From 0c55b599ef7f641caf5bdce14723166da57baee9 Mon Sep 17 00:00:00 2001
From: WanWanYun <wanwanyun@example.com>
Date: Tue, 11 Nov 2025 23:23:48 +0800
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- 添加 generateShareUrl 辅助函数，智能处理端口号
- 支持通过 PUBLIC_PORT 环境变量配置nginx监听端口
- 更新 POST /api/share/create 使用新的URL生成方法
- 更新 GET /api/share/my 使用新的URL生成方法
- 修复IP模式部署时分享链接无法正常访问的问题
---
 backend/server.js | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/backend/server.js b/backend/server.js
index 6121a3e..f847852 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -222,6 +222,30 @@ function formatFileSize(bytes) {
   return Math.round(bytes / Math.pow(k, i) * 100) / 100 + ' ' + sizes[i];
 }
 
+
+// 生成分享URL（处理非标准端口）
+function generateShareUrl(req, shareCode) {
+  const protocol = req.protocol;
+  const host = req.get('host'); // 可能包含或不包含端口
+
+  // 如果 host 已经包含端口号，直接使用
+  if (host.includes(':')) {
+    return `${protocol}://${host}/s/${shareCode}`;
+  }
+
+  // 如果没有端口号，检查是否需要添加
+  // 从环境变量读取公开端口（nginx监听的端口）
+  const publicPort = process.env.PUBLIC_PORT || null;
+
+  // 如果配置了公开端口，且不是标准端口（80/443），则添加端口号
+  if (publicPort && publicPort !== '80' && publicPort !== '443') {
+    return `${protocol}://${host}:${publicPort}/s/${shareCode}`;
+  }
+
+  // 标准端口或未配置，不添加端口号
+  return `${protocol}://${host}/s/${shareCode}`;
+}
+
 // ===== 公开API =====
 
 // 健康检查
@@ -1209,7 +1233,7 @@ app.post('/api/share/create', authMiddleware, (req, res) => {
     db.prepare('UPDATE shares SET storage_type = ? WHERE id = ?')
       .run(req.user.current_storage_type || 'sftp', result.id);
 
-    const shareUrl = `${req.protocol}://${req.get('host')}/s/${result.share_code}`;
+    const shareUrl = generateShareUrl(req, result.share_code);
 
     res.json({
       success: true,
@@ -1236,7 +1260,7 @@ app.get('/api/share/my', authMiddleware, (req, res) => {
       success: true,
       shares: shares.map(share => ({
         ...share,
-        share_url: `${req.protocol}://${req.get('host')}/s/${share.share_code}`
+        share_url: generateShareUrl(req, share.share_code)
       }))
     });
   } catch (error) {