我正在尝试在 chrome浏览器客户端和服务器之间启动websocket 连接。
我的实施概述:有一组不同的启动和运行项目。主项目是所有其他项目的枢纽,它处理所有 http 请求、路由和其他子项目的代理。这些所有项目都使用负载平衡器。我的尝试是创建一个从 chrom 浏览器到一个子项目的 websocket 连接。
球童版本:0.9.3
websocket 库:github.com/gorilla/websocket
主要项目的球童配置:
https://{$DOMAIN_NAME}/analytics/ {
tls ../resources/security/server.pem ../resources/security/server.key
proxy / https://localhost:8107/analytics {
websocket
insecure_skip_verify
}
}
子项目的球童配置:
localhost:{$ANALYTICS_CADDY_PORT}/analytics {
root webapps/analytics
gzip
ext .html
tls {$ANALYTICS_CERTIFICATE_FILE} {$ANALYTICS_KEY_FILE}
proxy /api https://localhost:{$ANALYTICS_HTTPS_PORT} {
websocket
insecure_skip_verify
}
}
在分析子项目中,“/api/ws”会触发 CreateSocketConnection() 方法。
//Starting the API server
router := routes.NewRouter()
http.Handle("/", router)
http.HandleFunc("/api/ws", api.CreateSocketConnection)
CreateSocketConnection 实现:
func CreateSocketConnection(w http.ResponseWriter, r *http.Request) {
var upgrader = websocket.Upgrader{
ReadBufferSize: 1024,
WriteBufferSize: 1024,
}
_, err = upgrader.Upgrade(w, r, nil)
if err != nil {
log.Fatal("upgrader failed :", err.Error())
}
//controllers.HandleSocket(ws)
}
客户端实现:
conn = new WebSocket("wss://xxxx.com/analytics/api/ws");
问题是我在后端没有收到任何错误日志,但浏览器上的套接字连接失败。
WebSocket connection to 'wss://xxxx.com/analytics/api/ws' failed: Error during WebSocket handshake: Unexpected response code: 502
请求头:
Accept-Encoding:gzip, deflate, sdch, br
Accept-Language:en-US,en;q=0.8
Cache-Control:no-cache
Connection:Upgrade
Cookie:username=admin; tenantid=1; tenantdomain=super.com;
DNT:1
Host:xxxx.com
Origin:https://xxxx.com
Pragma:no-cache
Sec-WebSocket-Extensions:permessage-deflate; client_max_window_bits
Sec-WebSocket-Key:O/DS1lRHzXptoWz5WR131A==
Sec-WebSocket-Version:13
Upgrade:websocket
User-Agent:Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.59 Safari/537.36
但响应头如下:
Content-Encoding:gzip
Content-Length:40
Content-Type:text/plain; charset=utf-8
Date:Sat, 29 Oct 2016 03:13:23 GMT
Server:Caddy
Vary:Accept-Encoding
X-Content-Type-Options:nosniff
请注意,我在 CreateSocketConnection 方法中获取请求标头,如下所示:
map[
Connection:[Upgrade]
X-Forwarded-For:[127.0.0.1, 127.0.0.1] Dnt:[1]
Origin:[https://xxxx.com]
Pragma:[no-cache]
Sec-Websocket-Extensions:[permessage-deflate; client_max_window_bits]
Sec-Websocket-Version:[13]
Accept-Encoding:[gzip]
User-Agent:[Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.59 Safari/537.36]
Cache-Control:[no-cache]
Sec-Websocket-Key:[O/DS1lRHzXptoWz5WR131A==]
Upgrade:[websocket]
Cookie:[username=admin; tenantid=1; tenantdomain=super.com; ]
Accept-Language:[en-US,en;q=0.8]]
我在实施中遗漏了什么吗?
提前致谢