g1t/apps/web/app/lib/renamed.server.ts
| 1 | import { redirect } from "react-router"; |
| 2 | |
| 3 | import { isValidNamespace } from "@g1t/contracts"; |
| 4 | |
| 5 | import { identity } from "./services.server"; |
| 6 | |
| 7 | /** |
| 8 | * A workspace that was renamed keeps its old address as a redirect for |
| 9 | * `SLUG_HOLD_DAYS`. Call this where a page is about to 404 on its first |
| 10 | * path segment: if `slug` is an old name, it throws a 301 to the same |
| 11 | * address (path and query) under the current one. Otherwise it returns, and |
| 12 | * the caller 404s as before. Only the not-found path pays for the lookup. |
| 13 | */ |
| 14 | export async function redirectIfRenamed(request: Request, slug: string): Promise<void> { |
| 15 | const old = slug.toLowerCase(); |
| 16 | // Nothing that could never have been a workspace's name is looked up. |
| 17 | if (!isValidNamespace(old)) return; |
| 18 | let current: string | null = null; |
| 19 | try { |
| 20 | current = await identity.resolveSlug(old); |
| 21 | } catch { |
| 22 | // A lookup that fails leaves the page a 404, never a 500. |
| 23 | return; |
| 24 | } |
| 25 | if (!current || current === old) return; |
| 26 | const url = new URL(request.url); |
| 27 | const segments = url.pathname.split("/"); |
| 28 | // segments[0] is the empty string before the leading slash. |
| 29 | segments[1] = current; |
| 30 | throw redirect(segments.join("/") + url.search, 301); |
| 31 | } |