From 44751357b47da3cbe5b5a7aa24775597778dc39b Mon Sep 17 00:00:00 2001
From: pixelmaxQM <flipped_aurora@163.com>
Date: Sat, 28 Jun 2025 17:45:11 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=B7=BB=E5=8A=A0=E8=B6=85=E6=97=B6?=
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---
 server/middleware/timeout.go | 55 ++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 server/middleware/timeout.go

diff --git a/server/middleware/timeout.go b/server/middleware/timeout.go
new file mode 100644
index 00000000..473abf6c
--- /dev/null
+++ b/server/middleware/timeout.go
@@ -0,0 +1,55 @@
+package middleware
+
+import (
+	"context"
+	"github.com/gin-gonic/gin"
+	"net/http"
+	"time"
+)
+
+// TimeoutMiddleware 创建超时中间件
+// 入参 timeout 设置超时时间（例如：time.Second * 5）
+// 使用示例 xxx.Get("path",middleware.TimeoutMiddleware(30*time.Second),HandleFunc)
+func TimeoutMiddleware(timeout time.Duration) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		ctx, cancel := context.WithTimeout(c.Request.Context(), timeout)
+		defer cancel()
+
+		c.Request = c.Request.WithContext(ctx)
+
+		// 使用 buffered channel 避免 goroutine 泄漏
+		done := make(chan struct{}, 1)
+		panicChan := make(chan interface{}, 1)
+
+		go func() {
+			defer func() {
+				if p := recover(); p != nil {
+					select {
+					case panicChan <- p:
+					default:
+					}
+				}
+				select {
+				case done <- struct{}{}:
+				default:
+				}
+			}()
+			c.Next()
+		}()
+
+		select {
+		case p := <-panicChan:
+			panic(p)
+		case <-done:
+			return
+		case <-ctx.Done():
+			// 确保服务器超时设置足够长
+			c.Header("Connection", "close")
+			c.AbortWithStatusJSON(http.StatusGatewayTimeout, gin.H{
+				"code": 504,
+				"msg":  "请求超时",
+			})
+			return
+		}
+	}
+}