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p2p_identity_extract.go
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p2p_identity_extract.go
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package toolset
import (
"fmt"
"os"
"path/filepath"
flag "github.com/spf13/pflag"
"github.com/iotaledger/hive.go/app/configuration"
hivep2p "github.com/iotaledger/hive.go/crypto/p2p"
"github.com/iotaledger/hive.go/crypto/pem"
"github.com/iotaledger/hornet/v2/pkg/p2p"
)
func extractP2PIdentity(args []string) error {
fs := configuration.NewUnsortedFlagSet("", flag.ContinueOnError)
databasePathFlag := fs.String(FlagToolDatabasePath, DefaultValueP2PDatabasePath, "the path to the p2p database folder")
outputJSONFlag := fs.Bool(FlagToolOutputJSON, false, FlagToolDescriptionOutputJSON)
fs.Usage = func() {
_, _ = fmt.Fprintf(os.Stderr, "Usage of %s:\n", ToolP2PExtractIdentity)
fs.PrintDefaults()
println(fmt.Sprintf("\nexample: %s --%s %s",
ToolP2PExtractIdentity,
FlagToolDatabasePath,
DefaultValueP2PDatabasePath))
}
if err := parseFlagSet(fs, args); err != nil {
return err
}
if len(*databasePathFlag) == 0 {
return fmt.Errorf("'%s' not specified", FlagToolDatabasePath)
}
databasePath := *databasePathFlag
privKeyFilePath := filepath.Join(databasePath, p2p.PrivKeyFileName)
_, err := os.Stat(privKeyFilePath)
switch {
case os.IsNotExist(err):
// private key does not exist
return fmt.Errorf("private key file (%s) does not exist", privKeyFilePath)
case err == nil || os.IsExist(err):
// private key file exists
default:
return fmt.Errorf("unable to check private key file (%s): %w", privKeyFilePath, err)
}
privKey, err := pem.ReadEd25519PrivateKeyFromPEMFile(privKeyFilePath)
if err != nil {
return fmt.Errorf("reading private key file for peer identity failed: %w", err)
}
libp2pPrivKey, err := hivep2p.Ed25519PrivateKeyToLibp2pPrivateKey(privKey)
if err != nil {
return err
}
return printP2PIdentity(libp2pPrivKey, libp2pPrivKey.GetPublic(), *outputJSONFlag)
}