golang https server如何设计方便抓包定位且安全

代码
测试

用go写后端https服务时，需要定位https包中的内容是否符合预期。

有涉猎的朋友应该了解过https有一种keylog技术，它允许在HTTPS连接中捕获和记录SSL或TLS会话密钥，以便于调试和分析加密流量。

本文将的就是通过可控制开启和关闭的keylog功能，提供安全便捷的调试方法。

代码
服务端代码如下

package main

 import (
     "crypto/tls"
     "github.com/gin-gonic/gin"
     "hbp_common/Base"
     "io"
     "log"
     "net/http"
     "os"
     "path/filepath"
 )
 
 var tlsConfig *tls.Config
 var keylogpath string
 
 const (
     ApiCertPath = "/root/testssl/cert.pem"
     ApikeyPath  = "/root/testssl/key.pem"
 )
 
 func main() {
     route := gin.Default()
 
     route.GET("/hello", func(c *gin.Context) {
         c.JSON(http.StatusOK, gin.H{"result": "word"})
     })
 
     ListenAndSeverTls(route)
 }
 
 func SetEnableKeyLog(ctx *gin.Context) {
     enable := ctx.Param("enable")
     if enable == "enable" {
         var err error
         tlsConfig.KeyLogWriter, err = KeyLogWrite(keylogpath)
         if err != nil {
             ctx.AbortWithStatus(http.StatusForbidden)
             return
         }
     } else if enable == "disable" {
         tlsConfig.KeyLogWriter = nil
         err := os.RemoveAll(keylogpath)
         if err != nil {
             ctx.AbortWithStatus(http.StatusForbidden)
             return
         }
     } else {
         ctx.AbortWithStatus(http.StatusBadRequest)
         return
     }
     ctx.Status(http.StatusOK)
 }
 
 func KeyLogWrite(path string) (io.Writer, error) {
     keyLogFile, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
     if err != nil {
         log.Fatal(err.Error())
     }
     return keyLogFile, err
 }
 
 func ListenAndSeverTls(route *gin.Engine) {
     defer Base.SafePanic()
     keylogpath = filepath.Dir(ApiCertPath) + "/keylog"
 
     // 加载证书和密钥
     cert, err := tls.LoadX509KeyPair(ApiCertPath, ApikeyPath)
     if err != nil {
         log.Panic("ListenAndSeverTls failed! LoadX509KeyPair err:[%s]", err)
     }
 
     // 配置TLS
     tlsConfig = &tls.Config{KeyLogWriter: nil}
     tlsConfig.Certificates = []tls.Certificate{cert}
 
     listener, err := tls.Listen("tcp", ":24443", tlsConfig)
     if err != nil {
         log.Panic("ListenAndSeverTls failed! ListenTLS err:[%s]", err)
     }
     server := http.Server{Handler: route, Addr: ":24443", TLSConfig: tlsConfig}
 
     //注册keylog记录使能接口
     //PUT https://localhost:8443/debug/keylog/enable 使能tls keylog
     //PUT https://localhost:8443/debug/keylog/disable 失能tls keylog
     route.PUT("/debug/keylog/:enable", SetEnableKeyLog)
 
     err = server.Serve(listener)
     if err != nil {
         log.Panic("ListenAndSeverTls failed! Serve err:[%s]", err)
     }
 }