Gemini scanner sweep (token-bypass), GPT-4.1 cross-review, and the
6-detector /sh-security-review fan-out ran against 6acfdab..HEAD; every
confirmed finding fixed:
HIGH (deployment blockers, logic detector):
- CONC-L1: suggestions lambda's bulk line-item PUT sent no
proposalVersion — every AI suggestion job would 422 and be silently
swallowed. Now fetches the proposal's rowVersion, echoes it, and
retries once with a fresh token on 409. Pytest updated (38 green).
- CONC-L2: mobile admin surface (update/approve/send/revise, bulk line
items) sent no tokens — the entire mobile admin workflow would 422.
Tokens threaded through mobile api layer + workspace/line-item
screens with 409 refetch handling. tsc clean.
MEDIUM-adjacent (scanner):
- VendorProposalsController: the VendorTotalCost write on Proposal now
bumps Version (was a silent lost-update path bypassing the guard).
- FilesController: GeneratePDF audit staged into the same SaveChanges.
LOW (detectors):
- 409 envelope is schema-validated client-side
(proposalConcurrencyConflictSchema.safeParse) and id-checked before
seeding the react-query cache; malformed state degrades to
invalidation (INJ-409-01/WEB-CONC-L1).
- ProposalConcurrencyException.CurrentState typed ProposalResponse?
so an EF entity can never serialize into the 409 body (SC-1).
- Guard caller contract documented + GuardedEndpointAuthorizationTests
reflection tripwire: guard-reaching endpoints must stay admin-gated
(AUTHZ-CG-01).
- Pre-check currentState now loads display navigations so both 409
paths return the same shape (CONC-L3).
- Save chain's trailing getById failure no longer misreports a
committed save; falls back to invalidation (CONC-L4).
Also caught during fix verification: the handler's manual currentState
serialization lacked JsonStringEnumConverter — enums would serialize
as numbers, client schema validation would reject every guarded 409,
and the state would always be discarded. Now matches the MVC pipeline
and is pinned by a wire test.
193 xUnit / 70 vitest / 38 pytest green; mobile + shared tsc clean;
Playwright smoke 2/2.
Adds a managed pricing library so admins can seed/curate reference priced items
directly, instead of the corpus being populated only by ingesting Sent proposals.
v1 PR5.
API:
- PricingLibraryItem entity + migration; /api/pricing-library CRUD (admin), with
GET {id} reachable by internal Lambda callers (admins role via internal key).
- Create/update publish an ADDITIVE library-ingest SQS job {pricingLibraryItemId},
wrapped so a publish failure never rolls back the save.
Lambda (library-ingest):
- Additive event-shape branch: pricingLibraryItemId -> fetch item, format markdown,
upload to pricing-library/{category}/{id}.md, trigger KB sync. The existing
proposalId path is byte-for-byte unchanged. Explicit error when neither id present;
warns when both present.
Web:
- Pricing Library management page (/admin/pricing-library): list / create / edit / delete.
GPT-4.1 cross-review on the event-shape change: no BLOCK (neither/both-id handling
applied). Verified: api 159 tests; web tsc + 26 tests; lambdas ruff + 37 pytest.
The .NET API Lambda Function URL uses authType=AWS_IAM, but the four workload
Lambdas (suggestions, pdf-extract, pdf-generate, library-ingest) sent unsigned
requests with only X-Internal-Api-Key -> every internal call 403s. They also
used bare fromAsset() with no pip bundling -> ImportError at cold start. Both
made the SQS->Lambda->API pipeline non-functional when deployed (v1 pre-flight).
- Add _sign_request_headers (botocore SigV4Auth, service "lambda"); serialize the
JSON body once and send via httpx content= so the signed payload hash matches
the bytes sent; preserve X-Internal-Api-Key for the app-layer check. Sign per
retry attempt to avoid SigV4 timestamp expiry on slow retries.
- Add CDK pip bundling (--platform manylinux2014_aarch64 --only-binary=:all:) to
all four Lambdas so ARM64 wheels (reportlab, Pillow, pdfplumber) ship.
- Converge _retry_request across all four (fixes possibly-undefined return in
pdf-extract/pdf-generate).
- Add SigV4 signing regression tests.
Verified: ruff clean, infra tsc clean, aarch64 wheels resolve for all four,
23 pytest pass. GPT-4.1 cross-family review: no BLOCK (FIX + NIT applied).
LAM-M2: Add sanitize_user_text() to suggestions Lambda that strips common
prompt injection patterns (blocklist + delimiter neutralisation) before
including user-supplied text in Bedrock prompts.
LAM-M3: Add file size check in pdf-extract before downloading — rejects
PDFs over 50 MB with a logged warning and ValueError.
