From 9f3c9abf5b096edea465a720175e4bae4295841e Mon Sep 17 00:00:00 2001
From: Jeff Emmett <jeffemmett@gmail.com>
Date: Fri, 27 Feb 2026 16:20:36 -0800
Subject: [PATCH] fix: canonicalize space URLs to subdomain pattern
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rspace.online/{space}/{moduleId} now 301-redirects to
{space}.rspace.online/{moduleId} — spaces are subdomains,
not path segments. e.g. rspace.online/demo/rnotes →
demo.rspace.online/rnotes.

Landing pages (rspace.online/{moduleId}) unchanged.
API sub-path rewrite for demo "Try Demo" unchanged.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 server/index.ts | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/server/index.ts b/server/index.ts
index 972a47e..00de104 100644
--- a/server/index.ts
+++ b/server/index.ts
@@ -1124,15 +1124,17 @@ const server = Bun.serve<WSData>({
 			return app.fetch(rewrittenReq);
 		}
 
-		// ── Bare-domain module routes: rspace.online/{moduleId}[/...] ──
-		// Exact module path → landing page; sub-paths rewrite to /demo/...
+		// ── Bare-domain routing: rspace.online/{...} ──
 		if (!subdomain && hostClean.includes("rspace.online")) {
 			const pathSegments = url.pathname.split("/").filter(Boolean);
 			if (pathSegments.length >= 1) {
 				const firstSegment = pathSegments[0];
 				const allModules = getAllModules();
+				const knownModuleIds = new Set(allModules.map((m) => m.id));
 				const mod = allModules.find((m) => m.id === firstSegment);
+
 				if (mod) {
+					// rspace.online/{moduleId} → landing page
 					if (pathSegments.length === 1) {
 						// 1. Check for inline rich landing page
 						if (mod.landingPage) {
@@ -1157,12 +1159,23 @@ const server = Bun.serve<WSData>({
 						});
 						return new Response(html, { headers: { "Content-Type": "text/html" } });
 					}
-					// Sub-paths → rewrite to /demo/{moduleId}/...
+					// rspace.online/{moduleId}/sub-path → rewrite to demo space internally
 					const rewrittenPath = `/demo${url.pathname}`;
 					const rewrittenUrl = new URL(rewrittenPath + url.search, `http://localhost:${PORT}`);
 					const rewrittenReq = new Request(rewrittenUrl, req);
 					return app.fetch(rewrittenReq);
 				}
+
+				// rspace.online/{space}/{...} → redirect to {space}.rspace.online/{...}
+				// (space is not a module ID — it's a space slug, canonicalize to subdomain)
+				if (!knownModuleIds.has(firstSegment) && pathSegments.length >= 2) {
+					const space = firstSegment;
+					const rest = "/" + pathSegments.slice(1).join("/");
+					const baseDomain = hostClean.replace(/^www\./, "");
+					return Response.redirect(
+						`${url.protocol}//${space}.${baseDomain}${rest}${url.search}`, 301
+					);
+				}
 			}
 		}