://', 'gcs://',
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# DuckDB metadata (leaks schema info regardless of RBAC)
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"information_schema", "duckdb_tables", "duckdb_columns",
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"duckdb_databases", "duckdb_settings", "duckdb_functions",
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"duckdb_views", "duckdb_indexes", "duckdb_schemas",
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"pragma_table_info", "pragma_storage_info",
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# Relative path traversal
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"'../", '"../',
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# Multiple statements
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";",
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]
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if any(keyword in sql_lower for keyword in blocked):
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raise HTTPException(status_code=400, detail="Only single SELECT queries are allowed")
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# Accept any whitespace (newline, tab, space) after the keyword so
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# multi-line SQL doesn't 400 on `SELECT\n col, ...`.
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import re as _re
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if not _re.match(r"^(select|with)\s", sql_lower):
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raise HTTPException(status_code=400, detail="Query must start with SELECT or WITH")
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# Get allowed tables for this user
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allowed = get_accessible_tables(user, conn)
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analytics = get_analytics_db_readonly()
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try:
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if allowed is not None: # None = admin, sees all
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# Get all views in analytics DB
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all_views = {row[0] for row in analytics.execute(
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"SELECT table_name FROM information_schema.tables WHERE table_type='VIEW'"
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).fetchall()}
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# `allowed` carries registry IDs (resource_grants.resource_id);
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# DuckDB master views are named by registry display `name`.
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# Build a name->id map so the forbidden check compares apples to
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# apples — when id != name, the prior `all_views - set(allowed)`
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# over-denied authorized users (Devin Review iter #5 on PR #168;
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# pre-existing class of name/id mismatch flagged across this
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# PR's BQ guardrail too).
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allowed_ids = set(allowed)
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registry_rows = TableRegistryRepository(conn).list_all()
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allowed_view_names = {
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r["name"] for r in registry_rows
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if r.get("name") and r.get("id") in allowed_ids
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}
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# Check if query references any forbidden tables (word-boundary match)
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forbidden = all_views - allowed_view_names
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for table in forbidden:
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pattern = r'\b' + re.escape(table.lower()) + r'\b'
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if re.search(pattern, sql_lower):
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raise HTTPException(status_code=403, detail=f"Access denied to table '{table}'")
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# ---- #160 BQ remote-row guardrail + RBAC patch -------------------
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dry_run_set, blocked_bq_path = _bq_guardrail_inputs(
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request.sql, sql_lower, conn, user, allowed,
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)
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if blocked_bq_path is not None:
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raise HTTPException(status_code=403, detail=blocked_bq_path)
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# Issue #160 §4.3.3 — concurrent-slot guard MUST wrap the actual
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# `analytics.execute(request.sql)` call (which is what triggers the
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# BQ scan when DuckDB resolves the master view), not just the
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# dry-run. Devin Review on PR #168 caught this — earlier
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# implementation released the slot before execute. Use a context
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# manager so dry-run + cap check + execute + record_bytes all run
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# inside the slot.
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# Match /api/v2/scan's user_id key shape (`email or "anon"`) so the
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# shared QuotaTracker singleton sees the SAME key for both endpoints.
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# Earlier `id or email` ordering keyed BQ bytes on UUID for /api/query
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# vs email for /api/v2/scan — the per-user daily cap was effectively
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# doubled because the two paths tracked under different keys.
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# Devin Review #2 caught this on PR #168.
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user_id = user.get("email") or user.get("id") or "anon"
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guard = (
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_bq_quota_and_cap_guard(
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user_id=user_id, dry_run_set=dry_run_set, sql=request.sql,
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)
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if dry_run_set
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else contextlib.nullcontext()
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)
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with guard:
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# Open in read-only mode for extra safety
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result = analytics.execute(request.sql).fetchmany(request.limit + 1)
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columns = [desc[0] for desc in analytics.description] if analytics.description else []
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truncated = len(result) > request.limit
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rows = result[:request.limit]
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# Post-flight: bill the dry-run estimate against the user's daily
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# quota. Do this AFTER execute so a downstream failure (e.g. BQ
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# outage) doesn't strand the user with charged-but-unrun bytes.
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# Stays inside the `with quota.acquire(...)` block so the slot
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# release happens after record_bytes completes.
