import { DynamicModule, INestApplication } from '@nestjs/common';
import { OpenAPIObject } from '@nestjs/swagger';
import { NestJSRedoxOptions, RedocOptions } from './types';
/** ------
 * Disclaimer: some functions were extracted from https://github.com/nestjs/swagger/blob/master/lib/swagger-module.ts
 * and changed in that way it renders redoc instead of swagger ui.
 */
export declare class NestjsRedoxModule {
    protected static redocOptions: RedocOptions;
    protected static options: NestJSRedoxOptions;
    protected static preparedRedocJS?: string;
    protected static isFastifyBasicAuthRegistered: boolean;
    static register(options?: NestJSRedoxOptions, redocOptions?: RedocOptions): DynamicModule;
    /**
     * setups RedoxMdoule with generating and serving redoc html page using expressjs or fastify.
     * @param path          URI path to the redoc page
     * @param app           The nest application that is currently serving
     * @param documentOrURL The OpenAPI Object or a function that creates the object or a static URL
     * @param options       NestJSRedoxOptions. If undefined default options are used.
     * @param redocOptions  Officical options by redoc.
     */
    static setup(path: string, app: INestApplication, documentOrURL: OpenAPIObject | (() => OpenAPIObject) | string, options?: NestJSRedoxOptions, redocOptions?: RedocOptions): void;
    private static serveStatic;
    private static serveDocuments;
    /**
     * fixes content security policy issue see issue #1
     * @param httpAdapter
     * @param res
     * @private
     */
    private static setContentSecurityHeader;
    /**
     * overwrites the HTTP header with that ones from RedoxOptions.
     * @param newHeaders foreach header use one attribute and value
     */
    private static overwriteHeadersWith;
    private static applyRedocExtensions;
}