62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
package commander
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
"io"
|
|
"os/exec"
|
|
|
|
"gitea.d3m0k1d.ru/d3m0k1d/HellreigN/proto/proto"
|
|
"golang.org/x/sync/errgroup"
|
|
)
|
|
|
|
type CommandExecutor struct{}
|
|
|
|
func (*CommandExecutor) Execute(command *proto.Command) (fc *proto.FinishedCommand, err error) {
|
|
fc = new(proto.FinishedCommand)
|
|
fc.Id = command.Id
|
|
cmd := exec.Command(command.Command[0], command.Command[1:]...)
|
|
var stdin io.WriteCloser
|
|
if command.Stdin != nil {
|
|
stdin, err = cmd.StdinPipe()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
stdout, err1 := cmd.StdoutPipe()
|
|
stderr, err2 := cmd.StderrPipe()
|
|
if err := errors.Join(err1, err2); err != nil {
|
|
return nil, err
|
|
}
|
|
if err := cmd.Start(); err != nil {
|
|
return nil, err
|
|
}
|
|
if command.Stdin != nil {
|
|
io.WriteString(stdin, *command.Stdin)
|
|
if err := stdin.Close(); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
eg := new(errgroup.Group)
|
|
stdoutbuf := new(bytes.Buffer)
|
|
stderrbuf := new(bytes.Buffer)
|
|
eg.Go(func() error {
|
|
_, err := io.Copy(stdoutbuf, stdout)
|
|
return err
|
|
})
|
|
eg.Go(func() error {
|
|
_, err := io.Copy(stderrbuf, stderr)
|
|
return err
|
|
})
|
|
if err := cmd.Wait(); err != nil {
|
|
return nil, err
|
|
}
|
|
if err := eg.Wait(); err != nil {
|
|
return nil, err
|
|
}
|
|
fc.Status = int32(cmd.ProcessState.ExitCode())
|
|
fc.Stdout = stdoutbuf.String()
|
|
fc.Stderr = stderrbuf.String()
|
|
return
|
|
}
|