GODT-1779: Remove go-imap

internal/vault/helper.go

@@ -0,0 +1,41 @@
+package vault
+
+import (
+	"encoding/json"
+	"errors"
+	"io/fs"
+	"os"
+	"path/filepath"
+)
+
+type Keychain struct {
+	Helper string
+}
+
+func GetHelper(vaultDir string) (string, error) {
+	var keychain Keychain
+
+	if _, err := os.Stat(filepath.Join(vaultDir, "keychain.json")); errors.Is(err, fs.ErrNotExist) {
+		return "", nil
+	}
+
+	b, err := os.ReadFile(filepath.Join(vaultDir, "keychain.json"))
+	if err != nil {
+		return "", err
+	}
+
+	if err := json.Unmarshal(b, &keychain); err != nil {
+		return "", err
+	}
+
+	return keychain.Helper, nil
+}
+
+func SetHelper(vaultDir, helper string) error {
+	b, err := json.MarshalIndent(Keychain{Helper: helper}, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	return os.WriteFile(filepath.Join(vaultDir, "keychain.json"), b, 0o600)
+}