import { CSRFConfig } from './types';
import { HttpContext, HttpRequest, HttpResponse } from '../types';
export declare class CSRFMiddleware<Req extends HttpRequest = HttpRequest, Res extends HttpResponse = HttpResponse> {
    private config;
    constructor(config?: CSRFConfig);
    middleware(): (req: Req, res: Res, next: () => void) => void;
    process(context: HttpContext): void;
    private shouldSkipCSRF;
    private requiresCSRFVerification;
    private ensureCSRFToken;
    private verifyCSRFToken;
    private getTokenFromRequest;
    private verifyStoredToken;
    private handleCSRFError;
    generateToken(): string;
    verifyToken(token: string, storedToken: string): boolean;
    updateConfig(newConfig: Partial<CSRFConfig>): void;
    getConfig(): CSRFConfig;
}
export declare function createCSRFMiddleware<Req extends HttpRequest = HttpRequest, Res extends HttpResponse = HttpResponse>(config?: CSRFConfig): CSRFMiddleware<Req, Res>;
export declare function createCSRFTokenEndpoint(csrfMiddleware: CSRFMiddleware): (req: HttpRequest, res: HttpResponse) => void;
export declare function createExpressCSRFTokenEndpoint(csrfMiddleware: CSRFMiddleware): (req: any, res: any) => void;