next-terminal/server/common/term/next_terminal.go
2022-10-23 20:05:13 +08:00

122 lines
2.8 KiB
Go

package term
import (
"bufio"
"errors"
"io"
"github.com/pkg/sftp"
"golang.org/x/crypto/ssh"
)
type NextTerminal struct {
SshClient *ssh.Client
SshSession *ssh.Session
StdinPipe io.WriteCloser
SftpClient *sftp.Client
Recorder *Recorder
StdoutReader *bufio.Reader
}
func NewNextTerminal(ip string, port int, username, password, privateKey, passphrase string, rows, cols int, recording, term string, pipe bool) (*NextTerminal, error) {
sshClient, err := NewSshClient(ip, port, username, password, privateKey, passphrase)
if err != nil {
return nil, err
}
return newNT(sshClient, pipe, recording, term, rows, cols)
}
func NewNextTerminalUseSocks(ip string, port int, username, password, privateKey, passphrase string, rows, cols int, recording, term string, pipe bool, socksProxyHost, socksProxyPort, socksProxyUsername, socksProxyPassword string) (*NextTerminal, error) {
sshClient, err := NewSshClientUseSocks(ip, port, username, password, privateKey, passphrase, socksProxyHost, socksProxyPort, socksProxyUsername, socksProxyPassword)
if err != nil {
return nil, err
}
return newNT(sshClient, pipe, recording, term, rows, cols)
}
func newNT(sshClient *ssh.Client, pipe bool, recording string, term string, rows int, cols int) (*NextTerminal, error) {
sshSession, err := sshClient.NewSession()
if err != nil {
return nil, err
}
var stdoutReader *bufio.Reader
if pipe {
stdoutPipe, err := sshSession.StdoutPipe()
if err != nil {
return nil, err
}
stdoutReader = bufio.NewReader(stdoutPipe)
}
var stdinPipe io.WriteCloser
if pipe {
stdinPipe, err = sshSession.StdinPipe()
if err != nil {
return nil, err
}
}
var recorder *Recorder
if recording != "" {
recorder, err = NewRecorder(recording, term, rows, cols)
if err != nil {
return nil, err
}
}
terminal := NextTerminal{
SshClient: sshClient,
SshSession: sshSession,
Recorder: recorder,
StdinPipe: stdinPipe,
StdoutReader: stdoutReader,
}
return &terminal, nil
}
func (ret *NextTerminal) Write(p []byte) (int, error) {
if ret.StdinPipe == nil {
return 0, errors.New("pipe is not open")
}
return ret.StdinPipe.Write(p)
}
func (ret *NextTerminal) Close() {
if ret.SftpClient != nil {
_ = ret.SftpClient.Close()
}
if ret.SshSession != nil {
_ = ret.SshSession.Close()
}
if ret.SshClient != nil {
_ = ret.SshClient.Close()
}
if ret.Recorder != nil {
ret.Recorder.Close()
}
}
func (ret *NextTerminal) WindowChange(h int, w int) error {
return ret.SshSession.WindowChange(h, w)
}
func (ret *NextTerminal) RequestPty(term string, h, w int) error {
modes := ssh.TerminalModes{
ssh.ECHO: 1,
ssh.TTY_OP_ISPEED: 14400,
ssh.TTY_OP_OSPEED: 14400,
}
return ret.SshSession.RequestPty(term, h, w, modes)
}
func (ret *NextTerminal) Shell() error {
return ret.SshSession.Shell()
}