Separate completed transfers and retain original file extensions

apps/server/src/app.ts

@@ -623,7 +623,7 @@ export async function createApp(cfg: Config, options: { mailer?: Mailer } = {})
   app.get('/api/access/:id/download', async (req, reply) => {
     const accessId = id(req),
       g = accessSubject(req, accessId);
-    const { file, stream } = await service.storage.openDownload(g, accessId);
+    const { file, stream, access } = await service.storage.openDownload(g, accessId);
     const fallback =
       file.name.replace(/[^a-zA-Z0-9._ -]/g, '_').replace(/^[. ]+/, '') || 'download';
     const encoded = encodeURIComponent(file.name).replace(
@@ -643,6 +643,15 @@ export async function createApp(cfg: Config, options: { mailer?: Mailer } = {})
       stream.destroy();
       throw error;
     }
+    reply.raw.once('finish', () => {
+      if (reply.statusCode === 200 && stream.readableEnded && access.role === 'recipient') {
+        try {
+          service.storage.layout.downloaded(file.id);
+        } catch (err) {
+          req.log.warn({ err }, 'Completed file relocation will be retried');
+        }
+      }
+    });
     return reply.send(stream);
   });
   app.get('/api/access/:id/preview', async (req, reply) =>