Example #1
0
func (pkg *smPackage) writeTargetState(client connection.Client) error {
	sess, err := client.NewSession()
	if err != nil {
		return err
	}
	defer sess.Close()

	stdin, err := sess.StdinPipe()
	if err != nil {
		return errors.Wrap(err, "failed to receive stdin pipe")
	}

	tstamp := time.Now().UTC().Format("20060102T150405")
	filename := fmt.Sprintf("/var/lib/smutje/%s.%s.log", pkg.ID, tstamp)
	cmd := fmt.Sprintf(`bash -c "cat - > %[1]s && ln -sf %[1]s /var/lib/smutje/%[2]s.log"`, filename, pkg.ID)
	if err := sess.Start(cmd); err != nil {
		return err
	}

	if _, err := io.WriteString(stdin, strings.Join(pkg.state, "\n")+"\n"); err != nil {
		return errors.Wrap(err, "failed to send script to target")
	}
	stdin.Close()
	return sess.Wait()
}
Example #2
0
func (s *bashScript) Exec(l logger.Logger, client connection.Client) error {
	sess, err := client.NewLoggedSession(l)
	if err != nil {
		return err
	}
	defer sess.Close()

	stdin, err := sess.StdinPipe()
	if err != nil {
		return errors.Wrap(err, "failed to receive stdin pipe")
	}
	defer stdin.Close()

	fname := fmt.Sprintf("/var/lib/smutje/%s.sh", s.hash)
	cmd := fmt.Sprintf(`bash -c "cat - > %[1]s && bash -l %[1]s"`, fname)
	if err := sess.Start(cmd); err != nil {
		return err
	}

	switch n, err := io.WriteString(stdin, s.Script); {
	case err != nil:
		return errors.Wrap(err, "failed to send script to target")
	case n != len(s.Script):
		return errors.Errorf("expected to send %d bytes, sent %d", len(s.Script), n)
	default:
		stdin.Close()
		return sess.Wait()
	}
}
Example #3
0
func runCommand(client connection.Client, cmd string) error {
	sess, err := client.NewSession()
	if err != nil {
		return err
	}
	defer sess.Close()

	if err := sess.Start(cmd); err != nil {
		return err
	}
	return sess.Wait()
}
Example #4
0
func (pkg *smPackage) readPackageState(client connection.Client) ([]string, error) {
	sess, err := client.NewSession()
	if err != nil {
		return nil, err
	}
	defer sess.Close()

	stdout, err := sess.StdoutPipe()
	if err != nil {
		return nil, err
	}

	fname := fmt.Sprintf("/var/lib/smutje/%s.log", pkg.ID)
	cmd := fmt.Sprintf(`bash -c "if [[ -f %[1]q ]]; then cat %[1]s; else mkdir -p /var/lib/smutje; fi"`, fname)
	if err := sess.Start(cmd); err != nil {
		return nil, err
	}

	buf := bytes.NewBuffer(nil)
	if _, err := io.Copy(buf, stdout); err != nil {
		return nil, errors.Wrap(err, "failed to copy output of command")
	}

	if err := sess.Wait(); err != nil {
		return nil, err
	}

	state := []string{}
	sc := bufio.NewScanner(buf)
	for sc.Scan() {
		l := sc.Text()
		switch l[0] {
		case '+', '.':
			state = append(state, l)
		case '-':
			//ignore
		default:
			return nil, errors.Errorf("invalid token read: %s", l)
		}
	}
	return state, errors.Wrap(sc.Err(), "failed to scan output")
}
Example #5
0
func (a *execJenkinsArtifactCmd) Exec(l logger.Logger, client connection.Client) error {
	sess, err := client.NewLoggedSession(l)
	if err != nil {
		return err
	}
	defer sess.Close()

	l.Printf("downloading file %q from %q", a.Target, a.url)
	setFilePerms := ""
	// TODO is possible to set only one of the both?
	if a.Owner != "" && a.Umask != "" {
		setFilePerms = " && chown " + a.Owner + " %[1]s && chmod " + a.Umask + " %[1]s"
	}

	cmd := fmt.Sprintf(`bash -c "{ dir=$(dirname %[1]s); test -d \${dir} || mkdir -p \${dir}; } && curl -sSL %[2]s -o %[1]s`+setFilePerms+`"`, a.Target, a.url)
	if err := sess.Start(cmd); err != nil {
		return err
	}

	return sess.Wait()
}
Example #6
0
func (a *execWriteFileCmd) Exec(l logger.Logger, clients connection.Client) error {
	r, err := a.read()
	if err != nil {
		return err
	}
	defer r.Close()

	sess, err := clients.NewLoggedSession(l)
	if err != nil {
		return err
	}
	defer sess.Close()

	stdin, err := sess.StdinPipe()
	if err != nil {
		return errors.Wrap(err, "failed to receive stdin pipe")
	}

	l.Printf("writing file %q", a.Target)
	setFilePerms := ""
	// TODO is possible to set only one of the both?
	if a.Owner != "" && a.Umask != "" {
		setFilePerms = " && chown " + a.Owner + " %[1]s && chmod " + a.Umask + " %[1]s"
	}

	cmd := fmt.Sprintf(`bash -c "{ dir=$(dirname %[1]s); test -d \${dir} || mkdir -p \${dir}; } && cat - > %[1]s`+setFilePerms+`"`, a.Target)
	if err := sess.Start(cmd); err != nil {
		return err
	}

	if _, err := io.Copy(stdin, r); err != nil {
		return errors.Wrap(err, "failed to send script to target")
	}
	stdin.Close()

	// TODO validate all bytes written
	// TODO use compression on the wire

	return sess.Wait()
}