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1Panel/backend/utils/terminal/local_cmd.go

94 lines
1.6 KiB

package terminal
import (
"os"
"os/exec"
"syscall"
"time"
"unsafe"
"github.com/1Panel-dev/1Panel/backend/global"
"github.com/creack/pty"
"github.com/pkg/errors"
)
const (
DefaultCloseSignal = syscall.SIGINT
DefaultCloseTimeout = 10 * time.Second
)
type LocalCommand struct {
closeSignal syscall.Signal
closeTimeout time.Duration
cmd *exec.Cmd
pty *os.File
}
func NewCommand(commands []string) (*LocalCommand, error) {
cmd := exec.Command("docker", commands...)
pty, err := pty.Start(cmd)
if err != nil {
return nil, errors.Wrapf(err, "failed to start command")
}
lcmd := &LocalCommand{
closeSignal: DefaultCloseSignal,
closeTimeout: DefaultCloseTimeout,
cmd: cmd,
pty: pty,
}
return lcmd, nil
}
func (lcmd *LocalCommand) Read(p []byte) (n int, err error) {
return lcmd.pty.Read(p)
}
func (lcmd *LocalCommand) Write(p []byte) (n int, err error) {
return lcmd.pty.Write(p)
}
func (lcmd *LocalCommand) Close() error {
if lcmd.cmd != nil && lcmd.cmd.Process != nil {
_ = lcmd.cmd.Process.Kill()
}
_ = lcmd.pty.Close()
return nil
}
func (lcmd *LocalCommand) ResizeTerminal(width int, height int) error {
window := struct {
row uint16
col uint16
x uint16
y uint16
}{
uint16(height),
uint16(width),
0,
0,
}
_, _, errno := syscall.Syscall(
syscall.SYS_IOCTL,
lcmd.pty.Fd(),
syscall.TIOCSWINSZ,
uintptr(unsafe.Pointer(&window)),
)
if errno != 0 {
return errno
} else {
return nil
}
}
func (lcmd *LocalCommand) Wait(quitChan chan bool) {
if err := lcmd.cmd.Wait(); err != nil {
global.LOG.Errorf("ssh session wait failed, err: %v", err)
setQuit(quitChan)
}
}