[#120] Add utility command to sign bearer token in CLI

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
This commit is contained in:
Alex Vanin 2020-10-22 18:08:28 +03:00 committed by Alex Vanin
parent e7f9da9139
commit c4e9e258fd

View file

@ -0,0 +1,122 @@
package cmd
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"github.com/nspcc-dev/neofs-api-go/pkg"
"github.com/nspcc-dev/neofs-api-go/pkg/token"
v2ACL "github.com/nspcc-dev/neofs-api-go/v2/acl"
"github.com/spf13/cobra"
)
var (
utilCmd = &cobra.Command{
Use: "util",
Short: "Utility operations",
}
signCmd = &cobra.Command{
Use: "sign",
Short: "sign NeoFS structure",
}
signBearerCmd = &cobra.Command{
Use: "bearer-token",
Short: "sign bearer token to use it in requests",
RunE: signBearerToken,
}
)
func init() {
rootCmd.AddCommand(utilCmd)
utilCmd.AddCommand(signCmd)
signCmd.AddCommand(signBearerCmd)
signBearerCmd.Flags().String("from", "", "File with JSON or binary encoded bearer token to sign")
_ = signBearerCmd.MarkFlagFilename("from")
_ = signBearerCmd.MarkFlagRequired("from")
signBearerCmd.Flags().String("to", "", "File to dump signed bearer token")
signBearerCmd.Flags().Bool("json", false, "Dump bearer token in JSON encoding")
}
func signBearerToken(cmd *cobra.Command, _ []string) error {
btok, err := getBearerToken(cmd, "from")
if err != nil {
return err
}
key, err := getKey()
if err != nil {
return err
}
err = completeBearerToken(btok)
if err != nil {
return err
}
err = btok.SignToken(key)
if err != nil {
return err
}
to := cmd.Flag("to").Value.String()
jsonFlag, _ := cmd.Flags().GetBool("json")
var data []byte
if jsonFlag || len(to) == 0 {
data = v2ACL.BearerTokenToJSON(btok.ToV2())
if len(data) == 0 {
return errors.New("can't JSON encode bearer token")
}
} else {
data, err = btok.ToV2().StableMarshal(nil)
if err != nil {
return errors.New("can't binary encode bearer token")
}
}
if len(to) == 0 {
prettyPrintJSON(cmd, data)
return nil
}
err = ioutil.WriteFile(to, data, 0644)
if err != nil {
return fmt.Errorf("can't write signed bearer token to file: %w", err)
}
cmd.Printf("signed bearer token was successfully dumped to %s\n", to)
return nil
}
func completeBearerToken(btok *token.BearerToken) error {
if v2 := btok.ToV2(); v2 != nil {
// set eACL table version, because it usually omitted
table := v2.GetBody().GetEACL()
table.SetVersion(pkg.SDKVersion().ToV2())
// back to SDK token
btok = token.NewBearerTokenFromV2(v2)
} else {
return errors.New("unsupported bearer token version")
}
return nil
}
func prettyPrintJSON(cmd *cobra.Command, data []byte) {
buf := new(bytes.Buffer)
if err := json.Indent(buf, data, "", " "); err != nil {
printVerbose("Can't pretty print json: %w", err)
}
cmd.Println(buf)
}