Add Twitter Spaces support

Fixes #459

src/routes/space.nim

@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: AGPL-3.0-only
+import asyncdispatch, strutils
+import jester
+
+import router_utils
+import ".."/[types, formatters, redis_cache]
+import ../views/[general, space]
+import media
+
+export space
+
+proc createSpaceRouter*(cfg: Config) =
+  router spaceRoute:
+    get "/i/spaces/@id":
+      cond @"id".allCharsInSet({'a'..'z', 'A'..'Z', '0'..'9'})
+      let sp = await getCachedAudioSpace(@"id")
+
+      if sp.id.len == 0:
+        resp Http404, showError("Space not found", cfg)
+
+      let prefs = requestPrefs()
+      resp renderMain(renderSpace(sp, prefs, request.path), request, cfg, prefs,
+                      sp.title, ogTitle=sp.title)
+
+    get "/i/spaces/@id/stream":
+      cond @"id".allCharsInSet({'a'..'z', 'A'..'Z', '0'..'9'})
+      let sp = await getCachedAudioSpace(@"id")
+
+      if sp.m3u8Url.len == 0:
+        resp Http404
+
+      let manifest = await safeFetch(sp.m3u8Url)
+      if manifest.len == 0:
+        resp Http502
+
+      resp proxifyVideo(manifest, requestPrefs().proxyVideos, sp.m3u8Url), m3u8Mime