Track HiveGrid Cloud planning reference

hivegrid-cloud/apps/web/app/utils/integrations/fileAccess.server.ts

@@ -0,0 +1,86 @@
+// P4 Files (AK-P4a) — shared loader/action guard for Files routes.
+//
+// Resolves the authenticated tenant context and the user's permission set once,
+// so routes can gate consistently. Module-not-active handling differs by intent
+// (§ "404 vs locked" decision):
+//   - GET loaders pass `requireModule: false` and render a locked/empty VM when
+//     `hasModule` is false (mirrors walking-skeleton.tsx).
+//   - Write actions pass `requireModule: true` → 404 (CatalogError.notFound) when
+//     the module is off, and additionally require an explicit permission.
+
+import { CatalogError, foundationErrors, requirePermission } from "@toolctrl/foundation";
+import { requireAuth } from "~/utils/loaders.middleware";
+import { getTenantIdFromUrl } from "~/utils/services/.server/urlService";
+import { getUserInfo } from "~/utils/session.server";
+import { tenantHasModule } from "~/utils/connector/tenantConnector.server";
+import { getPermissionsByUser } from "~/utils/db/permissions/userRoles.db.server";
+import { FileServiceError, type FileVisibilityContext } from "./fileService.server";
+
+export const FILES_MODULE_KEY = "files";
+
+export type FilesRouteContext = FileVisibilityContext & {
+  tenantId: string;
+  hasModule: boolean;
+};
+
+export async function loadFilesContext({
+  request,
+  params,
+  requireModule = false,
+}: {
+  request: Request;
+  params: Record<string, string | undefined>;
+  requireModule?: boolean;
+}): Promise<FilesRouteContext> {
+  await requireAuth({ request, params });
+  const [tenantId, userInfo] = await Promise.all([getTenantIdFromUrl(params), getUserInfo(request)]);
+  if (!tenantId || !userInfo.userId) {
+    throw new CatalogError(foundationErrors.notFound);
+  }
+  const [hasModule, permissions] = await Promise.all([
+    tenantHasModule({ tenantId, userId: userInfo.userId, moduleKey: FILES_MODULE_KEY }),
+    getPermissionsByUser(userInfo.userId, tenantId),
+  ]);
+  if (requireModule && !hasModule) {
+    // Mutations on a disabled module look "not found" (Bauprinzip A.5.3).
+    throw new CatalogError(foundationErrors.notFound, { module: FILES_MODULE_KEY });
+  }
+  return { tenantId, userId: userInfo.userId, permissions, hasModule };
+}
+
+/** Require a files.* permission; throws 404 (CatalogError.notFound) if missing. */
+export function requireFilesPermission(ctx: FilesRouteContext, permission: string): FilesRouteContext {
+  requirePermission({ tenantId: ctx.tenantId, userId: ctx.userId, permissions: ctx.permissions }, permission);
+  return ctx;
+}
+
+/**
+ * Bare 404 Response for throwing from Files loaders/actions. The body text is
+ * never shown to users (the route ErrorBoundary renders ServerError); we keep a
+ * `return new Response` helper so call sites can `throw notFoundResponse()`
+ * without inlining a hardcoded user-facing literal.
+ */
+export function notFoundResponse(): Response {
+  return new Response("Not Found", { status: 404 });
+}
+
+/** Bare 400 Response for invalid action input (same rationale as notFoundResponse). */
+export function badRequestResponse(): Response {
+  return new Response("Bad Request", { status: 400 });
+}
+
+/**
+ * Map a Files action error to a JSON Response for resource routes (the upload
+ * endpoints are called by the browser uploader via fetch, not via the HTML error
+ * boundary). CatalogError keeps its status + i18nKey; FileServiceError is a 400
+ * with its Klartext message key. Unknown errors are rethrown (→ 500).
+ */
+export function fileActionErrorResponse(error: unknown): Response {
+  if (error instanceof CatalogError) {
+    return Response.json({ error: error.i18nKey, code: error.code }, { status: error.status });
+  }
+  if (error instanceof FileServiceError) {
+    return Response.json({ error: error.messageKey }, { status: 400 });
+  }
+  throw error;
+}