forked from sigstore/cosign
/
import_key_pair.go
93 lines (83 loc) · 2.31 KB
/
import_key_pair.go
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//
// Copyright 2021 The Sigstore Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package importkeypair
import (
"context"
"fmt"
"io"
"os"
icos "github.com/sigstore/cosign/internal/pkg/cosign"
"github.com/sigstore/cosign/pkg/cosign"
)
var (
// Read is for fuzzing
Read = readPasswordFn
)
// nolint
func ImportKeyPairCmd(ctx context.Context, keyVal string, args []string) error {
keys, err := cosign.ImportKeyPair(keyVal, GetPass)
if err != nil {
return err
}
fileExists, err := icos.FileExists("import-cosign.key")
if err != nil {
return fmt.Errorf("failed checking if import-cosign.key exists: %w", err)
}
if fileExists {
var overwrite string
fmt.Fprint(os.Stderr, "File import-cosign.key already exists. Overwrite (y/n)? ")
fmt.Scanf("%s", &overwrite)
switch overwrite {
case "y", "Y":
case "n", "N":
return nil
default:
fmt.Fprintln(os.Stderr, "Invalid input")
return nil
}
}
// TODO: make sure the perms are locked down first.
if err := os.WriteFile("import-cosign.key", keys.PrivateBytes, 0600); err != nil {
return err
}
fmt.Fprintln(os.Stderr, "Private key written to import-cosign.key")
if err := os.WriteFile("import-cosign.pub", keys.PublicBytes, 0644); err != nil {
return err
} // #nosec G306
fmt.Fprintln(os.Stderr, "Public key written to import-cosign.pub")
return nil
}
func GetPass(confirm bool) ([]byte, error) {
read := Read(confirm)
return read()
}
func readPasswordFn(confirm bool) func() ([]byte, error) {
pw, ok := os.LookupEnv("COSIGN_PASSWORD")
switch {
case ok:
return func() ([]byte, error) {
return []byte(pw), nil
}
case cosign.IsTerminal():
return func() ([]byte, error) {
return cosign.GetPassFromTerm(confirm)
}
// Handle piped in passwords.
default:
return func() ([]byte, error) {
return io.ReadAll(os.Stdin)
}
}
}