safing-jess/cmd/cmd-sign.go
2022-09-28 20:03:11 +02:00

62 lines
1.6 KiB
Go

package main
import (
"errors"
"fmt"
"strings"
"github.com/spf13/cobra"
"github.com/safing/jess/filesig"
)
func init() {
rootCmd.AddCommand(signCmd)
signCmd.Flags().StringVarP(&closeFlagOutput, "output", "o", "", "specify output file (`-` for stdout")
signCmd.Flags().StringToStringVarP(&metaDataFlag, "metadata", "m", nil, "specify file metadata to sign")
}
var (
metaDataFlag map[string]string
signCmdHelp = "usage: jess sign <file> with <envelope name>"
signCmd = &cobra.Command{
Use: "sign <file> with <envelope name>",
Short: "sign file",
Long: "sign file with the given envelope. Use `-` to use stdin",
DisableFlagsInUseLine: true,
PreRunE: requireTrustStore,
RunE: func(cmd *cobra.Command, args []string) error {
registerPasswordCallbacks()
// check args
if len(args) != 3 || args[1] != "with" {
return errors.New(signCmdHelp)
}
// get envelope
envelope, err := trustStore.GetEnvelope(args[2])
if err != nil {
return err
}
// check filenames
filename := args[0]
outputFilename := closeFlagOutput
if outputFilename == "" {
if strings.HasSuffix(filename, filesig.Extension) {
return errors.New("cannot automatically derive output filename, please specify with --output")
}
outputFilename = filename + filesig.Extension
}
fd, err := filesig.SignFile(filename, outputFilename, metaDataFlag, envelope, trustStore)
if err != nil {
return err
}
fmt.Print(formatSignatures(filename, outputFilename, []*filesig.FileData{fd}))
return nil
},
}
)