added keychain support

pkg/utils/keychain.go

@@ -0,0 +1,71 @@
+package utils
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/zalando/go-keyring"
+)
+
+const (
+	serviceName = "TurtleSilicon"
+	accountName = "sudo_password"
+)
+
+// SaveSudoPassword securely stores the sudo password in the system keychain
+func SaveSudoPassword(password string) error {
+	if password == "" {
+		return fmt.Errorf("password cannot be empty")
+	}
+
+	err := keyring.Set(serviceName, accountName, password)
+	if err != nil {
+		return fmt.Errorf("failed to save password to keychain: %v", err)
+	}
+
+	log.Println("Password saved securely to keychain")
+	return nil
+}
+
+// GetSudoPassword retrieves the saved sudo password from the system keychain
+func GetSudoPassword() (string, error) {
+	password, err := keyring.Get(serviceName, accountName)
+	if err != nil {
+		// If the password doesn't exist, return empty string instead of error
+		if err == keyring.ErrNotFound {
+			return "", nil
+		}
+		return "", fmt.Errorf("failed to retrieve password from keychain: %v", err)
+	}
+
+	return password, nil
+}
+
+// DeleteSudoPassword removes the saved sudo password from the system keychain
+func DeleteSudoPassword() error {
+	err := keyring.Delete(serviceName, accountName)
+	if err != nil {
+		// If the password doesn't exist, that's fine
+		if err == keyring.ErrNotFound {
+			return nil
+		}
+		return fmt.Errorf("failed to delete password from keychain: %v", err)
+	}
+
+	log.Println("Password removed from keychain")
+	return nil
+}
+
+// HasSavedSudoPassword checks if a sudo password is saved in the keychain
+func HasSavedSudoPassword() bool {
+	_, err := keyring.Get(serviceName, accountName)
+	return err == nil
+}
+
+// GetPasswordStatusText returns a user-friendly status text for password saving
+func GetPasswordStatusText() string {
+	if HasSavedSudoPassword() {
+		return "Password saved in keychain"
+	}
+	return "No password saved"
+}