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secret_decrypt.go
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/
secret_decrypt.go
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// Copyright 2016 The hlin 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 cli
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
"log"
"os"
"github.com/spf13/cobra"
"github.com/brancz/hlin/pkg/api/apipb"
"github.com/brancz/hlin/pkg/crypto"
)
func NewCmdSecretDecrypt(in io.Reader, out io.Writer) *cobra.Command {
decryptSecretCmd := &cobra.Command{
Use: "decrypt",
Short: "Decrypt a secret",
Long: `Decrypt a secret.`,
Run: func(cmd *cobra.Command, args []string) {
cfg := MustConfig()
fi, err := os.Stdin.Stat()
if err != nil {
log.Fatal(err)
}
if fi.Mode()&os.ModeNamedPipe == 0 {
log.Fatal("no data to read from stdin")
}
secret := apipb.CreateSecretRequest{}
err = json.NewDecoder(os.Stdin).Decode(&secret)
if err != nil {
log.Fatal(err)
}
keyStore, err := crypto.KeyStoreFromConfig(cfg)
if err != nil {
log.Fatal(err)
}
r, err := crypto.Decrypt(keyStore, secret.CipherText.Content.Bytes, secret.Shares)
if err != nil {
log.Fatal(err)
}
bytes, err := ioutil.ReadAll(r)
if err != nil {
log.Fatal(err)
}
fmt.Printf(string(bytes))
},
}
return decryptSecretCmd
}