From 8951e32a0eb2fabc3e067b4f7bbff8d16ea9f89f Mon Sep 17 00:00:00 2001
From: LaoShui <79132480+laoshuikaixue@users.noreply.github.com>
Date: Wed, 18 Feb 2026 17:02:15 +0800
Subject: [PATCH] =?UTF-8?q?refactor(server):=20=E4=BC=98=E5=8C=96=E6=96=87?=
 =?UTF-8?q?=E4=BB=B6=E4=B8=8A=E4=BC=A0=E9=85=8D=E7=BD=AE=E5=92=8CMD5?=
 =?UTF-8?q?=E8=AE=A1=E7=AE=97=E9=80=BB=E8=BE=91?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 移除cloud.js中的异步Promise包装，直接同步计算MD5哈希值
- 在server.js中提取上传大小限制为常量配置
- 统一使用字节单位常量管理文件上传大小限制
- 简化代码结构，提高可读性和维护性
---
 module/cloud.js | 6 +-----
 server.js       | 9 ++++++---
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/module/cloud.js b/module/cloud.js
index 2f80fc8..bb5f157 100644
--- a/module/cloud.js
+++ b/module/cloud.js
@@ -69,11 +69,7 @@ module.exports = async (query, request) => {
     }
   } else {
     if (!fileMd5) {
-      fileMd5 = await new Promise((resolve) => {
-        setImmediate(() => {
-          resolve(crypto.createHash('md5').update(query.songFile.data).digest('hex'))
-        })
-      })
+      fileMd5 = crypto.createHash('md5').update(query.songFile.data).digest('hex')
     }
     fileSize = query.songFile.data.byteLength
   }
diff --git a/server.js b/server.js
index a02d4d8..1bc6e86 100644
--- a/server.js
+++ b/server.js
@@ -178,12 +178,15 @@ async function consturctServer(moduleDefs) {
   /**
    * Body Parser and File Upload
    */
-  app.use(express.json({ limit: '500mb' }))
-  app.use(express.urlencoded({ extended: false, limit: '500mb' }))
+  const MAX_UPLOAD_SIZE_MB = 500
+  const MAX_UPLOAD_SIZE_BYTES = MAX_UPLOAD_SIZE_MB * 1024 * 1024
+
+  app.use(express.json({ limit: `${MAX_UPLOAD_SIZE_MB}mb` }))
+  app.use(express.urlencoded({ extended: false, limit: `${MAX_UPLOAD_SIZE_MB}mb` }))
 
   app.use(fileUpload({
     limits: {
-      fileSize: 500 * 1024 * 1024
+      fileSize: MAX_UPLOAD_SIZE_BYTES
     },
     useTempFiles: true,
     tempFileDir: require('os').tmpdir(),