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mirror of https://github.com/rclone/rclone synced 2024-12-22 13:03:02 +01:00

crypt: added cryptdecode command - #1129

This commit is contained in:
ishuah 2017-09-20 14:40:07 +03:00 committed by Nick Craig-Wood
parent c9e2739500
commit 7195e44dce
3 changed files with 65 additions and 0 deletions

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@ -13,6 +13,7 @@ import (
_ "github.com/ncw/rclone/cmd/copy"
_ "github.com/ncw/rclone/cmd/copyto"
_ "github.com/ncw/rclone/cmd/cryptcheck"
_ "github.com/ncw/rclone/cmd/cryptdecode"
_ "github.com/ncw/rclone/cmd/dbhashsum"
_ "github.com/ncw/rclone/cmd/dedupe"
_ "github.com/ncw/rclone/cmd/delete"

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@ -0,0 +1,59 @@
package cryptdecode
import (
"fmt"
"github.com/ncw/rclone/cmd"
"github.com/ncw/rclone/crypt"
"github.com/ncw/rclone/fs"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
func init() {
cmd.Root.AddCommand(commandDefinition)
}
var commandDefinition = &cobra.Command{
Use: "cryptdecode encryptedremote: encryptedfilename",
Short: `Cryptdecode returns unencrypted file names.`,
Long: `
rclone cryptdecode returns unencrypted file names when provided with
a list of encrypted file names. List limit is 10 items.
use it like this
rclone cryptdecode encryptedremote: encryptedfilename1 encryptedfilename2
`,
Run: func(command *cobra.Command, args []string) {
cmd.CheckArgs(2, 11, command, args)
fsrc := cmd.NewFsSrc(args)
cmd.Run(false, false, command, func() error {
return cryptDecode(fsrc, args[1:])
})
},
}
// cryptDecode returns the unencrypted file name
func cryptDecode(fsrc fs.Fs, args []string) error {
// Check if fsrc is a crypt
fcrypt, ok := fsrc.(*crypt.Fs)
if !ok {
return errors.Errorf("%s:%s is not a crypt remote", fsrc.Name(), fsrc.Root())
}
output := ""
for _, encryptedFileName := range args {
fileName, err := fcrypt.DecryptFileName(encryptedFileName)
if err != nil {
output += fmt.Sprintln(encryptedFileName, "\t", "Failed to decrypt")
} else {
output += fmt.Sprintln(encryptedFileName, "\t", fileName)
}
}
fmt.Printf(output)
return nil
}

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@ -403,6 +403,11 @@ func (f *Fs) UnWrap() fs.Fs {
return f.Fs
}
// DecryptFileName returns a decrypted file name
func (f *Fs) DecryptFileName(encryptedFileName string) (string, error) {
return f.cipher.DecryptFileName(encryptedFileName)
}
// ComputeHash takes the nonce from o, and encrypts the contents of
// src with it, and calcuates the hash given by HashType on the fly
//