From 0c0189bcef55b62b66e7b88f24e62fafa0647f98 Mon Sep 17 00:00:00 2001
From: chengww <chengww5217@163.com>
Date: Sun, 17 May 2026 19:48:43 +0800
Subject: [PATCH] =?UTF-8?q?fix(local-music):=20=E6=B3=A8=E5=86=8C=20local?=
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- main/index.ts 在 app.whenReady 之前调用 registerSchemesAsPrivileged，
  把 local 标记为 standard/secure/supportFetchAPI/stream/corsEnabled/bypassCSP，
  让 http 页面（dev server / 生产）可跨协议加载本地音频
- fileManager.ts 用 Electron 25 起推荐的 protocol.handle 替代已弃用的
  registerFileProtocol，内部转发到 file:// 自动支持 Range / 流式播放
- 修复 macOS/Linux 上去掉前导斜杠后丢失绝对路径前缀的问题
---
 src/main/index.ts               | 19 ++++++++++++++++-
 src/main/modules/fileManager.ts | 37 +++++++++++++++++++--------------
 2 files changed, 39 insertions(+), 17 deletions(-)

diff --git a/src/main/index.ts b/src/main/index.ts
index 40190df..150ebc6 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -1,7 +1,24 @@
 import { electronApp, optimizer } from '@electron-toolkit/utils';
-import { app, ipcMain, nativeImage, session } from 'electron';
+import { app, ipcMain, nativeImage, protocol, session } from 'electron';
 import { join } from 'path';
 
+// 必须在 app.whenReady() 之前注册自定义协议为特权协议，
+// 否则 http(s) 页面（dev server、生产环境的 file://）无法把 local:// 当成
+// 安全/可 fetch/可流式的资源加载，会触发 CORS 拦截或 net::ERR_UNKNOWN_URL_SCHEME
+protocol.registerSchemesAsPrivileged([
+  {
+    scheme: 'local',
+    privileges: {
+      standard: true,
+      secure: true,
+      supportFetchAPI: true,
+      stream: true,
+      bypassCSP: true,
+      corsEnabled: true
+    }
+  }
+]);
+
 import type { Language } from '../i18n/main';
 import i18n from '../i18n/main';
 import { loadLyricWindow } from './lyric';
diff --git a/src/main/modules/fileManager.ts b/src/main/modules/fileManager.ts
index ce6e823..45ae3ef 100644
--- a/src/main/modules/fileManager.ts
+++ b/src/main/modules/fileManager.ts
@@ -1,7 +1,8 @@
-import { app, dialog, ipcMain, protocol, shell } from 'electron';
+import { app, dialog, ipcMain, net, protocol, shell } from 'electron';
 import Store from 'electron-store';
 import * as fs from 'fs';
 import * as path from 'path';
+import { pathToFileURL } from 'url';
 
 import { getStore } from './config';
 
@@ -28,31 +29,35 @@ function sanitizeFilename(filename: string): string {
  */
 export function initializeFileManager() {
   // 注册本地文件协议
-  protocol.registerFileProtocol('local', (request, callback) => {
+  // Electron 25+ 起 registerFileProtocol 已弃用，改用 protocol.handle，并配合 main/index.ts
+  // 中的 registerSchemesAsPrivileged，让 audio 元素能从 http(s) 页面跨协议加载本地文件
+  protocol.handle('local', async (request) => {
     try {
-      const url = request.url;
-      // local://C:/Users/xxx.mp3
-      let filePath = decodeURIComponent(url.replace('local:///', ''));
+      // local:///<absolute-path>
+      let filePath = decodeURIComponent(request.url.replace(/^local:\/\/\/?/, ''));
 
-      // 兼容 local:///C:/Users/xxx.mp3 这种情况
+      // Windows: 协议解析后可能是 /C:/...，去掉前导斜杠
       if (/^\/[a-zA-Z]:\//.test(filePath)) {
         filePath = filePath.slice(1);
       }
 
-      // 还原为系统路径格式
-      filePath = path.normalize(filePath);
-
-      // 检查文件是否存在
-      if (!fs.existsSync(filePath)) {
-        console.error('File not found:', filePath);
-        callback({ error: -6 }); // net::ERR_FILE_NOT_FOUND
-        return;
+      // macOS/Linux 上去掉前导斜杠后会丢失绝对路径标识，这里补回
+      if (process.platform !== 'win32' && !filePath.startsWith('/')) {
+        filePath = '/' + filePath;
       }
 
-      callback({ path: filePath });
+      filePath = path.normalize(filePath);
+
+      if (!fs.existsSync(filePath)) {
+        console.error('File not found:', filePath);
+        return new Response(null, { status: 404 });
+      }
+
+      // 用 net.fetch 走 file:// 加载，自动支持 Range / streaming，让媒体元素能正常 seek
+      return net.fetch(pathToFileURL(filePath).toString());
     } catch (error) {
       console.error('Error handling local protocol:', error);
-      callback({ error: -2 }); // net::FAILED
+      return new Response(null, { status: 500 });
     }
   });