open-vault/command/unwrap.go

99 lines
2.2 KiB
Go

package command
import (
"flag"
"fmt"
"strings"
"github.com/hashicorp/go-uuid"
"github.com/hashicorp/vault/api"
"github.com/hashicorp/vault/meta"
)
// UnwrapCommand is a Command that behaves like ReadCommand but specifically
// for unwrapping cubbyhole-wrapped secrets
type UnwrapCommand struct {
meta.Meta
}
func (c *UnwrapCommand) Run(args []string) int {
var format string
var field string
var err error
var secret *api.Secret
var flags *flag.FlagSet
flags = c.Meta.FlagSet("unwrap", meta.FlagSetDefault)
flags.StringVar(&format, "format", "table", "")
flags.StringVar(&field, "field", "", "")
flags.Usage = func() { c.Ui.Error(c.Help()) }
if err := flags.Parse(args); err != nil {
return 1
}
args = flags.Args()
if len(args) != 1 || len(args[0]) == 0 {
c.Ui.Error("Unwrap expects one argument: the ID of the wrapping token")
flags.Usage()
return 1
}
tokenID := args[0]
_, err = uuid.ParseUUID(tokenID)
if err != nil {
c.Ui.Error(fmt.Sprintf(
"Given token could not be parsed as a UUID: %s", err))
return 1
}
client, err := c.Client()
if err != nil {
c.Ui.Error(fmt.Sprintf(
"Error initializing client: %s", err))
return 2
}
secret, err = client.Logical().Unwrap(tokenID)
if err != nil {
c.Ui.Error(err.Error())
return 1
}
if secret == nil {
c.Ui.Error("Secret returned was nil")
return 1
}
// Handle single field output
if field != "" {
return PrintRawField(c.Ui, secret, field)
}
return OutputSecret(c.Ui, format, secret)
}
func (c *UnwrapCommand) Synopsis() string {
return "Unwrap a wrapped secret"
}
func (c *UnwrapCommand) Help() string {
helpText := `
Usage: vault unwrap [options] <wrapping token ID>
Unwrap a wrapped secret.
Unwraps the data wrapped by the given token ID. The returned result is the
same as a 'read' operation on a non-wrapped secret.
General Options:
` + meta.GeneralOptionsUsage() + `
Read Options:
-format=table The format for output. By default it is a whitespace-
delimited table. This can also be json or yaml.
-field=field If included, the raw value of the specified field
will be output raw to stdout.
`
return strings.TrimSpace(helpText)
}