ehoandClaude Sonnet 5
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New GET /beoordeling/{id} shows one aanvraag's status, linked documents, and a
canBesluiten decision flag, gated by the same CanBeoordelen capability as the
werkvoorraad list. Reads through IZaakSource.ListCases rather than a new seam
method (WP-66 needs one anyway for the real write); owner BSN is masked.
Fixes a real gap found while wiring this up: the behandelportal's login was still
WP-61's copied citizen/BSN DigiD flow, so nothing ever sent X-Medewerker and the
werkvoorraad screen (WP-64) always denied in a real browser. A dev-only
medewerkerInterceptor (mirrors the existing ?role= stand-in as ?rollen=) fixes that.
WP-65's own Risks note authorized splitting read from write across sessions given
its size; this is the read half. The decision-recording mutation is next (65b).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
84 lines
5.2 KiB
Markdown
84 lines
5.2 KiB
Markdown
# Roles & access (ABAC) — quick reference
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A short, practical reference for **which roles exist, how to switch between them, and what each
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unlocks**. For the full design and rationale see
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[PRD-0002 — Attribute-Based Access Control](../project/prd/0002-attribute-based-access-control.md).
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## Login vs. role — they are separate
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**Login is faked.** This POC has one hardcoded, stubbed DigiD user (a 9-digit BSN); there is no
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real identity provider and you do **not** pick a role when you log in.
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The **acting role** is a separate, **dev-only** stand-in for the coarse role a real AD/OIDC identity
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would carry. It is orthogonal to the login user — you log in as the one faked user, then choose an
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acting role to exercise the drafter/approver/admin flows.
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## The three roles
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`drafter` (default) · `approver` · `admin` — defined by the `Role` type in
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`src/app/shared/domain/role.ts`.
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## How to switch role (dev only)
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Both are wired only under `isDevMode()` — they do not exist in a production build.
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- **Dev switcher (easiest):** open the `⚙ state` panel (bottom-right in a dev build) and pick a
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role from the **role** dropdown. The page reloads with the new role.
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- **`?role=` query param:** append `?role=drafter`, `?role=approver`, or `?role=admin` to any URL.
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The value is **sticky for the browser tab** (`sessionStorage`), so it survives navigation that
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drops the query param. An unknown value falls back to `drafter`; open a fresh tab or set
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`?role=drafter` to reset.
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Mechanism: `src/app/shared/infrastructure/role.ts` reads the role and the HTTP interceptor stamps it
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as an `X-Role` header on role-aware requests; the backend resolves it into a `Principal`.
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## Actor kinds (backend, WP-62)
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`X-Role`/`Principal` above is a coarse role that applies to **either** of two actor kinds the
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backend now models (ADR-0002 §3): a **zorgverlener** (the SSP's citizen — has a BSN) or a
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**medewerker** (backoffice employee — no BSN, has `Rollen`). `StubIdentityProvider` picks the
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medewerker kind from a dev header, `X-Medewerker` (+ `X-Rollen`), mirroring `X-Role`/`X-Subject`
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above. The SSP's FE never sends either header — it has no medewerker screens. The
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**behandelportal** does: `apps/behandelportal/src/app/auth/infrastructure/medewerker.interceptor.ts`
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stamps every request as one fixed stand-in medewerker (dev-only, same `isDevMode()` gate as
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`roleInterceptor`), since this app has no real employee-SSO login yet (ADR-0002 §3 — the two
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apps' login flows are expected to diverge, and this stand-in is that flow's placeholder).
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`?rollen=` (sticky per tab, mirroring `?role=`) picks the medewerker's rollen —
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`?rollen=geen` exercises the deny path; the default is `behandelaar`.
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`Authz.CanBeoordelen(caller)` is the first medewerker capability — a rol-based decision flag
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(`MedewerkerRol.Behandelaar`), surfaced on `GET /me` as `aanvraag:beoordelen` (appended
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alongside `RoleCapabilities`'s role-derived set, since that switch is keyed on `Principal` and
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can't see the actor kind) — gates the behandelportal's `/dashboard` werkvoorraad queue (WP-64)
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and its `/aanvraag/:id` beoordeling detail (WP-65).
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## What each role unlocks
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Capabilities are resolved server-side (`backend/src/BigRegister.Api/Domain/Authorization/Authz.cs`,
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`RoleCapabilities`) and returned by `GET /me`.
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| Role | Capabilities (`/me`) | Reaches |
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| ---------- | --------------------------------------------------- | ------------------------------------------------------------------------------------ |
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| `drafter` | _(none of the admin capabilities)_ | Composes letters; the only role that may reveal a BSN |
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| `approver` | `brief:approve`, `brief:reject`, `brief:send` | Reviews/approves letters (four-eyes: approver ≠ drafter) |
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| `admin` | `orgtemplate:edit`, `stamdata:edit`, `cases:manage` | Huisstijl `/brief/huisstijl`, Stamdata `/beheer/stamdata`, Aanvragen `/beheer/zaken` |
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The admin pages appear in the header nav and in the dashboard **"Beheer"** section whenever the
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matching capability is present — otherwise they are reachable only by URL (and the route guard
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redirects a user who lacks the capability back to `/dashboard`).
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## The one principle
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Identity (AD/OIDC, faked here) supplies **coarse roles**; the app owns a **fine-grained capability**
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model on top. The **same `Authz` check both emits a capability** (on `GET /me`, consumed by
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`AccessStore` in `src/app/shared/application/access.store.ts`) **and enforces the endpoint** — one
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source of truth, so the two can't drift. **The UI only renders decisions; it never derives access
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from a role.** Anything tied to a specific resource's live state (e.g. may-I-edit _this_ letter,
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reveal _this_ BSN) rides that screen's decision DTO rather than `/me`.
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## See also
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- [PRD-0002 — ABAC](../project/prd/0002-attribute-based-access-control.md) — full design.
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- `backend/src/BigRegister.Api/Domain/Authorization/Authz.cs` — role → capability, and the enforce twin.
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- `src/app/shared/infrastructure/role.ts` — the dev `?role=` reader + `X-Role`.
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- `src/app/shared/application/access.store.ts` — how the FE mirrors `/me` capabilities (deny-by-default).
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