1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
package main
import (
"log"
"net"
"net/http"
"github.com/gorilla/websocket"
)
type ServerHandler struct {
ProxyToHost string
upgrader websocket.Upgrader
}
func NewServerHandler(proxyToHost string) *ServerHandler {
return &ServerHandler{
ProxyToHost: proxyToHost,
upgrader: websocket.Upgrader{
ReadBufferSize: 1024,
WriteBufferSize: 1024,
},
}
}
func (h *ServerHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
log.Println("Got new HTTP connection")
wsconn, err := h.upgrader.Upgrade(w, r, nil)
if err != nil {
log.Printf("error: ServeHTTP: %s", err)
return
}
defer wsconn.Close()
proxyconn, err := net.Dial("tcp", h.ProxyToHost)
if err != nil {
log.Printf("error: ServeHTTP: %s", err)
return
}
defer proxyconn.Close()
log.Println("Connected to SSH server")
errc := make(chan error)
ws := &WebsocketReadWriter{wsconn}
go serviceBoth(proxyconn, ws, errc)
go serviceBoth(ws, proxyconn, errc)
<-errc
log.Println("Closing client server")
}
|
