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package fusefrontend_reverse
import (
"encoding/base64"
"path/filepath"
"strings"
"syscall"
)
func (rfs *reverseFS) abs(relPath string, err error) (string, error) {
if err != nil {
return "", err
}
return filepath.Join(rfs.args.Cipherdir, relPath), nil
}
func (rfs *reverseFS) decryptPath(relPath string) (string, error) {
if rfs.args.PlaintextNames || relPath == "" {
return relPath, nil
}
var err error
var transformedParts []string
parts := strings.Split(relPath, "/")
for i, part := range parts {
var transformedPart string
dirIV := deriveDirIV(filepath.Join(parts[:i]...))
transformedPart, err = rfs.nameTransform.DecryptName(part, dirIV)
if err != nil {
// We get lots of decrypt requests for names like ".Trash" that
// are invalid base64. Convert them to ENOENT so the correct
// error gets returned to the user.
if _, ok := err.(base64.CorruptInputError); ok {
return "", syscall.ENOENT
}
return "", err
}
transformedParts = append(transformedParts, transformedPart)
}
return filepath.Join(transformedParts...), nil
}
func (rfs *reverseFS) isFiltered(relPath string) bool {
return false
}
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