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if dry_run_set:
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try:
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_build_quota_tracker().record_bytes(
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user_id, sum(b for _, _, b in dry_run_set),
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)
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except Exception:
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# record_bytes is documented as never-raising; defensive guard.
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logger.warning("quota record_bytes failed for user=%s", user_id)
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# Convert to serializable types
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serializable_rows = []
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for row in rows:
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serializable_rows.append([
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str(v) if v is not None and not isinstance(v, (int, float, bool, str)) else v
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for v in row
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])
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return QueryResponse(
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columns=columns,
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rows=serializable_rows,
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row_count=len(serializable_rows),
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truncated=truncated,
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)
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except HTTPException:
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raise
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except Exception as e:
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# If DuckDB raised "Table … does not exist" for a referenced name,
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# check whether that name belongs to a registry row in
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# `query_mode='materialized'` that hasn't yet been materialized in
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# this instance's analytics.duckdb. Materialized rows produce a
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# parquet at `${DATA_DIR}/extracts/<source>/data/<id>.parquet` but
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# the orchestrator is `_meta`-driven and only creates master views
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# for connectors that emit `_meta` rows — so on a fresh instance
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# (or before the first scheduler tick) the master view doesn't
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# exist yet and the operator gets a confusing "table does not
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# exist" with no path forward. Surface a materialize-aware hint
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# instead of DuckDB's bare error.
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msg = str(e)
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helpful = _materialized_hint_for_query_error(conn, request.sql, msg)
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if helpful:
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raise HTTPException(status_code=400, detail=helpful)
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raise HTTPException(status_code=400, detail=f"Query error: {msg}")
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finally:
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analytics.close()
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def _materialized_hint_for_query_error(
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conn: duckdb.DuckDBPyConnection, sql: str, error_msg: str,
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) -> Optional[str]:
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"""Return a materialize-aware error message if the failed query
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references a registry row whose `query_mode='materialized'` and which
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has no master view in analytics.duckdb yet, OR ``None`` to fall back
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to DuckDB's raw error.
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The detection scans each materialized row's id/name against the SQL
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text; a hit means the operator picked a name that exists in the
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registry but isn't queryable in this instance. The hint is the same
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in both arms of the OR — it tells them what the table needs and what
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they can do today (`agnes pull` or query `bq."dataset"."table"`
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directly using the bucket/source_table from the registry row).
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"""
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# Cheap fast-path — only inspect the registry when DuckDB's error
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# actually mentions a missing table. Avoids registry round-trip on
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# every parse/cast/permission failure.
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el = error_msg.lower()
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if "does not exist" not in el and "table with name" not in el:
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return None
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try:
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repo = TableRegistryRepository(conn)
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rows = repo.list_all()
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except Exception:
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# Registry read failed for whatever reason — don't compound the
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# error response by hiding the original DuckDB message.
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return None
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sql_l = sql.lower()
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for r in rows:
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if (r.get("query_mode") or "") != "materialized":
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continue
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# Match by id or by name; either could appear in the SQL.
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candidates = {r.get("id"), r.get("name")}
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for cand in candidates:
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if not cand:
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continue
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cand_l = str(cand).lower()
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# Word-boundary-ish check — `\b` doesn't match `.` so
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# `bq.dataset.cand` would still hit, which is fine for the
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# hint path (the operator is referring to the same table).
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if re.search(r"\b" + re.escape(cand_l) + r"\b", sql_l):
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return _build_materialized_hint(r)
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return None
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def _build_materialized_hint(row: dict) -> str:
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"""Format the user-facing hint for a materialized row that's not yet
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queryable. Includes the table id, the bucket/source_table when the
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row carries them, and concrete operator next steps."""
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tid = row.get("id") or row.get("name") or "<unknown>"
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bucket = row.get("bucket")
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source_table = row.get("source_table")
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direct_hint = ""
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if bucket and source_table:
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# BigQuery: `bq."dataset"."table"`; Keboola: `kbc."bucket"."table"`.
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# Pick the alias by source_type so the hint is copy-pasteable.
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alias = "bq" if (row.get("source_type") or "") == "bigquery" else "kbc"
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direct_hint = (
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f' or query the source directly via {alias}."{bucket}".'
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f'"{source_table}"'
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)
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return (
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f"Table {tid!r} is registered as query_mode='materialized' but is "
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f"not yet materialized in this instance's analytics views. Run "
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f"`agnes pull` (or wait for the scheduler tick / hit POST "
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f"/api/sync/trigger) to materialize the parquet"
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f"{direct_hint}."
