open-vault/command/unwrap.go
Vishal Nayak b93bd39b97
Support unwrapping tokens that does not contain data (#8714)
* Support unwrapping tokens that does not contain data

* s/token/secret
2020-04-09 14:09:23 -04:00

109 lines
2.5 KiB
Go

package command
import (
"fmt"
"strings"
"github.com/mitchellh/cli"
"github.com/posener/complete"
)
var _ cli.Command = (*UnwrapCommand)(nil)
var _ cli.CommandAutocomplete = (*UnwrapCommand)(nil)
// UnwrapCommand is a Command that behaves like ReadCommand but specifically for
// unwrapping cubbyhole-wrapped secrets
type UnwrapCommand struct {
*BaseCommand
}
func (c *UnwrapCommand) Synopsis() string {
return "Unwrap a wrapped secret"
}
func (c *UnwrapCommand) Help() string {
helpText := `
Usage: vault unwrap [options] [TOKEN]
Unwraps a wrapped secret from Vault by the given token. The result is the
same as the "vault read" operation on the non-wrapped secret. If no token
is given, the data in the currently authenticated token is unwrapped.
Unwrap the data in the cubbyhole secrets engine for a token:
$ vault unwrap 3de9ece1-b347-e143-29b0-dc2dc31caafd
Unwrap the data in the active token:
$ vault login 848f9ccf-7176-098c-5e2b-75a0689d41cd
$ vault unwrap # unwraps 848f9ccf...
For a full list of examples and paths, please see the online documentation.
` + c.Flags().Help()
return strings.TrimSpace(helpText)
}
func (c *UnwrapCommand) Flags() *FlagSets {
return c.flagSet(FlagSetHTTP | FlagSetOutputField | FlagSetOutputFormat)
}
func (c *UnwrapCommand) AutocompleteArgs() complete.Predictor {
return c.PredictVaultFiles()
}
func (c *UnwrapCommand) AutocompleteFlags() complete.Flags {
return c.Flags().Completions()
}
func (c *UnwrapCommand) Run(args []string) int {
f := c.Flags()
if err := f.Parse(args); err != nil {
c.UI.Error(err.Error())
return 1
}
args = f.Args()
token := ""
switch len(args) {
case 0:
// Leave token as "", that will use the local token
case 1:
token = strings.TrimSpace(args[0])
default:
c.UI.Error(fmt.Sprintf("Too many arguments (expected 0-1, got %d)", len(args)))
return 1
}
client, err := c.Client()
if err != nil {
c.UI.Error(err.Error())
return 2
}
secret, err := client.Logical().Unwrap(token)
if err != nil {
c.UI.Error(fmt.Sprintf("Error unwrapping: %s", err))
return 2
}
if secret == nil {
if Format(c.UI) == "table" {
c.UI.Info("Successfully unwrapped. There was no data in the wrapped secret.")
}
return 0
}
// Handle single field output
if c.flagField != "" {
return PrintRawField(c.UI, secret, c.flagField)
}
// Check if the original was a list response and format as a list
if _, ok := extractListData(secret); ok {
return OutputList(c.UI, secret)
}
return OutputSecret(c.UI, secret)
}