调整UDM用户函数导出CSV文件

lib/core/utils/ctx/ctx.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"net/url"
 
 	"ems.agt/lib/core/vo"
 	"github.com/gorilla/mux"
@@ -59,6 +60,13 @@ func JSON(w http.ResponseWriter, code int, data any) {
 	}
 }
 
+// 将文件导出到外部下载
+func FileAttachment(w http.ResponseWriter, r *http.Request, filepath, filename string) {
+	w.Header().Set("Content-Disposition", `attachment; filename=`+url.QueryEscape(filename))
+	w.Header().Set("Content-Type", "application/octet-stream")
+	http.ServeFile(w, r, filepath)
+}
+
 /// ==== 登录用户信息， 通过中间件后预置入
 
 // 定义自定义类型作为键