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)
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def _bq_guardrail_inputs(
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sql: str,
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sql_lower: str,
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sys_conn: duckdb.DuckDBPyConnection,
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user: dict,
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allowed: Optional[list],
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):
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"""Two-pass scan over user SQL for the upcoming BQ guardrail + RBAC patch.
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Returns a tuple `(dry_run_set, blocked_bq_path)`:
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- `dry_run_set` is a list of `(bucket, source_table, est_bytes)` triples
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identifying every BigQuery row the request will scan. The caller dry-runs
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each and bills the sum against the user's daily quota.
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- `blocked_bq_path` is a structured-detail dict for the caller to raise
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HTTPException(403) with, when user SQL contains a direct
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`bq."<ds>"."<tbl>"` reference that either points at an unregistered
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path (`bq_path_not_registered`) or registered but the caller has no
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grant on the registered name (`bq_path_access_denied`). None when the
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RBAC check passes.
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"""
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repo = TableRegistryRepository(sys_conn)
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# 1. Bare-name pass: look up registered remote-BQ names that appear in
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# the user SQL as word-boundary tokens. Reuses the same regex shape as
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# the existing forbidden-table loop above.
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#
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# `accessible_set` comes from `get_accessible_tables()` which returns
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# `resource_grants.resource_id` values — i.e. table registry IDs, NOT
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# display names. Devin Review iter #3 caught the mismatch: when
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# `id != name` (e.g. id="bq.finance.ue", name="ue"), legitimate
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# accessible rows were skipped, under-counting dry-run bytes for the
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# cost cap. The user SQL still references the display `name` (that's
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# what shows in `agnes catalog`), so the regex match below uses `name`,
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# but the access gate uses `id`.
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dry_run: list = []
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seen_paths: set = set()
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accessible_set = set(allowed) if allowed is not None else None
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for r in repo.list_by_source("bigquery"):
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if (r.get("query_mode") or "") != "remote":
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continue
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bucket = r.get("bucket")
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source_table = r.get("source_table")
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name = r.get("name")
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row_id = r.get("id")
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if not (bucket and source_table and name and row_id):
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continue
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if accessible_set is not None and row_id not in accessible_set:
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# Forbidden-table loop above will have rejected the request
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# before we get here. Defensive skip.
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continue
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pattern = r'\b' + re.escape(str(name).lower()) + r'\b'
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if re.search(pattern, sql_lower):
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key = (bucket.lower(), source_table.lower())
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if key not in seen_paths:
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seen_paths.add(key)
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dry_run.append((bucket, source_table, 0)) # bytes filled at dry-run
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# 2. Direct bq.<ds>.<tbl> pass: every match must point at a registered
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# row. Run BEFORE adding to dry_run so unregistered paths fail-fast.
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is_admin = is_user_admin(user.get("id") or user.get("email") or "", sys_conn)
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for m in BQ_PATH.finditer(sql):
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bucket_raw = m.group(1).strip('"')
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source_table_raw = m.group(2).strip('"')
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row = repo.find_by_bq_path(bucket_raw, source_table_raw)
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if row is None:
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return [], {
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"reason": "bq_path_not_registered",
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"path": f'bq."{bucket_raw}"."{source_table_raw}"',
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"hint": (
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"Direct bq.* references must point to a registered table. "
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"Register via `agnes admin register-table` or use the "
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"registered name from `agnes catalog`."
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),
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}
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# Row exists. Per-id grant check (non-admin only).
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# `accessible_set` is keyed by registry id (resource_grants
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# resource_id), so use `row["id"]` here, not display name.
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# Devin Review iter #3.
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if not is_admin:
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if accessible_set is None or row["id"] not in accessible_set:
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return [], {
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"reason": "bq_path_access_denied",
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"path": f'bq."{bucket_raw}"."{source_table_raw}"',
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"registered_as": row["name"],
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}
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# Add to dry-run set if not already covered by bare-name pass.
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bucket = row["bucket"]
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source_table = row["source_table"]
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if bucket and source_table:
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key = (bucket.lower(), source_table.lower())
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if key not in seen_paths:
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seen_paths.add(key)
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dry_run.append((bucket, source_table, 0))
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return dry_run, None
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@contextlib.contextmanager
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def _bq_quota_and_cap_guard(*, user_id: str, dry_run_set: list, sql: str):
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"""Pre-flight check + dry-run + cap enforcement for /api/query BQ paths.
