add bconsole on backup management dashboard with limited commands

backend/internal/backup/service.go

@@ -451,6 +451,42 @@ func (s *Service) getClientNameFromJob(ctx context.Context, jobID int) string {
 	return ""
 }
 
+// ExecuteBconsoleCommand executes a bconsole command and returns the output
+func (s *Service) ExecuteBconsoleCommand(ctx context.Context, command string) (string, error) {
+	// Sanitize command
+	command = strings.TrimSpace(command)
+	if command == "" {
+		return "", fmt.Errorf("command cannot be empty")
+	}
+
+	// Remove any existing quit commands from user input
+	command = strings.TrimSuffix(strings.ToLower(command), "quit")
+	command = strings.TrimSpace(command)
+
+	// Ensure command ends with quit
+	commandWithQuit := command + "\nquit"
+
+	// Use printf instead of echo -e for better compatibility
+	// Escape single quotes in command
+	escapedCommand := strings.ReplaceAll(commandWithQuit, "'", "'\"'\"'")
+
+	// Execute bconsole command using printf to avoid echo -e issues
+	cmd := exec.CommandContext(ctx, "sh", "-c", fmt.Sprintf("printf '%%s\\n' '%s' | bconsole", escapedCommand))
+
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		// bconsole may return non-zero exit code even on success, so check output
+		outputStr := string(output)
+		if len(outputStr) > 0 {
+			// If there's output, return it even if there's an error
+			return outputStr, nil
+		}
+		return outputStr, fmt.Errorf("bconsole error: %w", err)
+	}
+
+	return string(output), nil
+}
+
 // upsertJob inserts or updates a job in the database
 func (s *Service) upsertJob(ctx context.Context, job Job) error {
 	query := `