完善接单平台上传与物品规则

apps/backend/src/routes/files.ts

@@ -0,0 +1,31 @@
+import { Router } from 'express'
+
+import { getStoredFileObject } from '../services/file-storage/file-storage-service.js'
+import { buildNotFoundPayload, sendRouteError } from '../utils/http.js'
+
+const router = Router()
+
+router.get('/object', async (req, res) => {
+  try {
+    const object = await getStoredFileObject(req.query.key, req.query.variant)
+    res.setHeader('Content-Type', object.contentType || 'application/octet-stream')
+    res.setHeader('Cache-Control', 'private, max-age=300')
+    res.setHeader('X-Content-Type-Options', 'nosniff')
+    object.reader.on('error', (error) => {
+      if (!res.headersSent) {
+        sendRouteError(res, error, '读取文件失败', '[files/object]')
+      } else {
+        res.destroy(error)
+      }
+    })
+    object.reader.pipe(res)
+  } catch (error) {
+    sendRouteError(res, error, '读取文件失败', '[files/object]')
+  }
+})
+
+router.use((req, res) => {
+  res.status(404).json(buildNotFoundPayload(req))
+})
+
+export default router