在 websocket 握手中设置 Cookie

Question

在WebSocket的握手，我怎么能添加Set-Cookie的Upgrade响应？

我尝试了以下代码

import (

    //"encoding/json"

    "golang.org/x/net/websocket"

    //"io"

    "log"

    "net/http"

)

func main() {

    http.HandleFunc("/v2", onV2Handshake)

    //  Ports below 1024 can be opened only by root.

    err := http.ListenAndServe(":8080", nil)

    // err := http.ListenAndServeTLS(":443", "cert.pem", "key.pem", nil)

    if err != nil {

        log.Panicln(err)

    }

}

func EchoServer(ws *websocket.Conn) {

    //io.Copy(ws, ws)

}

func onV2Handshake(writer http.ResponseWriter, req *http.Request) {

    cookie := http.Cookie{Name: "_c_id_", Value: "abcd", Path: "/", HttpOnly: true, Secure: false}

    http.SetCookie(writer, &cookie)

    server := websocket.Server{Handler: websocket.Handler(EchoServer)}

    server.ServeHTTP(writer, req)

}

握手已成功完成，但没有Set-Cookie响应的 HTTP 标头。

Connection:Upgrade

Sec-WebSocket-Accept:wWtU5pygFsiY0aTzMRzJEQcgnZc=

Sec-WebSocket-Protocol:wamp.2.json

Upgrade:websocket

根据RFC6455，这应该有效

还可能存在其他标头字段，例如 cookie

我在 NodeJS 中没有这个问题。

Answer 1

cookie := http.Cookie{Name: "_c_id_", Value: "abcd", Path: "/", HttpOnly: true, Secure: false}server := websocket.Server{Handler: websocket.Handler(EchoServer)}server.Config.Header = make(map[string][]string)server.Config.Header.Set("Set-Cookie", cookie.String())server.ServeHTTP(writer, req)