756e9b821c0e0a83e9bcdb0cc3ac6b710b64eb27
3
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
|
|
c444ff570b |
feat: let one module contribute a browser renderer to another's capability
The platform has had a complete story for one module using another's
*backend* since ADR 0006 — capabilities, versioned ranges, provider
registration. It has had none at all for one module using another's *browser*
code, and every workaround is wrong in a way that matters: a consumer cannot
import a peer module, it cannot re-implement a renderer for a domain it does
not own, and a second `entrypoints` role would put the platform in charge of
deciding when a slot inside someone else's screen should be filled.
Add a generic browser contribution. `manifestVersion: 7` declares one:
namespaced id, its own version, a target capability, a compatible range, and
one artifact. That is the complete list, and the omissions are the decision —
no payload schema, slot, ordering, or rendering hint exists anywhere, so Core
cannot learn what a slide is because the declaration cannot express it.
Discovery resolves a contribution artifact through the *identical* loop every
other compiled entrypoint uses, inheriting the path, containment, symlink,
extension, and file-kind checks rather than getting a weaker copy of them. The
registry publishes one only when another eligible module provides the target
capability within the declared range; otherwise it is absent rather than
mounted and broken. `apps/api` serves it as a sibling of the artifact and
display routes, with the same policy: three lookup keys, one exact match, one
already-validated path, and one indistinguishable 404 for unknown, undeclared,
stale, and incompatible alike.
A consumer discovers through the host, never through a URL. Its descriptor
carries identity, version, and capability; the URL stays server-side and is
resolved exactly as `api.request("records")` is. A module can only ever see
contributions aimed at a capability it itself provides, and cannot name its
way to anything else — a mount for a withheld id fails without fetching.
The consumer owns the domain contract entirely. Input is opaque JSON, checked
structurally so a Date, a function, a cycle, or `undefined` fails at the
boundary rather than vanishing somewhere far from the mistake, and checked for
nothing else. A contributed renderer receives its own id and that input: no
API client, realtime, principal, configuration, database, storage, or
credential. Loading one grants its module nothing.
The contribution ABI is versioned separately from the module UI ABI, because
the two have different shapes and lifecycles and coupling them would force
every module to rebuild whenever either moved. It supports asynchronous
readiness, update-without-remount (a screen that remounted per tick would
restart animations and reload media), deterministic cleanup in a `finally`,
and sanitized failure that never carries the consumer's domain data. Each
renderer mounts in its own isolated root with its own stylesheet.
The template now declares a contribution, so `pnpm build` exercises the whole
authoring path, and the shell suite drives the full relationship — one module
discovering, mounting, updating, and unmounting another's React renderer with
neither importing the other.
Co-Authored-By: Claude Opus 5 <[email protected]>
|
||
|
|
2e0fe059c3 | feat: add display kiosk host | ||
|
|
a02deb9433 |
feat: publish validated module UI artifacts at a platform-owned URL
Phase 6C pass 1. ADR 0024 named the one thing missing between the module UI build pipeline and the generic host loader: Core resolves entrypoints.ui to an absolute server filesystem path, and a browser needs a URL. This adds that publication layer. Core owns the policy. createModuleUiPublicationRegistry builds, from the discovered and started module inventory, the answer to "may this be published, and which exact file is it?" — publishable means the module survived discovery and declares entrypoints.ui, with no new lifecycle state and no installer. apps/api owns the transport: GET /api/v1/module-ui/<module-id>/<version>. Both segments are lookup keys, not path components. An exact match yields the canonical artifact path discovery already validated; no request value is ever composed into a filesystem path, and the route declares no wildcard segment, so traversal, encoded separators, sibling chunks, package-root files, and source maps are unreachable by construction. An installed module directory never becomes a static file root. The prefix is a sibling of /api/v1/modules/, not a child: `ui` is a legal module route segment, so a module registering GET /ui/:version would otherwise compete with the platform for one URL with routing order deciding the winner. The route requires no authentication, deliberately. Fetching the bundle confers no authority, and a cookie-gated route would break cross-origin import(), which sends none. The cost is stated rather than hidden: a caller who knows a module id and its exact version can download that bundle. The three failure modes return one identical 404 so the route is not an enumeration oracle. Caching is no-cache with a strong SHA-256 ETag and RFC 9110 If-None-Match handling, not immutable: without an installer nothing stops a version being rebuilt with different bytes. The server reads bytes and writes bytes — never imports, evaluates, or transforms the artifact. Nothing mounts a module UI. A host could now obtain a URL, which was previously impossible; there is still no Dashboard shell, navigation, or metadata endpoint. Co-Authored-By: Claude Opus 5 <[email protected]> |