selfpass/sp/commands/encrypt.go

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package commands
import (
"fmt"
"io/ioutil"
"os"
"github.com/spf13/cobra"
"github.com/mitchell/selfpass/sp/crypto"
"github.com/mitchell/selfpass/sp/types"
)
func makeEncrypt(repo types.ConfigRepo) *cobra.Command {
encryptCmd := &cobra.Command{
Use: "encrypt [file]",
Short: "Encrypt a file using your masterpass and secret key",
Long: `Encrypt a file using your masterpass and secret key, and replace the old file with the
new file.`,
Args: cobra.ExactArgs(1),
Run: func(cmd *cobra.Command, args []string) {
masterpass, cfg, err := repo.OpenConfig()
check(err)
file := args[0]
fileEnc := file + ".enc"
contents, err := ioutil.ReadFile(file)
check(err)
key := cfg.GetString(types.KeyPrivateKey)
passkey := crypto.GeneratePBKDF2Key([]byte(masterpass), []byte(key))
contents, err = crypto.GCMEncrypt(passkey, contents)
check(err)
check(ioutil.WriteFile(fileEnc, contents, 0600))
check(os.Remove(file))
fmt.Println("Encrypted file: ", fileEnc)
},
}
return encryptCmd
}