/**
 * Sanitize HTML to prevent XSS attacks while preserving print template styling
 *
 * This utility provides a centralized configuration for DOMPurify to ensure
 * consistent security across all print template components.
 *
 * @param html - The HTML string to sanitize
 * @returns Sanitized HTML string safe for rendering
 */
export declare function sanitizeTemplateHtml(html: string): string;
/**
 * Sanitize user input in config fields to prevent XSS attacks
 *
 * Only sanitizes the 'content' field in customText blocks where users can enter arbitrary HTML.
 * Other fields are safe and should not be sanitized to preserve their intended values.
 *
 * @param fields - Array of config fields
 * @param blockTag - The block tag to determine which fields need sanitization
 * @returns Array of config fields with sanitized values
 */
export declare function sanitizeConfigFields(fields: ConfigField[], blockTag: string): ConfigField[];
/**
 * Sanitize all blocks before saving to database
 *
 * Ensures customText block's content field is sanitized to prevent XSS.
 * Template HTML from block definitions is not sanitized as it's from trusted source.
 *
 * @param blocks - Array of template blocks
 * @returns Array of blocks with sanitized content
 */
export declare function sanitizeBlocks(blocks: FdoPrintTemplateBlock[]): FdoPrintTemplateBlock[];
import type { ConfigField } from '../definitions/block-definitions';