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Context-manager shape (Devin Review #5 on PR #168). Earlier implementation
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ran the dry-run + cap check inside `with quota.acquire(user_id):`, then
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returned — releasing the concurrent slot BEFORE the actual BQ-touching
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`analytics.execute(...)` ran. Spec §4.3.3 wants execute to be inside the
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slot so the per-user concurrent cap actually limits BQ scans, not just
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dry-runs.
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Now: the helper is a context manager that yields after the cap check.
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The caller's `with` block holds the slot through both dry-run AND the
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subsequent `analytics.execute(...)` until the body exits.
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1. `check_daily_budget` — over-cap users get 429 BEFORE any BQ work.
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2. `quota.acquire(user_id)` opened — concurrent-slot held throughout.
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3. Dry-run each `(bucket, source_table)` via `_bq_dry_run_bytes`.
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4. If sum > cap → 400 `remote_scan_too_large`.
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5. Yield. Caller runs `analytics.execute(...)` + `record_bytes(...)`.
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6. On exit, slot released.
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Mutates `dry_run_set` in place: the third tuple element (bytes) is
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populated with the per-path dry-run result so the caller can sum and
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record the bytes against the user's quota post-flight.
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"""
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quota = _build_quota_tracker()
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try:
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quota.check_daily_budget(user_id)
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except QuotaExceededError as exc:
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raise HTTPException(status_code=429, detail={
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"reason": "daily_byte_cap_exceeded",
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"kind": exc.kind,
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"current": exc.current,
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"limit": exc.limit,
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"retry_after_seconds": exc.retry_after_seconds,
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})
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try:
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bq = get_bq_access()
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except BqAccessError as exc:
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raise HTTPException(status_code=502, detail={
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"kind": exc.kind,
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"message": exc.message,
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**(exc.details or {}),
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})
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cap_bytes = _default_remote_query_cap_bytes()
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# `quota.acquire(user_id)` raises QuotaExceededError(KIND_CONCURRENT)
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# via __enter__ when the per-user concurrent-scan slot is at cap.
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# Catch around the `with` and map to HTTP 429 with the typed detail
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# shape — same shape as the daily-budget rejection above. Without
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# this, the exception propagates through @contextlib.contextmanager
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# and is caught by execute_query's generic `except Exception` →
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# returns HTTP 400 with a flattened "Query error: concurrent_scans:
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# N/M" string, dropping the typed retry_after_seconds field.
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# Devin Review #2 on PR #168.
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try:
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with quota.acquire(user_id):
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total_bytes = 0
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for i, (bucket, source_table, _) in enumerate(dry_run_set):
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bq_sql = f"SELECT * FROM `{bq.projects.data}.{bucket}.{source_table}`"
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try:
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est = _bq_dry_run_bytes(bq, bq_sql)
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except BqAccessError as exc:
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raise HTTPException(status_code=502, detail={
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"kind": exc.kind,
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"message": exc.message,
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**(exc.details or {}),
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})
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dry_run_set[i] = (bucket, source_table, est)
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total_bytes += est
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if cap_bytes > 0 and total_bytes > cap_bytes:
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tables = [f"{b}.{t}" for b, t, _ in dry_run_set]
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raise HTTPException(status_code=400, detail={
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"reason": "remote_scan_too_large",
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"scan_bytes": total_bytes,
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"limit_bytes": cap_bytes,
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"tables": tables,
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"suggestion": (
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"Use `agnes snapshot create <id> --select <cols> --where <predicate> "
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"--estimate` to materialize a filtered subset, then query "
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"the snapshot locally."
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),
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})
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# Yield control to the handler — slot stays acquired while the
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# caller runs analytics.execute() + record_bytes().
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yield total_bytes
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except QuotaExceededError as exc:
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# Only KIND_CONCURRENT can land here (daily-budget already mapped
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# above; record_bytes never raises). Map to 429 with structured
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# detail consistent with the daily-budget shape.
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raise HTTPException(status_code=429, detail={
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"reason": "concurrent_slot_exceeded",
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"kind": exc.kind,
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"current": exc.current,
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"limit": exc.limit,
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"retry_after_seconds": exc.retry_after_seconds,
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})
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