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package fusefrontend_reverse
import (
"path/filepath"
"strings"
"syscall"
"github.com/rfjakob/gocryptfs/internal/ctlsock"
"github.com/rfjakob/gocryptfs/internal/pathiv"
)
var _ ctlsock.Interface = &ReverseFS{} // Verify that interface is implemented.
// EncryptPath implements ctlsock.Backend.
// This is actually not used inside reverse mode, but we implement it because
// third-party tools want to encrypt paths through the control socket.
func (rfs *ReverseFS) EncryptPath(plainPath string) (string, error) {
if rfs.args.PlaintextNames || plainPath == "" {
return plainPath, nil
}
cipherPath := ""
parts := strings.Split(plainPath, "/")
for _, part := range parts {
dirIV := pathiv.Derive(cipherPath, pathiv.PurposeDirIV)
encryptedPart := rfs.nameTransform.EncryptName(part, dirIV)
if rfs.args.LongNames && len(encryptedPart) > syscall.NAME_MAX {
encryptedPart = rfs.nameTransform.HashLongName(encryptedPart)
}
cipherPath = filepath.Join(cipherPath, encryptedPart)
}
return cipherPath, nil
}
// DecryptPath implements ctlsock.Backend
func (rfs *ReverseFS) DecryptPath(cipherPath string) (string, error) {
p, err := rfs.decryptPath(cipherPath)
return p, err
}
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