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TA贡献2051条经验 获得超10个赞
首先,您应该注意我给出的示例是完全不安全的(不要通过 Internet 公开它!)并且也没有提供诸如信号处理或调整终端大小之类的功能(您可能需要考虑改用 SSH) .
但为了回答您的问题,这里有一个运行 TCP 服务器并将远程客户端连接到在本地 PTY 中运行的 termui 程序的示例(同时使用 https://github.com/gizak/termui和https ://github. com/kr/pty包):
package main
import (
"flag"
"io"
"log"
"net"
"os"
"os/exec"
ui "github.com/gizak/termui"
"github.com/kr/pty"
)
var termuiFlag = flag.Bool("termui", false, "run a termui example")
func main() {
flag.Parse()
var err error
if *termuiFlag {
err = runTermui()
} else {
err = runServer()
}
if err != nil {
log.Fatal(err)
}
}
// runTermui runs the termui "Hello World" example.
func runTermui() error {
if err := ui.Init(); err != nil {
return err
}
defer ui.Close()
p := ui.NewParagraph("Hello World!")
p.Width = 25
p.Height = 5
ui.Render(p)
for e := range ui.PollEvents() {
if e.Type == ui.KeyboardEvent {
break
}
}
return nil
}
// runServer listens for TCP connections on a random port and connects
// remote clients to a local PTY running the termui example.
func runServer() error {
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
return err
}
defer ln.Close()
log.Printf("Listening for requests on %v", ln.Addr())
for {
conn, err := ln.Accept()
if err != nil {
return err
}
log.Printf("Connecting remote client %v to termui", conn.RemoteAddr())
go connectTermui(conn)
}
}
// connectTermui connects a client connection to a termui process running in a
// PTY.
func connectTermui(conn net.Conn) {
defer func() {
log.Printf("Closing remote client %v", conn.RemoteAddr())
conn.Close()
}()
t, err := pty.StartWithSize(
exec.Command(os.Args[0], "--termui"),
&pty.Winsize{Cols: 80, Rows: 24},
)
if err != nil {
log.Printf("Error starting termui: %v", err)
return
}
defer t.Close()
go io.Copy(t, conn)
io.Copy(conn, t)
}
示例用法是在一个窗口中运行此程序并nc在另一个窗口中使用连接到它:
$ go run server.go
2019/01/18 01:39:37 Listening for requests on 127.0.0.1:56192
$ nc 127.0.0.1 56192
您应该会看到“Hello world”框(按回车键断开连接)。
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