LAM-M6: Add validate_line_item_numerics() to suggestions Lambda that
rejects Bedrock-generated line items with negative values, NaN/Inf, or
amounts exceeding $10M ceiling.
LAM-M9: Replace indefinite API key cache with 5-minute TTL in all four
Lambdas (suggestions, pdf-extract, pdf-generate, library-ingest) so
rotated Secrets Manager values take effect promptly.
LAM-M1: Add event/record validation at handler entry for all 4 SQS-triggered
Lambdas. Validates Records key exists and is a non-empty list, checks each
record has a body key, and catches malformed JSON separately to add to
batchItemFailures.
LAM-M5: Change logger.error() to logger.exception() inside all except blocks
across pdf-extract, pdf-generate, suggestions, and library-ingest handlers
so stack traces are included in CloudWatch logs for debugging.
LAM-M8: Add _validate_s3_key() to pdf-extract, pdf-generate, and
library-ingest that strips path traversal sequences (../, ..\), collapses
double slashes, and rejects keys with disallowed characters via regex.
6-domain audit (API, web, mobile, lambdas, infra, QA) with fixes:
API security: scope internal API key middleware to allowed paths only,
return 401 on invalid key instead of falling through, remove unvalidated
JWT code path, sanitize error messages, add UpdateProposal validator,
remove status field from UpdateProposalRequest to prevent over-posting,
log swallowed exceptions in ProposalService.
Infrastructure: enforce SSL on all S3 buckets, encrypt SQS queues,
enable optional MFA on Cognito, add API Gateway access logging.
Lambdas: fix _retry_request undefined variable across all 4 Lambdas,
re-raise exceptions in pdf-extract/pdf-generate instead of swallowing,
add idempotency guard to suggestions Lambda.
Web: add ErrorBoundary, add auth loading state to ProtectedRoute,
add mutation error toasts in AdminWorkspace, fix dead Cognito link.
Mobile: add mutex to offline queue processing, distinguish permanent
vs retryable failures, register all screens for both roles, log sync
errors.
Swagger/OpenAPI: add Swashbuckle with JWT bearer security definition,
add ProducesResponseType attributes to key endpoints.
Includes AUDIT-REPORT.md with complete findings and CLAUDE.md project
instructions.
- Removed admin-only restriction on PDF download endpoints
- Added GET pdf/versions endpoint returning all generated PDFs
- Download PDF button on detail page for Approved/Sent/Revised proposals
- PDF Versions card shows all revisions with individual download buttons
- Dev-mode support for GetPdfRevision endpoint
- Status timeline stepper now uses STATUS_LABELS (fixes "InReview" display)
- PDF Lambda improvements for local generation
BLOCK-10: Add CloudWatch alarms (DLQ, Lambda errors, RDS, API 5xx) with SNS email
BLOCK-11: Remove sync-over-async deadlock in CurrentUserService
BLOCK-12: Add AppDelegate OAuth URL callback handler for mobile
BLOCK-13: Wire mobile 401 interceptor to dispatch Redux logout
BLOCK-14: Fix JWT base64 padding crash and SysAdmin role detection
BLOCK-15: Reset pagination to page 1 on filter change
BLOCK-16: Add unsaved-changes guard (beforeunload + useBlocker) to AdminWorkspace
FIX-08: Add BulkUpdateLineItems FluentValidation validator
FIX-13: Display auth errors on LoginPage
FIX-25: Add token refresh with retry queue to mobile API client
FIX-44: Add httpx retry logic to all Lambda handlers
FIX-42/43: Align docker-compose PG version (15) and DB name (proposals) with RDS
BLOCK-01: Add API Gateway JWT authorizer with Cognito, route internal
Lambda calls through Function URL to bypass gateway auth
BLOCK-02/03: Prevent proposal number race condition with pg_advisory_xact_lock
and filter revision numbers from max-number query
BLOCK-04: Restrict VendorProposals and GeneratedPdfs to admins/sysadmins
BLOCK-05: Sum all vendor costs instead of overwriting with single vendor
BLOCK-06: Enable ValidateAudience on JWT, add Auth env vars to API Lambda
BLOCK-07: Validate ID token signature in AuthController via OIDC discovery
BLOCK-08: Use batchItemFailures in all Lambda SQS handlers
BLOCK-09: Increase SQS visibility timeout from 180s to 720s
FIX-10: Scope dispatcher queries to own proposals (IDOR fix)
oss-index-creator Lambda was missing functionName, arm64 architecture,
and explicit log retention — all required by the engineering handbook.
CI workflow was not passing node-version to reusable workflows, risking
drift. Removed unused _api_request helper from all four main Lambdas.
Added missing suggestions log group to foundation stack.
