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|
package keyline
import (
"errors"
"fmt"
"path"
"regexp"
"strings"
"gitlab.com/gitlab-org/gitlab-shell/go/internal/executable"
)
var (
keyRegex = regexp.MustCompile(`\A[a-z0-9-]+\z`)
)
const (
PublicKeyPrefix = "key"
SshOptions = "no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty"
)
type KeyLine struct {
Id string // This can be either an ID of a Key or username
Value string // This can be either a public key or a principal name
Prefix string
RootDir string
}
func NewPublicKeyLine(id string, publicKey string, rootDir string) (*KeyLine, error) {
if err := validate(id, publicKey); err != nil {
return nil, err
}
return &KeyLine{Id: id, Value: publicKey, Prefix: PublicKeyPrefix, RootDir: rootDir}, nil
}
func (k *KeyLine) ToString() string {
command := fmt.Sprintf("%s %s-%s", path.Join(k.RootDir, executable.BinDir, executable.GitlabShell), k.Prefix, k.Id)
return fmt.Sprintf(`command="%s",%s %s`, command, SshOptions, k.Value)
}
func validate(id string, value string) error {
if !keyRegex.MatchString(id) {
return errors.New(fmt.Sprintf("Invalid key_id: %s", id))
}
if strings.Contains(value, "\n") {
return errors.New(fmt.Sprintf("Invalid value: %s", value))
}
return nil
}
|
