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support_backend/specs/002-saas-integration/data-model.md
T
saqib mirandClaude Sonnet 5 8d5731340d feat: implement SaaS product integration trust boundary (US1 MVP)
Implements tasks T001-T020 from specs/002-saas-integration/tasks.md
(Setup, Foundational, and User Story 1 - the P1 MVP: every inbound
request is authenticated and trusted before anything happens).
User Story 2 (admin onboarding/rotation/revocation) and User Story 3
(rate limiting) are not yet implemented (T021-T032 remain).

Schema (prisma/schema.prisma + initial migration):
- Replace the placeholder Product model (leftover starter-template
  scaffolding: code/description/ProductStatus enum) with the real
  docs/06-database-schema.md shape (externalProductId,
  supportEnabled, status).
- Add ProductIntegration (credential ref, rotation/revocation state,
  allowed scope, per-integration/per-user rate limits) and
  CustomerReference models.
- Align AuditLog to docs/06's shape (actor/actorType/entityType/
  entityId/reason/metadata) -- the placeholder shape had no fields
  to satisfy this feature's audit requirements.

Auth:
- HMAC-signed short-lived tokens (issue/verify) with jti-based replay
  defense via Redis and a bounded clock-skew tolerance.
- Credential secrets are AES-256-GCM encrypted at rest (new required
  INTEGRATION_CREDENTIAL_ENCRYPTION_KEY env var) since no secret
  manager exists in this stack yet -- see research.md "Credential
  storage".
- New product-integration-auth.plugin.ts Fastify plugin runs the
  validation order in contracts/inbound-request-contract.md and
  populates request.reqContext only on full success; every attempt
  (success or failure) is audit-logged without ever persisting the
  raw token/credential. Unregistered product and invalid credential
  return an identical response (FR-010).
- New POST /v1/support/requests endpoint exercises the boundary
  end-to-end (ticket creation itself is a future feature).

Also:
- Fix docker-compose.test.yml's container_name collisions --
  discovered while testing this change concurrently is now covered
  by an app-level regression test (separate commit).
- Fix test:unit to scope to tests/unit only (it was running the
  entire tests/** glob including integration tests) -- this feature's
  new integration test makes real Prisma/Redis calls, unlike the
  prior instantiation-only checks, so the existing glob-scoping gap
  became actually harmful.
- Update Jenkinsfile with the new required credential.

Verified: full quality gate (typecheck/lint/format/architecture/
unit tests) passes; all of User Story 1's quickstart scenarios
manually verified end-to-end against a live server + Postgres +
Redis; the new integration test suite verified against a live
database (not run as part of `npm test`, matches existing
test:integration convention).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-21 18:40:43 +05:30

5.0 KiB

Phase 1 Data Model: SaaS Product Integration & Inbound Request Trust

All models below use cuid() ids, matching docs/06-database-schema.md. This supersedes the current placeholder Product model in prisma/schema.prisma (see research.md "Reconciling the placeholder Prisma schema").

Product (revised)

Field Type Notes
id String @id @default(cuid())
externalProductId String @unique Reference into the SaaS — not authoritative here (Constitution Principle I)
name String
supportEnabled Boolean @default(true) Per spec.md/docs/01 §5: support is enabled by default per product
status String active | suspended | deprecated — admin-editable, drives FR-011/FR-012
createdAt / updatedAt DateTime

Relations added by this feature: integration ProductIntegration? (1:1). Relations to KnowledgeEntry[], Runbook[], Ticket[] from doc 06 are deferred until those models exist in their owning features (Phase 3/5) — Prisma can't reference a model that doesn't exist yet.

ProductIntegration

Field Type Notes
id String @id @default(cuid())
productId String @unique 1:1 with Product
credentialRef String AES-256-GCM-encrypted secret (ciphertext, not plaintext) — see research.md "Credential storage" for why this isn't a real secret-manager pointer yet
previousCredentialRef String? Same encryption, set during a rotation's transition window (research.md)
previousCredentialExpiresAt DateTime? When the previous credential stops being accepted
authMechanism String signed_token for this feature; free-text so a future integration can use oauth2_client_credentials or mtls without a schema change
allowedScope Json Structured scope: at minimum { tenantIds?: string[], allowAnyTenant?: boolean } — validated against inbound tenantId/userId (FR-003)
rateLimitPerMinute Int @default(60) Integration-level limit (FR-009), admin-editable
rateLimitPerUserPerMinute Int @default(20) Per-user-within-integration limit (FR-009)
status String @default("active") active | suspended — independent of Product.status so an integration can be disabled without touching the product record
rotatedAt DateTime? Last rotation timestamp
revokedAt DateTime? Set on revocation; a revoked integration's credentialRef and previousCredentialRef are both immediately invalid regardless of previousCredentialExpiresAt
createdAt DateTime @default(now())

Validation rule: A token is accepted only if it verifies against credentialRef, OR against previousCredentialRef AND now() < previousCredentialExpiresAt — AND revokedAt IS NULL — AND the owning Product.status == 'active' AND this record's own status == 'active'.

CustomerReference

Field Type Notes
id String @id @default(cuid())
externalUserId String Reference only — never authoritative (Constitution Principle I)
externalTenantId String
createdAt DateTime @default(now())

Unique constraint: @@unique([externalUserId, externalTenantId]) — first-seen wins; repeat requests for the same user+tenant reuse the same reference row rather than creating duplicates.

Authentication Audit Event → reuses AuditLog

No new model. Every authentication attempt writes one AuditLog row:

AuditLog field Value for an auth event
actor The ProductIntegration.id if resolvable (even on failure, once the credential at least identifies a product), else "unknown"
actorType system
action integration.auth.success | integration.auth.failure
entityType ProductIntegration
entityId The ProductIntegration.id
reason On failure: which check failed (invalid_credential | suspended | out_of_scope | expired | replayed) — never the raw token/credential
metadata { externalUserId?, externalTenantId? } — no raw credential value, ever (FR-007/FR-010)
createdAt now()

Inbound Request Contract (validated shape, not persisted as its own table)

Extends docs/02-integration-and-security.md §3 with the reserved idempotency field from spec.md FR-012:

Field Type Notes
productId string The external product id as the caller knows it — resolved to internal Product.id during validation
tenantId string CustomerReference.externalTenantId
userId string CustomerReference.externalUserId
source string e.g. "docuqube-web"
problem string Free-text — not validated/interpreted by this feature
feature string? Optional
referenceIds string[]? Optional
context Record<string, unknown>? Optional
idempotencyKey string? Reserved per FR-012 — accepted and echoed if present, not deduplicated against anything yet

Validated with a Zod .strict() schema (research.md) — any field not in this list rejects the whole request.