57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
package fusefrontend_reverse
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import (
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"path/filepath"
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"strings"
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)
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func (fs *FS) abs(relPath string, err error) (string, error) {
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if err != nil {
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return "", err
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}
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return filepath.Join(fs.args.Cipherdir, relPath), nil
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}
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const (
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ENCRYPT = iota
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DECRYPT
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)
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func (fs *FS) encryptPath(relPath string) (string, error) {
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return fs.transformPath(relPath, ENCRYPT)
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}
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func (fs *FS) decryptPath(relPath string) (string, error) {
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return fs.transformPath(relPath, DECRYPT)
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}
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func (fs *FS) transformPath(relPath string, direction int) (string, error) {
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if fs.args.PlaintextNames {
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return relPath, nil
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}
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var err error
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var transformedParts []string
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iv := make([]byte, 16)
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parts := strings.Split(relPath, "/")
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for _, part := range parts {
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var transformedPart string
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switch direction {
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case ENCRYPT:
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transformedPart = fs.nameTransform.EncryptName(part, iv)
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case DECRYPT:
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transformedPart, err = fs.nameTransform.DecryptName(part, iv)
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if err != nil {
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return "", err
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}
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default:
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panic("bug: invalid direction value")
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}
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transformedParts = append(transformedParts, transformedPart)
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}
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return filepath.Join(transformedParts...), nil
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}
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func (fs *FS) isFiltered(relPath string) bool {
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return false
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}
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