rclone/cmd/cryptdecode/cryptdecode.go

99 lines
2.5 KiB
Go

// Package cryptdecode provides the cryptdecode command.
package cryptdecode
import (
"errors"
"fmt"
"github.com/rclone/rclone/backend/crypt"
"github.com/rclone/rclone/cmd"
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fs/config/flags"
"github.com/spf13/cobra"
)
// Options set by command line flags
var (
Reverse = false
)
func init() {
cmd.Root.AddCommand(commandDefinition)
cmdFlags := commandDefinition.Flags()
flags.BoolVarP(cmdFlags, &Reverse, "reverse", "", Reverse, "Reverse cryptdecode, encrypts filenames", "")
}
var commandDefinition = &cobra.Command{
Use: "cryptdecode encryptedremote: encryptedfilename",
Short: `Cryptdecode returns unencrypted file names.`,
Long: `Returns unencrypted file names when provided with a list of encrypted file
names. List limit is 10 items.
If you supply the ` + "`--reverse`" + ` flag, it will return encrypted file names.
use it like this
rclone cryptdecode encryptedremote: encryptedfilename1 encryptedfilename2
rclone cryptdecode --reverse encryptedremote: filename1 filename2
Another way to accomplish this is by using the ` + "`rclone backend encode` (or `decode`)" + ` command.
See the documentation on the [crypt](/crypt/) overlay for more info.
`,
Annotations: map[string]string{
"versionIntroduced": "v1.38",
},
Run: func(command *cobra.Command, args []string) {
cmd.CheckArgs(2, 11, command, args)
cmd.Run(false, false, command, func() error {
fsInfo, _, _, config, err := fs.ConfigFs(args[0])
if err != nil {
return err
}
if fsInfo.Name != "crypt" {
return errors.New("the remote needs to be of type \"crypt\"")
}
cipher, err := crypt.NewCipher(config)
if err != nil {
return err
}
if Reverse {
return cryptEncode(cipher, args[1:])
}
return cryptDecode(cipher, args[1:])
})
},
}
// cryptDecode returns the unencrypted file name
func cryptDecode(cipher *crypt.Cipher, args []string) error {
output := ""
for _, encryptedFileName := range args {
fileName, err := cipher.DecryptFileName(encryptedFileName)
if err != nil {
output += fmt.Sprintln(encryptedFileName, "\t", "Failed to decrypt")
} else {
output += fmt.Sprintln(encryptedFileName, "\t", fileName)
}
}
fmt.Print(output)
return nil
}
// cryptEncode returns the encrypted file name
func cryptEncode(cipher *crypt.Cipher, args []string) error {
output := ""
for _, fileName := range args {
encryptedFileName := cipher.EncryptFileName(fileName)
output += fmt.Sprintln(fileName, "\t", encryptedFileName)
}
fmt.Print(output)
return nil
}