mirror of https://github.com/mitchell/selfpass.git
51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
package commands
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import (
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"fmt"
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"io/ioutil"
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"os"
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"github.com/spf13/cobra"
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"github.com/mitchell/selfpass/sp/crypto"
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"github.com/mitchell/selfpass/sp/types"
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)
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func makeDecrypt(repo types.ConfigRepo) *cobra.Command {
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decryptCmd := &cobra.Command{
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Use: "decrypt [file]",
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Short: "Decrypt a file using your masterpass and secret key",
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Long: `Decrypt a file using your masterpass and secret key, and replace the old file with
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the new file.`,
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Args: cobra.ExactArgs(1),
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Run: func(cmd *cobra.Command, args []string) {
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masterpass, cfg, err := repo.OpenConfig()
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check(err)
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file := args[0]
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fileout := file
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if file[len(file)-4:] == ".enc" {
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fileout = file[:len(file)-4]
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}
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contents, err := ioutil.ReadFile(file)
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check(err)
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key := cfg.GetString(types.KeyPrivateKey)
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passkey := crypto.GeneratePBKDF2Key([]byte(masterpass), []byte(key))
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contents, err = crypto.GCMDecrypt(passkey, contents)
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check(err)
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check(ioutil.WriteFile(fileout, contents, 0600))
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check(os.Remove(file))
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fmt.Println("Decrypted file: ", fileout)
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},
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}
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return decryptCmd
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}
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