https://www.fastssh.com/page/create-ssh-cdn-websocket/server/这其实不是标准的websocket报文(服务器响应报文无Sec-Websocket-Accept字段)，所以无法使用github.com/gorilla/websocket包：GET / HTTP/1.1
Host: hostname:8080
User-Agent: Go-http-client/1.1
Connection: Upgrade
Origin: http://hostname:8080
Sec-WebSocket-Key: t+M8AiisFSInx6hLi1YBOg==
Sec-WebSocket-Version: 13
Upgrade: websocketHTTP/1.1 101 Switching Protocol
Server: nginx/1.24.0
Date: Sat, 04 May 2024 08:37:56 GMT
Content-Length: 1048576000000
Connection: upgrade

首先申请账户：

使用golang1.20 编写转发程序：

package mainimport ("bufio""fmt""net""io""net/http"_ "strings"
)var upgradeHeaders = []string{"GET / HTTP/1.1","Host: sg-public1.sshws.net:80","User-Agent: Go-http-client/1.1","Connection: Upgrade","Origin: http://sg-public1.sshws.net:80","Sec-WebSocket-Key: t+M8AiisFSInx6hLi1YBOg==","Sec-WebSocket-Version: 13","Upgrade: websocket","","",
}func main() {listener, err := net.Listen("tcp", ":6022")if err != nil {fmt.Println("Error listening on port 6022: ", err)return}defer listener.Close()for {conn, err := listener.Accept()if err != nil {fmt.Println("Error accepting connection: ", err)continue}go handleClient(conn)}
}func handleClient(conn net.Conn) {defer conn.Close()// Connect to the WebSocket serverserverConn, err := net.Dial("tcp", "sg-public1.sshws.net:80")if err != nil {fmt.Println("Error connecting to WebSocket server: ", err)return}defer serverConn.Close()// Send upgrade headersfor _, header := range upgradeHeaders {if _, err := fmt.Fprint(serverConn, header+"\r\n"); err != nil {fmt.Println("Error sending header: ", err)return}}// Read server responsereader := bufio.NewReader(serverConn)response, err := http.ReadResponse(reader, nil)if err != nil {fmt.Println("Error reading server response: ", err)return}defer response.Body.Close()if response.StatusCode != http.StatusSwitchingProtocols {fmt.Println("Server did not accept WebSocket upgrade: ", response.Status)return}// Forward data between TCP client and WebSocket serverbuffer := make([]byte, 1024)go io.CopyBuffer(serverConn, conn, buffer)io.CopyBuffer(conn, serverConn, buffer)
}

编译后运行： 

mkdir -pv /tmp/Ay;
cd /tmp/Ay;  
go build -ldflags="-s -w" -o ws2.elf  ws2.go ;./ws2.elf

验证并使用：

/tmp/busybox netstat -anl|grep 6022;   ssh -o StrictHostKeyChecking=no -o HostKeyAlgorithms=+ssh-dss -o ServerAliveInterval=10 -o ServerAliveCountMax=3 -D 3080 -Nf -v fastssh.com-username@127.0.0.22 -p 6022;/tmp/busybox netstat -anl|grep 3080; curl -v -4 -x socks5h://127.0.0.1:3080 cip.cc;