frostfs-node/cmd/frostfs-cli/modules/util/keyer.go

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package util
import (
"crypto/rand"
"errors"
"fmt"
"os"
commonCmd "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/internal/common"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/keyer"
"github.com/spf13/cobra"
)
var keyerCmd = &cobra.Command{
Use: "keyer",
Short: "Generate or print information about keys",
Run: processKeyer,
}
var errKeyerSingleArgument = errors.New("pass only one argument at a time")
func initKeyerCmd() {
keyerCmd.Flags().BoolP("generate", "g", false, "Generate new private key")
keyerCmd.Flags().Bool("hex", false, "Print all values in hex encoding")
keyerCmd.Flags().BoolP("uncompressed", "u", false, "Use uncompressed public key format")
keyerCmd.Flags().BoolP("multisig", "m", false, "Calculate multisig address from public keys")
}
func processKeyer(cmd *cobra.Command, args []string) {
var (
err error
result = new(keyer.Dashboard)
generate, _ = cmd.Flags().GetBool("generate")
useHex, _ = cmd.Flags().GetBool("hex")
uncompressed, _ = cmd.Flags().GetBool("uncompressed")
multisig, _ = cmd.Flags().GetBool("multisig")
)
if multisig {
err = result.ParseMultiSig(args)
} else {
if len(args) > 1 {
commonCmd.ExitOnErr(cmd, "", errKeyerSingleArgument)
}
var argument string
if len(args) > 0 {
argument = args[0]
}
switch {
case generate:
err = keyerGenerate(argument, result)
case fileExists(argument):
err = keyerParseFile(argument, result)
default:
err = result.ParseString(argument)
}
}
commonCmd.ExitOnErr(cmd, "", err)
result.PrettyPrint(uncompressed, useHex)
}
func keyerGenerate(filename string, d *keyer.Dashboard) error {
key := make([]byte, keyer.NeoPrivateKeySize)
_, err := rand.Read(key)
if err != nil {
return fmt.Errorf("can't get random source: %w", err)
}
err = d.ParseBinary(key)
if err != nil {
return fmt.Errorf("can't parse key: %w", err)
}
if filename != "" {
return os.WriteFile(filename, key, 0600)
}
return nil
}
func fileExists(filename string) bool {
info, err := os.Stat(filename)
return !os.IsNotExist(err) && !info.IsDir()
}
func keyerParseFile(filename string, d *keyer.Dashboard) error {
data, err := os.ReadFile(filename)
if err != nil {
return fmt.Errorf("can't open %v file: %w", filename, err)
}
return d.ParseBinary(data)
}