From 4407e7ba737efcca934a9e84d1808e738f9dafe1 Mon Sep 17 00:00:00 2001
From: K-hermes <K-hermes@qq.com>
Date: Sat, 15 Aug 2026 14:07:39 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E5=A4=A7=E8=AF=B7?=
 =?UTF-8?q?=E6=B1=82=E4=BD=93=E5=AF=BC=E8=87=B4=E7=9A=84=20Empty=20body=20?=
 =?UTF-8?q?=E9=94=99=E8=AF=AF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

问题：
- 当请求体超过 Nginx 缓冲区大小（默认较小）时
- ngx.req.get_body_data() 返回 nil
- Nginx 会将请求体写入临时文件

解决：
- 检查 ngx.req.get_body_file() 获取临时文件路径
- 从临时文件读取完整请求体
- 支持任意大小的请求体（通义听悟 ~100KB）

影响：
- 修复通义听悟等数据量较大的网站同步失败问题
---
 nginx/nginx.conf | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index dfbb1ef..71be6f0 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -139,6 +139,18 @@ http {
                     ngx.req.read_body()
                     local body = ngx.req.get_body_data()
                     
+                    -- 如果 body 为空，可能是因为请求体被写入了临时文件
+                    if not body then
+                        local body_file = ngx.req.get_body_file()
+                        if body_file then
+                            local file = io.open(body_file, "r")
+                            if file then
+                                body = file:read("*all")
+                                file:close()
+                            end
+                        end
+                    end
+                    
                     if not body then
                         ngx.status = 400
                         ngx.say(cjson.encode({error = "Empty body"}))