package main

import (
	"fmt"
	"github.com/gliderlabs/ssh"
	"golang.org/x/crypto/ssh/terminal"
	"io"
	"log"
	"os/exec"
	"strings"
)


func lexer(input string) []string{
	return strings.Split(strings.Trim(input," ")," ")
}

func main() {
	addr := "lab.posevin.com"
	port := 2318
	server := ssh.Server{
		Addr: fmt.Sprintf("%s:%d",addr,  port),
		Handler: func(session ssh.Session) {
			io.WriteString(session, fmt.Sprintf("Hello %s\n", session.User()))
			var (
				line    string
				current []string
				term= terminal.NewTerminal(session, "")

			)
			line, _ = term.ReadLine()
			current = lexer(line)
			cmd := exec.Command(current[0], current[1:]...)
			cmd.Dir="lab2"
			cmd.Stdout = session
			_ = cmd.Run()
			for{
				line, _ = term.ReadLine()
				current = lexer(line)
			}
			session.Close();
		},
		HostSigners:                nil,
		Version:                    "",
		KeyboardInteractiveHandler: nil,
		PasswordHandler: func(ctx ssh.Context, password string) bool {
			return ctx.User() == "iu9_32_19" && password == "123qwe"
		},
		PublicKeyHandler:              nil,
		PtyCallback: func(ctx ssh.Context, pty ssh.Pty) bool {
			return false
		},
		ConnCallback:                  nil,
		LocalPortForwardingCallback:   nil,
		ReversePortForwardingCallback: nil,
		ServerConfigCallback:          nil,
		SessionRequestCallback:        nil,
		IdleTimeout:                   0,
		MaxTimeout:                    0,
		ChannelHandlers:               nil,
		RequestHandlers:               nil,
	}
	log.Println("Starting server at port:",port)
	_=server.ListenAndServe()
}